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Petaluma July Weather

Averages and records for weather in Petaluma, California in the month of July.

Typical Petaluma July Weather 1991–2020
Average daily high	80.9 °F
Average daily low	52.7 °F
Average monthly precipitation	0.0 inches
Average monthly snow	none
Daily chance of precipitation	0.44%
Daily chance of snow	0%

Petaluma July Weather Records 1893–2024
Highest temperature	110 °F	July 14, 1972
Lowest temperature	39 °F	July 9, 1933
Highest daily low	70 °F	July 25, 1920
Lowest daily high	62 °F	July 4, 1922
Hottest average high temperature	88.1 °F	1984
Coldest average high temperature	77.3 °F	1999
Most daily precipitation	0.9 inches	July 8, 1974
Most monthly precipitation	1.0 inches	1974
Most daily snow	none	-
Most monthly snow	none	-

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
July 1	80.7	51.8	102	39
July 2	80.6	51.8	105	40
July 3	80.6	51.9	103	40
July 4	80.6	52.0	105	44
July 5	80.7	52.1	99	42
July 6	80.7	52.2	103	41
July 7	80.8	52.4	105	42
July 8	80.9	52.5	101	41
July 9	80.9	52.6	106	39
July 10	81.0	52.6	109	40
July 11	81.1	52.7	108	42
July 12	81.1	52.7	100	40
July 13	81.2	52.7	108	40
July 14	81.2	52.7	110	42
July 15	81.1	52.7	107	43
July 16	81.0	52.7	97	44
July 17	81.0	52.8	107	44
July 18	81.1	52.8	103	46
July 19	81.1	52.8	101	44
July 20	81.1	52.8	101	43
July 21	81.0	52.9	100	42
July 22	81.0	53.0	101	43
July 23	80.9	53.0	106	40
July 24	80.8	53.0	100	41
July 25	80.8	53.1	102	41
July 26	80.9	53.1	105	42
July 27	80.9	53.1	101	40
July 28	80.9	53.1	104	42
July 29	81.0	53.1	100	40
July 30	81.1	53.1	104	40
July 31	81.2	53.1	101	39

Weather Station Details

Years	Station	Coordinates
1893–2024	Petaluma Airport	location