April weather in Crystal Lake, IA
The average temperature in Crystal Lake in April is 45.4°F (34.3°F–56.5°F). Average precipitation: 3.88 inches.
April is a spring month in Crystal Lake, and is cooler than the annual average of 45.5°F. Daily temperatures swing about 22.2°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 13h 12m. For travel, April is cool.
Avg High
56.5°F
Avg Low
34.3°F
Precipitation
3.88 in
Daylight
13h 12m
April records in Crystal Lake
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| April 1 | 80.1°F (1982) | 10.0°F (1899) | 0.85 in (1897) |
| April 2 | 84.0°F (1981) | 15.1°F (1908) | 1.39 in (1977) |
| April 3 | 80.1°F (1921) | 5.0°F (1975) | 1.10 in (1934) |
| April 4 | 82.0°F (1929) | 9.0°F (1995) | 0.73 in (1985) |
| April 5 | 80.1°F (2005) | 9.0°F (1995) | 0.50 in (1901) |
| April 6 | 84.0°F (1991) | 9.0°F (1979) | 2.00 in (1999) |
| April 7 | 89.1°F (1991) | 8.1°F (1936) | 2.01 in (1919) |
| April 8 | 87.1°F (1931) | 10.9°F (1997) | 1.45 in (1904) |
| April 9 | 87.1°F (1977) | 9.0°F (1997) | 1.36 in (1922) |
| April 10 | 89.1°F (1930) | 12.9°F (1997) | 2.90 in (2013) |
| April 11 | 84.9°F (1968) | 15.1°F (1940) | 1.83 in (2001) |
| April 12 | 84.0°F (1925) | 15.1°F (1950) | 2.30 in (2005) |
| April 13 | 82.9°F (1931) | 12.0°F (1962) | 2.09 in (1964) |
| April 14 | 87.1°F (2006) | 12.9°F (1905) | 0.71 in (2014) |
| April 15 | 87.1°F (2003) | 16.0°F (2020) | 1.10 in (1973) |
| April 16 | 89.1°F (2002) | 15.1°F (2020) | 1.28 in (1998) |
| April 17 | 86.0°F (2004) | 17.1°F (1907) | 1.55 in (1898) |
| April 18 | 91.0°F (1985) | 16.0°F (1953) | 1.28 in (2013) |
| April 19 | 91.9°F (1985) | 21.0°F (1897) | 0.91 in (2015) |
| April 20 | 87.1°F (1985) | 21.9°F (1897) | 2.62 in (2005) |
| April 21 | 91.9°F (1980) | 21.0°F (1907) | 1.75 in (1912) |
| April 22 | 93.9°F (1980) | 21.0°F (1936) | 1.36 in (1989) |
| April 23 | 90.0°F (1939) | 19.9°F (1956) | 2.00 in (1968) |
| April 24 | 90.0°F (1939) | 19.9°F (1967) | 2.05 in (1929) |
| April 25 | 90.0°F (1949) | 23.0°F (1934) | 1.95 in (2008) |
| April 26 | 84.0°F (1962) | 19.0°F (1926) | 1.07 in (1914) |
| April 27 | 90.0°F (1977) | 23.0°F (1909) | 1.32 in (2009) |
| April 28 | 91.9°F (1910) | 21.0°F (1950) | 3.86 in (1975) |
| April 29 | 90.0°F (1970) | 21.9°F (1958) | 1.60 in (1963) |
| April 30 | 91.9°F (1965) | 24.1°F (1907) | 1.29 in (2006) |