Weather & Climate at Coast Guard Training Center Petaluma

Petaluma, CA

Summary of the weather and climate in Petaluma, CA:

The average high is 70.6°F and the average low is 45.7°F.
The hottest month is July with a high of 81.9°F.
The coldest month is December with a low of 38.5°F.
Annual rainfall is 26.65 inches; the rainiest month is February (5.32 in).

Source: NOAA climate normals.

Temperatures through the year

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Bars span each month's average low to average high (30°F – 90°F scale).

Monthly averages

Month	High (°F)	Low (°F)	Rain (in)	Snow (in)
January	56.9	39.2	4.93	0
February	61.6	40.9	5.32	0
March	65.1	42.3	3.79	0
April	68.7	43.8	1.63	0
May	72.9	47.3	0.87	0
June	78.6	50.6	0.17	0
July	81.9	52.3	0.01	0
August	81.9	52.6	0.06	0
September	81.7	51.2	0.21	0
October	75.8	47.6	1.43	0
November	65.1	42.2	3.29	0
December	57	38.5	4.94	0