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McKinney August Weather

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

Typical McKinney August Weather 1991–2020
Average daily high	95.4 °F
Average daily low	72.7 °F
Average monthly precipitation	2.0 inches
Daily chance of precipitation	16.3%

McKinney August Weather Records 1903–2024
Highest temperature	118 °F	August 10, 1936
Lowest temperature	53 °F	August 18, 1989
Highest daily low	88 °F	August 7, 1942
Lowest daily high	70 °F	August 8, 1997
Hottest average high temperature	105.6 °F	1936
Coldest average high temperature	88.8 °F	1966
Most daily precipitation	5.5 inches	August 18, 1932
Most monthly precipitation	10.4 inches	1915

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	96.1	73.4	108	61
August 2	96.1	73.3	108	61
August 3	96.0	73.2	109	60
August 4	96.0	73.2	109	59
August 5	95.9	73.1	111	58
August 6	95.8	73.0	111	63
August 7	95.8	73.0	107	58
August 8	95.7	72.9	112	59
August 9	95.7	72.9	112	58
August 10	95.7	72.9	118	58
August 11	95.7	72.8	115	63
August 12	95.7	72.8	111	54
August 13	95.6	72.7	113	55
August 14	95.6	72.6	111	57
August 15	95.5	72.5	111	55
August 16	95.4	72.5	111	55
August 17	95.3	72.4	111	56
August 18	95.1	72.3	108	53
August 19	95.0	72.2	114	60
August 20	94.7	72.0	111	55
August 21	94.5	71.8	109	60
August 22	94.4	71.7	108	54
August 23	94.3	71.4	109	58
August 24	94.1	71.2	112	57
August 25	93.9	71.0	107	54
August 26	93.6	70.8	107	59
August 27	93.4	70.5	107	59
August 28	93.2	70.3	106	55
August 29	93.0	70.1	106	57
August 30	92.8	70.0	109	57
August 31	92.5	69.8	108	53

Weather Station Details

Years	Station	Coordinates
1999–2024	McKinney Municipal Airport	location
1903–1998	McKinney Municipal Airport	location