Weather on December 31
Saint Louis, MO
55 Years of Data
About This Date
December 31st in Saint Louis, MO typically brings chilly winter weather, with average highs around 43°F and lows near 27°F. Over 54 years of records, the warmest December 31st was in 2004 (56°F average), while the coldest was 2017 (5°F) — a 51°F range across recorded history. Precipitation has occurred on 31% of recorded December 31st dates, with snow falling 11% of the time (heaviest snowfall: 1.2"). The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
Planning for December 31st 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 | 40° | 24° | 32° | — | — |
| 2024 | 52° | 34° | 43° | 0.28" | — |
| 2023 | 40° | 35° | 37° | — | — |
| 2022 | 50° | 33° | 42° | — | — |
| 2021 | 67° | 41° | 54° | 0.74" | — |
| 2020 | 34° | 25° | 30° | — | — |
| 2019 | 41° | 34° | 37° | — | — |
| 2018 | 50° | 40° | 45° | 2.95" | — |
| 2017coldest | 15° | -6° | 5° | — | — |
| 2016 | 50° | 38° | 44° | — | — |
| 2015 | 36° | 31° | 33° | — | — |
| 2014 | 29° | 13° | 21° | — | — |
| 2013 | 42° | 22° | 32° | — | — |
| 2012 | 38° | 32° | 35° | — | 0.2" |
| 2011 | 58° | 29° | 43° | — | — |
| 2010 | 58° | 49° | 53° | 0.1" | — |
| 2009 | 35° | 29° | 32° | 0.08" | 0.2" |
| 2008 | 67° | 22° | 44° | — | — |
| 2007 | 47° | 22° | 34° | — | — |
| 2006 | 57° | 49° | 53° | 1.3" | — |
| 2005 | 42° | 32° | 37° | 0.25" | — |
| 2004warmest | 64° | 48° | 56° | — | — |
| 2003 | 55° | 38° | 46° | — | — |
| 2002 | 69° | 34° | 51° | 0.53" | — |
| 2001 | 28° | 12° | 20° | — | — |
| 2000 | 20° | 13° | 16° | — | — |
| 1999 | 53° | 22° | 37° | — | — |
| 1998 | 19° | 10° | 15° | 0.25" | 1.2" |
| 1997 | 34° | 25° | 29° | 0.13" | 0.5" |
| 1996 | 47° | 36° | 41° | — | — |
| 1995 | 37° | 33° | 35° | 0.25" | 0.3" |
| 1994 | 41° | 35° | 38° | 0.2" | — |
| 1993 | 49° | 24° | 36° | — | — |
| 1992 | 62° | 20° | 41° | 0.36" | — |
| 1991 | 35° | 32° | 34° | — | — |
| 1990 | 17° | 10° | 14° | — | — |
| 1989 | 39° | 24° | 32° | 0.2" | — |
| 1988 | 40° | 30° | 35° | — | — |
| 1987 | 45° | 13° | 29° | — | — |
| 1986 | 40° | 21° | 30° | — | — |
| 1985 | 36° | 17° | 26° | — | — |
| 1984 | 43° | 23° | 33° | 3.84" | — |
| 1982 | 35° | 24° | 30° | — | — |
| 1981 | 43° | 22° | 32° | — | — |
| 1980 | 49° | 33° | 41° | — | — |
| 1979 | 44° | 34° | 39° | — | — |
| 1978 | 32° | 21° | 27° | 2.08" | 0.5" |
| 1977 | 44° | 34° | 39° | — | — |
| 1976 | 23° | -7° | 8° | — | — |
| 1975 | 38° | 34° | 36° | — | — |
| 1974 | 42° | 35° | 39° | 2.39" | — |
| 1973 | 29° | 8° | 18° | — | — |
| 1972 | 53° | 30° | 42° | — | — |
| 1971 | 48° | 35° | 42° | — | — |
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.