Weather on January 20
Saint Louis, MO
55 Years of Data
Avg High
38°F
Avg Low
21°F
Warmest
2006
57°F avg
Coldest
1985
-2°F avg
About This Date
January 20th in Saint Louis, MO typically brings cold winter weather, with average highs around 38°F and lows near 21°F. Over 55 years of records, the warmest January 20th was in 2006 (57°F average), while the coldest was 1985 (-2°F) — a 59°F range across recorded history. Precipitation has occurred on 25% of recorded January 20th dates, with snow falling 11% of the time (heaviest snowfall: 4"). The last decade has been 3.8°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.8°F cooler on this date compared to 20-30 years ago.
Planning for January 20th in Saint Louis, MO? Bundle up with warm layers and protect extremities from the cold.
Cooling Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 39° | 7° | 23° | — | — |
| 2025 | 19° | 5° | 12° | — | — |
| 2024 | 20° | 2° | 11° | — | — |
| 2023 | 37° | 27° | 32° | — | — |
| 2022 | 19° | 7° | 13° | — | — |
| 2021 | 46° | 21° | 34° | — | — |
| 2020 | 24° | 16° | 20° | — | — |
| 2019 | 21° | 10° | 16° | 0.03" | — |
| 2018 | 57° | 36° | 46° | — | — |
| 2017 | 50° | 43° | 46° | 1.12" | — |
| 2016 | 23° | 15° | 19° | 0.38" | 2" |
| 2015 | 56° | 33° | 44° | — | — |
| 2014 | 53° | 23° | 38° | — | — |
| 2013 | 67° | 27° | 47° | — | — |
| 2012 | 41° | 16° | 28° | — | — |
| 2011 | 31° | 20° | 25° | 0.89" | 4" |
| 2010 | 40° | 32° | 36° | 0.43" | — |
| 2009 | 32° | 17° | 25° | — | 0.2" |
| 2008 | 19° | 5° | 12° | — | — |
| 2007 | 43° | 24° | 33° | — | — |
| 2006warmest | 67° | 47° | 57° | — | — |
| 2005 | 46° | 27° | 36° | — | — |
| 2004 | 24° | 14° | 19° | — | — |
| 2003 | 46° | 27° | 36° | — | — |
| 2002 | 35° | 19° | 27° | — | — |
| 2001 | 33° | 20° | 26° | — | — |
| 2000 | 41° | 16° | 28° | — | — |
| 1999 | 53° | 27° | 40° | 0.08" | — |
| 1998 | 28° | 20° | 24° | — | — |
| 1997 | 39° | 25° | 32° | — | — |
| 1996 | 23° | 11° | 17° | 0.41" | 2.6" |
| 1995 | 32° | 23° | 28° | 0.23" | 0.9" |
| 1994 | 18° | 9° | 13° | — | — |
| 1993 | 41° | 30° | 36° | 1.88" | — |
| 1992 | 51° | 33° | 42° | — | — |
| 1991 | 42° | 12° | 27° | 0.08" | — |
| 1990 | 55° | 29° | 42° | 0.51" | — |
| 1989 | 55° | 18° | 36° | — | — |
| 1988 | 39° | 24° | 32° | 0.13" | — |
| 1987 | 31° | 10° | 20° | — | — |
| 1986 | 54° | 40° | 47° | — | — |
| 1985coldest | -1° | -4° | -2° | — | — |
| 1983 | 30° | 26° | 28° | — | — |
| 1982 | 36° | 29° | 32° | — | — |
| 1981 | 45° | 31° | 38° | — | — |
| 1980 | 41° | 31° | 36° | — | — |
| 1979 | 39° | 21° | 30° | 0.81" | — |
| 1978 | 29° | 12° | 20° | — | — |
| 1977 | 33° | -1° | 16° | — | 1" |
| 1976 | 41° | 18° | 29° | 0.08" | — |
| 1975 | 35° | 8° | 22° | — | — |
| 1974 | 55° | 37° | 46° | — | — |
| 1973 | 53° | 28° | 41° | — | — |
| 1972 | 52° | 36° | 44° | — | — |
| 1971 | 24° | 15° | 20° | — | — |
55 years of data from CAHOKIA