US Geography / US Weather / Iowa Weather / Johnston |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
Avg. High | 27 | 34 | 45 | 60 | 72 | 80 | 85 | 82 | 74 | 64 | 47 | 31 |
Avg. Low | 8 | 12 | 25 | 37 | 48 | 58 | 64 | 60 | 51 | 38 | 27 | 14 |
Mean | 18 | 24 | 35 | 48 | 61 | 70 | 75 | 72 | 64 | 52 | 37 | 24 |
Avg. Precip. | 0.7 in | 0.9 in | 2.3 in | 3.3 in | 3.9 in | 5.1 in | 4.0 in | 3.8 in | 3.3 in | 2.5 in | 1.7 in | 1.1 in |
Degrees in Fahrenheit
Copyright 2008 countrystudies.us