Weather on December 9
Saint Louis, MO
55 Years of Data
Avg High
44°F
Avg Low
27°F
Warmest
1991
53°F avg
Coldest
2005
14°F avg
About This Date
December 9th in Saint Louis, MO typically brings chilly winter weather, with average highs around 44°F and lows near 27°F. Over 53 years of records, the warmest December 9th was in 1991 (53°F average), while the coldest was 2005 (14°F) — a 39°F range across recorded history. Precipitation has occurred on 38% of recorded December 9th dates, with snow falling 8% of the time (heaviest snowfall: 3.6"). The last decade has been 6.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 6.6°F warmer on this date compared to 20-30 years ago.
Planning for December 9th in Saint Louis, MO? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
2.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 55° | 31° | 43° | — | — |
| 2024 | 56° | 43° | 49° | — | — |
| 2023 | 61° | 40° | 50° | — | — |
| 2022 | 56° | 36° | 46° | 0.25" | — |
| 2021 | 63° | 36° | 49° | — | — |
| 2020 | 67° | 31° | 49° | — | — |
| 2019 | 55° | 28° | 42° | 0.08" | — |
| 2018 | 38° | 17° | 28° | — | — |
| 2017 | 40° | 23° | 31° | — | — |
| 2016 | 30° | 16° | 23° | — | — |
| 2015 | 62° | 44° | 53° | — | — |
| 2014 | 48° | 33° | 41° | — | — |
| 2013 | 28° | 22° | 25° | 0.03" | — |
| 2012 | 48° | 43° | 45° | 0.43" | — |
| 2011 | 45° | 27° | 36° | — | — |
| 2010 | 34° | 16° | 25° | — | — |
| 2009 | 42° | 26° | 34° | 1.65" | — |
| 2008 | 54° | 32° | 43° | 0.79" | — |
| 2007 | 35° | 31° | 33° | 1.57" | — |
| 2006 | 34° | 12° | 23° | — | — |
| 2005coldest | 25° | 4° | 14° | 0.61" | 3.6" |
| 2004 | 45° | 31° | 38° | — | — |
| 2003 | 53° | 42° | 48° | 0.3" | — |
| 2002 | 43° | 23° | 33° | — | — |
| 2001 | 49° | 25° | 37° | — | — |
| 2000 | 37° | 24° | 31° | — | — |
| 1999 | 60° | 36° | 48° | — | — |
| 1998 | 45° | 24° | 34° | — | — |
| 1997 | 30° | 29° | 29° | 0.25" | 0.9" |
| 1996 | 42° | 21° | 32° | — | — |
| 1995 | 30° | 2° | 16° | — | — |
| 1994 | 40° | 35° | 37° | 0.33" | — |
| 1993 | 59° | 39° | 49° | — | — |
| 1992 | 37° | 27° | 32° | 0.71" | 0.6" |
| 1991warmest | 66° | 40° | 53° | — | — |
| 1990 | 63° | 31° | 47° | — | — |
| 1989 | 42° | 21° | 32° | — | — |
| 1988 | 39° | 24° | 32° | — | — |
| 1987 | 59° | 29° | 44° | — | — |
| 1986 | 47° | 17° | 32° | 0.3" | — |
| 1985 | 40° | 32° | 36° | 0.56" | — |
| 1982 | 43° | 22° | 32° | — | — |
| 1981 | 49° | 29° | 39° | — | — |
| 1980 | 38° | 35° | 36° | 0.43" | — |
| 1979 | 39° | 27° | 33° | — | — |
| 1978 | 30° | 15° | 23° | 0.2" | — |
| 1977 | 36° | 3° | 19° | — | — |
| 1976 | 33° | 12° | 23° | — | — |
| 1975 | 36° | 30° | 33° | 0.33" | — |
| 1974 | 28° | 10° | 19° | — | — |
| 1973 | 37° | 20° | 28° | 0.08" | 0.3" |
| 1972 | 31° | 19° | 25° | 0.05" | — |
| 1971 | 54° | 40° | 47° | 0.94" | — |
53 years of data from ST LOUIS ST LOUIS UNIV