US Geography / US Weather / South Dakota Weather / Spearfish |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 35° | 38° | 44° | 56° | 66° | 76° | 85° | 84° | 72° | 61° | 46° | 37° |
| Avg. Low | 12° | 16° | 22° | 32° | 42° | 51° | 57° | 55° | 45° | 35° | 24° | 15° |
| Mean | 24° | 27° | 34° | 45° | 55° | 64° | 72° | 70° | 58° | 48° | 35° | 26° |
| Avg. Precip. | 0.6 in | 0.7 in | 1.5 in | 2.7 in | 3.8 in | 4.1 in | 2.0 in | 1.8 in | 1.7 in | 1.7 in | 0.9 in | 0.8 in |
Degrees in Fahrenheit
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