Weather on February 21
Saint Louis, MO
55 Years of Data
Avg High
52°F
Avg Low
30°F
Warmest
2017
70°F avg
Coldest
2025
15°F avg
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° | — | — |
54 years of data from ST LOUIS ST LOUIS UNIV