Average Sunshine in California for January





Number of Sunny Days

In the table below, the average number of Sunny Days for a city in California is the total days this month when the sky is mostly clear. This includes the days when cloud covers up to 30% of the sky during daylight hours.

Partly Sunny Days have cloud covering from 40% to 70% of the sky during the daytime.

Total Days With Sun is a sum of the Sunny plus Partly Sunny days. The rest of the days are mainly overcast, with at least 80% cloud cover. All the numbers are annual averages, made from years of weather watching.

Days of sunshine in January
City Sunny
Days
Partly Sunny
Days
Total Days
With Sun
Bakersfield 7 8 15
Bishop 11 8 19
Blue Canyon 9 5 14
Eureka 6 6 12
Fresno 5 7 12
Long Beach 12 8 20
Los Angeles Airport 12 8 20
Los Angeles Downtown 14 8 22
Mount Shasta 9 6 15
Redding 8 5 13
Sacramento 7 6 13
San Diego 12 7 19
San Francisco Airport 9 8 17
Santa Maria 13 7 20
Stockton 5 6 11

Amount of Sun

Here's another way to look at how much sunshine a city gets. The % Sun number measures the percentage of time between sunrise and sunset that sunshine reaches the ground. Again, these amounts are monthly averages based on many years of weather observations.

Percent sunshine for January
City % Sun
Eureka 43
Fresno 47
Los Angeles Downtown 69
Redding 72
Sacramento 48
San Diego 72
San Francisco Downtown 56
Reference

National Climatic Data Center. Comparative Climatic Data.

California Sunshine
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