The highest day temperature in January 2024 was 73°F. The lowest night temperature was 11°F. The average values for day and night temperatures during January were 39.6°F и 33.1°F respectivly.

The average sea surface temperature in January 2024 for Washington was 40.5°F. The maximum and minimum values were 34.6°F and 45.6°F respectively.

You can expect various weather conditions during January. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in January for Washington is 2.0 in. It makes january one of the least rainy months of the year.

The average wind speed in January is 8.3 mph. It makes January one of the most windy months of the year for Washington.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Washington in January is 5.4 hours.