Weather in St. Louis: December
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Average day temperature: | 42.8°F |
| Average night temperature: | 35.8°F | |
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Number of sunny days: | 11 days |
| Day length: | 9.5 - 9.7 hours | |
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Number of rainy days: | 2 days |
| Precipitation totals: | 1.5 in. | |
| more information | ||
14 days
forecast
forecast
| St. Louis |
weather in
January
January
| St. Louis |
Air temperature in December, °F
Show year:
2025
2024
2023
The highest day temperature during December of 2025 was 72°F. At the same time the lowest night temperature was 7°F. Daily and nightly averages during December were 41.3°F and 32.1°F.
Sunny, partly cloudy and cloudy days
Number of sunny, partly cloudy and cloudy days in December is almost equal.
Precipitation total in December, in.
Precipitation total value in St. Louis in December is 1.3 in. Other months of the year show relatively similar values.
Wind speed in December, mph
The average wind speed value in December is 8.4 mph
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 4.8.
Best time for vacation in St. Louis
St. Louis on a weather map
Places in USA:
Name
°F
24 Hours Forecast
St. Louis
Local time: 13:16
January 13, tuesday
1500
66°F
E
12 mph
12 mph
1800
55°F
E
9 mph
9 mph
2100
52°F
E
7 mph
7 mph
January 14, wednesday
0000
46°F
E
9 mph
9 mph
0300
45°F
E
11 mph
11 mph
0600
43°F
SE
10 mph
10 mph
0900
39°F
SE
16 mph
16 mph
1200
37°F
SE
19 mph
19 mph
