Weather on September 22
Sioux Falls, SD
55 Years of Data
Avg High
68°F
Avg Low
45°F
Warmest
2017
79°F avg
Coldest
1971
40°F avg
About This Date
September 22nd in Sioux Falls, SD typically brings mild fall weather, with average highs around 68°F and lows near 45°F. Over 55 years of records, the warmest September 22nd was in 2017 (79°F average), while the coldest was 1971 (40°F) — a 39°F range across recorded history. Rain or other precipitation has occurred on about 27% of September 22nd dates historically, with the wettest September 22nd recording 2.26" of rain. The last decade has been 10.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 10.0°F warmer on this date compared to 20-30 years ago.
Planning for September 22nd in Sioux Falls, SD? Great weather for outdoor activities.
Warming Trend
2.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 84° | 56° | 70° | 0.2" | — |
| 2024 | 72° | 46° | 59° | — | — |
| 2023 | 73° | 60° | 67° | — | — |
| 2022 | 66° | 42° | 54° | — | — |
| 2021 | 71° | 41° | 56° | — | — |
| 2020 | 89° | 57° | 73° | — | — |
| 2019 | 72° | 53° | 62° | 0.03" | — |
| 2018 | 70° | 45° | 57° | — | — |
| 2017warmest | 91° | 67° | 79° | — | — |
| 2016 | 78° | 62° | 70° | 0.48" | — |
| 2015 | 80° | 61° | 70° | — | — |
| 2014 | 74° | 43° | 58° | — | — |
| 2013 | 83° | 51° | 67° | — | — |
| 2012 | 60° | 32° | 46° | — | — |
| 2011 | 59° | 37° | 48° | — | — |
| 2010 | 69° | 49° | 59° | 1.85" | — |
| 2009 | 63° | 52° | 57° | — | — |
| 2008 | 81° | 65° | 73° | 0.05" | — |
| 2007 | 80° | 43° | 61° | — | — |
| 2006 | 57° | 52° | 54° | 0.86" | — |
| 2005 | 70° | 46° | 58° | 0.03" | — |
| 2004 | 70° | 56° | 63° | 0.84" | — |
| 2003 | 63° | 40° | 51° | 0.03" | — |
| 2002 | 64° | 38° | 51° | — | — |
| 2001 | 74° | 49° | 61° | — | — |
| 2000 | 53° | 44° | 49° | 1.12" | — |
| 1999 | 82° | 38° | 60° | — | — |
| 1998 | 66° | 34° | 50° | — | — |
| 1997 | 53° | 48° | 51° | 2.26" | — |
| 1996 | 66° | 40° | 53° | — | — |
| 1995 | 55° | 27° | 41° | — | — |
| 1994 | 59° | 47° | 53° | 0.1" | — |
| 1993 | 59° | 42° | 51° | — | — |
| 1992 | 62° | 37° | 50° | — | — |
| 1991 | 64° | 39° | 52° | — | — |
| 1990 | 55° | 35° | 45° | — | — |
| 1989 | 60° | 34° | 47° | — | — |
| 1988 | 69° | 45° | 57° | — | — |
| 1987 | 70° | 41° | 55° | — | — |
| 1986 | 67° | 51° | 59° | — | — |
| 1985 | 60° | 49° | 54° | 0.41" | — |
| 1984 | 70° | 46° | 58° | 0.05" | — |
| 1983 | 55° | 30° | 43° | — | — |
| 1982 | 70° | 46° | 58° | — | — |
| 1981 | 72° | 45° | 58° | — | — |
| 1980 | 63° | 39° | 51° | — | — |
| 1979 | 72° | 44° | 58° | — | — |
| 1978 | 72° | 39° | 55° | — | — |
| 1977 | 65° | 52° | 58° | — | — |
| 1976 | 81° | 35° | 58° | — | — |
| 1975 | 69° | 36° | 52° | — | — |
| 1974 | 63° | 24° | 43° | — | — |
| 1973 | 78° | 45° | 61° | — | — |
| 1972 | 70° | 42° | 56° | — | — |
| 1971coldest | 47° | 33° | 40° | 1.32" | — |
55 years of data from SIOUX FALLS