Historical Weather in St. Louis, MO
See 55+ years of weather history for any date in St. Louis going back to 1970.
Part of Missouri weather history
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Today in St. Louis Weather HistorySee records, averages, and 55+ years of data for today's date
→Monthly Climate Averages
Historical temperature and precipitation averages for St. Louis, MO, based on 55+ years of weather data.
Warmest MonthJulyAvg High: 89°F / Low: 69°F
Coldest MonthJanuaryAvg High: 40°F / Low: 22°F
Jan
40°/ 22°
💧 7.2"
❄️ 1.6"
Feb
45°/ 26°
💧 7.7"
❄️ 1.7"
Mar
56°/ 36°
💧 8.8"
❄️ 1.8"
Apr
68°/ 46°
💧 9.6"
❄️ 1.8"
May
77°/ 56°
💧 9.2"
Jun
85°/ 65°
💧 10.9"
Jul
89°/ 69°
💧 12.2"
Aug
88°/ 68°
💧 11.0"
Sep
81°/ 59°
💧 11.3"
Oct
69°/ 47°
💧 8.5"
Nov
56°/ 37°
💧 10.5"
❄️ 2.2"
Dec
44°/ 27°
💧 8.3"
❄️ 1.8"
Temperatures in Fahrenheit. Precipitation and snowfall in inches.
St. Louis Temperature Records
- Record High: The hottest temperature ever recorded in St. Louis, MO is 108°F, set on June 28, 2012.
- Record Low: The coldest temperature ever recorded in St. Louis, MO is -20°F, set on December 23, 1989.
- Data Coverage: Based on 30 years of data from NOAA weather station: CAHOKIA ST LOUIS DWTN AP.
All-Time Record High
108°F
June 28, 2012
All-Time Record Low
-20°F
December 23, 1989
Monthly Temperature Records in St. Louis
| Month | Record High | Record Low |
|---|---|---|
| January | 77°F(2008) | -18°F(1985) |
| February | 86°F(2024) | -18°F(1996) |
| March | 89°F(1985) | -8°F(1978) |
| April | 93°F(1989) | 20°F(1982) |
| May | 98°F(2012) | 30°F(1992) |
| June | 108°F(2012) | 41°F(1993) |
| July | 108°F(2012) | 50°F(1972) |
| August | 107°F(1984) | 43°F(1992) |
| September | 104°F(1984) | 29°F(1995) |
| October | 97°F(2006) | 22°F(1980) |
| November | 85°F(1987) | -2°F(1991) |
| December | 78°F(2025) | -20°F(1989) |
St. Louis Snow RecordsSee the top 10 snowiest days ever recorded
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