Weather on September 19
Sioux Falls, SD
55 Years of Data
Avg High
74°F
Avg Low
50°F
Warmest
1972
79°F avg
Coldest
1991
41°F avg
About This Date
September 19th in Sioux Falls, SD typically brings pleasant fall weather, with average highs around 74°F and lows near 50°F. Over 55 years of records, the warmest September 19th was in 1972 (79°F average), while the coldest was 1991 (41°F) — a 38°F range across recorded history. Rain or other precipitation has occurred on about 33% of September 19th dates historically, with the wettest September 19th recording 6.76" of rain. The last decade has been 7.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 7.5°F warmer on this date compared to 20-30 years ago.
Planning for September 19th in Sioux Falls, SD? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
2.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 69° | 55° | 62° | 0.03" | — |
| 2024 | 84° | 57° | 71° | — | — |
| 2023 | 89° | 52° | 70° | — | — |
| 2022 | 87° | 53° | 70° | — | — |
| 2021 | 89° | 70° | 79° | — | — |
| 2020 | 78° | 53° | 66° | — | — |
| 2019 | 83° | 56° | 69° | — | — |
| 2018 | 71° | 61° | 66° | 6.76" | — |
| 2017 | 82° | 59° | 71° | 1.02" | — |
| 2016 | 83° | 54° | 68° | — | — |
| 2015 | 66° | 41° | 54° | — | — |
| 2014 | 89° | 61° | 75° | — | — |
| 2013 | 76° | 51° | 63° | 0.18" | — |
| 2012 | 75° | 50° | 63° | — | — |
| 2011 | 79° | 40° | 59° | — | — |
| 2010 | 60° | 49° | 54° | — | — |
| 2009 | 79° | 53° | 66° | — | — |
| 2008 | 85° | 60° | 72° | — | — |
| 2007 | 77° | 45° | 61° | — | — |
| 2006 | 56° | 33° | 44° | — | — |
| 2005 | 76° | 56° | 66° | — | — |
| 2004 | 88° | 69° | 78° | — | — |
| 2003 | 66° | 35° | 51° | — | — |
| 2002 | 67° | 54° | 60° | — | — |
| 2001 | 73° | 48° | 61° | — | — |
| 2000 | 70° | 52° | 61° | 0.08" | — |
| 1999 | 66° | 41° | 54° | 0.18" | — |
| 1998 | 86° | 58° | 72° | — | — |
| 1997 | 66° | 48° | 57° | — | — |
| 1996 | 60° | 54° | 57° | 1.63" | — |
| 1995 | 58° | 42° | 50° | 0.03" | — |
| 1994 | 88° | 51° | 69° | — | — |
| 1993 | 60° | 53° | 57° | 3.18" | — |
| 1992 | 69° | 43° | 56° | — | — |
| 1991coldest | 56° | 27° | 41° | — | — |
| 1990 | 70° | 45° | 57° | — | — |
| 1989 | 70° | 64° | 67° | 1.93" | — |
| 1988 | 63° | 47° | 55° | 0.51" | — |
| 1987 | 64° | 49° | 56° | 0.15" | — |
| 1986 | 65° | 47° | 56° | 1.02" | — |
| 1985 | 82° | 51° | 67° | 0.15" | — |
| 1984 | 95° | 51° | 73° | — | — |
| 1983 | 57° | 43° | 50° | 0.03" | — |
| 1982 | 62° | 39° | 51° | — | — |
| 1981 | 87° | 42° | 65° | — | — |
| 1980 | 85° | 50° | 67° | — | — |
| 1979 | 73° | 42° | 58° | — | — |
| 1978 | 75° | 51° | 63° | 0.03" | — |
| 1977 | 60° | 44° | 52° | — | — |
| 1976 | 75° | 46° | 61° | 0.2" | — |
| 1975 | 53° | 47° | 50° | 0.05" | — |
| 1974 | 67° | 45° | 56° | — | — |
| 1973 | 74° | 45° | 59° | — | — |
| 1972warmest | 92° | 66° | 79° | — | — |
| 1971 | 68° | 32° | 50° | — | — |
55 years of data from SIOUX FALLS