Gillette Weather in December

What's the weather like in Gillette (Wyoming) in December 2024?

The climate in Gillette during December can be summarized as cold and dry.

December is in the winter in Gillette and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a freezing 2°C (35°F), whilst at night -11°C (12°F) is normal.

Gillette weather averages (imperial / metric)
Daytime temperature	1.5°C 34.7°F
Nightly temperature	-11.3°C 11.7°F
Average temperature	-4.9°C 23.2°F
Daily sunshine	5.6 hrs
Avg rainfall	15 mm 0.6 ins
Rainy days	9 days
Sea temperature	8.9°C 48.1°F
Humidity	66%
Windspeed	19.4kph 12 mph

On average December is the 2nd driest month of the year in Gillette with around 15mm 0.6 inches of rain making it a dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.6 hours of sunshine per day.

December temperatures in Gillette

Gillette average temperature in December

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 Gillette in December 2024.