Weather on December 9
Saint Louis, MO
55 Years of Data
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.
| 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" | — |
Saint Louis, MO Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Saint Louis, MO Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Saint Louis, MO Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Saint Louis, MO
Saint Louis, MO has no months that meet our "pleasant" threshold — every season has tradeoffs.