April weather in Decorah, IA
The average temperature in Decorah in April is 49.3°F (37.3°F–61.3°F). Average precipitation: 3.95 inches. Average snowfall is 1.7 inches.
April is a spring month in Decorah, and is warmer than the annual average of 48.5°F. Daily temperatures swing about 24°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 13h 12m. For travel, April is cool.
Avg High
61.3°F
Avg Low
37.3°F
Precipitation
3.95 in
Snow
1.7 in
April records in Decorah
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| April 1 | 82.0°F (2010) | 9.0°F (1924) | 0.55 in (1896) |
| April 2 | 82.9°F (2010) | 9.0°F (1924) | 1.68 in (2026) |
| April 3 | 79.0°F (1921) | 10.0°F (1954) | 1.30 in (1964) |
| April 4 | 82.0°F (1929) | 10.0°F (1975) | 2.16 in (2026) |
| April 5 | 82.9°F (1991) | 10.0°F (2018) | 0.81 in (1927) |
| April 6 | 89.1°F (1991) | 5.0°F (1982) | 1.10 in (1908) |
| April 7 | 87.1°F (1991) | 6.1°F (1911) | 1.49 in (1951) |
| April 8 | 84.0°F (1931) | 7.0°F (1972) | 1.10 in (1904) |
| April 9 | 79.0°F (1934) | 14.0°F (1928) | 1.27 in (1965) |
| April 10 | 90.0°F (1930) | 16.0°F (1960) | 1.99 in (1973) |
| April 11 | 84.0°F (2011) | 16.0°F (1973) | 1.54 in (2001) |
| April 12 | 87.1°F (2023) | 16.0°F (1939) | 2.44 in (1903) |
| April 13 | 87.1°F (2023) | 19.0°F (1939) | 0.88 in (1897) |
| April 14 | 89.1°F (2003) | 18.0°F (1907) | 1.35 in (2018) |
| April 15 | 89.1°F (2002) | 9.0°F (1928) | 1.76 in (2012) |
| April 16 | 88.0°F (2002) | 12.0°F (1949) | 2.67 in (1973) |
| April 17 | 87.1°F (2002) | 19.0°F (1951) | 1.99 in (1960) |
| April 18 | 89.1°F (1985) | 19.0°F (1953) | 3.03 in (1976) |
| April 19 | 84.9°F (1948) | 18.0°F (2018) | 1.45 in (1916) |
| April 20 | 88.0°F (1987) | 18.0°F (1956) | 1.20 in (2017) |
| April 21 | 90.0°F (1980) | 19.9°F (1959) | 2.11 in (2025) |
| April 22 | 93.0°F (1980) | 19.9°F (1986) | 1.23 in (1999) |
| April 23 | 84.9°F (1960) | 19.0°F (1927) | 3.74 in (1968) |
| April 24 | 91.0°F (1939) | 15.1°F (1956) | 1.60 in (1950) |
| April 25 | 87.1°F (2009) | 19.0°F (1934) | 2.48 in (2008) |
| April 26 | 86.0°F (1914) | 21.9°F (1907) | 1.40 in (2009) |
| April 27 | 84.9°F (1901) | 21.0°F (1933) | 1.66 in (2009) |
| April 28 | 90.0°F (1910) | 23.0°F (1928) | 2.34 in (1975) |
| April 29 | 93.0°F (1910) | 23.0°F (1958) | 1.56 in (1991) |
| April 30 | 90.0°F (1952) | 19.9°F (1956) | 1.78 in (1984) |