Weather on March 18
Saint Louis, MO
55 Years of Data
Avg High
57°F
Avg Low
36°F
Warmest
2012
67°F avg
Coldest
1993
29°F avg
About This Date
March 18th in Saint Louis, MO typically brings cool spring weather, with average highs around 57°F and lows near 36°F. Over 55 years of records, the warmest March 18th was in 2012 (67°F average), while the coldest was 1993 (29°F) — a 38°F range across recorded history. Precipitation has occurred on 35% of recorded March 18th dates, with snow falling 2% of the time (heaviest snowfall: 1.9"). 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 Saint Louis, MO? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 69° | 34° | 51° | — | — |
| 2025 | 82° | 44° | 63° | — | — |
| 2024 | 42° | 28° | 35° | — | — |
| 2023 | 35° | 23° | 29° | — | — |
| 2022 | 62° | 46° | 54° | 0.38" | — |
| 2021 | 48° | 40° | 44° | 2.36" | — |
| 2020 | 61° | 41° | 51° | 0.69" | — |
| 2019 | 53° | 28° | 41° | — | — |
| 2018 | 43° | 39° | 41° | — | — |
| 2017 | 69° | 40° | 54° | — | — |
| 2016 | 65° | 43° | 54° | — | — |
| 2015 | 53° | 38° | 45° | — | — |
| 2014 | 47° | 34° | 40° | — | — |
| 2013 | 41° | 34° | 37° | 2.87" | — |
| 2012warmest | 81° | 54° | 67° | 2.29" | — |
| 2011 | 81° | 51° | 66° | — | — |
| 2010 | 60° | 38° | 49° | — | — |
| 2009 | 79° | 44° | 61° | — | — |
| 2008 | 56° | 41° | 48° | 4.06" | — |
| 2007 | 38° | 24° | 31° | — | — |
| 2006 | 45° | 31° | 38° | — | — |
| 2005 | 61° | 30° | 45° | — | — |
| 2004 | 54° | 32° | 43° | 0.13" | — |
| 2003 | 72° | 49° | 60° | — | — |
| 2002 | 45° | 39° | 42° | — | — |
| 2001 | 44° | 24° | 34° | — | — |
| 2000 | 49° | 32° | 40° | — | — |
| 1999 | 73° | 40° | 56° | — | — |
| 1998 | 58° | 45° | 51° | 2.08" | — |
| 1997 | 62° | 50° | 56° | 0.13" | — |
| 1996 | 56° | 34° | 45° | — | — |
| 1995 | 76° | 53° | 64° | — | — |
| 1994 | 67° | 42° | 54° | 0.25" | — |
| 1993coldest | 37° | 22° | 29° | — | — |
| 1992 | 67° | 40° | 53° | 1.4" | — |
| 1991 | 55° | 36° | 45° | 0.03" | — |
| 1990 | 53° | 22° | 37° | — | — |
| 1989 | 75° | 23° | 49° | 0.25" | — |
| 1988 | 46° | 21° | 34° | 0.48" | 1.9" |
| 1987 | 70° | 37° | 53° | 1.73" | — |
| 1986 | 63° | 40° | 51° | 0.58" | — |
| 1985 | 57° | 43° | 50° | — | — |
| 1984 | 43° | 34° | 38° | 0.25" | — |
| 1983 | 61° | 40° | 50° | 2.54" | — |
| 1982 | 62° | 42° | 52° | — | — |
| 1980 | 44° | 20° | 32° | — | — |
| 1979 | 66° | 43° | 54° | — | — |
| 1978 | 42° | 21° | 32° | — | — |
| 1977 | 59° | 43° | 51° | 0.33" | — |
| 1976 | 58° | 29° | 43° | — | — |
| 1975 | 50° | 35° | 43° | — | — |
| 1974 | 47° | 27° | 37° | — | — |
| 1973 | 57° | 28° | 43° | — | — |
| 1972 | 61° | 40° | 50° | — | — |
| 1971 | 48° | — | — | — | — |
55 years of data from ST LOUIS ST LOUIS UNIV