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Sonora September Weather

Averages and records for weather in Sonora, California in the month of September.

Typical Sonora September Weather 1991–2020
Average daily high	87.8 °F
Average daily low	51.3 °F
Average monthly precipitation	0.2 inches
Average monthly snow	none
Daily chance of precipitation	3.1%
Daily chance of snow	0%

Sonora September Weather Records 1903–2024
Highest temperature	110 °F	September 7, 2022
Lowest temperature	35 °F	September 12, 1985
Highest daily low	72 °F	September 20, 1939
Lowest daily high	55 °F	September 18, 1989
Hottest average high temperature	93.7 °F	1991
Coldest average high temperature	71.6 °F	1920
Most daily precipitation	4.3 inches	September 19, 1959
Most monthly precipitation	4.6 inches	1959
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
September 1	90.5	53.9	108	41
September 2	90.2	53.7	105	40
September 3	89.9	53.5	108	45
September 4	89.7	53.3	104	44
September 5	89.4	53.1	107	42
September 6	89.2	53.0	108	43
September 7	89.1	52.8	110	42
September 8	89.0	52.7	105	39
September 9	88.7	52.5	106	38
September 10	88.6	52.3	102	38
September 11	88.4	52.0	104	37
September 12	88.1	51.8	104	35
September 13	87.9	51.6	104	39
September 14	87.8	51.5	105	38
September 15	87.6	51.4	106	36
September 16	87.5	51.2	105	40
September 17	87.3	51.1	102	38
September 18	87.0	50.8	103	39
September 19	86.7	50.5	100	37
September 20	86.3	50.3	102	38
September 21	85.8	50.0	100	38
September 22	85.3	49.7	101	37
September 23	84.9	49.4	104	37
September 24	84.6	49.1	100	36
September 25	84.4	48.9	100	35
September 26	84.0	48.6	100	37
September 27	83.7	48.3	104	36
September 28	83.3	48.1	102	37
September 29	83.0	47.8	102	36
September 30	82.7	47.5	98	36

Weather Station Details

Years	Station	Coordinates
1903–2024	Sonora	location