Groton, SD
Climate overview — based on NOAA 1991-2020 normals from GROTON, SD US.
Year-round temperatures (°F)
Avg high
Avg low
Best time to visit Groton
Full guide →Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | °F | °F | °F | 0.54 in | 4.7 in | 5 |
| February | °F | °F | °F | 0.65 in | 5.8 in | 5 |
| March | °F | °F | °F | 1.05 in | 6.7 in | 5 |
| April | °F | °F | °F | 2.22 in | 4.5 in | 6 |
| May | °F | °F | °F | 3.36 in | — | 8 |
| June | °F | °F | °F | 3.80 in | — | 9 |
| July | °F | °F | °F | 3.38 in | — | 6 |
| August | °F | °F | °F | 1.99 in | — | 6 |
| September | °F | °F | °F | 2.38 in | — | 7 |
| October | °F | °F | °F | 1.88 in | 0.5 in | 5 |
| November | °F | °F | °F | 0.79 in | 2.0 in | 4 |
| December | °F | °F | °F | 0.61 in | 8.1 in | 6 |
Last spring / first fall frost
All-time recordsHottest, coldest, wettest
Planting calendarWhat to plant, and when