US Geography / US Weather / South Dakota Weather / Keystone |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 34° | 38° | 44° | 52° | 61° | 72° | 78° | 78° | 68° | 58° | 44° | 36° |
| Avg. Low | 7° | 10° | 16° | 26° | 34° | 44° | 48° | 46° | 37° | 28° | 18° | 10° |
| Mean | 21° | 24° | 30° | 38° | 48° | 58° | 64° | 64° | 54° | 44° | 32° | 24° |
| Avg. Precip. | 0.3 in | 0.5 in | 0.9 in | 2.3 in | 3.5 in | 4.1 in | 3.3 in | 2.1 in | 1.5 in | 1.1 in | 0.5 in | 0.4 in |
Degrees in Fahrenheit
Copyright © 2008 countrystudies.us