April weather in Oconomowoc Lake, WI
The average temperature in Oconomowoc Lake in April is 46.1°F (35.8°F–56.4°F). Average precipitation: 3.86 inches. Average snowfall is 2.0 inches.
April is a spring month in Oconomowoc Lake, and is cooler than the annual average of 47.2°F. Daily temperatures swing about 20.6°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 13h 11m. For travel, April is cool.
Avg High
56.4°F
Avg Low
35.8°F
Precipitation
3.86 in
Snow
2.0 in
April records in Oconomowoc Lake
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| April 1 | 81.0°F (1946) | 17.1°F (2018) | 1.08 in (2007) |
| April 2 | 82.0°F (2010) | 12.0°F (1896) | 2.25 in (1982) |
| April 3 | 79.0°F (2010) | 10.0°F (1954) | 1.68 in (2007) |
| April 4 | 70.0°F (1988) | 14.0°F (1995) | 0.86 in (1999) |
| April 5 | 80.1°F (1988) | 12.0°F (1982) | 0.88 in (1947) |
| April 6 | 84.0°F (1991) | 3.9°F (1982) | 1.32 in (1978) |
| April 7 | 81.0°F (1893) | 14.0°F (2018) | 2.27 in (1893) |
| April 8 | 79.0°F (2001) | 14.0°F (2018) | 0.95 in (2002) |
| April 9 | 75.9°F (1945) | 15.1°F (2003) | 2.19 in (2015) |
| April 10 | 80.1°F (1945) | 19.0°F (1997) | 1.53 in (2013) |
| April 11 | 82.0°F (2011) | 10.9°F (1973) | 1.39 in (2008) |
| April 12 | 81.0°F (1977) | 19.9°F (1950) | 0.94 in (1893) |
| April 13 | 81.0°F (2023) | 16.0°F (1997) | 0.83 in (2026) |
| April 14 | 81.0°F (2023) | 17.1°F (1950) | 2.35 in (2014) |
| April 15 | 84.0°F (2003) | 21.0°F (2014) | 1.31 in (1993) |
| April 16 | 88.0°F (2002) | 19.0°F (1949) | 1.39 in (2026) |
| April 17 | 87.1°F (2002) | 21.0°F (1983) | 1.32 in (1896) |
| April 18 | 84.0°F (1977) | 18.0°F (1983) | 1.46 in (2013) |
| April 19 | 88.0°F (2002) | 23.0°F (2018) | 1.16 in (2025) |
| April 20 | 86.0°F (1987) | 21.0°F (1956) | 1.93 in (1993) |
| April 21 | 84.0°F (1985) | 25.0°F (1986) | 1.52 in (1973) |
| April 22 | 88.0°F (1980) | 23.0°F (2021) | 1.12 in (1988) |
| April 23 | 88.0°F (1980) | 26.1°F (2015) | 2.37 in (1999) |
| April 24 | 84.9°F (1990) | 23.0°F (1956) | 1.37 in (2010) |
| April 25 | 84.9°F (1990) | 25.0°F (1967) | 1.47 in (2008) |
| April 26 | 87.1°F (1986) | 27.0°F (1972) | 1.93 in (2009) |
| April 27 | 84.9°F (1986) | 24.1°F (1946) | 1.86 in (1956) |
| April 28 | 82.9°F (1952) | 26.1°F (2019) | 1.70 in (1975) |
| April 29 | 87.1°F (1970) | 21.9°F (1958) | 1.32 in (1951) |
| April 30 | 84.0°F (1957) | 28.0°F (1956) | 0.87 in (1894) |