Weather on February 21
Sioux Falls, SD
55 Years of Data
Avg High
35°F
Avg Low
15°F
Warmest
2017
48°F avg
Coldest
2001
-2°F avg
About This Date
February 21st in Sioux Falls, SD typically brings cold winter weather, with average highs around 35°F and lows near 15°F. Over 56 years of records, the warmest February 21st was in 2017 (48°F average), while the coldest was 2001 (-2°F) — a 50°F range across recorded history. Precipitation has occurred on 25% of recorded February 21st dates, with snow falling 25% of the time (heaviest snowfall: 4.8"). The last decade has been 3.4°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.4°F cooler on this date compared to 20-30 years ago.
Planning for February 21st in Sioux Falls, SD? Bundle up with warm layers and protect extremities from the cold. Check road conditions if traveling, as snow is possible.
Cooling Trend
1.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 25° | 7° | 16° | — | — |
| 2025 | 27° | -3° | 12° | — | — |
| 2024 | 60° | 28° | 44° | — | — |
| 2023 | 22° | 5° | 14° | 0.71" | 3.9" |
| 2022 | 22° | 8° | 15° | 0.03" | 0.2" |
| 2021 | 34° | 13° | 24° | 0.3" | 1.3" |
| 2020 | 42° | 21° | 32° | — | — |
| 2019 | 19° | -5° | 7° | 0.03" | 0.1" |
| 2018 | 20° | -8° | 6° | — | — |
| 2017warmest | 68° | 28° | 48° | — | — |
| 2016 | 39° | 30° | 35° | 0.36" | 0.9" |
| 2015 | 31° | 7° | 19° | — | — |
| 2014 | 31° | 14° | 23° | — | — |
| 2013 | 23° | 11° | 17° | 0.64" | 3.2" |
| 2012 | 37° | 28° | 33° | — | — |
| 2011 | 24° | 6° | 15° | 0.15" | 1.3" |
| 2010 | 25° | 11° | 18° | — | — |
| 2009 | 21° | 6° | 14° | — | — |
| 2008 | 14° | -1° | 7° | — | — |
| 2007 | 46° | 26° | 36° | — | — |
| 2006 | 39° | 11° | 25° | — | — |
| 2005 | 29° | 19° | 24° | — | — |
| 2004 | 39° | 17° | 28° | — | — |
| 2003 | 39° | 13° | 26° | — | — |
| 2002 | 45° | 20° | 32° | — | — |
| 2001coldest | 11° | -14° | -2° | 0.03" | 0.4" |
| 2000 | 63° | 25° | 44° | — | — |
| 1999 | 31° | 10° | 20° | — | — |
| 1998 | 41° | 32° | 37° | — | — |
| 1997 | 31° | 11° | 21° | — | — |
| 1996 | 41° | 26° | 34° | — | — |
| 1995 | 58° | 26° | 42° | — | — |
| 1994 | 21° | 8° | 15° | — | — |
| 1993 | 19° | 11° | 15° | 0.76" | 4.8" |
| 1992 | 32° | 18° | 25° | 0.03" | 0.1" |
| 1991 | 50° | 30° | 40° | — | — |
| 1990 | 44° | 31° | 37° | — | — |
| 1989 | 20° | 1° | 10° | — | — |
| 1988 | 43° | 14° | 28° | 0.05" | 0.5" |
| 1987 | 47° | 23° | 35° | 0.05" | 0.2" |
| 1986 | 26° | 2° | 14° | — | — |
| 1985 | 44° | 27° | 35° | — | — |
| 1984 | 40° | 17° | 28° | — | — |
| 1983 | 37° | 28° | 33° | — | — |
| 1982 | 57° | 26° | 42° | — | — |
| 1981 | 46° | 36° | 41° | — | — |
| 1980 | 35° | 33° | 34° | 0.36" | — |
| 1979 | 23° | 11° | 17° | — | — |
| 1978 | 19° | -10° | 5° | — | — |
| 1977 | 64° | 22° | 43° | — | — |
| 1976 | 31° | 17° | 24° | — | — |
| 1975 | 38° | 24° | 31° | — | — |
| 1974 | 36° | 24° | 30° | 0.18" | 0.6" |
| 1973 | 31° | 9° | 20° | — | — |
| 1972 | 33° | 0° | 17° | — | 0.2" |
| 1971 | 21° | 13° | 17° | — | — |
56 years of data from SIOUX FALLS