| Rank | Average Precipitation Days ▼ | School District / Population |
| 1. | 69.43 days | Bellevue Community School District / 4,704 |
| 2. | 68.74 days | Preston Community School District / 1,842 |
| 3. | 68.66 days | Northeast Community School District / 2,941 |
| 4. | 68.64 days | East Central Community School District / 4,005 |
| 5. | 68.64 days | Andrew Community School District / 1,551 |
| 6. | 68.61 days | Delwood Community School District / 1,123 |
| 7. | 68.54 days | Maquoketa Community School District / 8,888 |
| 8. | 68.53 days | Dubuque Community School District / 76,893 |
| 9. | 68.06 days | Fort Madison Community School District / 17,216 |
| 10. | 68.00 days | Midland Community School District / 3,620 |
| 11. | 67.97 days | New London Community School District / 2,987 |
| 12. | 67.83 days | Wapello Community School District / 3,582 |
| 13. | 67.83 days | Morning Sun Community School District / 1,362 |
| 14. | 67.78 days | Mediapolis Community School District / 4,736 |
| 15. | 67.71 days | Cedar Rapids Community School District / 120,797 |
| 16. | 67.70 days | Winfield-Mount Union Community School District / 1,651 |
| 17. | 67.69 days | Mount Pleasant Community School District / 12,907 |
| 18. | 67.67 days | Waco Community School District / 3,209 |
| 19. | 67.67 days | Central Clinton Community School District / 9,489 |
| 20. | 67.67 days | Bennett Community School District / 1,138 |
| 21. | 67.67 days | Washington Community School District / 10,221 |
| 22. | 67.66 days | Calamus-Wheatland Community School District / 2,301 |
| 23. | 67.63 days | Olin Consolidated School District / 1,480 |
| 24. | 67.60 days | Camanche Community School District / 5,616 |
| 24. | 67.60 days | Central Lee Community School District / 5,129 |
| 26. | 67.59 days | Durant Community School District / 3,345 |
| 27. | 67.58 days | Central City Community School District / 2,998 |
| 28. | 67.57 days | Western Dubuque Community School District / 22,060 |
| 29. | 67.57 days | Danville Community School District / 2,743 |
| 30. | 67.54 days | Clayton Ridge Community School District / 5,044 |
| 31. | 67.54 days | Marion Independent School District / 12,255 |
| 32. | 67.54 days | Louisa-Muscatine Community School District / 4,762 |
| 33. | 67.53 days | Linn-Mar Community School District / 37,068 |
| 34. | 67.52 days | Bettendorf Community School District / 23,151 |
| 35. | 67.51 days | North Scott Community School District / 15,673 |
| 36. | 67.49 days | Starmont Community School District / 3,814 |
| 37. | 67.45 days | Central Community School District / 3,329 |
| 38. | 67.42 days | Keokuk Community School District / 12,931 |
| 39. | 67.40 days | English Valleys Community School District / 2,890 |
| 40. | 67.37 days | Sigourney Community School District / 3,751 |
| 41. | 67.37 days | Van Buren Community School District / 5,065 |
| 42. | 67.37 days | Anamosa Community School District / 9,287 |
| 43. | 67.35 days | College Community School District / 24,875 |
| 44. | 67.29 days | Springville Community School District / 2,568 |
| 45. | 67.28 days | Monticello Community School District / 6,621 |
| 46. | 67.27 days | West Delaware County Community School District / 9,003 |
| 47. | 67.11 days | Harmony Community School District / 2,823 |
| 48. | 67.10 days | West Burlington Independent School District / 2,839 |
| 49. | 67.07 days | Edgewood-Colesburg Community School District / 2,949 |
| 50. | 67.07 days | Burlington Community School District / 30,070 |
| 51. | 67.04 days | West Central Community School District / 1,871 |
| 52. | 67.01 days | Tipton Community School District / 4,999 |
| 53. | 67.01 days | Keota Community School District / 2,064 |
| 54. | 66.99 days | North Cedar Community School District / 5,101 |
| 55. | 66.98 days | Williamsburg Community School District / 6,496 |
| 56. | 66.95 days | Solon Community School District / 6,638 |
| 57. | 66.95 days | Fairfield Community School District / 15,659 |
| 58. | 66.93 days | Mount Vernon Community School District / 6,779 |
| 59. | 66.93 days | Maquoketa Valley Community School District / 4,450 |
| 60. | 66.93 days | Lisbon Community School District / 2,816 |
| 61. | 66.91 days | East Buchanan Community School District / 2,905 |
| 62. | 66.90 days | Davenport Community School District / 108,996 |
| 63. | 66.86 days | North Linn Community School District / 3,653 |
| 64. | 66.84 days | Alburnett Community School District / 3,524 |
| 65. | 66.82 days | West Branch Community School District / 4,319 |
| 66. | 66.81 days | Muscatine Community School District / 29,190 |
| 67. | 66.77 days | Columbus Community School District / 4,667 |
| 68. | 66.68 days | Clinton Community School District / 25,889 |
| 69. | 66.65 days | Wilton Community School District / 4,251 |
| 70. | 66.62 days | H-L-V Community School District / 2,207 |
| 71. | 66.61 days | Highland Community School District / 4,128 |
| 72. | 66.60 days | Montezuma Community School District / 3,480 |
| 73. | 66.59 days | North Fayette Community School District / 6,122 |
| 74. | 66.59 days | Pekin Community School District / 3,690 |
| 75. | 66.58 days | Independence Community School District / 9,001 |
| 76. | 66.56 days | West Liberty Community School District / 6,333 |
| 77. | 66.55 days | Iowa Valley Community School District / 3,512 |
| 78. | 66.55 days | Clear Creek-Amana Community School District / 12,321 |
| 79. | 66.52 days | Tri-County Community School District / 1,682 |
| 80. | 66.45 days | MFL MarMac Community School District / 5,471 |
| 81. | 66.45 days | Iowa City Community School District / 110,675 |
| 82. | 66.43 days | Brooklyn-Guernsey-Malcom Community School District / 3,173 |
| 83. | 66.42 days | Pleasant Valley Community School District / 20,099 |
| 84. | 66.40 days | South Winneshiek Community School District / 4,523 |
| 85. | 66.39 days | Mid-Prairie Community School District / 9,096 |
| 86. | 66.28 days | Center Point-Urbana Community School District / 5,868 |
| 87. | 66.22 days | Oelwein Community School District / 8,702 |
| 88. | 66.20 days | New Hampton Community School District / 7,238 |
| 89. | 66.16 days | Lone Tree Community School District / 2,278 |
| 90. | 66.14 days | Fredericksburg Community School District / 1,824 |
| 91. | 66.00 days | Decorah Community School District / 11,789 |
| 92. | 65.97 days | Grinnell-Newburg Community School District / 12,345 |
| 93. | 65.84 days | Valley Community School District / 3,065 |
| 94. | 65.82 days | North Mahaska Community School District / 2,811 |
| 95. | 65.80 days | Belle Plaine Community School District / 3,236 |
| 96. | 65.80 days | Union Community School District / 6,347 |
| 97. | 65.74 days | Seymour Community School District / 2,410 |
| 98. | 65.73 days | Postville Community School District / 3,489 |
| 99. | 65.71 days | Wayne Community School District / 3,819 |
| 100. | 65.63 days | North Tama County Community School District / 3,086 |
| 101. | 65.62 days | Cardinal Community School District / 4,014 |
| 102. | 65.61 days | Ottumwa Community School District / 28,949 |
| 103. | 65.45 days | Vinton-Shellsburg Community School District / 10,383 |
| 104. | 65.43 days | Benton Community School District / 9,202 |
| 105. | 65.42 days | Lineville-Clio Community School District / 533 |
| 106. | 65.40 days | Nashua-Plainfield Community School District / 3,878 |
| 107. | 65.39 days | Turkey Valley Community School District / 2,954 |
| 108. | 65.35 days | Riceville Community School District / 2,655 |
| 109. | 65.29 days | Eastern Allamakee Community School District / 2,710 |
| 110. | 65.25 days | North Winneshiek Community School District / 2,037 |
| 111. | 65.19 days | Lynnville-Sully Community School District / 3,164 |
| 112. | 65.17 days | Sumner Community School District / 3,448 |
| 113. | 65.16 days | South Tama County Community School District / 8,674 |
| 114. | 65.11 days | Mormon Trail Community School District / 1,675 |
| 115. | 65.08 days | North Polk Community School District / 6,798 |
| 116. | 65.04 days | Fremont Community School District / 1,135 |
| 117. | 65.03 days | Eddyville-Blakesburg Community School District / 5,108 |
| 118. | 64.95 days | Oskaloosa Community School District / 15,978 |
| 119. | 64.90 days | Gilbert Community School District / 6,714 |
| 120. | 64.86 days | Davis County Community School District / 8,677 |
| 121. | 64.77 days | Moulton-Udell Community School District / 1,375 |
| 122. | 64.74 days | Bondurant-Farrar Community School District / 6,685 |
| 123. | 64.74 days | Allamakee Community School District / 8,539 |
| 124. | 64.73 days | Southeast Polk Community School District / 33,956 |
| 125. | 64.72 days | Howard-Winneshiek Community School District / 9,042 |
| 126. | 64.70 days | Colfax-Mingo Community School District / 4,262 |
| 127. | 64.66 days | Indianola Community School District / 20,037 |
| 128. | 64.65 days | Madrid Community School District / 3,512 |
| 129. | 64.64 days | Saydel Community School District / 8,103 |
| 130. | 64.61 days | Ankeny Community School District / 53,970 |
| 131. | 64.61 days | Johnston Community School District / 34,241 |
| 132. | 64.58 days | Central Decatur Community School District / 4,215 |
| 133. | 64.58 days | Urbandale Community School District / 20,873 |
| 134. | 64.44 days | GMG Community School District / 1,782 |
| 135. | 64.44 days | Nevada Community School District / 8,919 |
| 136. | 64.39 days | Southeast Warren Community School District / 3,145 |
| 137. | 64.38 days | Woodward-Granger Community School District / 5,287 |
| 138. | 64.36 days | Ames Community School District / 58,297 |
| 139. | 64.34 days | Ballard Community School District / 7,081 |
| 140. | 64.30 days | Boone Community School District / 14,429 |
| 141. | 64.30 days | Collins-Maxwell Community School District / 2,689 |
| 142. | 64.27 days | Baxter Community School District / 1,717 |
| 143. | 64.26 days | Melcher-Dallas Community School District / 1,674 |
| 144. | 64.26 days | Russell Community School District / 1,065 |
| 145. | 64.26 days | Gladbrook-Reinbeck Community School District / 4,417 |
| 146. | 64.26 days | Jesup Community School District / 5,895 |
| 147. | 64.23 days | Colo-Nesco Community School District / 3,044 |
| 148. | 64.21 days | Norwalk Community School District / 11,717 |
| 149. | 64.20 days | Van Meter Community School District / 3,282 |
| 150. | 64.19 days | Chariton Community School District / 8,330 |
| 151. | 64.18 days | Dallas Center-Grimes Community School District / 10,190 |
| 152. | 64.17 days | United Community School District / 2,145 |
| 153. | 64.17 days | Tripoli Community School District / 2,771 |
| 154. | 64.17 days | Des Moines Independent Community School District / 205,612 |
| 155. | 64.11 days | Charles City Community School District / 11,219 |
| 156. | 64.07 days | Martensdale-St. Marys Community School District / 3,019 |
| 157. | 64.06 days | Clarke Community School District / 8,023 |
| 158. | 64.03 days | Waverly-Shell Rock Community School District / 13,825 |
| 159. | 64.00 days | Centerville Community School District / 8,881 |
| 160. | 63.95 days | West Des Moines Community School District / 65,738 |
| 161. | 63.94 days | Waukee Community School District / 41,420 |
| 162. | 63.91 days | Clarksville Community School District / 2,094 |
| 163. | 63.76 days | Interstate 35 Community School District / 4,979 |
| 164. | 63.71 days | Wapsie Valley Community School District / 3,790 |
| 165. | 63.71 days | East Marshall Community School District / 4,093 |
| 166. | 63.65 days | Newton Community School District / 21,242 |
| 167. | 63.61 days | Roland-Story Community School District / 5,841 |
| 168. | 63.59 days | Rudd-Rockford-Marble Rock Community School District / 2,956 |
| 169. | 63.58 days | Denver Community School District / 3,847 |
| 170. | 63.58 days | Albia Community School District / 7,435 |
| 171. | 63.54 days | Greene Community School District / 2,045 |
| 172. | 63.50 days | Pleasantville Community School District / 3,661 |
| 173. | 63.46 days | Grundy Center Community School District / 3,725 |
| 174. | 63.45 days | Carlisle Community School District / 8,924 |
| 175. | 63.45 days | PCM Community School District / 5,314 |
| 176. | 63.42 days | Knoxville Community School District / 11,702 |
| 177. | 63.30 days | Stratford Community School District / 1,209 |
| 178. | 63.22 days | St. Ansgar Community School District / 4,065 |
| 179. | 63.20 days | Marshalltown Community School District / 30,396 |
| 180. | 63.20 days | Perry Community School District / 10,091 |
| 181. | 63.19 days | Dunkerton Community School District / 2,499 |
| 182. | 63.15 days | BCLUW Community School District / 3,214 |
| 183. | 63.14 days | Osage Community School District / 5,969 |
| 184. | 63.14 days | Waterloo Community School District / 77,406 |
| 185. | 63.13 days | Janesville Consolidated School District / 2,455 |
| 186. | 63.11 days | Earlham Community School District / 3,358 |
| 187. | 63.11 days | Allison-Bristow Community School District / 4,070 |
| 188. | 63.09 days | Winterset Community School District / 8,821 |
| 189. | 63.08 days | Lamoni Community School District / 3,133 |
| 190. | 63.08 days | Hudson Community School District / 3,327 |
| 191. | 63.06 days | Adel-De Soto-Minburn Community School District / 8,067 |
| 192. | 63.05 days | Murray Community School District / 1,200 |
| 193. | 63.04 days | West Central Valley Community School District / 5,965 |
| 194. | 63.03 days | Cedar Falls Community School District / 41,989 |
| 195. | 63.03 days | Dike-New Hartford Community School District / 4,498 |
| 196. | 62.91 days | Moravia Community School District / 2,300 |
| 197. | 62.76 days | East Union Community School District / 3,256 |
| 198. | 62.73 days | West Marshall Community School District / 4,951 |
| 199. | 62.73 days | Diagonal Community School District / 662 |
| 200. | 62.67 days | Ogden Community School District / 4,003 |
| 201. | 62.66 days | Pella Community School District / 15,556 |
| 202. | 62.61 days | Guthrie Center Community School District / 2,625 |
| 203. | 62.57 days | Orient-Macksburg Community School District / 1,209 |
| 204. | 62.55 days | AGWSR Community School District / 4,849 |
| 205. | 62.54 days | Mason City Community School District / 28,622 |
| 206. | 62.49 days | Twin Cedars Community School District / 2,548 |
| 207. | 62.49 days | Eldora-New Providence Community School District / 3,765 |
| 208. | 62.48 days | Adair-Casey Community School District / 1,914 |
| 209. | 62.47 days | Creston Community School District / 9,674 |
| 210. | 62.46 days | South Hamilton Community School District / 3,602 |
| 211. | 62.36 days | Hubbard-Radcliffe Community School District / 2,896 |
| 212. | 62.34 days | Mount Ayr Community School District / 4,141 |
| 213. | 62.30 days | Lenox Community School District / 2,032 |
| 214. | 62.30 days | Sheffield Chapin Meservey Thornton Community School District / 4,716 |
| 215. | 62.26 days | Nodaway Valley Community School District / 4,119 |
| 216. | 62.22 days | Bedford Community School District / 3,075 |
| 217. | 62.21 days | Prescott Community School District / 645 |
| 218. | 62.20 days | Aplington-Parkersburg Community School District / 4,304 |
| 219. | 62.18 days | Hampton-Dumont Community School District / 6,739 |
| 220. | 62.15 days | Panorama Community School District / 4,575 |
| 221. | 62.12 days | Nora Springs-Rock Falls Community School District / 2,466 |
| 222. | 62.04 days | Jefferson-Scranton Community School District / 6,062 |
| 223. | 62.00 days | Paton-Churdan Community School District / 1,112 |
| 224. | 61.99 days | East Greene Community School District / 1,714 |
| 225. | 61.92 days | Rockwell-Swaledale Community School District / 1,970 |
| 226. | 61.87 days | Coon Rapids-Bayard Community School District / 2,822 |
| 227. | 61.86 days | Southeast Webster-Grand Community School District / 3,156 |
| 228. | 61.82 days | Iowa Falls Community School District / 7,064 |
| 229. | 61.81 days | Alden Community School District / 1,572 |
| 230. | 61.81 days | Cal Community School District / 1,713 |
| 231. | 61.79 days | Clearfield Community School District / 688 |
| 232. | 61.73 days | Fort Dodge Community School District / 28,658 |
| 233. | 61.71 days | Webster City Community School District / 9,959 |
| 234. | 61.65 days | Clear Lake Community School District / 8,752 |
| 235. | 61.64 days | Prairie Valley Community School District / 4,144 |
| 236. | 61.58 days | Ventura Community School District / 1,683 |
| 237. | 61.56 days | Northeast Hamilton Community School District / 1,390 |
| 238. | 61.50 days | New Market Community School District / 957 |
| 239. | 61.50 days | North Central Community School District / 5,594 |
| 240. | 61.41 days | Dows Community School District / 801 |
| 241. | 61.31 days | Belmond-Klemme Community School District / 4,389 |
| 242. | 61.15 days | Corning Community School District / 2,814 |
| 243. | 61.15 days | Exira Community School District / 1,825 |
| 244. | 61.07 days | C and M Community School District / 2,951 |
| 245. | 61.06 days | Manson Northwest Webster Community School District / 4,280 |
| 246. | 61.05 days | Anita Community School District / 1,759 |
| 247. | 61.03 days | Glidden-Ralston Community School District / 2,080 |
| 248. | 60.97 days | Eagle Grove Community School District / 4,693 |
| 249. | 60.87 days | Clarinda Community School District / 7,277 |
| 250. | 60.75 days | Elk Horn-Kimballton Community School District / 1,467 |
| 251. | 60.65 days | Audubon Community School District / 3,382 |
| 252. | 60.64 days | Atlantic Community School District / 8,459 |
| 253. | 60.59 days | Southern Cal Community School District / 2,962 |
| 254. | 60.56 days | Northwood-Kensett Community School District / 3,314 |
| 255. | 60.48 days | Walnut Community School District / 1,219 |
| 256. | 60.42 days | Griswold Community School District / 3,404 |
| 257. | 60.36 days | Lake Mills Community School District / 3,576 |
| 258. | 60.20 days | Gilmore City-Bradgate Community School District / 1,012 |
| 259. | 60.07 days | A-H-S-T Community School District / 3,146 |
| 260. | 60.07 days | Garner-Hayfield Community School District / 3,852 |
| 261. | 59.93 days | Humboldt Community School District / 7,467 |
| 262. | 59.90 days | Villisca Community School District / 2,189 |
| 263. | 59.85 days | Clarion-Goldfield Community School District / 4,653 |
| 264. | 59.70 days | Forest City Community School District / 7,723 |
| 265. | 59.69 days | Carroll Community School District / 14,060 |
| 266. | 59.69 days | Harlan Community School District / 8,844 |
| 267. | 59.19 days | Rockwell City-Lytton Community School District / 3,246 |
| 268. | 59.13 days | Pomeroy-Palmer Community School District / 1,528 |
| 269. | 59.04 days | South Page Community School District / 1,510 |
| 270. | 58.90 days | Stanton Community School District / 1,214 |
| 271. | 58.89 days | Tri-Center Community School District / 3,553 |
| 272. | 58.84 days | Shenandoah Community School District / 6,133 |
| 273. | 58.69 days | Riverside Community School District / 4,115 |
| 274. | 58.67 days | Ar-We-Va Community School District / 2,230 |
| 275. | 58.65 days | Manning Community School District / 2,240 |
| 276. | 58.62 days | Farragut Community School District / 1,483 |
| 277. | 58.61 days | IKM Community School District / 4,641 |
| 278. | 58.55 days | Denison Community School District / 10,354 |
| 279. | 58.50 days | Schleswig Community School District / 1,630 |
| 280. | 58.24 days | Hamburg Community School District / 1,478 |
| 281. | 58.17 days | Pocahontas Area Community School District / 5,262 |
| 282. | 58.16 days | Twin Rivers Community School District / 1,193 |
| 283. | 58.08 days | Woden-Crystal Lake Community School District / 912 |
| 284. | 57.97 days | Battle Creek-Ida Grove Community School District / 3,937 |
| 285. | 57.96 days | Newell-Fonda Community School District / 2,569 |
| 286. | 57.77 days | Essex Community School District / 1,445 |
| 287. | 57.68 days | Red Oak Community School District / 6,975 |
| 288. | 57.65 days | Treynor Community School District / 3,013 |
| 289. | 57.62 days | Corwith-Wesley Community School District / 921 |
| 290. | 57.62 days | Woodbine Community School District / 2,660 |
| 291. | 57.58 days | Wall Lake View Auburn Community School District / 5,728 |
| 292. | 57.54 days | West Hancock Community School District / 4,119 |
| 293. | 57.29 days | Clay Central-Everly Community School District / 2,322 |
| 294. | 57.25 days | Hartley-Melvin-Sanborn Community School District / 4,250 |
| 295. | 57.21 days | Underwood Community School District / 4,036 |
| 296. | 57.20 days | Odebolt-Arthur Community School District / 2,227 |
| 297. | 57.17 days | South O'Brien Community School District / 4,582 |
| 298. | 57.14 days | Nishna Valley Community School District / 1,334 |
| 299. | 57.08 days | Titonka Consolidated School District / 897 |
| 300. | 57.05 days | Alta Community School District / 2,893 |
| 301. | 57.03 days | Sioux Central Community School District / 2,581 |
| 302. | 57.02 days | Cherokee Community School District / 6,432 |
| 303. | 56.95 days | North Iowa Community School District / 3,147 |
| 304. | 56.94 days | Sidney Community School District / 1,811 |
| 305. | 56.89 days | Charter Oak-Ute Community School District / 2,099 |
| 306. | 56.89 days | Boyer Valley Community School District / 2,740 |
| 307. | 56.84 days | Aurelia Community School District / 1,646 |
| 308. | 56.79 days | Logan-Magnolia Community School District / 2,902 |
| 309. | 56.76 days | North Kossuth Community School District / 2,237 |
| 310. | 56.68 days | West Bend-Mallard Community School District / 2,108 |
| 311. | 56.66 days | Emmetsburg Community School District / 4,971 |
| 312. | 56.65 days | Sibley-Ocheyedan Community School District / 4,603 |
| 313. | 56.62 days | Galva-Holstein Community School District / 2,573 |
| 314. | 56.61 days | Missouri Valley Community School District / 5,140 |
| 315. | 56.60 days | Lu Verne Community School District / 506 |
| 316. | 56.57 days | Algona Community School District / 9,417 |
| 317. | 56.54 days | Sac Community School District / 2,765 |
| 318. | 56.50 days | Storm Lake Community School District / 12,212 |
| 319. | 56.49 days | Schaller-Crestland Community School District / 2,388 |
| 320. | 56.47 days | Harris-Lake Park Community School District / 1,717 |
| 321. | 56.36 days | Albert City-Truesdale Community School District / 1,472 |
| 322. | 56.34 days | Laurens-Marathon Community School District / 2,182 |
| 323. | 56.31 days | South Clay Community School District / 910 |
| 324. | 56.22 days | Spencer Community School District / 12,952 |
| 325. | 56.16 days | Sentral Community School District / 1,028 |
| 326. | 56.14 days | Fremont-Mills Community School District / 2,550 |
| 327. | 56.13 days | Marcus-Meriden-Cleghorn Community School District / 2,921 |
| 328. | 56.08 days | River Valley Community School District / 2,583 |
| 329. | 56.06 days | Armstrong-Ringsted Community School District / 2,149 |
| 330. | 56.03 days | Sheldon Community School District / 7,292 |
| 331. | 55.96 days | Lewis Central Community School District / 15,278 |
| 332. | 55.93 days | Malvern Community School District / 3,384 |
| 333. | 55.89 days | Maple Valley Community School District / 4,404 |
| 334. | 55.50 days | West Harrison Community School District / 2,638 |
| 335. | 55.47 days | Terril Community School District / 993 |
| 336. | 55.41 days | Council Bluffs Community School District / 59,876 |
| 337. | 55.37 days | Okoboji Community School District / 6,700 |
| 338. | 55.34 days | Graettinger Community School District / 2,201 |
| 339. | 55.17 days | Glenwood Community School District / 11,075 |
| 340. | 54.97 days | Spirit Lake Community School District / 8,022 |
| 341. | 54.85 days | Ruthven-Ayrshire Community School District / 1,409 |
| 342. | 54.53 days | Estherville Lincoln Central Community School District / 7,995 |
| 343. | 54.40 days | Remsen-Union Community School District / 3,013 |
| 344. | 54.39 days | Le Mars Community School District / 13,419 |
| 345. | 54.28 days | MOC-Floyd Valley Community School District / 11,218 |
| 346. | 54.16 days | Boyden-Hull Community School District / 4,358 |
| 347. | 53.86 days | George-Little Rock Community School District / 2,698 |
| 348. | 53.85 days | Whiting Community School District / 1,328 |
| 349. | 53.80 days | West Monona Community School District / 4,003 |
| 350. | 53.67 days | Sioux Center Community School District / 8,923 |
| 351. | 53.56 days | Westwood Community School District / 3,153 |
| 352. | 53.51 days | West Sioux Community School District / 3,988 |
| 353. | 53.49 days | Akron-Westfield Community School District / 3,200 |
| 354. | 53.29 days | Anthon-Oto Community School District / 1,381 |
| 355. | 53.10 days | Hinton Community School District / 2,690 |
| 356. | 53.02 days | Kingsley-Pierson Community School District / 2,646 |
| 357. | 52.62 days | Sergeant Bluff-Luton Community School District / 6,278 |
| 358. | 52.50 days | Sioux City Community School District / 83,385 |
| 359. | 52.48 days | West Lyon Community School District / 4,823 |
| 360. | 52.43 days | Lawton-Bronson Community School District / 3,078 |
| 361. | 52.40 days | Central Lyon Community School District / 4,018 |
| 362. | 52.14 days | Woodbury Central Community School District / 2,901 |
| 363. | 52.06 days | Rock Valley Community School District / 5,192 |
Please note that we only rank locations with 'Average Precipitation Days' data. The rank above might not be a complete list. Locations without 'Average Precipitation Days' data are not listed.
