Bison, SD
Climate overview — based on NOAA 1991-2020 normals from BISON, SD US.
Year-round temperatures (°F)
Climate summary
Bison has an annual average temperature of 45.7°F with about 18.1 inches of precipitation per year and 39.7 inches of snow. The warmest month is July (average high 86.2°F), and the coldest is January (average low 9.7°F). June is typically the wettest month (3.15 in) and December the driest (0.44 in). Snow typically falls from October through May.
Best time to visit Bison
Full guide →Climate change signal
All-time records →40 of 366 (10.9%) of Bison's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 1910s | 3 | |
| 1920s | 5 | |
| 1930s | 72 | |
| 1940s | 31 | |
| 1950s | 33 | |
| 1960s | 25 | |
| 1970s | 25 | |
| 1980s | 31 | |
| 1990s | 34 | |
| 2000s | 47 | |
| 2010s | 39 | |
| 2020s | 21 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 29.6°F | 9.7°F | 19.7°F | 0.46 in | 5.6 in | 3 |
| February | 32.8°F | 12.4°F | 22.6°F | 0.56 in | 8.0 in | 4 |
| March | 45.1°F | 21.8°F | 33.4°F | 0.87 in | 7.0 in | 4 |
| April | 57.4°F | 31.5°F | 44.4°F | 1.76 in | 5.4 in | 6 |
| May | 68.2°F | 42.7°F | 55.4°F | 3.11 in | 0.7 in | 7 |
| June | 77.9°F | 52.4°F | 65.2°F | 3.15 in | — | 8 |
| July | 86.2°F | 58.6°F | 72.4°F | 2.50 in | — | 7 |
| August | 85.6°F | 57.0°F | 71.3°F | 1.83 in | — | 5 |
| September | 76.4°F | 47.5°F | 61.9°F | 1.38 in | — | 4 |
| October | 59.7°F | 34.7°F | 47.2°F | 1.52 in | 3.0 in | 4 |
| November | 43.4°F | 22.5°F | 33.0°F | 0.52 in | 4.1 in | 3 |
| December | 31.9°F | 12.9°F | 22.4°F | 0.44 in | 5.9 in | 3 |
Climate twins of Bison
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).