Weather World
City of Spearfish, SD
Spearfish Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 33°F Lo 17°F | Hi 34°F Lo 16°F | Hi 46°F Lo 26°F | Hi 53°F Lo 32°F | Hi 64°F Lo 43°F | Hi 76°F Lo 54°F | Hi 86°F Lo 61°F | Hi 83°F Lo 59°F | Hi 76°F Lo 52°F | Hi 57°F Lo 37°F | Hi 46°F Lo 28°F | Hi 34°F Lo 19°F |
| 10 mph | 9 mph | 9 mph | 9 mph | 9 mph | 8 mph | 8 mph | 8 mph | 8 mph | 9 mph | 9 mph | 9 mph |
| 0.9 in | 1 in | 2.2 in | 3.9 in | 4.7 in | 3.7 in | 3 in | 2.8 in | 2.5 in | 2.9 in | 0.9 in | 1.3 in |
| 76% | 75% | 70% | 67% | 64% | 58% | 49% | 48% | 47% | 59% | 61% | 73% |
| 41% | 42% | 41% | 43% | 38% | 27% | 22% | 21% | 19% | 30% | 31% | 39% |
| 30.1 in | 30.1 in | 30.0 in | 29.9 in | 29.9 in | 29.8 in | 29.9 in | 29.9 in | 29.9 in | 29.9 in | 30.0 in | 30.1 in |
| 20 | 17 | 20 | 17 | 19 | 20 | 21 | 22 | 25 | 23 | 24 | 21 |
| 7 | 7 | 6 | 9 | 11 | 10 | 10 | 9 | 5 | 6 | 4 | 6 |
| 4 | 4 | 5 | 5 | 1 | 0 | 0 | 0 | 0 | 2 | 2 | 4 |
| 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1 | 2 | 2 | 2 | 4 | 5 | 6 | 5 | 4 | 2 | 2 | 1 |
| 186 | 161 | 196 | 179 | 190 | 235 | 263 | 289 | 286 | 237 | 236 | 202 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 1°C Lo -8°C | Hi 1°C Lo -9°C | Hi 8°C Lo -3°C | Hi 11°C Lo 0°C | Hi 18°C Lo 6°C | Hi 25°C Lo 12°C | Hi 30°C Lo 16°C | Hi 29°C Lo 15°C | Hi 24°C Lo 11°C | Hi 14°C Lo 3°C | Hi 8°C Lo -2°C | Hi 1°C Lo -8°C |
| 15 km/h | 14 km/h | 14 km/h | 15 km/h | 14 km/h | 13 km/h | 12 km/h | 12 km/h | 13 km/h | 15 km/h | 15 km/h | 15 km/h |
| 22 mm | 26 mm | 56 mm | 98 mm | 120 mm | 93 mm | 77 mm | 71 mm | 63 mm | 73 mm | 22 mm | 33 mm |
| 76% | 75% | 70% | 67% | 64% | 58% | 49% | 48% | 47% | 59% | 61% | 73% |
| 41% | 42% | 41% | 43% | 38% | 27% | 22% | 21% | 19% | 30% | 31% | 39% |
| 1021 mb | 1020 mb | 1016 mb | 1013 mb | 1012 mb | 1011 mb | 1012 mb | 1012 mb | 1012 mb | 1011 mb | 1017 mb | 1019 mb |
| 20 | 17 | 20 | 17 | 19 | 20 | 21 | 22 | 25 | 23 | 24 | 21 |
| 7 | 7 | 6 | 9 | 11 | 10 | 10 | 9 | 5 | 6 | 4 | 6 |
| 4 | 4 | 5 | 5 | 1 | 0 | 0 | 0 | 0 | 2 | 2 | 4 |
| 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1 | 2 | 2 | 2 | 4 | 5 | 6 | 5 | 4 | 2 | 2 | 1 |
| 186 | 161 | 196 | 179 | 190 | 235 | 263 | 289 | 286 | 237 | 236 | 202 |
| Month |
| Avg. Temperatures |
| Avg. Wind Speed |
| Avg. Precipitation |
| Average Humidity |
| Avg. Cloud Cover |
| Pressure Average |
| Average Dry Days |
| Avg. Precip. Days |
| Avg. Snow Days |
| Average Fog Days |
| Average UV Index |
| Avg. Hours of Sun |
Averages are based on historical weather data from the past 10 years.