May weather in Fulton, IL
The average temperature in Fulton in May is 61.2°F (51.4°F–71.1°F). Average precipitation: 4.03 inches.
May is a spring month in Fulton, and is warmer than the annual average of 49.9°F. Daily temperatures swing about 19.7°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 14h 22m. For travel, May is a comfortable month to visit.
Avg High
71.1°F
Avg Low
51.4°F
Precipitation
4.03 in
Daylight
14h 22m
May records in Fulton
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 84.0°F (1951) | 32.0°F (1978) | 1.05 in (2006) |
| May 2 | 91.9°F (1938) | 30.9°F (1970) | 0.96 in (1973) |
| May 3 | 88.0°F (1938) | 30.0°F (2005) | 0.93 in (2022) |
| May 4 | 89.1°F (1959) | 30.9°F (2005) | 2.00 in (2001) |
| May 5 | 89.1°F (1949) | 30.9°F (2005) | 1.82 in (2015) |
| May 6 | 87.1°F (1980) | 30.0°F (1944) | 1.23 in (1948) |
| May 7 | 84.9°F (1965) | 30.9°F (1989) | 1.25 in (1960) |
| May 8 | 88.0°F (1963) | 35.1°F (1960) | 1.80 in (1997) |
| May 9 | 89.1°F (1963) | 30.0°F (1966) | 1.13 in (1995) |
| May 10 | 86.0°F (1979) | 32.0°F (1966) | 2.33 in (1996) |
| May 11 | 91.0°F (2011) | 32.0°F (1966) | 1.56 in (1951) |
| May 12 | 95.0°F (2022) | 34.0°F (1971) | 2.04 in (1966) |
| May 13 | 93.9°F (2022) | 37.0°F (1946) | 2.55 in (1999) |
| May 14 | 93.0°F (2022) | 37.0°F (2000) | 1.46 in (1945) |
| May 15 | 90.0°F (2013) | 37.0°F (2000) | 1.00 in (2020) |
| May 16 | 93.0°F (2025) | 36.0°F (1961) | 1.18 in (1941) |
| May 17 | 88.0°F (1971) | 37.9°F (2005) | 3.80 in (1974) |
| May 18 | 90.0°F (1962) | 34.0°F (1952) | 2.00 in (1969) |
| May 19 | 90.0°F (1996) | 34.0°F (2000) | 1.17 in (2021) |
| May 20 | 89.1°F (1975) | 36.0°F (2014) | 0.96 in (2025) |
| May 21 | 90.0°F (1939) | 37.0°F (2002) | 1.46 in (1996) |
| May 22 | 90.0°F (1962) | 37.0°F (2002) | 1.07 in (1953) |
| May 23 | 89.1°F (1972) | 37.9°F (1963) | 1.18 in (1952) |
| May 24 | 91.9°F (1975) | 39.9°F (1992) | 1.30 in (1944) |
| May 25 | 91.9°F (1967) | 39.0°F (1992) | 1.96 in (1984) |
| May 26 | 90.0°F (1967) | 36.0°F (1961) | 1.45 in (2008) |
| May 27 | 91.9°F (1978) | 37.9°F (2001) | 1.42 in (1944) |
| May 28 | 96.1°F (2018) | 41.0°F (1992) | 1.54 in (1954) |
| May 29 | 93.0°F (2018) | 37.0°F (1947) | 1.62 in (1996) |
| May 30 | 90.0°F (1953) | 43.0°F (1984) | 1.22 in (2019) |
| May 31 | 91.0°F (1988) | 39.9°F (2001) | 2.40 in (2000) |