Mission (TX) Temperature by Month
The average annual maximum temperature in Mission, Texas, United States of America is 30°C (86°F), with daytime highs ranging from 22°C (72°F) in January to 37°C (99°F) in August. This page covers monthly averages, day-night differences, and how Mission compares to cities worldwide.
Mission Monthly Temperatures
The climate in Mission is known for significant temperature differences throughout the year. At night, this contrast is just as clear, with lows ranging from 25°C (77°F) in August to 9°C (48°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Mission 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: Mission 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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Mission vs World: Temperature Compared
Mission's average annual maximum temperature is 30°C (86°F). To put that in context, here's how it compares to a few well-known destinations:
Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.
Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.
Seoul, South Korea averages 18°C (64°F) a year, with four clear seasons, cold winters, and hot humid summers.
Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.
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.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Mission's weather — including monthly rainfall, sunshine hours, and humidity — visit our Mission climate page.
