Weather on September 20
Evansville, IN
55 Years of Data
Avg High
82°F
Avg Low
60°F
Warmest
2018
84°F avg
Coldest
1991
52°F avg
About This Date
September 20th in Evansville, IN typically brings warm fall weather, with average highs around 82°F and lows near 60°F. Over 55 years of records, the warmest September 20th was in 2018 (84°F average), while the coldest was 1991 (52°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 31% of September 20th dates historically, with the wettest September 20th recording 4.57" of rain. The last decade has been 7.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 7.0°F warmer on this date compared to 20-30 years ago.
Planning for September 20th in Evansville, IN? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Warming Trend
1.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 91° | 60° | 76° | — | — |
| 2024 | 94° | 65° | 79° | — | — |
| 2023 | 84° | 60° | 72° | — | — |
| 2022 | 95° | 74° | 84° | — | — |
| 2021 | 86° | 71° | 79° | — | — |
| 2020 | 76° | 50° | 63° | — | — |
| 2019 | 92° | 71° | 81° | — | — |
| 2018warmest | 95° | 73° | 84° | — | — |
| 2017 | 89° | 69° | 79° | — | — |
| 2016 | 90° | 54° | 72° | — | — |
| 2015 | 78° | 56° | 67° | — | — |
| 2014 | 87° | 63° | 75° | — | — |
| 2013 | 77° | 64° | 71° | 1.8" | — |
| 2012 | 77° | 59° | 68° | — | — |
| 2011 | 79° | 65° | 72° | 1.5" | — |
| 2010 | 95° | 69° | 82° | — | — |
| 2009 | 81° | 67° | 74° | 0.25" | — |
| 2008 | 83° | 60° | 71° | — | — |
| 2007 | 96° | 66° | 81° | — | — |
| 2006 | 70° | 48° | 59° | — | — |
| 2005 | 72° | 67° | 69° | 1.83" | — |
| 2004 | 88° | 55° | 71° | — | — |
| 2003 | 80° | 52° | 66° | — | — |
| 2002 | — | 65° | — | 4.57" | — |
| 2001 | 82° | 59° | 71° | — | — |
| 2000 | 87° | 61° | 74° | — | — |
| 1999 | 73° | 60° | 67° | 0.05" | — |
| 1998 | 90° | 68° | 79° | — | — |
| 1997 | 81° | 58° | 69° | 0.03" | — |
| 1996 | 77° | 49° | 63° | 0.43" | — |
| 1995 | 79° | 62° | 70° | 0.56" | — |
| 1994 | 85° | 55° | 70° | — | — |
| 1993 | 80° | 63° | 71° | 0.03" | — |
| 1992 | 73° | 53° | 63° | 0.51" | — |
| 1991coldest | 63° | 41° | 52° | — | — |
| 1990 | 75° | 63° | 69° | — | — |
| 1989 | 81° | 58° | 69° | — | — |
| 1988 | 82° | 57° | 70° | — | — |
| 1987 | 78° | 55° | 67° | — | — |
| 1986 | 91° | 69° | 80° | — | — |
| 1985 | 86° | 56° | 71° | — | — |
| 1984 | 87° | 55° | 71° | — | — |
| 1983 | 85° | 58° | 71° | 0.56" | — |
| 1982 | 70° | 54° | 62° | 0.05" | — |
| 1981 | 81° | 53° | 67° | — | — |
| 1980 | 88° | 63° | 75° | — | — |
| 1979 | 75° | 55° | 65° | — | — |
| 1978 | 93° | 70° | 81° | — | — |
| 1977 | 76° | 56° | 66° | — | — |
| 1976 | 79° | 68° | 73° | 0.03" | — |
| 1975 | 74° | 54° | 64° | 0.36" | — |
| 1974 | 76° | 67° | 71° | 0.08" | — |
| 1973 | 73° | 61° | 67° | — | — |
| 1972 | 92° | 66° | 79° | — | — |
| 1971 | 68° | 54° | 61° | 2.13" | — |
55 years of data from EVANSVILLE MUSEUM