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Waco September Weather

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

Typical Waco September Weather 1991–2020
Average daily high	90.8 °F
Average daily low	67.4 °F
Average monthly precipitation	2.9 inches
Average monthly snow	none
Daily chance of precipitation	19.4%
Daily chance of snow	0%

Waco September Weather Records 1883–2024
Highest temperature	111 °F	September 4, 2000
Lowest temperature	39 °F	September 27, 1942
Highest daily low	85 °F	September 17, 1919
Lowest daily high	60 °F	September 19, 1991
Hottest average high temperature	97.9 °F	1977
Coldest average high temperature	79.9 °F	1974
Most daily precipitation	6.0 inches	September 27, 1936
Most monthly precipitation	11.2 inches	1913
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	94.5	71.8	106	58
September 2	94.3	71.6	107	58
September 3	94.1	71.4	108	59
September 4	93.9	71.2	111	56
September 5	93.7	71.0	108	54
September 6	93.5	70.8	104	53
September 7	93.2	70.5	106	51
September 8	92.9	70.1	108	53
September 9	92.6	69.8	104	50
September 10	92.2	69.4	101	52
September 11	92.0	69.1	104	55
September 12	91.7	68.8	106	47
September 13	91.5	68.4	107	53
September 14	91.2	68.0	104	54
September 15	90.9	67.6	100	49
September 16	90.7	67.2	101	51
September 17	90.5	66.9	100	48
September 18	90.3	66.5	100	47
September 19	90.0	66.2	104	45
September 20	89.8	66.0	101	49
September 21	89.5	65.7	101	45
September 22	89.2	65.4	101	40
September 23	88.8	65.0	101	45
September 24	88.5	64.6	102	46
September 25	88.2	64.3	106	43
September 26	87.8	63.9	108	44
September 27	87.5	63.6	106	39
September 28	87.2	63.2	103	44
September 29	87.0	62.9	101	45
September 30	86.7	62.4	100	40

Weather Station Details

Years	Station	Coordinates
1941–2024	Waco Regional Airport	location
1883–1940	Waco	location