US Geography / US Weather / Iowa Weather / Marshalltown |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 26° | 32° | 44° | 58° | 71° | 81° | 84° | 82° | 74° | 62° | 46° | 30° |
| Avg. Low | 7° | 12° | 24° | 36° | 48° | 57° | 61° | 58° | 48° | 38° | 26° | 14° |
| Mean | 17° | 22° | 35° | 48° | 60° | 68° | 74° | 70° | 62° | 50° | 37° | 22° |
| Avg. Precip. | 0.8 in | 1.1 in | 2.4 in | 3.3 in | 4.0 in | 4.8 in | 4.3 in | 4.6 in | 3.7 in | 2.5 in | 1.7 in | 1.3 in |
Degrees in Fahrenheit
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