Weather on March 18
Saint Louis, MO
55 Years of Data
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.
| 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° | — | — | — | — |
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.