US Geography / US Weather / Iowa Weather / Sioux City |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 27 | 34 | 45 | 62 | 74 | 82 | 86 | 84 | 74 | 64 | 46 | 30 |
| Avg. Low | 7 | 14 | 25 | 38 | 50 | 58 | 64 | 62 | 51 | 38 | 26 | 12 |
| Mean | 18 | 24 | 36 | 50 | 62 | 71 | 76 | 74 | 64 | 52 | 36 | 22 |
| Avg. Precip. | 0.6 in | 0.7 in | 2.0 in | 2.3 in | 3.7 in | 3.7 in | 3.3 in | 3.0 in | 2.9 in | 1.9 in | 1.1 in | 0.8 in |
Degrees in Fahrenheit
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