Weather on March 20
Saint Louis, MO
55 Years of Data
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° | — | — | — | — |
Saint Louis, MO Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Saint Louis, MO Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Saint Louis, MO Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Saint Louis, MO
Saint Louis, MO has no months that meet our "pleasant" threshold — every season has tradeoffs.