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Petaluma, California Climate Averages

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Petaluma Monthly Climate Averages

January
February
March
April
May
June
July
August
September
October
November
December
Hi 58°F Lo 44°F Hi 60°F Lo 44°F Hi 61°F Lo 45°F Hi 65°F Lo 48°F Hi 70°F Lo 51°F Hi 76°F Lo 55°F Hi 78°F Lo 56°F Hi 78°F Lo 57°F Hi 79°F Lo 58°F Hi 73°F Lo 55°F Hi 64°F Lo 48°F Hi 57°F Lo 44°F
6 mph 7 mph 7 mph 8 mph 8 mph 8 mph 6 mph 6 mph 6 mph 5 mph 5 mph 6 mph
5.2 in 4.7 in 4.4 in 1.4 in 0.7 in 0.2 in 0 in 0 in 0.1 in 1.6 in 2.6 in 5 in
75% 75% 77% 73% 71% 67% 68% 69% 65% 63% 67% 74%
37% 34% 39% 28% 23% 15% 11% 10% 12% 18% 27% 39%
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 24 27 29 29 31 31 30 29 26 24
6 6 7 3 2 1 0 0 0 2 4 7
0 0 0 0 0 0 0 0 0 0 0 0
0 0 1 0 0 0 0 0 1 0 0 1
3 3 4 5 5 5 5 5 5 4 3 3
216 211 203 252 291 318 347 348 329 308 257 210
January
February
March
April
May
June
July
August
September
October
November
December
Hi 15°C Lo 7°C Hi 15°C Lo 7°C Hi 16°C Lo 7°C Hi 19°C Lo 9°C Hi 21°C Lo 11°C Hi 24°C Lo 13°C Hi 25°C Lo 13°C Hi 26°C Lo 14°C Hi 26°C Lo 14°C Hi 23°C Lo 13°C Hi 18°C Lo 9°C Hi 14°C Lo 7°C
9 km/h 11 km/h 11 km/h 13 km/h 13 km/h 12 km/h 10 km/h 9 km/h 9 km/h 8 km/h 8 km/h 9 km/h
131 mm 120 mm 113 mm 34 mm 17 mm 6 mm 1 mm 0 mm 4 mm 41 mm 66 mm 126 mm
75% 75% 77% 73% 71% 67% 68% 69% 65% 63% 67% 74%
37% 34% 39% 28% 23% 15% 11% 10% 12% 18% 27% 39%
1020 mb 1018 mb 1018 mb 1017 mb 1015 mb 1013 mb 1013 mb 1013 mb 1013 mb 1015 mb 1018 mb 1019 mb
25 23 24 27 29 29 31 31 30 29 26 24
6 6 7 3 2 1 0 0 0 2 4 7
0 0 0 0 0 0 0 0 0 0 0 0
0 0 1 0 0 0 0 0 1 0 0 1
3 3 4 5 5 5 5 5 5 4 3 3
216 211 203 252 291 318 347 348 329 308 257 210
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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