Weather on February 21
Saint Louis, MO
55 Years of Data
About This Date
February 21st in Saint Louis, MO typically brings cool winter weather, with average highs around 52°F and lows near 30°F. Over 54 years of records, the warmest February 21st was in 2017 (70°F average), while the coldest was 2025 (15°F) — a 55°F range across recorded history. Precipitation has occurred on 31% of recorded February 21st dates, with snow falling 2% of the time. The last decade has been 2.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.3°F cooler on this date compared to 20-30 years ago.
Planning for February 21st 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 | 43° | 29° | 36° | — | — |
| 2025coldest | 29° | 1° | 15° | — | — |
| 2024 | 73° | 34° | 53° | — | — |
| 2023 | 57° | 38° | 47° | — | — |
| 2022 | 65° | 38° | 51° | — | — |
| 2021 | 45° | 24° | 35° | 0.03" | — |
| 2020 | 42° | 16° | 29° | — | — |
| 2019 | 45° | 26° | 36° | — | — |
| 2018 | 67° | 28° | 47° | 4.95" | — |
| 2017warmest | 80° | 59° | 70° | 0.25" | — |
| 2016 | 59° | 40° | 49° | — | — |
| 2015 | 30° | 16° | 23° | 0.51" | 0.5" |
| 2014 | 71° | 34° | 52° | 0.2" | — |
| 2013 | 26° | 21° | 24° | — | — |
| 2012 | 52° | 29° | 40° | 0.2" | — |
| 2011 | 73° | 42° | 58° | 0.15" | — |
| 2010 | 58° | 37° | 47° | 0.56" | — |
| 2009 | 46° | 22° | 34° | 0.03" | — |
| 2008 | 23° | 15° | 19° | — | — |
| 2007 | 59° | 25° | 42° | — | — |
| 2006 | 35° | 22° | 28° | — | — |
| 2005 | 70° | 40° | 55° | — | — |
| 2004 | 68° | 36° | 52° | — | — |
| 2003 | 47° | 26° | 36° | — | — |
| 2002 | 50° | 37° | 44° | 0.03" | — |
| 2001 | 53° | 25° | 39° | — | — |
| 2000 | 53° | 28° | 41° | — | — |
| 1999 | 38° | 26° | 32° | — | — |
| 1998 | 46° | 38° | 42° | — | — |
| 1997 | 65° | 46° | 55° | 2.16" | — |
| 1996 | 67° | 38° | 52° | — | — |
| 1995 | 58° | 29° | 43° | — | — |
| 1994 | 46° | 34° | 40° | — | — |
| 1993 | 46° | 34° | 40° | 0.1" | — |
| 1992 | 65° | 37° | 51° | — | — |
| 1991 | 71° | 38° | 54° | — | — |
| 1990 | 61° | 46° | 53° | — | — |
| 1989 | 38° | 18° | 28° | 0.13" | — |
| 1988 | 40° | 29° | 34° | — | — |
| 1987 | 51° | 20° | 35° | — | — |
| 1986 | 32° | 26° | 29° | — | — |
| 1985 | 58° | 44° | 51° | 1.55" | — |
| 1983 | 72° | 40° | 56° | — | — |
| 1982 | 61° | 34° | 47° | — | — |
| 1980 | 48° | 35° | 42° | 0.03" | — |
| 1979 | 43° | 19° | 31° | 0.81" | — |
| 1978 | 31° | 19° | 25° | — | — |
| 1977 | 42° | 18° | 30° | — | — |
| 1976 | 66° | 48° | 57° | 0.81" | — |
| 1975 | 55° | 30° | 43° | — | — |
| 1974 | 52° | 28° | 40° | — | — |
| 1973 | 48° | 18° | 33° | — | — |
| 1972 | 52° | 31° | 41° | — | — |
| 1971 | 43° | 35° | 39° | — | — |
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.