Weather on January 18
Saint Louis, MO
55 Years of Data
Avg High
39°F
Avg Low
20°F
Warmest
1973
54°F avg
Coldest
1977
-3°F avg
About This Date
January 18th in Saint Louis, MO typically brings cold winter weather, with average highs around 39°F and lows near 20°F. Over 55 years of records, the warmest January 18th was in 1973 (54°F average), while the coldest was 1977 (-3°F) — a 57°F range across recorded history. Precipitation has occurred on 22% of recorded January 18th dates, with snow falling 2% of the time (heaviest snowfall: 2.6"). The last decade has been 6.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 6.0°F warmer on this date compared to 20-30 years ago.
Planning for January 18th in Saint Louis, MO? Bundle up with warm layers and protect extremities from the cold.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 33° | 10° | 22° | — | — |
| 2025 | 43° | 24° | 34° | — | — |
| 2024 | 42° | 24° | 33° | — | — |
| 2023 | 43° | 38° | 40° | 2.29" | — |
| 2022 | 54° | 28° | 41° | — | — |
| 2021 | 44° | 27° | 36° | — | — |
| 2020 | 51° | 25° | 38° | 2.18" | — |
| 2019 | 38° | 35° | 36° | 0.46" | — |
| 2018 | 48° | 22° | 35° | — | — |
| 2017 | 48° | 36° | 42° | — | — |
| 2016 | 17° | 4° | 10° | 0.03" | — |
| 2015 | 61° | 36° | 48° | — | — |
| 2014 | 29° | 16° | 22° | — | — |
| 2013 | 44° | 25° | 34° | — | — |
| 2012 | 45° | 14° | 29° | — | — |
| 2011 | 42° | 26° | 34° | 0.15" | — |
| 2010 | 44° | 31° | 37° | — | — |
| 2009 | 47° | 20° | 33° | — | — |
| 2008 | 40° | 15° | 27° | — | — |
| 2007 | 34° | 20° | 27° | — | — |
| 2006 | 35° | 25° | 30° | — | — |
| 2005 | 22° | 6° | 14° | — | — |
| 2004 | 44° | 26° | 35° | 1.6" | — |
| 2003 | 23° | 10° | 17° | — | — |
| 2002 | 35° | 19° | 27° | — | — |
| 2001 | 35° | 22° | 28° | — | — |
| 2000 | 34° | 30° | 32° | 0.69" | — |
| 1999 | 47° | 34° | 40° | 0.81" | — |
| 1998 | 36° | 26° | 31° | — | — |
| 1997 | 22° | 2° | 12° | — | — |
| 1996 | 65° | 11° | 38° | 1.7" | — |
| 1995 | 44° | 33° | 39° | 0.38" | — |
| 1994 | 7° | -8° | 0° | — | — |
| 1993 | 24° | 17° | 21° | — | — |
| 1992 | 30° | 17° | 24° | — | — |
| 1991 | 44° | 28° | 36° | — | — |
| 1990 | 55° | 28° | 42° | — | — |
| 1989 | 59° | 25° | 42° | — | — |
| 1988 | 40° | 32° | 36° | — | — |
| 1987 | 27° | 20° | 23° | 0.38" | 2.6" |
| 1986 | 57° | 33° | 45° | — | — |
| 1985 | 41° | 17° | 29° | — | — |
| 1983 | 41° | 15° | 28° | — | — |
| 1982 | 10° | -11° | 0° | — | — |
| 1981 | 43° | 11° | 27° | — | — |
| 1980 | 52° | 23° | 37° | — | — |
| 1979 | 40° | 14° | 27° | — | — |
| 1978 | 23° | 6° | 15° | — | — |
| 1977coldest | 12° | -19° | -3° | — | — |
| 1976 | 22° | 3° | 12° | — | — |
| 1975 | 51° | 26° | 39° | 0.53" | — |
| 1974 | 55° | 28° | 42° | — | — |
| 1973warmest | 65° | 43° | 54° | — | — |
| 1972 | 50° | 33° | 42° | — | — |
| 1971 | 27° | 21° | 24° | — | — |
55 years of data from CAHOKIA