Weather on October 31
Indianapolis, IN
55 Years of Data
Avg High
60°F
Avg Low
41°F
Warmest
1971
66°F avg
Coldest
2023
32°F avg
About This Date
October 31st in Indianapolis, IN typically brings mild fall weather, with average highs around 60°F and lows near 41°F. Over 53 years of records, the warmest October 31st was in 1971 (66°F average), while the coldest was 2023 (32°F) — a 34°F range across recorded history. Rain or other precipitation has occurred on about 38% of October 31st dates historically, with the wettest October 31st recording 1.98" of rain. The last decade has been 6.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 6.0°F cooler on this date compared to 20-30 years ago.
Planning for October 31st in Indianapolis, IN? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Cooling Trend
1.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 56° | 35° | 45° | — | — |
| 2024 | 67° | 49° | 58° | 0.48" | — |
| 2023coldest | 40° | 24° | 32° | — | — |
| 2022 | 60° | 55° | 58° | 0.18" | — |
| 2021 | 60° | 42° | 51° | — | — |
| 2020 | 56° | 27° | 41° | — | — |
| 2019 | 46° | 30° | 38° | 1.78" | — |
| 2018 | 64° | 49° | 56° | 1.14" | — |
| 2017 | 43° | 31° | 37° | — | — |
| 2016 | 62° | 46° | 54° | — | — |
| 2015 | 56° | 44° | 50° | 0.18" | — |
| 2014 | 47° | 33° | 40° | 0.46" | — |
| 2012 | 42° | 37° | 40° | 0.58" | — |
| 2011 | 57° | 30° | 44° | 0.13" | — |
| 2010 | 62° | 34° | 48° | — | — |
| 2009 | 70° | 46° | 58° | 1.98" | — |
| 2008 | 60° | 26° | 43° | — | — |
| 2007 | 64° | 36° | 50° | — | — |
| 2006 | 73° | 45° | 59° | 0.1" | — |
| 2005 | 63° | 38° | 50° | — | — |
| 2004 | 75° | 49° | 62° | — | — |
| 2002 | 45° | 37° | 41° | 0.08" | — |
| 2001 | 60° | 46° | 53° | — | — |
| 2000 | 66° | 39° | 53° | — | — |
| 1999 | 74° | 51° | 62° | — | — |
| 1998 | 66° | 54° | 60° | 0.03" | — |
| 1997 | 64° | 41° | 53° | 0.13" | — |
| 1996 | 57° | 29° | 43° | — | — |
| 1995 | 64° | 46° | 55° | 0.3" | — |
| 1994 | 68° | 44° | 56° | — | — |
| 1993 | 35° | 30° | 33° | 0.41" | — |
| 1992 | 51° | 42° | 47° | 1.19" | — |
| 1991 | 63° | 50° | 56° | — | — |
| 1990 | 73° | 45° | 59° | — | — |
| 1989 | 75° | 45° | 60° | 0.28" | — |
| 1988 | 45° | 24° | 34° | — | — |
| 1987 | 75° | 44° | 60° | — | — |
| 1986 | 59° | 42° | 51° | — | — |
| 1985 | 57° | 45° | 51° | 0.2" | — |
| 1984 | 65° | 50° | 57° | — | — |
| 1983 | 60° | 43° | 51° | — | — |
| 1982 | 62° | 47° | 54° | 0.13" | — |
| 1981 | 75° | 47° | 61° | — | — |
| 1980 | 53° | 24° | 39° | — | — |
| 1979 | 70° | 47° | 58° | — | — |
| 1978 | 73° | 39° | 56° | — | — |
| 1977 | 65° | 41° | 53° | — | — |
| 1976 | 46° | 38° | 42° | 1.47" | — |
| 1975 | 52° | 35° | 43° | — | — |
| 1974 | 68° | 58° | 63° | — | — |
| 1973 | 52° | 42° | 47° | — | — |
| 1972 | 55° | 38° | 46° | — | — |
| 1971warmest | 79° | 54° | 66° | — | — |
53 years of data from INDIANAPOLIS SE SIDE