Washington Weather in January

January in Washington typically sees daytime highs of 8°C (46°F) and nighttime lows of 3°C (37°F). Rainfall is also possible this month, so it's worth packing an umbrella. It falls within the winter season.

Rainfall in Washington in January

You can expect rain on roughly 18 days based on historical data, averaging 61 mm (2.4 in) for the month. With rain spread across many days but low totals, showers are typically short and light rather than heavy.

Temperature in Washington in January

Temperatures in Washington in January top out at 8°C (46°F) and drop to 3°C (37°F) overnight. January is a notable month of the winter season. Even at the warmest part of the day, temperatures stay low. Dressing warmly from the start is the sensible approach. Nights fall to 3°C (37°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep. It's generally the coldest month of the year, making it essential to pack warm layers and winter accessories.

Sunshine in Washington in January

This month is characterized by fewer sunny days, with about 63 hours of sunshine. It's great for those who appreciate cooler, less sunny days.

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