US Geography / US Weather / Iowa Weather / Carter Lake |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 31 | 37 | 48 | 64 | 74 | 84 | 87 | 85 | 76 | 65 | 48 | 34 |
| Avg. Low | 10 | 16 | 27 | 38 | 50 | 60 | 65 | 62 | 54 | 41 | 28 | 15 |
| Mean | 21 | 27 | 38 | 52 | 62 | 72 | 77 | 74 | 65 | 54 | 38 | 25 |
| Avg. Precip. | 0.7 in | 0.8 in | 2.0 in | 2.7 in | 4.5 in | 3.9 in | 3.5 in | 3.3 in | 3.7 in | 2.3 in | 1.5 in | 1.0 in |
Degrees in Fahrenheit
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