Weather on September 27
Sioux Falls, SD
55 Years of Data
Avg High
72°F
Avg Low
46°F
Warmest
1979
71°F avg
Coldest
1976
45°F avg
About This Date
September 27th in Sioux Falls, SD typically brings pleasant fall weather, with average highs around 72°F and lows near 46°F — a 26°F daily swing. Over 55 years of records, the warmest September 27th was in 1979 (71°F average), while the coldest was 1976 (45°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 15% of September 27th dates historically, with the wettest September 27th recording 0.97" of rain. The last decade has been 5.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.4°F warmer on this date compared to 20-30 years ago.
Planning for September 27th in Sioux Falls, SD? Great weather for outdoor activities.
Warming Trend
1.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 78° | 49° | 63° | — | — |
| 2024 | 90° | 50° | 70° | — | — |
| 2023 | 75° | 54° | 64° | — | — |
| 2022 | 72° | 43° | 57° | — | — |
| 2021 | 86° | 53° | 70° | — | — |
| 2020 | 71° | 51° | 61° | 0.1" | — |
| 2019 | 69° | 49° | 59° | — | — |
| 2018 | 65° | 48° | 56° | — | — |
| 2017 | 70° | 41° | 55° | — | — |
| 2016 | 75° | 44° | 60° | — | — |
| 2015 | 82° | 60° | 71° | — | — |
| 2014 | 81° | 62° | 71° | — | — |
| 2013 | 80° | 60° | 70° | 0.23" | — |
| 2012 | 75° | 32° | 54° | — | — |
| 2011 | 78° | 45° | 61° | — | — |
| 2010 | 76° | 50° | 63° | — | — |
| 2009 | 72° | 49° | 60° | — | — |
| 2008 | 76° | 49° | 62° | — | — |
| 2007 | 75° | 42° | 59° | — | — |
| 2006 | 59° | 41° | 50° | 0.25" | — |
| 2005 | 82° | 53° | 68° | — | — |
| 2004 | 71° | 45° | 58° | — | — |
| 2003 | 58° | 40° | 49° | — | — |
| 2002 | 66° | 32° | 49° | — | — |
| 2001 | 76° | 38° | 57° | — | — |
| 2000 | 75° | 39° | 57° | — | — |
| 1999 | 64° | 37° | 51° | — | — |
| 1998 | 74° | 50° | 62° | — | — |
| 1997 | 80° | 49° | 64° | — | — |
| 1996 | 50° | 43° | 46° | 0.05" | — |
| 1995 | 83° | 41° | 62° | — | — |
| 1994 | 71° | 37° | 54° | — | — |
| 1993 | 69° | 33° | 51° | 0.03" | — |
| 1992 | 74° | 38° | 56° | — | — |
| 1991 | 65° | 43° | 54° | — | — |
| 1990 | 68° | 47° | 57° | — | — |
| 1989 | 76° | 49° | 62° | — | — |
| 1988 | 67° | 49° | 58° | 0.58" | — |
| 1987 | 82° | 56° | 69° | — | — |
| 1986 | 72° | 46° | 59° | — | — |
| 1985 | 62° | 38° | 50° | — | — |
| 1984 | 57° | 34° | 45° | 0.28" | — |
| 1983 | 88° | 54° | 71° | — | — |
| 1982 | 73° | 50° | 62° | — | — |
| 1981 | 65° | 40° | 52° | — | — |
| 1980 | 72° | 38° | 55° | — | — |
| 1979warmest | 84° | 58° | 71° | — | — |
| 1978 | 67° | 42° | 54° | — | — |
| 1977 | 69° | 42° | 56° | — | — |
| 1976coldest | 55° | 35° | 45° | — | — |
| 1975 | 60° | 42° | 51° | 0.97" | — |
| 1974 | 72° | 48° | 60° | — | — |
| 1973 | 68° | 49° | 58° | — | — |
| 1972 | 61° | 43° | 52° | — | — |
| 1971 | 70° | 57° | 63° | — | — |
55 years of data from SIOUX FALLS