May weather in Groton, SD
The average temperature in Groton in May is °F (°F–°F). Average precipitation: 3.36 inches.
May is a spring month in Groton, and is cooler than the annual average of 0°F. Expect about 8 days with precipitation. Daylight averages about 14h 42m.
Avg High
°F
Avg Low
°F
Precipitation
3.36 in
Daylight
14h 42m
May records in Groton
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | — | — | 0.07 in (2004) |
| May 2 | — | — | 0.05 in (2010) |
| May 3 | — | — | 0.56 in (2003) |
| May 4 | — | — | 1.14 in (2007) |
| May 5 | — | — | 0.86 in (2007) |
| May 6 | — | — | 8.74 in (2007) |
| May 7 | — | — | 0.55 in (2015) |
| May 8 | — | — | 0.59 in (2006) |
| May 9 | — | — | 1.50 in (2003) |
| May 10 | — | — | 0.31 in (2005) |
| May 11 | — | — | 1.81 in (2015) |
| May 12 | — | — | 1.03 in (2004) |
| May 13 | — | — | 0.85 in (2011) |
| May 14 | — | — | 0.15 in (2005) |
| May 15 | — | — | 0.63 in (2018) |
| May 16 | — | — | 0.68 in (2004) |
| May 17 | — | — | 0.20 in (2004) |
| May 18 | — | — | 0.70 in (2015) |
| May 19 | — | — | 0.30 in (2013) |
| May 20 | — | — | 0.15 in (2011) |
| May 21 | — | — | 1.02 in (2013) |
| May 22 | — | — | 0.22 in (2011) |
| May 23 | — | — | 2.02 in (2007) |
| May 24 | — | — | 1.04 in (2004) |
| May 25 | — | — | 0.76 in (2015) |
| May 26 | — | — | 0.62 in (2005) |
| May 27 | — | — | 0.05 in (2013) |
| May 28 | — | — | 0.89 in (2011) |
| May 29 | — | — | 0.38 in (2013) |
| May 30 | — | — | 1.59 in (2004) |
| May 31 | — | — | 1.12 in (2007) |