CLIMATE CHARTS

San Marcos, Texas

Latitude: 29.8833 Longitude: -97.9494

Elevation: 665 feet (202.7 meters)

San Marcos, Texas Temperature Chart Daily average maximum and minimum temperatures for San Marcos, Texas Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec High & Low Temperature °F  °C -30 -34.4 -20 -28.9 -10 -23.3 0 -17.8 10 -12.2 20 -6.7 30 -1.1 40 4.4 50 10.0 60 15.6 70 21.1 80 26.7 90 32.2 100 37.8 110 43.3 San Marcos, Texas Precipitation Chart Precipitation chart for San Marcos, Texas Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Precipitation In. Cm. 0.00 0.00 0.10 0.25 0.20 0.51 0.30 0.76 0.40 1.02 0.50 1.27 0.60 1.52 0.70 1.78 0.80 2.03 0.90 2.29 1.00 2.54 Daylight Chart for SAN MARCOS, TX Daylight chart for SAN MARCOS, TX. Latitude 29.9. Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Sunrise/Sunset Daylight NOON NOON 0 0 2 2 4 4 6 6 8 8 10 10 12 12 14 2 16 4 18 6 20 8 22 10 24 12

Monthly Data Table for San Marcos, Texas

Imperial Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °F 62.4 65.9 72.5 79.7 85.9 91.4 94.3 95.8 90.0 82.0 72.0 63.3
Minimum Temperature °F 38.7 42.2 49.1 56.8 65.5 71.7 73.5 73.6 67.7 58.4 49.0 40.3
Heating Degree Days °F 453 318 180 43 3 0 0 0 2 34 184 419
Cooling Degree Days °F 5 12 50 141 334 496 586 610 418 196 49 10
Precipitation in. 2.06 1.92 2.48 2.72 4.13 4.64 2.50 2.19 3.42 4.33 3.05 2.29

Metric Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °C 16.9 18.8 22.5 26.5 29.9 33.0 34.6 35.4 32.2 27.8 22.2 17.4
Minimum Temperature °C 3.7 5.7 9.5 13.8 18.6 22.1 23.1 23.1 19.8 14.7 9.4 4.6
Heating Degree Days °C 252 177 100 24 2 0 0 0 1 19 102 233
Cooling Degree Days °C 3 7 28 78 186 276 326 339 232 109 27 6
Precipitation cm. 5.23 4.88 6.30 6.91 10.49 11.79 6.35 5.56 8.69 11.00 7.75 5.82
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