May weather in Posen, IL
The average temperature in Posen in May is 61.9°F (52.4°F–71.5°F). Average precipitation: 4.75 inches.
May is a spring month in Posen, and is warmer than the annual average of 52.4°F. Daily temperatures swing about 19.1°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
71.5°F
Avg Low
52.4°F
Precipitation
4.75 in
Daylight
14h 21m
May records in Posen
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 90.0°F (1951) | 30.0°F (1943) | 2.05 in (1940) |
| May 2 | 91.0°F (1959) | 30.0°F (1978) | 1.26 in (1979) |
| May 3 | 91.9°F (1955) | 32.0°F (1971) | 1.17 in (2022) |
| May 4 | 91.9°F (1952) | 30.9°F (1940) | 1.62 in (1990) |
| May 5 | 93.9°F (1949) | 34.0°F (1929) | 0.83 in (1991) |
| May 6 | 93.0°F (1934) | 34.0°F (1978) | 1.71 in (1941) |
| May 7 | 89.1°F (1936) | 32.0°F (1974) | 2.01 in (1998) |
| May 8 | 93.0°F (2014) | 33.1°F (1947) | 1.09 in (1939) |
| May 9 | 96.1°F (1934) | 30.9°F (1947) | 2.33 in (1990) |
| May 10 | 91.9°F (2022) | 28.9°F (1966) | 2.84 in (1951) |
| May 11 | 91.0°F (2022) | 32.0°F (1981) | 3.30 in (1966) |
| May 12 | 95.0°F (2022) | 28.0°F (1981) | 1.92 in (1935) |
| May 13 | 93.0°F (2022) | 30.0°F (1938) | 1.46 in (1983) |
| May 14 | 91.9°F (1982) | 37.0°F (1936) | 2.36 in (2020) |
| May 15 | 95.0°F (2025) | 30.9°F (1980) | 0.85 in (1943) |
| May 16 | 93.9°F (1962) | 35.1°F (1940) | 1.38 in (1974) |
| May 17 | 93.9°F (1962) | 36.0°F (1929) | 3.95 in (2020) |
| May 18 | 93.0°F (1934) | 34.0°F (2002) | 0.79 in (1986) |
| May 19 | 95.0°F (1934) | 37.0°F (1929) | 1.54 in (1931) |
| May 20 | 95.0°F (1977) | 36.0°F (1981) | 2.54 in (1975) |
| May 21 | 93.9°F (1934) | 34.0°F (2002) | 1.79 in (1982) |
| May 22 | 93.0°F (1977) | 39.9°F (1929) | 1.11 in (1955) |
| May 23 | 91.9°F (1964) | 35.1°F (1931) | 1.41 in (1995) |
| May 24 | 93.0°F (1950) | 36.0°F (1935) | 1.31 in (1955) |
| May 25 | 90.0°F (1939) | 35.1°F (1934) | 2.65 in (1991) |
| May 26 | 93.0°F (1967) | 34.0°F (1934) | 1.49 in (2001) |
| May 27 | 97.0°F (2012) | 35.1°F (1961) | 2.56 in (2019) |
| May 28 | 96.1°F (2018) | 39.9°F (1930) | 2.80 in (1980) |
| May 29 | 95.0°F (1942) | 36.0°F (1930) | 0.83 in (1989) |
| May 30 | 95.0°F (1942) | 36.0°F (1930) | 1.60 in (2004) |
| May 31 | 102.0°F (1934) | 41.0°F (1928) | 2.97 in (2010) |