May weather in Morrison, IL
The average temperature in Morrison in May is 59.8°F (48.8°F–70.8°F). Average precipitation: 4.73 inches.
May is a spring month in Morrison, and is warmer than the annual average of 48.3°F. Daily temperatures swing about 22°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
70.8°F
Avg Low
48.8°F
Precipitation
4.73 in
Daylight
14h 22m
May records in Morrison
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 91.9°F (1952) | 26.1°F (1918) | 1.08 in (2019) |
| May 2 | 91.9°F (1959) | 28.0°F (1911) | 2.05 in (1973) |
| May 3 | 90.0°F (1928) | 23.0°F (2005) | 2.56 in (1919) |
| May 4 | 91.0°F (1952) | 25.0°F (2005) | 1.87 in (2003) |
| May 5 | 93.9°F (1949) | 28.9°F (1910) | 1.53 in (1913) |
| May 6 | 93.0°F (1934) | 27.0°F (1954) | 1.40 in (1941) |
| May 7 | 89.1°F (1896) | 27.0°F (1989) | 1.39 in (1904) |
| May 8 | 89.1°F (1896) | 30.0°F (2021) | 2.00 in (1995) |
| May 9 | 97.0°F (1934) | 26.1°F (2020) | 1.10 in (2021) |
| May 10 | 93.0°F (1896) | 27.0°F (1966) | 3.14 in (1951) |
| May 11 | 91.9°F (1896) | 27.0°F (1907) | 3.52 in (1914) |
| May 12 | 95.0°F (2022) | 30.9°F (2021) | 1.68 in (2002) |
| May 13 | 93.0°F (2022) | 30.0°F (2013) | 1.96 in (1999) |
| May 14 | 93.0°F (2022) | 28.0°F (1895) | 1.72 in (1945) |
| May 15 | 91.9°F (1944) | 35.1°F (1921) | 1.68 in (2020) |
| May 16 | 93.0°F (2025) | 30.0°F (1997) | 1.55 in (1968) |
| May 17 | 91.9°F (1934) | 34.0°F (1930) | 4.20 in (1974) |
| May 18 | 93.9°F (1934) | 30.0°F (2002) | 1.52 in (1986) |
| May 19 | 95.0°F (1934) | 32.0°F (1929) | 1.53 in (1931) |
| May 20 | 95.0°F (1934) | 32.0°F (1954) | 2.05 in (1974) |
| May 21 | 95.0°F (1921) | 30.0°F (2002) | 1.56 in (1996) |
| May 22 | 95.0°F (1925) | 35.1°F (1963) | 1.20 in (1953) |
| May 23 | 93.9°F (1921) | 30.9°F (1917) | 2.48 in (1907) |
| May 24 | 93.9°F (1921) | 35.1°F (2013) | 1.60 in (1966) |
| May 25 | 93.0°F (1926) | 30.0°F (1925) | 2.15 in (1922) |
| May 26 | 93.0°F (1967) | 30.9°F (1897) | 1.96 in (1933) |
| May 27 | 93.9°F (1985) | 32.0°F (1992) | 2.16 in (1986) |
| May 28 | 98.1°F (2018) | 36.0°F (1907) | 2.56 in (1935) |
| May 29 | 99.0°F (1934) | 30.0°F (1965) | 1.55 in (1915) |
| May 30 | 98.1°F (1934) | 35.1°F (2021) | 3.00 in (1970) |
| May 31 | 105.1°F (1934) | 28.9°F (1897) | 1.08 in (1903) |