Yankton, SD
Climate overview — based on NOAA 1991-2020 normals from YANKTON 2 E, SD US.
Year-round temperatures (°F)
Climate summary
Yankton has an annual average temperature of 48.7°F with about 28.7 inches of precipitation per year and 38.1 inches of snow. The warmest month is July (average high 87.1°F), and the coldest is January (average low 10.4°F). June is typically the wettest month (4.03 in) and January the driest (0.65 in). Snow typically falls from October through May.
Best time to visit Yankton
Full guide →Climate change signal
All-time records →37 of 366 (10.1%) of Yankton'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.
| 1930s | 83 | |
| 1940s | 34 | |
| 1950s | 41 | |
| 1960s | 21 | |
| 1970s | 15 | |
| 1980s | 51 | |
| 1990s | 32 | |
| 2000s | 31 | |
| 2010s | 35 | |
| 2020s | 23 |
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 | 30.0°F | 10.4°F | 20.2°F | 0.65 in | 6.7 in | 5 |
| February | 34.9°F | 14.2°F | 24.6°F | 0.91 in | 8.5 in | 5 |
| March | 47.1°F | 24.6°F | 35.9°F | 1.60 in | 4.7 in | 6 |
| April | 60.0°F | 35.4°F | 47.7°F | 3.36 in | 3.7 in | 9 |
| May | 71.9°F | 47.7°F | 59.8°F | 3.68 in | 0.2 in | 12 |
| June | 82.4°F | 58.9°F | 70.7°F | 4.03 in | — | 11 |
| July | 87.1°F | 63.8°F | 75.4°F | 3.46 in | — | 8 |
| August | 84.8°F | 61.5°F | 73.1°F | 3.26 in | — | 9 |
| September | 77.5°F | 52.1°F | 64.8°F | 2.85 in | — | 7 |
| October | 63.3°F | 38.5°F | 50.9°F | 2.56 in | 0.8 in | 7 |
| November | 47.2°F | 25.3°F | 36.2°F | 1.27 in | 5.9 in | 5 |
| December | 34.0°F | 14.9°F | 24.5°F | 1.03 in | 7.6 in | 5 |
Climate twins of Yankton
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).