Whittier Weather in December

December in Whittier sees daytime temperatures around 11°C (52°F) and lows of -1°C (30°F) at night. As the wettest month of the year, keep in mind that snow/rainfall is at its highest.

Rainfall in Whittier in December

The month brings the heaviest rain of the year, often in intense bursts. Make sure to have a poncho to stay dry during the showers. You can expect snow/rain on roughly 14 days based on historical data, averaging 166 mm (6.5 in) for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Whittier in December

Daytime highs in Whittier in December reach 11°C (52°F), with nights around -1°C (30°F). December marks the winter season. Even at the warmest part of the day, temperatures stay low. Dressing warmly from the start is the sensible approach. With lows of -1°C (30°F), nights are freezing. Packing a spare blanket is worth considering if you're staying somewhere that might not be fully heated.

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