Custer, SD
Climate overview — based on NOAA 1991-2020 normals from CUSTER, SD US.
Year-round temperatures (°F)
Climate summary
Custer has an annual average temperature of 44.9°F with about 20.7 inches of precipitation per year and 57.9 inches of snow. The warmest month is July (average high 79.7°F), and the coldest is February (average low 16.1°F). May is typically the wettest month (3.53 in) and January the driest (0.36 in). Snow typically falls from September through May.
Best time to visit Custer
Full guide →Climate change signal
All-time records →31 of 366 (8.5%) of Custer'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 | 0 | |
| 1920s | 0 | |
| 1930s | 0 | |
| 1940s | 23 | |
| 1950s | 58 | |
| 1960s | 69 | |
| 1970s | 41 | |
| 1980s | 45 | |
| 1990s | 47 | |
| 2000s | 39 | |
| 2010s | 27 | |
| 2020s | 17 |
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 | 37.1°F | 16.2°F | 26.6°F | 0.36 in | 6.6 in | 4 |
| February | 37.2°F | 16.1°F | 26.6°F | 0.70 in | 10.7 in | 6 |
| March | 45.6°F | 24.0°F | 34.8°F | 0.92 in | 10.7 in | 6 |
| April | 51.3°F | 30.5°F | 40.9°F | 2.24 in | 11.0 in | 10 |
| May | 61.2°F | 40.5°F | 50.8°F | 3.53 in | 2.1 in | 14 |
| June | 72.3°F | 49.6°F | 61.0°F | 3.43 in | — | 13 |
| July | 79.7°F | 56.3°F | 68.0°F | 3.16 in | — | 11 |
| August | 78.7°F | 54.6°F | 66.7°F | 2.43 in | — | 9 |
| September | 70.9°F | 46.0°F | 58.5°F | 1.53 in | 0.8 in | 7 |
| October | 55.7°F | 33.7°F | 44.7°F | 1.45 in | 3.9 in | 6 |
| November | 44.9°F | 23.7°F | 34.3°F | 0.55 in | 6.7 in | 4 |
| December | 36.5°F | 16.6°F | 26.5°F | 0.36 in | 5.4 in | 4 |
Climate twins of Custer
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).