Weather on September 20
Carmel, IN
55 Years of Data
Avg High
78°F
Avg Low
54°F
Warmest
1983
80°F avg
Coldest
1991
47°F avg
About This Date
September 20th in Carmel, IN typically brings pleasant fall weather, with average highs around 78°F and lows near 54°F. Over 53 years of records, the warmest September 20th was in 1983 (80°F average), while the coldest was 1991 (47°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 34% of September 20th dates historically, with the wettest September 20th recording 4.7" of rain. The last decade has been 2.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.2°F warmer on this date compared to 20-30 years ago.
Planning for September 20th in Carmel, IN? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 87° | 59° | 73° | — | — |
| 2024 | 88° | 57° | 72° | — | — |
| 2023 | 76° | 50° | 63° | — | — |
| 2022 | 80° | 58° | 69° | — | — |
| 2021 | 73° | 67° | 70° | 1.02" | — |
| 2020 | 67° | 39° | 53° | — | — |
| 2019 | 86° | 59° | 73° | — | — |
| 2018 | 88° | 67° | 77° | — | — |
| 2017 | 79° | 64° | 71° | — | — |
| 2016 | 84° | 56° | 70° | — | — |
| 2015 | 70° | 48° | 59° | 2.24" | — |
| 2014 | 79° | 52° | 65° | 0.15" | — |
| 2013 | 80° | 66° | 73° | 0.03" | — |
| 2012 | 69° | 40° | 54° | — | — |
| 2011 | 67° | 60° | 63° | 3.78" | — |
| 2010 | 81° | 62° | 71° | 0.05" | — |
| 2009 | 76° | 54° | 65° | — | — |
| 2008 | 82° | 49° | 65° | — | — |
| 2007 | 87° | 58° | 72° | — | — |
| 2005 | 85° | 63° | 74° | 3.66" | — |
| 2004 | 77° | 47° | 62° | — | — |
| 2003 | 70° | 44° | 57° | — | — |
| 2002 | 88° | 69° | 78° | 2.62" | — |
| 2001 | 71° | 55° | 63° | 0.51" | — |
| 2000 | 83° | 54° | 68° | — | — |
| 1999 | 84° | 50° | 67° | 0.05" | — |
| 1997 | 86° | 60° | 73° | — | — |
| 1996 | 74° | 46° | 60° | — | — |
| 1995 | 74° | 48° | 61° | 0.25" | — |
| 1994 | 79° | 47° | 63° | — | — |
| 1993 | 73° | 57° | 65° | 0.05" | — |
| 1992 | 68° | 47° | 57° | — | — |
| 1991coldest | 59° | 35° | 47° | — | — |
| 1990 | 64° | 49° | 56° | — | — |
| 1989 | 74° | 50° | 62° | — | — |
| 1988 | 77° | 55° | 66° | 1.63" | — |
| 1987 | 77° | 49° | 63° | — | — |
| 1986 | 77° | 64° | 71° | 2.41" | — |
| 1985 | 83° | 49° | 66° | — | — |
| 1984 | 81° | 53° | 67° | — | — |
| 1983warmest | 90° | 71° | 80° | — | — |
| 1982 | 72° | 44° | 58° | — | — |
| 1981 | 70° | 52° | 61° | — | — |
| 1980 | 81° | 56° | 68° | — | — |
| 1979 | 70° | 37° | 53° | — | — |
| 1978 | 90° | 66° | 78° | — | — |
| 1977 | 81° | 58° | 69° | — | — |
| 1976 | 83° | 61° | 72° | 0.64" | — |
| 1975 | 68° | 47° | 57° | 1.09" | — |
| 1974 | 82° | 64° | 73° | 0.18" | — |
| 1973 | 68° | 53° | 61° | — | — |
| 1972 | 84° | 66° | 75° | — | — |
| 1971 | 74° | 51° | 62° | 4.7" | — |
53 years of data from CARMEL 3 E