St. Catharines Weather in December
What's the weather like in St. Catharines (Ontario) in December 2024?
The climate in St. Catharines during December can be summarized as cold and reasonably dry.
December is in the winter in St. Catharines and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a freezing 2°C (36°F), whilst at night -4°C (24°F) is normal.
| Daytime temperature | 2.2°C 36°F |
|---|---|
| Nightly temperature | -4.2°C 24.4°F |
| Average temperature | -1°C 30.2°F |
| Daily sunshine | 2.4 hrs |
| Avg rainfall | 77 mm 3 ins |
| Rainy days | 14 days |
| Sea temperature | 5.3°C 41.5°F |
| Humidity | 80% |
| Windspeed | 18.4kph 11 mph |
On average December is the 4th wettest month of the year in St. Catharines with around 77mm 3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 14 days, although this may vary considerably.
On the flip side this corresponds to an average of 2.4 hours of sunshine per day.
December temperatures in St. Catharines
December rainfall
December hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in St. Catharines in December 2024.
Other monthly averages
Best places to visit in December
St. Catharines weather stats
| Hottest month: | July | 26.7°C 80.1°F |
|---|---|---|
| Driest month: | January | 50mm 2ins |
| Sunniest month: | July | 9.9hrs |
| Coldest month: | January | -0.7°C 30.7°F |
| Wettest month: | September | 84mm 3.3ins |
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