Weather on October 20
Indianapolis, IN
55 Years of Data
Avg High
59°F
Avg Low
40°F
Warmest
1971
67°F avg
Coldest
1989
31°F avg
About This Date
October 20th in Indianapolis, IN typically brings cool fall weather, with average highs around 59°F and lows near 40°F. Over 53 years of records, the warmest October 20th was in 1971 (67°F average), while the coldest was 1989 (31°F) — a 36°F range across recorded history. Precipitation has occurred on 32% of recorded October 20th dates, with snow falling 2% of the time (heaviest snowfall: 3"). The last decade has been 3.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.8°F warmer on this date compared to 20-30 years ago.
Planning for October 20th in Indianapolis, IN? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 63° | 37° | 50° | — | — |
| 2024 | 72° | 38° | 55° | — | — |
| 2023 | 56° | 42° | 49° | 0.2" | — |
| 2022 | 57° | 29° | 43° | — | — |
| 2021 | 71° | 46° | 59° | — | — |
| 2020 | 55° | 42° | 49° | 3.53" | — |
| 2019 | 71° | 47° | 59° | — | — |
| 2018 | 59° | 37° | 48° | — | — |
| 2017 | 75° | 47° | 61° | — | — |
| 2016 | 57° | 52° | 54° | 3.3" | — |
| 2015 | 72° | 48° | 60° | — | — |
| 2014 | 67° | 45° | 56° | 0.05" | — |
| 2012 | 48° | 44° | 46° | 1.04" | — |
| 2011 | 45° | 40° | 42° | 4.39" | — |
| 2010 | 65° | 32° | 48° | — | — |
| 2009 | 62° | 35° | 49° | — | — |
| 2008 | 60° | 37° | 49° | — | — |
| 2007 | 59° | 49° | 54° | 0.03" | — |
| 2006 | 49° | 38° | 43° | 0.69" | — |
| 2005 | 54° | 44° | 49° | 3.91" | — |
| 2004 | 54° | 45° | 49° | 0.03" | — |
| 2003 | 71° | 46° | 59° | — | — |
| 2002 | 54° | 27° | 40° | — | — |
| 2001 | 63° | 33° | 48° | 1.32" | — |
| 2000 | 69° | 44° | 57° | — | — |
| 1999 | 57° | 35° | 46° | — | — |
| 1997 | 62° | 36° | 49° | — | — |
| 1996 | 55° | 31° | 43° | — | — |
| 1995 | 48° | 38° | 43° | 0.61" | — |
| 1994 | 67° | 39° | 53° | — | — |
| 1993 | 61° | 54° | 57° | 0.69" | — |
| 1992 | 52° | 34° | 43° | — | — |
| 1991 | 56° | 28° | 42° | — | — |
| 1990 | 52° | 31° | 41° | — | — |
| 1989coldest | 32° | 31° | 31° | 0.76" | 3" |
| 1988 | 55° | 34° | 44° | — | — |
| 1987 | 57° | 35° | 46° | — | — |
| 1986 | 65° | 33° | 49° | — | — |
| 1985 | 72° | 57° | 64° | 1.6" | — |
| 1984 | 69° | 39° | 54° | — | — |
| 1983 | 58° | 46° | 52° | 1.27" | — |
| 1982 | 51° | 44° | 48° | — | — |
| 1981 | 53° | 35° | 44° | — | — |
| 1980 | 48° | 38° | 43° | — | — |
| 1979 | 78° | 56° | 67° | — | — |
| 1978 | 59° | 39° | 49° | — | — |
| 1977 | 56° | 33° | 44° | — | — |
| 1976 | 46° | 40° | 43° | — | — |
| 1975 | 49° | 44° | 46° | 0.1" | — |
| 1974 | 51° | 34° | 42° | — | — |
| 1973 | 74° | 37° | 55° | — | — |
| 1972 | 45° | 27° | 36° | — | — |
| 1971warmest | 80° | 54° | 67° | — | — |
53 years of data from INDIANAPOLIS SE SIDE