Oacoma, SD
Climate overview — based on NOAA 1991-2020 normals from CHAMBERLAIN MUNI AP, SD US.
Year-round temperatures (°F)
Climate summary
Oacoma has an annual average temperature of 48.2°F with about 20.4 inches of precipitation per year. The warmest month is July (average high 87.7°F), and the coldest is January (average low 11.1°F). June is typically the wettest month (3.57 in) and January the driest (0.40 in).
Best time to visit Oacoma
Full guide →Climate change signal
All-time records →85 of 366 (23.2%) of Oacoma'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.
| 1990s | 32 | |
| 2000s | 173 | |
| 2010s | 76 | |
| 2020s | 85 |
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 | 30.6°F | 11.1°F | 20.8°F | 0.40 in | — | 7 |
| February | 35.3°F | 14.2°F | 24.8°F | 0.58 in | — | 6 |
| March | 46.9°F | 24.7°F | 35.8°F | 1.12 in | — | 8 |
| April | 59.1°F | 35.1°F | 47.1°F | 2.32 in | — | 10 |
| May | 69.9°F | 46.7°F | 58.3°F | 3.19 in | — | 12 |
| June | 80.6°F | 57.6°F | 69.1°F | 3.57 in | — | 12 |
| July | 87.7°F | 62.8°F | 75.3°F | 2.18 in | — | 9 |
| August | 85.7°F | 61.2°F | 73.5°F | 2.28 in | — | 8 |
| September | 77.4°F | 51.2°F | 64.3°F | 2.13 in | — | 8 |
| October | 61.7°F | 37.5°F | 49.6°F | 1.57 in | — | 9 |
| November | 46.3°F | 24.7°F | 35.5°F | 0.51 in | — | 5 |
| December | 33.6°F | 15.0°F | 24.3°F | 0.52 in | — | 6 |
Climate twins of Oacoma
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).