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Baytown September Weather

Averages and records for weather in Baytown, Texas in the month of September.

Typical Baytown September Weather 1991–2020
Average daily high	88.5 °F
Average daily low	70.7 °F
Average monthly precipitation	5.8 inches
Average monthly snow	none
Daily chance of precipitation	32.3%
Daily chance of snow	0%

Baytown September Weather Records 1946–2024
Highest temperature	109 °F	September 5, 2000
Lowest temperature	41 °F	September 29, 1967
Highest daily low	83 °F	September 2, 2020
Lowest daily high	65 °F	September 23, 1995
Hottest average high temperature	94.4 °F	2023
Coldest average high temperature	84.8 °F	1957
Most daily precipitation	7.4 inches	September 10, 1971
Most monthly precipitation	15.8 inches	2018
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	90.8	74.0	107	58
September 2	90.7	73.8	106	59
September 3	90.5	73.7	103	58
September 4	90.4	73.5	106	59
September 5	90.2	73.4	109	59
September 6	90.1	73.2	107	60
September 7	90.0	73.0	98	60
September 8	89.9	72.8	101	58
September 9	89.7	72.5	103	58
September 10	89.5	72.2	103	54
September 11	89.3	71.9	97	62
September 12	89.1	71.7	97	57
September 13	88.9	71.5	96	55
September 14	88.8	71.2	96	58
September 15	88.6	70.9	97	57
September 16	88.4	70.6	97	57
September 17	88.2	70.2	97	54
September 18	88.0	69.8	97	57
September 19	87.9	69.5	97	58
September 20	87.7	69.1	97	55
September 21	87.5	68.9	98	55
September 22	87.3	68.7	102	48
September 23	87.2	68.4	100	50
September 24	87.0	68.0	95	50
September 25	86.8	67.7	94	50
September 26	86.5	67.4	97	49
September 27	86.3	67.0	97	52
September 28	86.1	66.7	97	53
September 29	85.9	66.4	96	41
September 30	85.7	66.1	96	50

Weather Station Details

Years	Station	Coordinates
1946–2024	Baytown	location