June weather in Sullivan, IL
The average temperature in Sullivan in June is 72.9°F (62.7°F–83.2°F). Average precipitation: 4.95 inches.
June is a summer month in Sullivan, and is warmer than the annual average of 53°F. Daily temperatures swing about 20.5°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 14h 45m. For travel, June is a comfortable month to visit.
Avg High
83.2°F
Avg Low
62.7°F
Precipitation
4.95 in
Daylight
14h 45m
June records in Sullivan
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| June 1 | 90.0°F (2023) | 46.9°F (2003) | 2.43 in (1999) |
| June 2 | 90.0°F (2018) | 46.9°F (2001) | 0.63 in (1994) |
| June 3 | 91.9°F (2023) | 46.0°F (2004) | 0.70 in (2008) |
| June 4 | 91.9°F (2020) | 46.9°F (2009) | 1.52 in (2008) |
| June 5 | 93.9°F (2011) | 46.9°F (2009) | 2.56 in (2001) |
| June 6 | 91.9°F (2017) | 48.9°F (2012) | 1.82 in (1943) |
| June 7 | 91.0°F (2020) | 48.9°F (2012) | 2.60 in (2008) |
| June 8 | 93.0°F (2018) | 48.0°F (2023) | 1.63 in (2015) |
| June 9 | 91.9°F (2011) | 46.9°F (2023) | 1.20 in (1945) |
| June 10 | 91.0°F (2016) | 52.0°F (2007) | 0.85 in (1950) |
| June 11 | 91.0°F (2016) | 52.0°F (2007) | 2.45 in (2002) |
| June 12 | 93.0°F (2021) | 51.1°F (2023) | 2.68 in (2018) |
| June 13 | 96.1°F (2021) | 50.0°F (2012) | 1.13 in (1942) |
| June 14 | 95.0°F (2022) | 48.9°F (2019) | 1.22 in (2010) |
| June 15 | 97.0°F (2022) | 48.9°F (2019) | 1.60 in (1944) |
| June 16 | 96.1°F (2022) | 54.0°F (2023) | 2.77 in (2019) |
| June 17 | 97.0°F (2022) | 53.1°F (2005) | 1.03 in (1998) |
| June 18 | 93.0°F (2007) | 50.0°F (2005) | 0.85 in (1944) |
| June 19 | 96.1°F (2021) | 45.0°F (2004) | 4.89 in (2015) |
| June 20 | 91.0°F (2012) | 48.9°F (2003) | 2.38 in (2009) |
| June 21 | 91.9°F (2020) | 48.9°F (2003) | 1.20 in (1995) |
| June 22 | 93.9°F (2022) | 50.0°F (2004) | 1.43 in (1998) |
| June 23 | 91.9°F (2009) | 52.0°F (2001) | 1.27 in (2006) |
| June 24 | 91.0°F (2009) | 51.1°F (2001) | 1.69 in (2000) |
| June 25 | 93.9°F (2016) | 48.9°F (2004) | 1.12 in (1945) |
| June 26 | 93.9°F (2016) | 51.1°F (2001) | 2.82 in (1942) |
| June 27 | 93.9°F (2016) | 51.1°F (2017) | 1.75 in (1951) |
| June 28 | 91.0°F (2005) | 51.1°F (2004) | 2.25 in (1951) |
| June 29 | 99.0°F (2012) | 52.0°F (2016) | 1.48 in (1998) |
| June 30 | 93.9°F (2005) | 52.0°F (2016) | 1.12 in (1946) |