Weather on September 25
Sioux Falls, SD
55 Years of Data
Avg High
72°F
Avg Low
45°F
Warmest
2008
72°F avg
Coldest
1984
38°F avg
About This Date
September 25th in Sioux Falls, SD typically brings pleasant fall weather, with average highs around 72°F and lows near 45°F — a 27°F daily swing. Over 55 years of records, the warmest September 25th was in 2008 (72°F average), while the coldest was 1984 (38°F) — a 34°F range across recorded history. Rain or other precipitation has occurred on about 27% of September 25th dates historically, with the wettest September 25th recording 2.26" of rain. The last decade has been 4.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.6°F warmer on this date compared to 20-30 years ago.
Planning for September 25th in Sioux Falls, SD? Great weather for outdoor activities.
Warming Trend
1.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 86° | 47° | 66° | — | — |
| 2024 | 84° | 47° | 65° | — | — |
| 2023 | 75° | 54° | 64° | — | — |
| 2022 | 74° | 50° | 62° | — | — |
| 2021 | 80° | 39° | 60° | — | — |
| 2020 | 81° | 56° | 68° | — | — |
| 2019 | 62° | 53° | 58° | — | — |
| 2018 | 63° | 47° | 55° | 1.02" | — |
| 2017 | 56° | 52° | 54° | 1.57" | — |
| 2016 | 69° | 48° | 59° | — | — |
| 2015 | 80° | 60° | 70° | — | — |
| 2014 | 82° | 55° | 69° | — | — |
| 2013 | 78° | 49° | 63° | — | — |
| 2012 | 79° | 40° | 59° | — | — |
| 2011 | 68° | 37° | 53° | — | — |
| 2010 | 68° | 45° | 56° | 0.18" | — |
| 2009 | 64° | 49° | 56° | 0.33" | — |
| 2008warmest | 83° | 62° | 72° | 0.84" | — |
| 2007 | 63° | 46° | 54° | — | — |
| 2006 | 71° | 42° | 57° | — | — |
| 2005 | 66° | 52° | 59° | 1.88" | — |
| 2004 | 72° | 40° | 56° | — | — |
| 2003 | 62° | 32° | 47° | — | — |
| 2002 | 59° | 46° | 53° | 0.43" | — |
| 2001 | 65° | 36° | 50° | — | — |
| 2000 | 66° | 28° | 47° | — | — |
| 1999 | 86° | 54° | 70° | — | — |
| 1998 | 85° | 48° | 66° | 0.13" | — |
| 1997 | 83° | 48° | 65° | — | — |
| 1996 | 55° | 49° | 52° | 2.26" | — |
| 1995 | 72° | 39° | 55° | — | — |
| 1994 | 75° | 46° | 61° | — | — |
| 1993 | 72° | 42° | 57° | — | — |
| 1992 | 75° | 52° | 63° | 0.2" | — |
| 1991 | 65° | 40° | 52° | — | — |
| 1990 | 89° | 49° | 69° | — | — |
| 1989 | 68° | 39° | 54° | — | — |
| 1988 | 79° | 42° | 60° | — | — |
| 1987 | 81° | 46° | 63° | — | — |
| 1986 | 78° | 57° | 68° | — | — |
| 1985 | 53° | 34° | 43° | 0.05" | — |
| 1984coldest | 46° | 30° | 38° | 0.03" | — |
| 1983 | 88° | 44° | 66° | — | — |
| 1982 | 61° | 36° | 48° | — | — |
| 1981 | 78° | 64° | 71° | — | — |
| 1980 | 57° | 33° | 45° | — | — |
| 1979 | 83° | 45° | 64° | — | — |
| 1978 | 76° | 44° | 60° | — | — |
| 1977 | 69° | 49° | 59° | — | — |
| 1976 | 74° | 48° | 61° | — | — |
| 1975 | 67° | 30° | 48° | — | — |
| 1974 | 83° | 38° | 60° | — | — |
| 1973 | 74° | 47° | 60° | 1.14" | — |
| 1972 | 52° | 44° | 48° | 2.16" | — |
| 1971 | 60° | 49° | 54° | 0.66" | — |
55 years of data from SIOUX FALLS