April weather in Fairfield, IL
The average temperature in Fairfield in April is 57.7°F (46.5°F–69.0°F). Average precipitation: 5.00 inches.
April is a spring month in Fairfield, and is warmer than the annual average of 57.1°F. Daily temperatures swing about 22.5°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 13h 0m. For travel, April is a wet month.
Avg High
69.0°F
Avg Low
46.5°F
Precipitation
5.00 in
Daylight
13h 0m
April records in Fairfield
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| April 1 | 88.0°F (2012) | 21.9°F (1923) | 1.98 in (1917) |
| April 2 | 89.1°F (2012) | 19.9°F (1924) | 1.18 in (2024) |
| April 3 | 87.1°F (1946) | 21.9°F (1987) | 3.41 in (1999) |
| April 4 | 87.1°F (1934) | 21.9°F (1900) | 2.15 in (1950) |
| April 5 | 84.9°F (1934) | 23.0°F (1944) | 4.42 in (2025) |
| April 6 | 84.0°F (1915) | 24.1°F (1982) | 1.82 in (1954) |
| April 7 | 84.0°F (1922) | 17.1°F (1990) | 1.23 in (2000) |
| April 8 | 89.1°F (1943) | 21.9°F (1972) | 1.44 in (1974) |
| April 9 | 88.0°F (1943) | 21.9°F (2007) | 1.57 in (1929) |
| April 10 | 89.1°F (1930) | 23.0°F (1982) | 2.15 in (1994) |
| April 11 | 91.0°F (1930) | 23.0°F (1989) | 1.85 in (2024) |
| April 12 | 88.0°F (1930) | 24.1°F (1939) | 1.90 in (1979) |
| April 13 | 87.1°F (1941) | 26.1°F (1920) | 1.78 in (1911) |
| April 14 | 88.0°F (2010) | 26.1°F (1907) | 2.98 in (1972) |
| April 15 | 87.1°F (1931) | 25.0°F (1943) | 2.95 in (1998) |
| April 16 | 87.1°F (1977) | 27.0°F (1962) | 1.98 in (1992) |
| April 17 | 90.0°F (2019) | 26.1°F (1904) | 1.26 in (1922) |
| April 18 | 86.0°F (1913) | 24.1°F (2001) | 2.00 in (1969) |
| April 19 | 88.0°F (1915) | 21.0°F (1983) | 1.92 in (1970) |
| April 20 | 87.1°F (1971) | 23.0°F (1983) | 1.64 in (1968) |
| April 21 | 87.1°F (1902) | 26.1°F (1914) | 3.23 in (1984) |
| April 22 | 87.1°F (1925) | 28.9°F (1927) | 1.38 in (1973) |
| April 23 | 90.0°F (1925) | 28.0°F (1910) | 1.97 in (2011) |
| April 24 | 91.0°F (1925) | 26.1°F (1910) | 4.11 in (1975) |
| April 25 | 90.0°F (1915) | 30.0°F (1910) | 3.33 in (2019) |
| April 26 | 89.1°F (1989) | 28.0°F (1919) | 2.48 in (1912) |
| April 27 | 88.0°F (1915) | 30.9°F (1976) | 2.32 in (2011) |
| April 28 | 90.0°F (1915) | 30.0°F (1992) | 3.49 in (1996) |
| April 29 | 90.0°F (1899) | 33.1°F (1988) | 2.41 in (1950) |
| April 30 | 90.0°F (2007) | 32.0°F (1969) | 2.39 in (2017) |