Weather on March 20
Saint Louis, MO
55 Years of Data
Avg High
58°F
Avg Low
37°F
Warmest
2012
72°F avg
Coldest
1986
29°F avg
About This Date
March 20th in Saint Louis, MO typically brings cool spring weather, with average highs around 58°F and lows near 37°F. Over 55 years of records, the warmest March 20th was in 2012 (72°F average), while the coldest was 1986 (29°F) — a 43°F range across recorded history. Precipitation has occurred on 33% of recorded March 20th dates, with snow falling 2% of the time. The last decade has been 4.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.2°F warmer on this date compared to 20-30 years ago.
Planning for March 20th in Saint Louis, MO? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 89° | 43° | 66° | — | — |
| 2025 | 51° | 31° | 41° | 0.03" | — |
| 2024 | 60° | 35° | 48° | — | — |
| 2023 | 58° | 19° | 39° | — | — |
| 2022 | 73° | 31° | 52° | — | — |
| 2021 | 60° | 28° | 44° | — | — |
| 2020 | 68° | 37° | 53° | — | — |
| 2019 | 55° | 43° | 49° | 0.05" | — |
| 2018 | 48° | 34° | 41° | 0.2" | — |
| 2017 | 58° | 47° | 52° | — | — |
| 2016 | 50° | 33° | 42° | 0.36" | — |
| 2015 | 57° | 42° | 50° | — | — |
| 2014 | 60° | 32° | 46° | — | — |
| 2013 | 48° | 28° | 38° | — | — |
| 2012warmest | 81° | 63° | 72° | — | — |
| 2011 | 59° | 43° | 51° | 0.86" | — |
| 2010 | 69° | 41° | 55° | — | — |
| 2009 | 58° | 30° | 44° | — | — |
| 2008 | 47° | 32° | 39° | 0.03" | — |
| 2007 | 70° | 45° | 57° | — | — |
| 2006 | 45° | 37° | 41° | — | — |
| 2005 | 48° | 27° | 37° | — | — |
| 2004 | 64° | 40° | 52° | — | — |
| 2003 | 67° | 49° | 58° | 0.56" | — |
| 2002 | 49° | 42° | 45° | 0.58" | — |
| 2001 | 50° | 32° | 41° | — | — |
| 2000 | 47° | 35° | 41° | 1.45" | — |
| 1999 | 51° | 39° | 45° | — | — |
| 1998 | 43° | 34° | 38° | 4.5" | — |
| 1997 | 54° | 36° | 45° | — | — |
| 1996 | 42° | 29° | 35° | 0.18" | 0.5" |
| 1995 | 73° | 38° | 55° | — | — |
| 1994 | 73° | 49° | 61° | — | — |
| 1993 | 44° | 36° | 40° | 0.36" | — |
| 1992 | 55° | 31° | 43° | — | — |
| 1991 | 68° | 53° | 61° | — | — |
| 1990 | 53° | 27° | 40° | — | — |
| 1989 | 44° | 28° | 36° | 7.19" | — |
| 1988 | 63° | 32° | 47° | — | — |
| 1987 | 65° | 36° | 50° | — | — |
| 1986coldest | 42° | 15° | 29° | — | — |
| 1985 | 66° | 43° | 54° | 0.03" | — |
| 1984 | 40° | 32° | 36° | 1.07" | — |
| 1983 | 50° | 40° | 45° | 1.27" | — |
| 1982 | 73° | 50° | 62° | — | — |
| 1980 | 60° | 35° | 48° | — | — |
| 1979 | 70° | 47° | 58° | 0.38" | — |
| 1978 | 58° | 35° | 46° | — | — |
| 1977 | 51° | 37° | 44° | — | — |
| 1976 | 72° | 61° | 66° | — | — |
| 1975 | 61° | 38° | 49° | — | — |
| 1974 | 43° | 28° | 35° | — | — |
| 1973 | 55° | 34° | 44° | 2.13" | — |
| 1972 | 78° | 47° | 62° | — | — |
| 1971 | 41° | — | — | — | — |
55 years of data from ST LOUIS ST LOUIS UNIV