May weather in St. Peter, IL
The average temperature in St. Peter in May is °F (°F–°F). Average precipitation: 5.05 inches.
May is a spring month in St. Peter, and is cooler than the annual average of 0°F. Expect about 10 days with precipitation. Daylight averages about 14h 7m.
Avg High
°F
Avg Low
°F
Precipitation
5.05 in
Daylight
14h 7m
May records in St. Peter
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | — | — | 1.20 in (1983) |
| May 2 | — | — | 1.51 in (1985) |
| May 3 | — | — | 0.95 in (2013) |
| May 4 | — | — | 1.10 in (1987) |
| May 5 | — | — | 2.33 in (2012) |
| May 6 | — | — | 0.77 in (2002) |
| May 7 | — | — | 1.59 in (2002) |
| May 8 | — | — | 1.00 in (2002) |
| May 9 | — | — | 1.29 in (1995) |
| May 10 | — | — | 0.59 in (1981) |
| May 11 | — | — | 1.08 in (1981) |
| May 12 | — | — | 0.55 in (1986) |
| May 13 | — | — | 2.74 in (2002) |
| May 14 | — | — | 0.95 in (1983) |
| May 15 | — | — | 0.51 in (1996) |
| May 16 | — | — | 0.49 in (2007) |
| May 17 | — | — | 2.32 in (1995) |
| May 18 | — | — | 3.01 in (1995) |
| May 19 | — | — | 1.46 in (1995) |
| May 20 | — | — | 1.30 in (2003) |
| May 21 | — | — | 1.43 in (1984) |
| May 22 | — | — | 0.66 in (1998) |
| May 23 | — | — | 1.95 in (1998) |
| May 24 | — | — | 0.83 in (1993) |
| May 25 | — | — | 1.49 in (1995) |
| May 26 | — | — | 1.95 in (1996) |
| May 27 | — | — | 1.92 in (2000) |
| May 28 | — | — | 1.25 in (1995) |
| May 29 | — | — | 0.91 in (1986) |
| May 30 | — | — | 0.45 in (1987) |
| May 31 | — | — | 1.20 in (1982) |