Vermillion, SD
Climate overview — based on NOAA 1991-2020 normals from VERMILLION 2 SE, SD US.
Year-round temperatures (°F)
Climate summary
Vermillion has an annual average temperature of 48.8°F with about 28 inches of precipitation per year. The warmest month is July (average high 85.5°F), and the coldest is January (average low 10.2°F). June is typically the wettest month (4.30 in) and January the driest (0.53 in).
Best time to visit Vermillion
Full guide →Climate change signal
All-time records →32 of 366 (8.7%) of Vermillion'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 | 18 | |
| 1900s | 15 | |
| 1910s | 15 | |
| 1920s | 24 | |
| 1930s | 79 | |
| 1940s | 22 | |
| 1950s | 21 | |
| 1960s | 20 | |
| 1970s | 14 | |
| 1980s | 42 | |
| 1990s | 24 | |
| 2000s | 20 | |
| 2010s | 27 | |
| 2020s | 25 |
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 | 30.5°F | 10.2°F | 20.4°F | 0.53 in | — | 4 |
| February | 36.1°F | 14.0°F | 25.0°F | 0.70 in | — | 4 |
| March | 48.4°F | 25.2°F | 36.8°F | 1.42 in | — | 5 |
| April | 61.9°F | 36.0°F | 48.9°F | 3.09 in | — | 8 |
| May | 72.7°F | 48.1°F | 60.4°F | 3.96 in | — | 10 |
| June | 82.2°F | 59.1°F | 70.7°F | 4.30 in | — | 9 |
| July | 85.5°F | 63.2°F | 74.4°F | 3.61 in | — | 7 |
| August | 83.3°F | 60.7°F | 72.0°F | 2.88 in | — | 7 |
| September | 78.1°F | 51.8°F | 64.9°F | 3.07 in | — | 6 |
| October | 64.6°F | 38.5°F | 51.6°F | 2.35 in | — | 7 |
| November | 48.2°F | 25.2°F | 36.7°F | 1.30 in | — | 4 |
| December | 34.0°F | 14.6°F | 24.3°F | 0.79 in | — | 5 |
Climate twins of Vermillion
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).