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 · Missouri temperature records
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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, MO Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Avg high Avg low
St. Louis, MO Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Rain (in) Snow (in)
St. 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.
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Best Time to Visit St. Louis, MO
St. Louis, MO has no months that meet our "pleasant" threshold — every season has tradeoffs.
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
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Dec
Pleasant (65-82°F, ≤2.5" rain) Mild Less ideal
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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Holiday Weather in St. Louis
Weather Analysis & Trends
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