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Mertzon, TX Weather


Mertzon, TX climate is hot during summer when temperatures tend to be in the 80's and cold during winter when temperatures tend to be in the 40's.

The warmest month of the year is July with an average maximum temperature of 9.99 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 9.99 degrees Fahrenheit.

Temperature variations between night and day tend to be moderate during summer with a difference that can reach 24 degrees Fahrenheit, and moderate during winter with an average difference of 27 degrees Fahrenheit.

The annual average precipitation at Mertzon is 9.99 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is May with an average rainfall of 3.41 Inches.

Weather Data

Normal Climate

Normal Temperatures

(SAN ANGELO MATHIS AP Weather station, 9.99 miles from Mertzon)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max °F 57.9 63.5 71.1 79.0 85.6 90.8 94.4 93.1 86.6 77.8 66.5 59.3 77.1
Mean °F 44.9 49.7 57.2 65.0 73.1 79.2 82.4 81.3 74.8 65.4 54.0 46.4 64.5
Min °F 31.8 36.0 43.3 51.0 60.6 67.6 70.4 69.4 63.0 53.0 41.4 33.5 51.8

Normal Precipitation

(MERTZON Weather station, 0.60 miles from Mertzon)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Inch 0.71 1.26 1.00 1.52 3.41 2.42 1.23 2.32 2.64 2.20 0.90 0.88 9.99