Weather on December 18
Saint Louis, MO
55 Years of Data
Avg High
41°F
Avg Low
24°F
Warmest
2002
54°F avg
Coldest
2000
9°F avg
About This Date
December 18th in Saint Louis, MO typically brings chilly winter weather, with average highs around 41°F and lows near 24°F. Over 54 years of records, the warmest December 18th was in 2002 (54°F average), while the coldest was 2000 (9°F) — a 45°F range across recorded history. Precipitation has occurred on 20% of recorded December 18th dates, with snow falling 2% of the time. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for December 18th in Saint Louis, MO? Bring layers as temperatures can vary throughout the day.
Warming Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 58° | 27° | 42° | 0.86" | — |
| 2024 | 46° | 29° | 38° | 0.03" | — |
| 2023 | 39° | 26° | 33° | — | — |
| 2022 | 34° | 20° | 27° | — | — |
| 2021 | 39° | 30° | 35° | 0.64" | — |
| 2020 | 42° | 25° | 34° | — | — |
| 2019 | 32° | 15° | 24° | — | — |
| 2018 | 50° | 26° | 38° | — | — |
| 2017 | 55° | 46° | 51° | — | — |
| 2016 | 18° | 5° | 12° | — | — |
| 2015 | 36° | 28° | 32° | — | — |
| 2014 | 39° | 29° | 34° | — | — |
| 2013 | 43° | 26° | 34° | — | — |
| 2012 | 42° | 34° | 38° | — | — |
| 2011 | 48° | 24° | 36° | — | — |
| 2010 | 32° | 17° | 25° | — | — |
| 2009 | 54° | 23° | 38° | — | — |
| 2008 | 30° | 18° | 24° | — | — |
| 2007 | 36° | 12° | 24° | — | — |
| 2006 | 64° | 42° | 53° | — | — |
| 2005 | 42° | 20° | 31° | — | — |
| 2004 | 44° | 25° | 34° | — | — |
| 2003 | 42° | 32° | 37° | 0.15" | — |
| 2002warmest | 62° | 46° | 54° | 0.76" | — |
| 2001 | 48° | 28° | 38° | 0.3" | — |
| 2000coldest | 16° | 2° | 9° | — | — |
| 1999 | 55° | 31° | 43° | — | — |
| 1998 | 45° | 28° | 36° | — | — |
| 1997 | 51° | 26° | 39° | — | — |
| 1996 | 27° | 13° | 20° | 0.08" | 0.4" |
| 1995 | 44° | 36° | 40° | 1.27" | — |
| 1994 | 55° | 26° | 41° | — | — |
| 1993 | 50° | 35° | 43° | — | — |
| 1992 | 40° | 30° | 35° | — | — |
| 1991 | 41° | 24° | 33° | — | — |
| 1990 | 46° | 30° | 38° | 0.51" | — |
| 1989 | 23° | 9° | 16° | — | — |
| 1988 | 60° | 35° | 48° | — | — |
| 1987 | 34° | 29° | 31° | 0.03" | — |
| 1986 | 40° | 19° | 29° | — | — |
| 1985 | 22° | 7° | 14° | — | — |
| 1984 | 45° | 28° | 36° | 0.3" | — |
| 1982 | 45° | 28° | 36° | — | — |
| 1981 | 23° | 2° | 12° | — | — |
| 1980 | 46° | 32° | 39° | — | — |
| 1979 | 25° | 9° | 17° | — | — |
| 1978 | 47° | 33° | 40° | — | — |
| 1977 | 55° | 35° | 45° | — | — |
| 1976 | 58° | 26° | 42° | — | — |
| 1975 | 22° | 8° | 15° | — | — |
| 1974 | 34° | 15° | 24° | — | — |
| 1973 | 28° | 13° | 20° | — | — |
| 1972 | 39° | 16° | 27° | — | — |
| 1971 | 46° | 17° | 32° | — | — |
54 years of data from ST LOUIS ST LOUIS UNIV