The highest day temperature in December 2023 was 51°F. The lowest night temperature was 23°F. The average values for day and night temperatures during December were 39.5°F и 36.7°F respectivly.

The average sea surface temperature in December 2023 for Evanston was 41.2°F. The maximum and minimum values were 37.6°F and 45.0°F respectively.

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

Precipitation total in December for Evanston is 0.9 in. It makes december one of the least rainy months of the year.

The average wind speed in December is 9.7 mph.

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 Evanston in December is 3.8 hours.