April weather in Alton, MO
The average temperature in Alton in April is 56.0°F (43.2°F–68.7°F). Average precipitation: 4.66 inches.
April is a spring month in Alton, and is warmer than the annual average of 55.7°F. Daily temperatures swing about 25.5°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 12h 57m. For travel, April is a comfortable month to visit.
Avg High
68.7°F
Avg Low
43.2°F
Precipitation
4.66 in
Daylight
12h 57m
April records in Alton
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| April 1 | 86.0°F (1963) | 25.0°F (1995) | 1.35 in (2008) |
| April 2 | 82.9°F (2010) | 23.0°F (1972) | 1.63 in (1945) |
| April 3 | 82.9°F (1981) | 25.0°F (1975) | 1.75 in (1957) |
| April 4 | 84.0°F (2011) | 21.9°F (1975) | 3.31 in (1957) |
| April 5 | 88.0°F (1967) | 24.1°F (2002) | 4.75 in (2025) |
| April 6 | 84.9°F (1967) | 23.0°F (1968) | 1.92 in (2025) |
| April 7 | 84.0°F (1977) | 21.0°F (2007) | 0.71 in (2005) |
| April 8 | 86.0°F (1978) | 15.1°F (2007) | 1.68 in (2002) |
| April 9 | 86.0°F (1967) | 19.0°F (2007) | 1.32 in (1984) |
| April 10 | 90.0°F (2001) | 19.9°F (1982) | 1.91 in (2008) |
| April 11 | 88.0°F (1965) | 19.9°F (1973) | 2.25 in (2008) |
| April 12 | 84.0°F (1972) | 28.0°F (1975) | 1.76 in (1979) |
| April 13 | 91.0°F (1972) | 24.1°F (1973) | 1.43 in (1996) |
| April 14 | 87.1°F (1981) | 25.0°F (1997) | 2.50 in (2002) |
| April 15 | 86.0°F (2006) | 25.0°F (1983) | 1.98 in (1945) |
| April 16 | 86.0°F (2024) | 27.0°F (1983) | 1.26 in (1954) |
| April 17 | 89.1°F (2006) | 28.0°F (1983) | 0.91 in (2017) |
| April 18 | 89.1°F (2006) | 27.0°F (2001) | 1.60 in (1953) |
| April 19 | 91.0°F (2006) | 23.0°F (1983) | 2.32 in (1970) |
| April 20 | 87.1°F (2000) | 33.1°F (1969) | 1.55 in (1977) |
| April 21 | 91.0°F (1963) | 28.9°F (1982) | 2.13 in (1955) |
| April 22 | 91.0°F (1963) | 27.0°F (1982) | 1.86 in (2017) |
| April 23 | 91.9°F (1980) | 28.9°F (1982) | 2.67 in (1966) |
| April 24 | 91.0°F (1980) | 28.0°F (1982) | 3.09 in (2011) |
| April 25 | 84.9°F (1965) | 28.9°F (1983) | 2.86 in (2011) |
| April 26 | 84.0°F (1984) | 28.9°F (1976) | 3.79 in (2011) |
| April 27 | 84.9°F (1971) | 34.0°F (1978) | 1.73 in (2017) |
| April 28 | 87.1°F (1970) | 30.0°F (1979) | 2.09 in (1957) |
| April 29 | 87.1°F (2001) | 23.0°F (1996) | 2.58 in (2021) |
| April 30 | 87.1°F (1965) | 28.9°F (2008) | 3.95 in (2017) |