Weather on March 20
Sioux Falls, SD
55 Years of Data
Avg High
47°F
Avg Low
25°F
Warmest
2026
57°F avg
Coldest
1974
16°F avg
About This Date
March 20th in Sioux Falls, SD typically brings chilly spring weather, with average highs around 47°F and lows near 25°F. Over 56 years of records, the warmest March 20th was in 2026 (57°F average), while the coldest was 1974 (16°F) — a 41°F range across recorded history. Precipitation has occurred on 21% of recorded March 20th dates, with snow falling 13% of the time (heaviest snowfall: 1.9"). The last decade has been 4.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.5°F warmer on this date compared to 20-30 years ago.
Planning for March 20th in Sioux Falls, SD? Bring layers as temperatures can vary throughout the day.
Warming Trend
1.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026warmest | 78° | 36° | 57° | — | — |
| 2025 | 56° | 21° | 39° | — | — |
| 2024 | 40° | 17° | 29° | — | — |
| 2023 | 36° | 18° | 27° | — | — |
| 2022 | 73° | 27° | 50° | — | — |
| 2021 | 63° | 38° | 50° | — | — |
| 2020 | 29° | 14° | 22° | — | — |
| 2019 | 49° | 31° | 40° | — | — |
| 2018 | 36° | 32° | 34° | 0.38" | 1" |
| 2017 | 58° | 37° | 47° | — | — |
| 2016 | 43° | 20° | 32° | — | — |
| 2015 | 73° | 25° | 49° | — | — |
| 2014 | 57° | 24° | 41° | — | — |
| 2013 | 26° | 7° | 16° | — | — |
| 2012 | 60° | 48° | 54° | — | — |
| 2011 | 61° | 31° | 46° | 0.08" | — |
| 2010 | 38° | 20° | 29° | — | — |
| 2009 | 59° | 37° | 48° | — | — |
| 2008 | 48° | 30° | 39° | — | — |
| 2007 | 48° | 27° | 37° | — | — |
| 2006 | 32° | 28° | 30° | 0.05" | 0.3" |
| 2005 | 35° | 13° | 24° | — | — |
| 2004 | 50° | 24° | 37° | — | — |
| 2003 | 52° | 32° | 42° | — | — |
| 2002 | 36° | 7° | 21° | — | 0.1" |
| 2001 | 48° | 32° | 40° | — | — |
| 2000 | 37° | 31° | 34° | — | — |
| 1999 | 51° | 28° | 40° | — | — |
| 1998 | 42° | 21° | 32° | — | — |
| 1997 | 57° | 28° | 43° | — | — |
| 1996 | 42° | 18° | 30° | — | — |
| 1995 | 43° | 26° | 34° | 0.03" | — |
| 1994 | 44° | 31° | 37° | 0.36" | 0.5" |
| 1993 | 35° | 26° | 31° | — | — |
| 1992 | 45° | 32° | 38° | — | — |
| 1991 | 61° | 40° | 50° | 0.48" | — |
| 1990 | 68° | 32° | 50° | — | — |
| 1989 | 33° | 12° | 23° | — | — |
| 1988 | 54° | 23° | 38° | — | — |
| 1987 | 63° | 45° | 54° | 0.33" | — |
| 1986 | 28° | 5° | 17° | — | — |
| 1985 | 62° | 29° | 45° | — | — |
| 1984 | 36° | 15° | 25° | — | — |
| 1983 | 28° | 20° | 24° | — | — |
| 1982 | 37° | 26° | 32° | 0.08" | 0.4" |
| 1981 | 45° | 11° | 28° | — | — |
| 1980 | 46° | 25° | 35° | — | — |
| 1979 | 47° | 32° | 39° | — | — |
| 1978 | 44° | 32° | 38° | — | — |
| 1977 | 32° | 16° | 24° | 0.23" | 0.8" |
| 1976 | 52° | 28° | 40° | 0.03" | — |
| 1975 | 50° | 33° | 42° | — | — |
| 1974coldest | 27° | 5° | 16° | 0.41" | 1.9" |
| 1973 | 50° | 25° | 37° | — | — |
| 1972 | 54° | 39° | 46° | 0.18" | — |
| 1971 | 36° | 16° | 26° | — | — |
56 years of data from SIOUX FALLS