Willamette National Forest Weather in December

Thinking of visiting Willamette National Forest in December? Expect low temperatures reaching 4°C (39°F) during the day, dropping to -3°C (27°F) at night, and be prepared for the wettest month of the year.

Rainfall in Willamette National Forest in December

Willamette National Forest is in the rainy season in December, with rain on around 23 days and an average of 443 mm (17 in). The rain this month falls heavily when it arrives, so waterproofs are worth keeping handy.

Temperature in Willamette National Forest in December

In December, Willamette National Forest sees low temperatures, with highs of 4°C (39°F). Nights drop to around -3°C (27°F). The month of December belongs to the winter season. Cold conditions tend to persist from morning through evening, so be prepared for winter weather. At -3°C (27°F) overnight, frost and ice are likely outside. Indoors, consider packing an extra blanket if you're unsure about the heating. The coldest month of the year calls for plenty of warm layers. Be sure to pack your winter gear.

If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Willamette National Forest. Our weather planner can help you explore destinations with more pleasant weather conditions.