April weather in Knoxville, IA
The average temperature in Knoxville in April is 49.9°F (39.2°F–60.6°F). Average precipitation: 3.85 inches.
April is a spring month in Knoxville, and is cooler than the annual average of 49.9°F. Daily temperatures swing about 21.4°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 13h 7m. For travel, April is a comfortable month to visit.
Avg High
60.6°F
Avg Low
39.2°F
Precipitation
3.85 in
Daylight
13h 7m
April records in Knoxville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| April 1 | 81.0°F (1946) | 15.1°F (1899) | 1.25 in (1897) |
| April 2 | 87.1°F (1981) | 15.1°F (1970) | 1.36 in (1983) |
| April 3 | 84.9°F (2012) | 9.0°F (1975) | 1.40 in (1957) |
| April 4 | 87.1°F (1929) | 12.9°F (2018) | 1.69 in (1947) |
| April 5 | 82.9°F (1991) | 14.0°F (2018) | 2.52 in (1965) |
| April 6 | 86.0°F (1991) | 10.0°F (1982) | 1.78 in (1938) |
| April 7 | 84.9°F (2010) | 14.0°F (2018) | 1.91 in (2005) |
| April 8 | 87.1°F (1931) | 19.0°F (1972) | 1.50 in (1904) |
| April 9 | 84.0°F (1905) | 18.0°F (1928) | 3.00 in (1973) |
| April 10 | 91.9°F (1930) | 19.9°F (1918) | 2.10 in (1973) |
| April 11 | 90.0°F (1930) | 19.9°F (1918) | 1.11 in (2008) |
| April 12 | 84.9°F (1930) | 16.0°F (1940) | 1.85 in (2005) |
| April 13 | 82.9°F (1908) | 16.0°F (2001) | 1.06 in (1967) |
| April 14 | 87.1°F (2006) | 19.0°F (1907) | 3.94 in (2014) |
| April 15 | 88.0°F (1896) | 18.0°F (1928) | 1.55 in (2012) |
| April 16 | 88.0°F (2002) | 21.9°F (2020) | 1.80 in (1921) |
| April 17 | 86.0°F (2004) | 19.9°F (1921) | 1.45 in (2013) |
| April 18 | 89.1°F (1948) | 21.0°F (1983) | 4.18 in (2013) |
| April 19 | 84.9°F (1987) | 24.1°F (2022) | 1.84 in (1991) |
| April 20 | 90.0°F (1987) | 23.0°F (2022) | 1.79 in (1964) |
| April 21 | 91.0°F (1980) | 23.0°F (1966) | 1.33 in (1984) |
| April 22 | 91.9°F (1980) | 25.0°F (1936) | 1.61 in (2005) |
| April 23 | 86.0°F (1980) | 25.0°F (1927) | 2.05 in (1968) |
| April 24 | 89.1°F (1989) | 24.1°F (1956) | 3.95 in (1976) |
| April 25 | 89.1°F (1949) | 24.1°F (1934) | 2.28 in (2007) |
| April 26 | 89.1°F (1987) | 23.0°F (1907) | 2.42 in (2007) |
| April 27 | 87.1°F (1981) | 26.1°F (1933) | 2.16 in (1991) |
| April 28 | 90.0°F (1970) | 28.0°F (1966) | 2.08 in (1974) |
| April 29 | 91.0°F (1987) | 24.1°F (1958) | 2.22 in (1991) |
| April 30 | 89.1°F (1926) | 28.0°F (1907) | 2.46 in (1986) |