The highest day temperature in January 2025 was 34°F. The lowest night temperature was -31°F. The average values for day and night temperatures during January were 18.1°F и 14.8°F respectivly.

The average sea surface temperature in January 2025 for Girdwood was 35.3°F. The maximum and minimum values were 35.0°F and 36.2°F respectively.

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

Precipitation total in January for Girdwood is 2.7 in.

The average wind speed in January is 6.1 mph. This value is relatively stable throughout the year.

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 Girdwood in January is 2.4 hours.