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San Marcos July Weather

Averages and records for weather in San Marcos, Texas in the month of July.

Typical San Marcos July Weather 1991–2020
Average daily high	95.7 °F
Average daily low	73.8 °F
Average monthly precipitation	2.3 inches
Average monthly snow	none
Daily chance of precipitation	16.9%
Daily chance of snow	0%

San Marcos July Weather Records 1893–2024
Highest temperature	110 °F	July 27, 1954
Lowest temperature	56 °F	July 16, 1967
Highest daily low	80 °F	July 2, 1992
Lowest daily high	72 °F	July 5, 1985
Hottest average high temperature	103.7 °F	1925
Coldest average high temperature	86.3 °F	1919
Most daily precipitation	7.3 inches	July 29, 1902
Most monthly precipitation	14.8 inches	1902
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
July 1	94.1	73.4	103	63
July 2	94.2	73.4	104	65
July 3	94.3	73.4	105	60
July 4	94.3	73.4	103	59
July 5	94.4	73.4	103	61
July 6	94.5	73.5	103	63
July 7	94.6	73.6	104	61
July 8	94.8	73.6	108	63
July 9	94.9	73.7	106	66
July 10	95.0	73.7	106	63
July 11	95.1	73.7	107	59
July 12	95.2	73.7	107	64
July 13	95.3	73.7	107	65
July 14	95.4	73.7	109	64
July 15	95.5	73.8	109	65
July 16	95.7	73.8	106	56
July 17	95.9	73.8	106	57
July 18	96.0	73.8	108	62
July 19	96.2	73.8	106	65
July 20	96.3	73.8	106	65
July 21	96.4	73.8	105	66
July 22	96.5	73.8	106	62
July 23	96.6	73.8	106	60
July 24	96.8	73.8	106	61
July 25	96.9	73.9	106	62
July 26	96.9	73.9	105	64
July 27	97.0	73.9	110	64
July 28	97.1	73.9	107	60
July 29	97.1	73.9	107	61
July 30	97.2	73.9	108	63
July 31	97.2	73.9	106	60

Weather Station Details

Years	Station	Coordinates
1893–2024	San Marcos	location