Sherman (TX) Temperature by Month
Sherman in Texas, United States of America sees significant seasonal temperature differences, with daytime highs between 12°C (54°F) in January and 35°C (95°F) in August, averaging 23°C (73°F) annually. Explore the full monthly breakdown below.
Sherman Monthly Temperatures
Visitors to Sherman will encounter a climate influenced by big temperature differences across the year. Nighttime temperatures range from 23°C (73°F) in August to 0°C (32°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Sherman by month:
Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM.
The chart below shows the average temperature throughout the year:
Temperature: Sherman vs the United States of America
The map below shows the annual temperature across the United States of America. You can also select individual months if you want to compare a specific time of year.
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Sherman vs World: Temperature Compared
Sherman's average annual maximum temperature is 23°C (73°F). To put that in context, here's how it compares to a few well-known destinations:
Lisbon, Portugal averages 21°C (70°F) annually — warm summers, mild winters, and rain mainly in the cooler months.
Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.
Osaka, Japan averages 22°C (72°F) annually, with hot humid summers, mild winters, and pleasant spring and autumn seasons.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Seasonal temperature shifts influence more than just how warm it feels — they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.
Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Sherman this rarely lasts long on the ground.
For more on Sherman's weather — including monthly rainfall, sunshine hours, and humidity — visit our Sherman climate page.
