Zip 78203 (San Antonio, TX) Climate

San Antonio, TX is located in a humid subtropical climate, meaning the summers are hot and humid with temperatures often reaching into the 90s or higher. Winters are mild and relatively dry, with temperatures rarely dropping below freezing. In terms of precipitation, San Antonio receives around 33 inches of rain annually, and snowfall is rare.

San Antonio (zip 78203), Texas gets 33 inches of rain, on average, per year. The US average is 38 inches of rain per year.

San Antonio (zip 78203) averages 0 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 224 sunny days per year in San Antonio (zip 78203). The US average is 205 sunny days.

San Antonio (zip 78203) gets some kind of precipitation, on average, 84 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 94 degrees
Winter Low: the January low is 41
Rain: averages 33 inches of rain a year
Snow: averages 0 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 78203 zip code is 7.0 (10=best), which means it is about average compared to other places in Texas.

3 Summer - 8.1 Winter

April, October and November are the most pleasant months in the 78203 zip code, while August and July are the least comfortable months.

Climate	San Antonio, Texas	United States
	Unlock	38.1 in.
	0.2 in.	Unlock
	Unlock	106.2 days
	224 days	Unlock
	94.4°	85.8°
	Unlock	21.7°
	7	Unlock
	Unlock	4.3
	700 ft.	Unlock

Climate

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

August is the hottest month for the 78203 zip code with an average high temperature of 96.1°, which ranks it as warmer than most places in Texas. In the 78203 zip code, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for the 78203 zip code are April, October and March.

In the 78203 zip code, there are 105.3 days annually when the high temperature is over 90°, which is hotter than most places in Texas.

January has the coldest nighttime temperatures for the 78203 zip code with an average of 40.5°. This is warmer than most places in Texas.

In the 78203 zip code, there are 16.5 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Texas.

In the 78203 zip code, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Texas.

Humidity in the 78203 zip code can be uncomfortable during the summer, but comfortable for most of the year. The most uncomfortably humid months are July, June and August. The humid season runs from May-September and the most comfortable months are October-April.

October is the wettest month in the 78203 zip code with 4.1 inches of rain, and the driest month is January with 1.8 inches. The wettest season is Winter with 29% of yearly precipitation and 17% occurs in Spring, which is the driest season. The annual rainfall of 32.5 inches in the 78203 zip code means that it is about average compared to other places in Texas.

March is the rainiest month in the 78203 zip code with 9.3 days of rain, and August is the driest month with only 4.5 rainy days. There are 84.4 rainy days annually in the 78203 zip code, which is rainier than most places in Texas. The rainiest season is Summer when it rains 28% of the time and the driest is Autumn with only a 21% chance of a rainy day.

An annual snowfall of 0.2 inches in the 78203 zip code means that it is about average compared to other places in Texas. January is the snowiest month in the 78203 zip code with 0.2 inches of snow, and no months of the year have significant snowfall.

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