Weather in St. Louis, Missouri, United States in December
In an average December, St. Louis sees a daily high around 42°F and a low around 26°F, based on 1981–2026 of local climate records.
| Average high | 42°F |
|---|---|
| Typical high range | 29°F to 56°F |
| Average low | 26°F |
| Typical low range | 13°F to 37°F |
| Average daily precipitation | 0.10 in |
December records
The most extreme December on record for each metric, across 1981–2026. For rainfall, the wettest and driest are by total December accumulation.
High
Highest
74°F
2025-12-28
Lowest
-7°F
1983-12-24
Low
Highest
62°F
1982-12-02
Lowest
-16°F
1989-12-22
Feels-like
Highest
70°F
1982-12-02
Lowest
-41°F
1983-12-24
Humidity
Highest
15.1 g/m³
1982-12-02
Lowest
0.6 g/m³
1983-12-24
Wind
Highest
35 mph
2012-12-20
Lowest
4 mph
1986-12-27
Precip
Wettest
9.29 in
1982
Driest
0.73 in
2025
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