Weather on January 20
Saint Louis, MO
55 Years of Data
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.
| 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° | — | — |
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.