Weather on December 9
Sioux Falls, SD
55 Years of Data
Avg High
32°F
Avg Low
12°F
Warmest
2020
46°F avg
Coldest
1977
-10°F avg
About This Date
December 9th in Sioux Falls, SD typically brings cold winter weather, with average highs around 32°F and lows near 12°F. Over 55 years of records, the warmest December 9th was in 2020 (46°F average), while the coldest was 1977 (-10°F) — a 56°F range across recorded history. Precipitation has occurred on 20% of recorded December 9th dates, with snow falling 22% of the time (heaviest snowfall: 8"). The last decade has been 2.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.8°F warmer on this date compared to 20-30 years ago.
Planning for December 9th in Sioux Falls, SD? Bundle up with warm layers and protect extremities from the cold. Check road conditions if traveling, as snow is possible.
Warming Trend
2.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 45° | 18° | 31° | 0.05" | — |
| 2024 | 37° | 21° | 29° | — | — |
| 2023 | 38° | 24° | 31° | — | — |
| 2022 | 33° | 30° | 32° | 0.1" | 0.7" |
| 2021 | 51° | 29° | 40° | — | — |
| 2020warmest | 58° | 35° | 46° | — | — |
| 2019 | 29° | 7° | 18° | 0.1" | 0.9" |
| 2018 | 26° | 13° | 20° | — | — |
| 2017 | 29° | 23° | 26° | — | — |
| 2016 | 16° | -1° | 8° | 0.08" | 0.4" |
| 2015 | 50° | 27° | 39° | — | — |
| 2014 | 28° | 20° | 24° | — | — |
| 2013 | 21° | -10° | 6° | — | — |
| 2012 | 33° | 1° | 17° | 0.2" | 1.1" |
| 2011 | 19° | 2° | 10° | — | — |
| 2010 | 48° | 21° | 35° | — | — |
| 2009 | 7° | -4° | 1° | — | 0.1" |
| 2008 | 23° | 1° | 12° | 0.05" | 0.4" |
| 2007 | 15° | 7° | 11° | 0.03" | 0.3" |
| 2006 | 56° | 14° | 35° | — | — |
| 2005 | 24° | -6° | 9° | — | — |
| 2004 | 36° | 24° | 30° | — | — |
| 2003 | 28° | 13° | 20° | 1.35" | 8" |
| 2002 | 42° | 18° | 30° | — | — |
| 2001 | 46° | 27° | 36° | — | — |
| 2000 | 34° | 9° | 21° | — | — |
| 1999 | 43° | 13° | 28° | — | — |
| 1998 | 43° | 18° | 30° | — | — |
| 1997 | 29° | 26° | 27° | 0.1" | 0.7" |
| 1996 | 32° | 13° | 22° | — | — |
| 1995 | 7° | -7° | 0° | — | — |
| 1994 | 22° | -3° | 10° | — | — |
| 1993 | 41° | 27° | 34° | — | — |
| 1992 | 38° | 28° | 33° | — | — |
| 1991 | 37° | 30° | 34° | — | — |
| 1990 | 59° | 20° | 39° | — | — |
| 1989 | 34° | 21° | 27° | — | — |
| 1988 | 24° | 10° | 17° | — | 0.1" |
| 1987 | 38° | 20° | 29° | — | — |
| 1986 | 24° | 4° | 14° | — | — |
| 1985 | 22° | 13° | 17° | 0.03" | 0.2" |
| 1984 | 57° | 26° | 42° | — | — |
| 1983 | 19° | -7° | 6° | — | — |
| 1982 | 25° | 2° | 13° | — | — |
| 1981 | 26° | 19° | 23° | — | — |
| 1980 | 31° | 7° | 19° | — | — |
| 1979 | 45° | 25° | 35° | — | — |
| 1978 | 5° | -12° | -3° | — | — |
| 1977coldest | -6° | -14° | -10° | — | — |
| 1976 | 32° | 12° | 22° | — | — |
| 1975 | 35° | 24° | 30° | — | — |
| 1974 | 43° | 7° | 25° | — | — |
| 1973 | 36° | 10° | 23° | 0.03" | 0.1" |
| 1972 | 3° | -14° | -5° | — | — |
| 1971 | 33° | -9° | 12° | — | — |
55 years of data from SIOUX FALLS