The highest day temperature in January 2026 was 52°F. The lowest night temperature was 16°F. The average values for day and night temperatures during January were 41.5°F и 33.1°F respectivly.

The average sea surface temperature in January 2026 for Sierra Nevada was 60.8°F. The maximum and minimum values were 58.2°F and 62.0°F respectively.

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

Precipitation total in January for Sierra Nevada is 2.0 in.

The average wind speed in January is 5.1 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 Sierra Nevada in January is 7.4 hours.