Delmont, SD
Climate overview — based on NOAA 1991-2020 normals from ARMOUR, SD US.
Year-round temperatures (°F)
Climate summary
Delmont has an annual average temperature of 48.9°F with about 25.4 inches of precipitation per year and 34.4 inches of snow. The warmest month is July (average high 88.0°F), and the coldest is January (average low 10.0°F). May is typically the wettest month (4.03 in) and January the driest (0.55 in). Snow typically falls from October through April.
Best time to visit Delmont
Full guide →Climate change signal
All-time records →0 of 366 (0%) of Delmont'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.
| 1890s | 3 | |
| 1900s | 39 | |
| 1910s | 23 | |
| 1920s | 26 | |
| 1930s | 111 | |
| 1940s | 33 | |
| 1950s | 30 | |
| 1960s | 21 | |
| 1970s | 7 | |
| 1980s | 31 | |
| 1990s | 24 | |
| 2000s | 18 |
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 | 31.8°F | 10.0°F | 20.9°F | 0.55 in | 6.1 in | 4 |
| February | 37.1°F | 14.3°F | 25.7°F | 0.86 in | 5.5 in | 5 |
| March | 49.6°F | 24.3°F | 36.9°F | 1.24 in | 6.3 in | 5 |
| April | 62.3°F | 35.2°F | 48.8°F | 3.26 in | 4.1 in | 9 |
| May | 72.8°F | 46.4°F | 59.6°F | 4.03 in | — | 10 |
| June | 82.4°F | 57.7°F | 70.1°F | 3.74 in | — | 10 |
| July | 88.0°F | 62.1°F | 75.0°F | 2.67 in | — | 9 |
| August | 86.3°F | 60.2°F | 73.3°F | 2.84 in | — | 7 |
| September | 79.2°F | 51.5°F | 65.3°F | 2.42 in | — | 6 |
| October | 64.3°F | 37.8°F | 51.0°F | 2.07 in | 1.2 in | 6 |
| November | 47.7°F | 24.5°F | 36.1°F | 1.02 in | 6.1 in | 4 |
| December | 34.6°F | 14.4°F | 24.5°F | 0.72 in | 5.1 in | 3 |
Climate twins of Delmont
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).