< Previous Month Next Month >

Barstow September Weather

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

Typical Barstow September Weather 1991–2020
Average daily high	94.5 °F
Average daily low	63.1 °F
Average monthly precipitation	0.3 inches
Average monthly snow	none
Daily chance of precipitation	2.9%
Daily chance of snow	0%

Barstow September Weather Records 1903–2024
Highest temperature	113 °F	September 12, 1944
Lowest temperature	32 °F	September 26, 1948
Highest daily low	82 °F	September 9, 2022
Lowest daily high	65 °F	September 17, 1963
Hottest average high temperature	100.4 °F	1951
Coldest average high temperature	85.8 °F	1986
Most daily precipitation	2.3 inches	September 3, 1997
Most monthly precipitation	3.5 inches	1997
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	98.8	67.3	110	49
September 2	98.5	67.0	112	36
September 3	98.2	66.8	111	46
September 4	97.9	66.5	109	47
September 5	97.7	66.2	108	50
September 6	97.4	65.9	110	49
September 7	97.1	65.7	112	48
September 8	96.8	65.4	109	49
September 9	96.4	65.0	108	46
September 10	96.1	64.7	108	48
September 11	95.8	64.4	110	43
September 12	95.5	64.1	113	43
September 13	95.2	63.7	110	43
September 14	94.9	63.4	109	42
September 15	94.6	63.1	108	44
September 16	94.3	62.8	107	39
September 17	94.0	62.5	105	43
September 18	93.7	62.2	105	47
September 19	93.3	61.8	104	43
September 20	92.9	61.5	105	45
September 21	92.5	61.1	105	38
September 22	92.0	60.6	106	43
September 23	91.5	60.1	106	41
September 24	91.2	59.7	106	45
September 25	90.9	59.5	104	41
September 26	90.5	59.1	103	32
September 27	90.0	58.7	104	37
September 28	89.6	58.4	102	40
September 29	89.2	58.0	101	40
September 30	88.8	57.7	100	40

Weather Station Details

Years	Station	Coordinates
1980–2024	Barstow	location
1903–1980	Barstow	location