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McAllen August Weather

Averages and records for weather in McAllen, Texas in the month of August.

Typical McAllen August Weather 1991–2020
Average daily high	98.9 °F
Average daily low	77.7 °F
Average monthly precipitation	1.8 inches
Daily chance of precipitation	15.3%

McAllen August Weather Records 1941–2024
Highest temperature	108 °F	August 10, 1988
Lowest temperature	64 °F	August 14, 1967
Highest daily low	88 °F	August 21, 1945
Lowest daily high	77 °F	August 27, 1979
Hottest average high temperature	103.2 °F	2019
Coldest average high temperature	91.7 °F	1975
Most daily precipitation	9.4 inches	August 10, 1980
Most monthly precipitation	9.5 inches	1980

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
August 1	99.2	77.9	106	70
August 2	99.2	77.9	104	70
August 3	99.2	77.9	105	69
August 4	99.3	77.9	105	68
August 5	99.3	77.9	105	71
August 6	99.3	77.9	106	68
August 7	99.2	77.9	105	70
August 8	99.2	77.9	106	70
August 9	99.2	77.9	106	68
August 10	99.2	77.9	108	69
August 11	99.2	77.9	107	68
August 12	99.1	77.9	106	68
August 13	99.1	77.8	106	64
August 14	99.0	77.8	106	64
August 15	99.0	77.7	106	69
August 16	98.9	77.7	105	69
August 17	98.8	77.7	105	69
August 18	98.7	77.6	104	68
August 19	98.6	77.6	106	69
August 20	98.5	77.6	105	69
August 21	98.4	77.5	103	70
August 22	98.2	77.4	105	64
August 23	98.1	77.4	106	66
August 24	97.9	77.3	105	67
August 25	97.7	77.2	105	67
August 26	97.5	77.1	104	69
August 27	97.3	77.0	105	68
August 28	97.1	76.8	107	67
August 29	96.9	76.7	107	64
August 30	96.8	76.7	107	69
August 31	96.6	76.6	104	69

Weather Station Details

Years	Station	Coordinates
1961–2024	McAllen Miller International Airport	location
1941–1960	McAllen	location