June weather in Janesville, IA
The average temperature in Janesville in June is 71.5°F (60.8°F–82.2°F). Average precipitation: 5.72 inches.
June is a summer month in Janesville, and is warmer than the annual average of 49°F. Daily temperatures swing about 21.4°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 15h 5m. For travel, June is a wet month.
Avg High
82.2°F
Avg Low
60.8°F
Precipitation
5.72 in
Daylight
15h 5m
June records in Janesville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| June 1 | 91.9°F (1988) | 37.9°F (1964) | 0.92 in (1954) |
| June 2 | 96.1°F (2020) | 39.9°F (1969) | 1.20 in (1951) |
| June 3 | 93.0°F (2011) | 39.9°F (1969) | 1.19 in (2016) |
| June 4 | 93.0°F (1968) | 39.9°F (1990) | 2.79 in (1986) |
| June 5 | 96.1°F (1977) | 39.9°F (1951) | 1.73 in (2022) |
| June 6 | 97.0°F (2011) | 39.0°F (1983) | 2.12 in (2003) |
| June 7 | 98.1°F (1963) | 44.1°F (1960) | 2.12 in (1967) |
| June 8 | 102.0°F (1985) | 43.0°F (1978) | 1.90 in (2008) |
| June 9 | 95.0°F (2015) | 39.0°F (1977) | 2.31 in (2020) |
| June 10 | 97.0°F (2021) | 41.0°F (1989) | 1.18 in (2016) |
| June 11 | 96.1°F (2001) | 44.1°F (1972) | 1.67 in (1998) |
| June 12 | 93.0°F (1952) | 41.0°F (2006) | 1.57 in (2013) |
| June 13 | 100.0°F (1987) | 39.9°F (1969) | 2.58 in (2000) |
| June 14 | 99.0°F (1987) | 45.0°F (1969) | 2.27 in (1978) |
| June 15 | 91.0°F (1987) | 42.1°F (1969) | 4.35 in (1980) |
| June 16 | 91.0°F (1987) | 43.0°F (1961) | 2.07 in (2014) |
| June 17 | 100.0°F (2021) | 41.0°F (1960) | 2.58 in (1993) |
| June 18 | 98.1°F (1953) | 44.1°F (1965) | 2.19 in (2018) |
| June 19 | 98.1°F (1953) | 43.0°F (1970) | 1.89 in (2014) |
| June 20 | 102.0°F (1988) | 44.1°F (1961) | 2.22 in (2025) |
| June 21 | 102.9°F (1988) | 41.0°F (1992) | 1.37 in (2020) |
| June 22 | 98.1°F (1988) | 45.0°F (1972) | 2.91 in (2016) |
| June 23 | 95.0°F (1956) | 46.0°F (1972) | 2.51 in (1994) |
| June 24 | 97.0°F (2003) | 43.0°F (1972) | 2.40 in (1959) |
| June 25 | 96.1°F (1954) | 42.1°F (2004) | 2.45 in (2022) |
| June 26 | 95.0°F (1991) | 48.0°F (1974) | 3.22 in (2005) |
| June 27 | 98.1°F (2012) | 45.0°F (2017) | 1.36 in (1966) |
| June 28 | 95.0°F (1988) | 44.1°F (1968) | 1.96 in (1959) |
| June 29 | 99.0°F (1970) | 50.0°F (1951) | 2.11 in (1959) |
| June 30 | 96.1°F (1991) | 50.0°F (1951) | 2.29 in (2018) |