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Merced September Weather

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

Typical Merced September Weather 1991–2020
Average daily high	90.6 °F
Average daily low	56.6 °F
Average monthly precipitation	0.0 inches
Daily chance of precipitation	1.9%

Merced September Weather Records 1899–2024
Highest temperature	116 °F	September 6, 2022
Lowest temperature	32 °F	September 22, 1906
Highest daily low	75 °F	September 10, 2022
Lowest daily high	63 °F	September 23, 1904
Hottest average high temperature	95.9 °F	1899
Coldest average high temperature	77.8 °F	1911
Most daily precipitation	1.3 inches	September 23, 1904
Most monthly precipitation	1.8 inches	1904

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	93.4	59.1	106	45
September 2	93.1	58.9	109	47
September 3	92.9	58.7	108	44
September 4	92.7	58.5	107	44
September 5	92.6	58.4	108	41
September 6	92.5	58.3	116	42
September 7	92.3	58.0	111	42
September 8	92.1	57.9	110	41
September 9	91.9	57.7	106	44
September 10	91.8	57.5	106	45
September 11	91.5	57.3	106	44
September 12	91.3	57.2	104	45
September 13	91.1	57.0	103	45
September 14	90.9	56.8	103	41
September 15	90.7	56.7	103	40
September 16	90.5	56.5	105	45
September 17	90.1	56.3	104	41
September 18	89.8	56.1	108	35
September 19	89.5	55.8	110	40
September 20	89.0	55.6	104	41
September 21	88.6	55.3	105	42
September 22	88.2	55.0	105	32
September 23	87.9	54.8	104	44
September 24	87.6	54.6	105	42
September 25	87.3	54.4	102	40
September 26	87.0	54.1	104	38
September 27	86.7	53.9	103	40
September 28	86.3	53.6	100	40
September 29	86.1	53.4	102	35
September 30	85.9	53.2	99	37

Weather Station Details

Years	Station	Coordinates
1998–2024	Merced Municipal Airport	location
1899–1998	Merced	location