Weather on March 15
Saint Louis, MO
55 Years of Data
Avg High
59°F
Avg Low
34°F
Warmest
2012
69°F avg
Coldest
2017
24°F avg
About This Date
March 15th in Saint Louis, MO typically brings cool spring weather, with average highs around 59°F and lows near 34°F — a 25°F daily swing. Over 55 years of records, the warmest March 15th was in 2012 (69°F average), while the coldest was 2017 (24°F) — a 45°F range across recorded history. Rain or other precipitation has occurred on about 22% of March 15th dates historically, with the wettest March 15th recording 3.07" of rain. The last decade has been 3.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.7°F warmer on this date compared to 20-30 years ago.
Planning for March 15th in Saint Louis, MO? Bring layers as temperatures can vary throughout the day.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 70° | 35° | 52° | 1.55" | — |
| 2025 | 65° | 46° | 55° | — | — |
| 2024 | 63° | 39° | 51° | — | — |
| 2023 | 57° | 24° | 41° | — | — |
| 2022 | 70° | 37° | 53° | — | — |
| 2021 | 53° | 44° | 49° | 0.97" | — |
| 2020 | 41° | 35° | 38° | — | — |
| 2019 | 50° | 37° | 44° | — | — |
| 2018 | 70° | — | — | — | — |
| 2017coldest | 33° | 16° | 24° | — | — |
| 2016 | 67° | 56° | 61° | — | — |
| 2015 | 66° | 39° | 53° | — | — |
| 2014 | 69° | 38° | 53° | — | — |
| 2013 | 71° | 28° | 50° | — | — |
| 2012warmest | 85° | 54° | 69° | — | — |
| 2011 | 40° | 32° | 36° | 0.81" | — |
| 2010 | 48° | 44° | 46° | — | — |
| 2009 | 57° | 33° | 45° | — | — |
| 2008 | 61° | 46° | 53° | — | — |
| 2007 | 71° | 41° | 56° | 2.87" | — |
| 2006 | 52° | 29° | 40° | — | — |
| 2005 | 50° | 27° | 38° | — | — |
| 2004 | 58° | 30° | 44° | — | — |
| 2003 | 46° | 35° | 41° | — | — |
| 2002 | 74° | 43° | 58° | 0.33" | — |
| 2001 | 62° | 40° | 51° | 0.61" | — |
| 2000 | 58° | 39° | 48° | — | — |
| 1999 | 47° | 25° | 36° | — | — |
| 1998 | 41° | 25° | 33° | — | — |
| 1997 | 36° | 22° | 29° | — | — |
| 1996 | 68° | 37° | 53° | — | — |
| 1995 | 76° | 46° | 61° | — | — |
| 1994 | 72° | 38° | 55° | — | — |
| 1993 | 59° | 22° | 40° | — | — |
| 1992 | 42° | 28° | 35° | — | — |
| 1991 | 51° | 40° | 45° | — | — |
| 1990 | 66° | 35° | 51° | 0.51" | — |
| 1989 | 67° | 22° | 44° | — | — |
| 1988 | 39° | 14° | 27° | — | — |
| 1987 | 66° | 42° | 54° | 0.23" | — |
| 1986 | 57° | 29° | 43° | — | — |
| 1985 | 56° | 33° | 44° | — | — |
| 1984 | 74° | 39° | 56° | 1.02" | — |
| 1983 | 62° | 36° | 49° | — | — |
| 1982 | 49° | 19° | 34° | 3.07" | — |
| 1980 | 54° | 24° | 39° | — | — |
| 1979 | 55° | 20° | 37° | — | — |
| 1978 | 38° | 35° | 36° | — | — |
| 1977 | 81° | 33° | 57° | — | — |
| 1976 | 61° | 37° | 49° | — | — |
| 1975 | 50° | 28° | 39° | — | — |
| 1974 | 56° | 32° | 44° | 0.1" | — |
| 1973 | 70° | 44° | 57° | — | — |
| 1972 | 63° | 44° | 53° | — | — |
| 1971 | 81° | — | — | 2.49" | — |
55 years of data from ST LOUIS ST LOUIS UNIV