The highest day temperature in December 2023 was 59°F. The lowest night temperature was 21°F. The average values for day and night temperatures during December were 41.4°F и 37.4°F respectivly.

The average sea surface temperature in December 2023 for Salem was 45.7°F. The maximum and minimum values were 42.8°F and 48.2°F respectively.

Most of the days in December are gloomy but you can also expect sunny days.

Precipitation total in December for Salem is 1.9 in. It makes december the most rainy month of the year.

The average wind speed in December is 10.4 mph. It makes December one of the most windy months of the year for Salem.

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 Salem in December is 4.5 hours.