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Walnut Creek, California Climate Averages

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Walnut Creek Monthly Climate Averages

January
February
March
April
May
June
July
August
September
October
November
December
Hi 58°F Lo 44°F Hi 61°F Lo 44°F Hi 63°F Lo 46°F Hi 69°F Lo 48°F Hi 74°F Lo 52°F Hi 81°F Lo 56°F Hi 83°F Lo 58°F Hi 84°F Lo 59°F Hi 83°F Lo 59°F Hi 77°F Lo 56°F Hi 65°F Lo 49°F Hi 57°F Lo 45°F
5 mph 5 mph 6 mph 6 mph 7 mph 7 mph 7 mph 7 mph 6 mph 5 mph 4 mph 5 mph
3.8 in 3.2 in 3.5 in 1.2 in 0.5 in 0.2 in 0 in 0 in 0.1 in 1.1 in 1.8 in 3.7 in
71% 70% 72% 66% 63% 58% 58% 60% 56% 55% 60% 69%
34% 32% 36% 25% 20% 12% 8% 8% 10% 16% 25% 36%
30.1 in 30.1 in 30.1 in 30.0 in 30.0 in 29.9 in 29.9 in 29.9 in 29.9 in 30.0 in 30.1 in 30.1 in
25 23 25 27 29 29 31 31 29 29 26 25
6 5 6 3 2 1 0 0 1 2 4 6
0 0 0 0 0 0 0 0 0 0 0 0
0 0 1 0 0 0 0 0 0 0 0 0
3 3 4 5 5 6 5 6 5 4 3 3
224 214 206 258 294 324 355 353 332 314 260 213
January
February
March
April
May
June
July
August
September
October
November
December
Hi 15°C Lo 7°C Hi 16°C Lo 7°C Hi 17°C Lo 8°C Hi 21°C Lo 9°C Hi 23°C Lo 11°C Hi 27°C Lo 13°C Hi 29°C Lo 14°C Hi 29°C Lo 15°C Hi 28°C Lo 15°C Hi 25°C Lo 13°C Hi 18°C Lo 9°C Hi 14°C Lo 7°C
7 km/h 8 km/h 9 km/h 10 km/h 12 km/h 12 km/h 11 km/h 10 km/h 9 km/h 8 km/h 7 km/h 8 km/h
96 mm 80 mm 89 mm 30 mm 14 mm 4 mm 1 mm 0 mm 3 mm 28 mm 45 mm 94 mm
71% 70% 72% 66% 63% 58% 58% 60% 56% 55% 60% 69%
34% 32% 36% 25% 20% 12% 8% 8% 10% 16% 25% 36%
1020 mb 1019 mb 1018 mb 1017 mb 1015 mb 1013 mb 1013 mb 1013 mb 1013 mb 1015 mb 1019 mb 1019 mb
25 23 25 27 29 29 31 31 29 29 26 25
6 5 6 3 2 1 0 0 1 2 4 6
0 0 0 0 0 0 0 0 0 0 0 0
0 0 1 0 0 0 0 0 0 0 0 0
3 3 4 5 5 6 5 6 5 4 3 3
224 214 206 258 294 324 355 353 332 314 260 213
Month
Avg. Temperatures
Avg. Wind Speed
Avg. Precipitation
Average Humidity
Avg. Cloud Cover
Pressure Average
Average Dry Days
Avg. Precip. Days
Avg. Snow Days
Average Fog Days
Average UV Index
Avg. Hours of Sun
Averages are based on historical weather data from the past 10 years.

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