Smithfield Weather in December

The climate in Smithfield during December can be summarized as cool and a little damp.

December is in the winter in Smithfield and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cool 12°C (54°F), whilst at night -0°C (31°F) is normal.

On average December is the 4th driest month of the year in Smithfield with around 84mm 3.3 inches of rain making it a a little damp 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 5.8 hours of sunshine per day.

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 Smithfield in December 2025.