May weather in Hillsdale, IL
The average temperature in Hillsdale in May is 62.6°F (51.6°F–73.7°F). Average precipitation: 4.87 inches.
May is a spring month in Hillsdale, and is warmer than the annual average of 50.9°F. Daily temperatures swing about 22.1°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 14h 21m. For travel, May is a comfortable month to visit.
Avg High
73.7°F
Avg Low
51.6°F
Precipitation
4.87 in
Daylight
14h 21m
May records in Hillsdale
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 88.0°F (1992) | 28.9°F (1909) | 1.97 in (1973) |
| May 2 | 90.0°F (1968) | 28.9°F (1909) | 1.33 in (2019) |
| May 3 | 89.1°F (1969) | 27.0°F (2005) | 1.82 in (1935) |
| May 4 | 88.0°F (1959) | 27.0°F (1907) | 1.89 in (1990) |
| May 5 | 89.1°F (1943) | 30.9°F (1944) | 1.01 in (1933) |
| May 6 | 87.1°F (1959) | 32.0°F (1989) | 2.00 in (1904) |
| May 7 | 89.1°F (2023) | 28.9°F (1989) | 1.86 in (1945) |
| May 8 | 91.0°F (1979) | 34.0°F (1956) | 2.10 in (1995) |
| May 9 | 91.0°F (1963) | 28.0°F (2020) | 2.64 in (1996) |
| May 10 | 93.9°F (2011) | 26.1°F (1966) | 3.82 in (1951) |
| May 11 | 95.0°F (2022) | 28.9°F (1907) | 3.03 in (2002) |
| May 12 | 93.0°F (2022) | 33.1°F (1960) | 1.46 in (2014) |
| May 13 | 95.0°F (2022) | 36.0°F (1971) | 4.62 in (2010) |
| May 14 | 95.0°F (2013) | 32.0°F (1895) | 1.59 in (1985) |
| May 15 | 93.9°F (2025) | 35.1°F (1997) | 1.75 in (1899) |
| May 16 | 91.0°F (1977) | 34.0°F (1907) | 3.93 in (1974) |
| May 17 | 91.9°F (1996) | 30.0°F (1973) | 2.85 in (1986) |
| May 18 | 91.9°F (1996) | 34.0°F (2002) | 1.47 in (1987) |
| May 19 | 93.0°F (1975) | 37.9°F (2002) | 1.73 in (1959) |
| May 20 | 91.9°F (1975) | 35.1°F (1907) | 2.09 in (1987) |
| May 21 | 91.0°F (1972) | 33.1°F (2002) | 1.10 in (1903) |
| May 22 | 93.0°F (1972) | 36.0°F (1963) | 2.06 in (1984) |
| May 23 | 93.0°F (1975) | 33.1°F (1963) | 2.98 in (1995) |
| May 24 | 93.9°F (2010) | 37.9°F (1992) | 1.57 in (1927) |
| May 25 | 93.9°F (1967) | 36.0°F (1992) | 1.91 in (2011) |
| May 26 | 95.0°F (1985) | 37.9°F (1961) | 3.16 in (2013) |
| May 27 | 99.0°F (2018) | 34.0°F (1907) | 1.85 in (1898) |
| May 28 | 97.0°F (2018) | 36.0°F (1971) | 2.15 in (1903) |
| May 29 | 91.9°F (2006) | 35.1°F (1965) | 1.62 in (1962) |
| May 30 | 91.0°F (1989) | 39.9°F (2021) | 1.74 in (2004) |
| May 31 | 91.9°F (1988) | 39.0°F (1897) | 1.66 in (1958) |