US Geography / US Weather / Iowa Weather / Waterloo |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 24 | 28 | 44 | 58 | 71 | 80 | 84 | 81 | 74 | 61 | 45 | 28 |
| Avg. Low | 5 | 10 | 25 | 37 | 48 | 57 | 62 | 58 | 50 | 38 | 26 | 11 |
| Mean | 15 | 20 | 34 | 48 | 60 | 68 | 74 | 70 | 62 | 50 | 36 | 20 |
| Avg. Precip. | 0.8 in | 1.1 in | 2.3 in | 3.3 in | 4.1 in | 4.5 in | 4.8 in | 3.6 in | 3.5 in | 2.6 in | 1.8 in | 1.3 in |
Degrees in Fahrenheit
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