May weather in Wilmington, IL
The average temperature in Wilmington in May is 61.3°F (50.7°F–71.9°F). Average precipitation: 4.61 inches.
May is a spring month in Wilmington, and is warmer than the annual average of 51.1°F. Daily temperatures swing about 21.2°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 14h 19m. For travel, May is a comfortable month to visit.
Avg High
71.9°F
Avg Low
50.7°F
Precipitation
4.61 in
Daylight
14h 19m
May records in Wilmington
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 86.0°F (2001) | 30.0°F (1979) | 1.65 in (1973) |
| May 2 | 87.1°F (2007) | 30.0°F (1979) | 1.47 in (1983) |
| May 3 | 82.0°F (2001) | 30.9°F (2005) | 1.10 in (1979) |
| May 4 | 87.1°F (2001) | 30.9°F (2005) | 0.96 in (1946) |
| May 5 | 82.9°F (2012) | 33.1°F (2005) | 1.98 in (1965) |
| May 6 | 84.0°F (2000) | 37.9°F (2011) | 2.36 in (1976) |
| May 7 | 88.0°F (2004) | 32.0°F (2004) | 2.05 in (1998) |
| May 8 | 84.9°F (2007) | 39.9°F (1997) | 1.33 in (1962) |
| May 9 | 89.1°F (1979) | 37.0°F (2010) | 1.25 in (1995) |
| May 10 | 90.0°F (1979) | 37.0°F (2002) | 2.62 in (1990) |
| May 11 | 90.0°F (1979) | 37.9°F (2002) | 1.73 in (1951) |
| May 12 | 90.0°F (2011) | 39.9°F (2009) | 2.50 in (2002) |
| May 13 | 89.1°F (2011) | 37.0°F (2001) | 1.89 in (1970) |
| May 14 | 81.0°F (2004) | 36.0°F (2000) | 1.97 in (1983) |
| May 15 | 91.9°F (2007) | 37.0°F (2000) | 1.05 in (1945) |
| May 16 | 84.9°F (1998) | 32.0°F (1997) | 1.89 in (2009) |
| May 17 | 84.0°F (1999) | 33.1°F (1997) | 1.71 in (1974) |
| May 18 | 89.1°F (1998) | 33.1°F (2002) | 1.41 in (1974) |
| May 19 | 91.0°F (1998) | 33.1°F (2002) | 2.37 in (1997) |
| May 20 | 91.9°F (1998) | 41.0°F (1997) | 2.70 in (1949) |
| May 21 | 91.9°F (2012) | 30.9°F (2002) | 1.10 in (1996) |
| May 22 | 89.1°F (2007) | 35.1°F (2002) | 1.63 in (1974) |
| May 23 | 90.0°F (2007) | 37.9°F (1997) | 0.77 in (1993) |
| May 24 | 91.0°F (2007) | 42.1°F (1979) | 1.69 in (1995) |
| May 25 | 91.9°F (2010) | 39.0°F (1979) | 0.86 in (1989) |
| May 26 | 89.1°F (2010) | 37.0°F (1979) | 2.28 in (2011) |
| May 27 | 91.0°F (2012) | 39.9°F (2002) | 1.88 in (2001) |
| May 28 | 97.0°F (2012) | 44.1°F (2008) | 1.09 in (1973) |
| May 29 | 95.0°F (2006) | 41.0°F (2008) | 1.55 in (2011) |
| May 30 | 93.0°F (2006) | 41.0°F (2008) | 2.08 in (1969) |
| May 31 | 91.0°F (2006) | 45.0°F (2003) | 2.10 in (2004) |