Days of Sunshine Per Year in California

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Number of Sunny Days

In the table below, the average number of Sunny Days for a city in California is the total days in a year 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.

Annual days of sunshine
City Sunny
Days
Partly Sunny
Days
Total Days
With Sun
Bakersfield 191   81 272
Bishop 201   89 290
Blue Canyon 174   64 238
Eureka   77 102 179
Fresno 194   73 267
Long Beach 159 119 278
Los Angeles Airport 147 116 263
Los Angeles Downtown 186 106 292
Mount Shasta 164   83 247
Redding 172   77 249
Sacramento 188   77 265
San Diego 146 117 263
San Francisco Airport 160 100 260
Santa Maria 176 110 286
Stockton 184   77 261

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 yearly averages based on many years of weather observations.

Percent sunshine yearly
City % Sun
Eureka 51
Fresno 79
Los Angeles Downtown 73
Redding 88
Sacramento 78
San Diego 68
San Francisco Downtown 66
Reference

National Climatic Data Center. Comparative Climatic Data.

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