Weather on September 7
Sioux Falls, SD
55 Years of Data
Avg High
78°F
Avg Low
54°F
Warmest
1978
82°F avg
Coldest
1986
51°F avg
About This Date
September 7th in Sioux Falls, SD typically brings pleasant fall weather, with average highs around 78°F and lows near 54°F. Over 55 years of records, the warmest September 7th was in 1978 (82°F average), while the coldest was 1986 (51°F) — a 31°F range across recorded history. Rain or other precipitation has occurred on about 33% of September 7th dates historically, with the wettest September 7th recording 3.35" of rain. The last decade has been 4.4°F cooler on this date compared to 20-30 years ago.
The last decade has been 4.4°F cooler on this date compared to 20-30 years ago.
Planning for September 7th in Sioux Falls, SD? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Cooling Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 72° | 35° | 53° | — | — |
| 2024 | 75° | 44° | 60° | — | — |
| 2023 | 74° | 44° | 59° | 0.05" | — |
| 2022 | 89° | 61° | 75° | — | — |
| 2021 | 80° | 59° | 70° | — | — |
| 2020 | 63° | 48° | 55° | 0.03" | — |
| 2019 | 68° | 61° | 64° | — | — |
| 2018 | 74° | 52° | 63° | — | — |
| 2017 | 78° | 46° | 62° | — | — |
| 2016 | 78° | 67° | 72° | 1.02" | — |
| 2015 | 77° | 53° | 65° | 0.03" | — |
| 2014 | 75° | 53° | 64° | — | — |
| 2013 | 90° | 67° | 78° | — | — |
| 2012 | 72° | 49° | 60° | — | — |
| 2011 | 77° | 53° | 65° | — | — |
| 2010 | 67° | 47° | 57° | — | — |
| 2009 | 78° | 54° | 66° | — | — |
| 2008 | 64° | 47° | 55° | — | — |
| 2007 | 75° | 52° | 63° | — | — |
| 2006 | 85° | 57° | 71° | — | — |
| 2005 | 78° | 57° | 68° | 1.07" | — |
| 2004 | 70° | 44° | 57° | — | — |
| 2003 | 88° | 65° | 76° | — | — |
| 2002 | 91° | 71° | 81° | — | — |
| 2001 | 73° | 58° | 65° | 0.46" | — |
| 2000 | 75° | 51° | 63° | 0.43" | — |
| 1999 | 82° | 56° | 69° | — | — |
| 1998 | 75° | 50° | 63° | — | — |
| 1997 | 82° | 63° | 72° | 0.05" | — |
| 1996 | 67° | 60° | 63° | 1.52" | — |
| 1995 | 62° | 44° | 53° | — | — |
| 1994 | 83° | 55° | 69° | — | — |
| 1993 | 66° | 50° | 58° | — | — |
| 1992 | 65° | 42° | 53° | 1.45" | — |
| 1991 | 86° | 68° | 77° | 1.12" | — |
| 1990 | 85° | 57° | 71° | — | — |
| 1989 | 71° | 55° | 63° | 3.35" | — |
| 1988 | 80° | 57° | 69° | — | — |
| 1987 | 81° | 49° | 65° | — | — |
| 1986coldest | 65° | 37° | 51° | — | — |
| 1985 | 87° | 64° | 76° | — | — |
| 1984 | 80° | 45° | 62° | 0.3" | — |
| 1983 | 86° | 46° | 66° | — | — |
| 1982 | 73° | 59° | 66° | — | — |
| 1981 | 77° | 56° | 66° | — | — |
| 1980 | 90° | 63° | 76° | — | — |
| 1979 | 70° | 46° | 58° | 0.41" | — |
| 1978warmest | 94° | 71° | 82° | — | — |
| 1977 | 84° | 62° | 73° | — | — |
| 1976 | 95° | 62° | 79° | 0.46" | — |
| 1975 | 71° | 46° | 59° | — | — |
| 1974 | 86° | 42° | 64° | 0.51" | — |
| 1973 | 79° | 47° | 63° | 0.08" | — |
| 1972 | 71° | 47° | 59° | — | — |
| 1971 | 100° | 51° | 76° | 0.33" | — |
55 years of data from SIOUX FALLS