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Conroe September Weather

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

Typical Conroe September Weather 1991–2020
Average daily high	89.7 °F
Average daily low	67.5 °F
Average monthly precipitation	3.8 inches
Daily chance of precipitation	30.7%

Conroe September Weather Records 1897–2024
Highest temperature	110 °F	September 4, 2000
Lowest temperature	43 °F	September 27, 1942
Highest daily low	82 °F	September 2, 2020
Lowest daily high	62 °F	September 30, 1985
Hottest average high temperature	95.9 °F	2023
Coldest average high temperature	82.7 °F	1974
Most daily precipitation	11.2 inches	September 19, 2019
Most monthly precipitation	17.7 inches	2019

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	92.5	70.6	107	64
September 2	92.4	70.5	106	56
September 3	92.2	70.4	107	58
September 4	92.0	70.3	110	53
September 5	91.9	70.1	107	54
September 6	91.7	69.9	103	49
September 7	91.6	69.8	104	50
September 8	91.3	69.6	107	51
September 9	91.1	69.4	101	53
September 10	90.9	69.1	102	54
September 11	90.6	68.9	101	54
September 12	90.5	68.6	102	49
September 13	90.2	68.3	103	47
September 14	90.0	68.0	100	49
September 15	89.8	67.7	99	51
September 16	89.6	67.3	98	50
September 17	89.4	66.9	98	51
September 18	89.2	66.6	100	50
September 19	89.0	66.3	102	54
September 20	88.8	66.0	102	53
September 21	88.6	65.7	102	48
September 22	88.4	65.4	101	44
September 23	88.1	65.1	98	44
September 24	87.9	64.8	99	47
September 25	87.6	64.5	100	51
September 26	87.3	64.1	101	46
September 27	87.0	63.8	101	43
September 28	86.8	63.4	99	45
September 29	86.5	63.1	98	45
September 30	86.3	62.7	98	45

Weather Station Details

Years	Station	Coordinates
1999–2024	Conroe Montgomery County Airport	location
1897–1998	Conroe	location