Weather on June 20
Naperville, IL
55 Years of Data
About This Date
June 20th in Naperville, IL typically brings warm summer weather, with average highs around 85°F and lows near 59°F — a 26°F daily swing. Over 55 years of records, the warmest June 20th was in 2012 (84°F average), while the coldest was 2003 (58°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 33% of June 20th dates historically, with the wettest June 20th recording 2.95" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for June 20th in Naperville, IL? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 83° | 64° | 73° | 0.13" | — |
| 2024 | 91° | 70° | 80° | — | — |
| 2023 | 86° | 54° | 70° | — | — |
| 2022 | 85° | 57° | 71° | — | — |
| 2021 | 89° | 58° | 73° | — | — |
| 2020 | 90° | 67° | 78° | — | — |
| 2019 | 75° | 55° | 65° | 2.24" | — |
| 2018 | 84° | 66° | 75° | 0.08" | — |
| 2017 | 78° | 54° | 66° | 0.08" | — |
| 2016 | 89° | 58° | 73° | — | — |
| 2015 | 70° | 53° | 61° | 0.03" | — |
| 2014 | 83° | 61° | 72° | 1.88" | — |
| 2013 | 77° | 53° | 65° | — | — |
| 2012warmest | 94° | 74° | 84° | — | — |
| 2011 | 83° | 65° | 74° | 1.07" | — |
| 2010 | 86° | 61° | 73° | — | — |
| 2009 | 88° | 67° | 77° | 1.02" | — |
| 2008 | 80° | 52° | 66° | — | — |
| 2007 | 81° | 52° | 66° | — | — |
| 2006 | 85° | 55° | 70° | 0.13" | — |
| 2005 | 85° | 51° | 68° | — | — |
| 2004 | 72° | 45° | 58° | — | — |
| 2003coldest | 74° | 43° | 58° | — | — |
| 2002 | 94° | 73° | 83° | — | — |
| 2001 | 88° | 64° | 76° | — | — |
| 2000 | 84° | 66° | 75° | 0.3" | — |
| 1999 | 82° | 51° | 67° | — | — |
| 1998 | 92° | 62° | 77° | — | — |
| 1997 | 90° | 74° | 82° | — | — |
| 1996 | 83° | 65° | 74° | — | — |
| 1995 | 97° | 69° | 83° | — | — |
| 1994 | 91° | 69° | 80° | — | — |
| 1993 | 83° | 59° | 71° | 0.76" | — |
| 1992 | 72° | 49° | 60° | 0.05" | — |
| 1991 | 93° | 60° | 77° | — | — |
| 1990 | 82° | 60° | 71° | 0.25" | — |
| 1989 | 84° | 60° | 72° | — | — |
| 1988 | 102° | — | — | — | — |
| 1987 | 90° | 67° | 78° | — | — |
| 1986 | 93° | 63° | 78° | — | — |
| 1985 | 81° | 45° | 63° | — | — |
| 1984 | 86° | 57° | 72° | — | — |
| 1983 | 87° | 58° | 72° | — | — |
| 1982 | 77° | 53° | 65° | — | — |
| 1981 | 84° | 58° | 71° | — | — |
| 1980 | 78° | 42° | 60° | 0.38" | — |
| 1979 | 92° | 73° | 82° | — | — |
| 1978 | 83° | 57° | 70° | — | — |
| 1977 | 82° | 57° | 70° | — | — |
| 1976 | 82° | 47° | 64° | — | — |
| 1975 | 92° | 63° | 77° | 0.81" | — |
| 1974 | 90° | 61° | 75° | — | — |
| 1973 | 81° | 57° | 69° | 0.56" | — |
| 1972 | 85° | 65° | 75° | 2.95" | — |
| 1971 | 91° | 71° | 81° | 0.48" | — |