Ukiah Weather in January

The climate in Ukiah during January can be summarized as cool and very wet.

January is in the winter in Ukiah and is typically the coldest month of the year. Daytime maximum temperatures average around a cool 12°C (54°F), whilst at night 1°C (34°F) is normal.

On average January is the wettest month of the year in Ukiah with around 233mm 9.2 inches of rain making it a very wet time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.

On the flip side this corresponds to an average of 6 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 Ukiah in January 2024.