May weather in Lake Delton, WI
The average temperature in Lake Delton in May is 57.3°F (45.2°F–69.4°F). Average precipitation: 4.38 inches.
May is a spring month in Lake Delton, and is warmer than the annual average of 45.7°F. Daily temperatures swing about 24.2°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 14h 31m. For travel, May is a comfortable month to visit.
Avg High
69.4°F
Avg Low
45.2°F
Precipitation
4.38 in
Daylight
14h 31m
May records in Lake Delton
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 90.0°F (1952) | 25.0°F (1945) | 1.50 in (1997) |
| May 2 | 91.0°F (1959) | 21.0°F (2004) | 2.06 in (2018) |
| May 3 | 88.0°F (1949) | 21.9°F (2005) | 2.43 in (2012) |
| May 4 | 88.0°F (1949) | 21.0°F (1935) | 2.48 in (2018) |
| May 5 | 91.9°F (1949) | 25.0°F (1992) | 1.28 in (1956) |
| May 6 | 87.1°F (1936) | 21.9°F (1989) | 2.35 in (1960) |
| May 7 | 87.1°F (2016) | 26.1°F (1925) | 1.31 in (1973) |
| May 8 | 84.9°F (1936) | 25.0°F (1947) | 1.65 in (2002) |
| May 9 | 88.0°F (1936) | 23.0°F (2020) | 1.17 in (1990) |
| May 10 | 86.0°F (1922) | 24.1°F (1966) | 1.78 in (2013) |
| May 11 | 91.0°F (1922) | 26.1°F (1925) | 1.22 in (1942) |
| May 12 | 89.1°F (1991) | 26.1°F (2020) | 0.95 in (1962) |
| May 13 | 93.9°F (2022) | 27.0°F (1996) | 1.98 in (1978) |
| May 14 | 91.0°F (2022) | 30.0°F (2013) | 0.92 in (1957) |
| May 15 | 96.1°F (1936) | 25.0°F (2016) | 1.35 in (1976) |
| May 16 | 90.0°F (1936) | 27.0°F (1997) | 1.10 in (1992) |
| May 17 | 87.1°F (1962) | 28.0°F (2002) | 2.10 in (1999) |
| May 18 | 88.0°F (1972) | 30.9°F (2002) | 2.55 in (2000) |
| May 19 | 91.9°F (1962) | 28.9°F (1929) | 1.40 in (2004) |
| May 20 | 90.0°F (2012) | 28.0°F (1954) | 1.48 in (2022) |
| May 21 | 91.0°F (1927) | 28.0°F (1997) | 2.10 in (2004) |
| May 22 | 93.9°F (1925) | 30.0°F (1967) | 1.38 in (2004) |
| May 23 | 89.1°F (1955) | 30.0°F (1935) | 0.83 in (1946) |
| May 24 | 91.9°F (2010) | 28.9°F (1988) | 1.60 in (1984) |
| May 25 | 93.0°F (2010) | 28.0°F (1925) | 1.61 in (2015) |
| May 26 | 90.0°F (1939) | 28.9°F (1925) | 1.40 in (2011) |
| May 27 | 91.9°F (2018) | 32.0°F (1971) | 2.16 in (1973) |
| May 28 | 98.1°F (2018) | 28.9°F (1984) | 1.80 in (1927) |
| May 29 | 95.0°F (2018) | 30.0°F (2021) | 1.81 in (1962) |
| May 30 | 97.0°F (1939) | 30.9°F (1996) | 1.58 in (1943) |
| May 31 | 91.9°F (1925) | 30.0°F (1923) | 1.35 in (1970) |