Weather on September 28
Sioux Falls, SD
55 Years of Data
Avg High
70°F
Avg Low
43°F
Warmest
1983
75°F avg
Coldest
1985
37°F avg
About This Date
September 28th in Sioux Falls, SD typically brings pleasant fall weather, with average highs around 70°F and lows near 43°F — a 27°F daily swing. Over 55 years of records, the warmest September 28th was in 1983 (75°F average), while the coldest was 1985 (37°F) — a 38°F range across recorded history. Precipitation has occurred on 24% of recorded September 28th dates, with snow falling 2% of the time. The last decade has been 5.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.9°F warmer on this date compared to 20-30 years ago.
Planning for September 28th in Sioux Falls, SD? Great weather for outdoor activities.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 87° | 44° | 66° | — | — |
| 2024 | 91° | 48° | 70° | — | — |
| 2023 | 84° | 53° | 69° | — | — |
| 2022 | 69° | 34° | 51° | — | — |
| 2021 | 89° | 59° | 74° | — | — |
| 2020 | 60° | 44° | 52° | — | — |
| 2019 | 65° | 42° | 53° | — | — |
| 2018 | 57° | 38° | 47° | — | — |
| 2017 | 80° | 43° | 61° | — | — |
| 2016 | 66° | 43° | 54° | — | — |
| 2015 | 74° | 53° | 63° | 0.48" | — |
| 2014 | 81° | 57° | 69° | — | — |
| 2013 | 63° | 50° | 56° | 0.99" | — |
| 2012 | 78° | 37° | 58° | — | — |
| 2011 | 88° | 43° | 65° | — | — |
| 2010 | 74° | 50° | 62° | — | — |
| 2009 | 59° | 42° | 51° | — | — |
| 2008 | 77° | 45° | 61° | 1.02" | — |
| 2007 | 77° | 36° | 56° | — | — |
| 2006 | 57° | 36° | 46° | — | — |
| 2005 | 63° | 36° | 49° | 0.2" | — |
| 2004 | 66° | 34° | 50° | — | — |
| 2003 | 57° | 33° | 45° | — | — |
| 2002 | 56° | 39° | 47° | 0.15" | — |
| 2001 | 77° | 40° | 58° | — | — |
| 2000 | 82° | 42° | 62° | — | — |
| 1999 | 65° | 36° | 50° | — | — |
| 1998 | 83° | 49° | 66° | 0.36" | — |
| 1997 | 72° | 48° | 60° | — | — |
| 1996 | 66° | 36° | 51° | — | — |
| 1995 | 84° | 58° | 71° | 0.03" | — |
| 1994 | 74° | 38° | 56° | — | — |
| 1993 | 59° | 36° | 47° | — | — |
| 1992 | 57° | 29° | 43° | — | — |
| 1991 | 71° | 36° | 53° | — | — |
| 1990 | 69° | 42° | 56° | — | — |
| 1989 | 75° | 50° | 63° | — | — |
| 1988 | 62° | 52° | 57° | 3.84" | — |
| 1987 | 67° | 50° | 58° | — | — |
| 1986 | 71° | 47° | 59° | 0.03" | — |
| 1985coldest | 41° | 33° | 37° | 0.94" | 0.9" |
| 1984 | 50° | 30° | 40° | — | — |
| 1983warmest | 87° | 63° | 75° | — | — |
| 1982 | 78° | 60° | 69° | — | — |
| 1981 | 76° | 39° | 57° | — | — |
| 1980 | 77° | 50° | 64° | — | — |
| 1979 | 72° | 49° | 60° | — | — |
| 1978 | 75° | 48° | 62° | — | — |
| 1977 | 68° | 50° | 59° | — | — |
| 1976 | 61° | 24° | 42° | — | — |
| 1975 | 66° | 40° | 53° | 0.05" | — |
| 1974 | 62° | 30° | 46° | — | — |
| 1973 | 61° | 52° | 56° | 2.59" | — |
| 1972 | 63° | 37° | 50° | 0.03" | — |
| 1971 | 74° | 48° | 61° | — | — |
55 years of data from SIOUX FALLS