US Geography / US Weather / Iowa Weather / Spencer |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 24 | 28 | 41 | 58 | 71 | 80 | 84 | 81 | 72 | 61 | 44 | 27 |
| Avg. Low | 4 | 10 | 22 | 35 | 46 | 56 | 61 | 58 | 48 | 36 | 24 | 8 |
| Mean | 14 | 20 | 32 | 47 | 58 | 68 | 74 | 70 | 61 | 48 | 34 | 18 |
| Avg. Precip. | 0.5 in | 0.7 in | 1.9 in | 2.7 in | 3.6 in | 3.9 in | 4.1 in | 4.0 in | 3.3 in | 2.1 in | 1.1 in | 0.7 in |
Degrees in Fahrenheit
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