Weather on March 18
Indianapolis, IN
55 Years of Data
Avg High
50°F
Avg Low
31°F
Warmest
2012
64°F avg
Coldest
2023
23°F avg
About This Date
March 18th in Indianapolis, IN typically brings cool spring weather, with average highs around 50°F and lows near 31°F. Over 56 years of records, the warmest March 18th was in 2012 (64°F average), while the coldest was 2023 (23°F) — a 41°F range across recorded history. Precipitation has occurred on 30% of recorded March 18th dates, with snow falling 2% of the time. 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 March 18th 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 |
|---|---|---|---|---|---|
| 2026 | 49° | 22° | 35° | — | — |
| 2025 | 72° | 40° | 56° | — | — |
| 2024 | 34° | 28° | 31° | — | — |
| 2023coldest | 29° | 18° | 23° | 0.03" | 0.4" |
| 2022 | 65° | 48° | 56° | 2.03" | — |
| 2021 | 54° | 36° | 45° | 4.52" | — |
| 2020 | 50° | 38° | 44° | 2.29" | — |
| 2019 | 48° | 23° | 36° | — | — |
| 2018 | 54° | 22° | 38° | — | — |
| 2017 | 45° | 36° | 40° | — | — |
| 2016 | 56° | 39° | 47° | — | — |
| 2015 | 47° | 24° | 35° | — | — |
| 2014 | 54° | 24° | 39° | — | — |
| 2013 | 36° | 29° | 32° | 1.65" | — |
| 2012warmest | 76° | 52° | 64° | 0.53" | — |
| 2011 | 72° | 42° | 57° | — | — |
| 2010 | 60° | 31° | 45° | — | — |
| 2009 | 71° | 39° | 55° | — | — |
| 2008 | 44° | 32° | 38° | 1.96" | — |
| 2007 | 38° | 20° | 29° | — | — |
| 2006 | 44° | 23° | 34° | — | — |
| 2005 | 55° | 27° | 41° | — | — |
| 2004 | 38° | 25° | 31° | — | — |
| 2003 | 72° | 50° | 61° | — | — |
| 2002 | 42° | 35° | 39° | — | — |
| 2001 | 36° | 20° | 28° | — | — |
| 2000 | 40° | 24° | 32° | — | — |
| 1999 | 69° | 35° | 52° | — | — |
| 1998 | 51° | 36° | 43° | 2.69" | — |
| 1997 | 51° | 39° | 45° | — | — |
| 1996 | 50° | 28° | 39° | — | — |
| 1995 | 62° | 37° | 50° | — | — |
| 1994 | 48° | 22° | 35° | — | — |
| 1993 | 32° | 15° | 24° | — | — |
| 1992 | 39° | 29° | 34° | 2.08" | — |
| 1991 | 53° | 44° | 49° | 1.8" | — |
| 1990 | 53° | 31° | 42° | — | — |
| 1989 | 74° | 33° | 53° | — | — |
| 1988 | 43° | 30° | 36° | 0.51" | — |
| 1987 | 53° | 31° | 42° | — | — |
| 1986 | 55° | 32° | 44° | — | — |
| 1985 | 45° | 23° | 34° | — | — |
| 1984 | 34° | 30° | 32° | 0.25" | — |
| 1983 | 61° | 38° | 49° | 0.69" | — |
| 1982 | 55° | 36° | 45° | 0.23" | — |
| 1981 | 50° | 25° | 37° | — | — |
| 1980 | 55° | 29° | 42° | 0.3" | — |
| 1979 | 65° | 34° | 49° | — | — |
| 1978 | 36° | 21° | 28° | — | — |
| 1977 | 53° | 36° | 44° | 0.64" | — |
| 1976 | 35° | 18° | 26° | — | — |
| 1975 | 55° | 38° | 46° | — | — |
| 1974 | 36° | 31° | 33° | — | — |
| 1973 | 33° | 27° | 30° | 0.23" | — |
| 1972 | 48° | 33° | 41° | — | — |
| 1971 | 43° | 26° | 34° | — | — |
56 years of data from INDIANAPOLIS SE SIDE