Weather on April 20
Sioux Falls, SD
55 Years of Data
Avg High
60°F
Avg Low
38°F
Warmest
1980
69°F avg
Coldest
2013
28°F avg
About This Date
April 20th in Sioux Falls, SD typically brings mild spring weather, with average highs around 60°F and lows near 38°F. Over 55 years of records, the warmest April 20th was in 1980 (69°F average), while the coldest was 2013 (28°F) — a 41°F range across recorded history. Precipitation has occurred on 45% of recorded April 20th dates, with snow falling 9% of the time (heaviest snowfall: 1.3"). The last decade has been 3.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.3°F cooler on this date compared to 20-30 years ago.
Planning for April 20th in Sioux Falls, SD? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Cooling Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 59° | 39° | 49° | — | — |
| 2024 | 50° | 34° | 42° | — | — |
| 2023 | 50° | 35° | 43° | 0.38" | 0.1" |
| 2022 | 61° | 31° | 46° | 0.2" | — |
| 2021 | 47° | 22° | 35° | 0.03" | 0.1" |
| 2020 | 69° | 33° | 51° | — | — |
| 2019 | 84° | 47° | 65° | — | — |
| 2018 | 49° | 28° | 39° | — | — |
| 2017 | 51° | 41° | 46° | — | — |
| 2016 | 58° | 45° | 51° | 1.93" | — |
| 2015 | 54° | 32° | 43° | — | — |
| 2014 | 80° | 44° | 62° | — | — |
| 2013coldest | 39° | 16° | 28° | 0.08" | 0.1" |
| 2012 | 59° | 33° | 46° | — | — |
| 2011 | 47° | 28° | 37° | 0.03" | — |
| 2010 | 69° | 41° | 55° | — | — |
| 2009 | 55° | 38° | 46° | — | — |
| 2008 | 70° | 45° | 57° | — | — |
| 2007 | 77° | 47° | 62° | — | — |
| 2006 | 52° | 43° | 47° | 0.25" | — |
| 2005 | 60° | 52° | 56° | 0.1" | — |
| 2004 | 53° | 45° | 49° | 1.22" | — |
| 2003 | 46° | 40° | 43° | 0.1" | — |
| 2002 | 49° | 33° | 41° | 0.71" | 1.3" |
| 2001 | 71° | 48° | 60° | 0.61" | — |
| 2000 | 56° | 35° | 45° | — | — |
| 1999 | 72° | 43° | 57° | — | — |
| 1998 | 61° | 38° | 49° | 0.08" | — |
| 1997 | 62° | 42° | 52° | 0.28" | — |
| 1996 | 60° | 35° | 48° | — | — |
| 1995 | 45° | 37° | 41° | 0.99" | — |
| 1994 | 60° | 40° | 50° | 0.08" | — |
| 1993 | 54° | 33° | 43° | — | — |
| 1992 | 41° | 31° | 36° | 1.73" | 0.7" |
| 1991 | 57° | 28° | 43° | — | — |
| 1990 | 81° | 41° | 61° | — | — |
| 1989 | 83° | 45° | 64° | — | — |
| 1988 | 59° | 41° | 50° | 0.1" | — |
| 1987 | 66° | 44° | 55° | — | — |
| 1986 | 55° | 38° | 46° | 0.08" | — |
| 1985 | 72° | 53° | 62° | 0.79" | — |
| 1984 | 62° | 39° | 51° | — | — |
| 1983 | 61° | 32° | 46° | — | — |
| 1982 | 49° | 28° | 38° | — | — |
| 1981 | 57° | 33° | 45° | — | — |
| 1980warmest | 93° | 44° | 69° | — | — |
| 1979 | 59° | 39° | 49° | 0.05" | — |
| 1978 | 43° | 26° | 34° | — | — |
| 1977 | 52° | 44° | 48° | 2.9" | — |
| 1976 | 61° | 45° | 53° | — | — |
| 1975 | 56° | 26° | 41° | — | — |
| 1974 | 68° | 57° | 63° | 0.15" | — |
| 1973 | 70° | 45° | 57° | — | — |
| 1972 | 60° | 28° | 44° | 1.3" | — |
| 1971 | 79° | 51° | 65° | 1.73" | — |
55 years of data from SIOUX FALLS