Sinton, TX Climate

Climate Insight: Sinton, TX

The NOAA 1991–2020 climate normals describe Sinton, Texas as a location with an annual average temperature of 72°F, ranging from a mean daily high of 81°F to a mean daily low of 62°F. August is typically the warmest month of the year, while January is the coldest. These thirty-year averages, computed from station USC00418354, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.

Sinton averages 33.0 inches of precipitation a year, with negligible snowfall, and that matters as much to daily life here as temperature does. The frost-free season averages 319 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near February 1 and the first fall freeze near December 17. As for energy demand, 1,011 heating degree days and 3,419 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Sinton scores 100/100 (Excellent), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. For planning purposes, look to the monthly tables above: shoulder seasons bring the mildest highs and lows, summer brings August-driven heat, and deep winter brings January-driven cold. Treat every figure here as a thirty-year average rather than a forecast - individual years routinely run warmer, cooler, wetter, or drier than the normal.