San Diego, TX Climate


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United States / Texas / No Metro Area / Duval County / San Diego / Zip Codes
San Diego, TX has a warm climate with temperatures ranging from mild to hot throughout the year. The average high temperature in San Diego is 78°F (25.6°C), while the average low temperature is 58°F (14.4°C). Summers are generally hot and humid, with highs reaching up into the 90s (32-37°C) and humidity often over 50%. Winters can be mild or cool, but rarely drop below freezing. Rainfall in San Diego is relatively light, averaging around 28 inches per year.

San Diego, Texas gets 26 inches of rain, on average, per year. The US average is 38 inches of rain per year.

San Diego averages 0 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 222 sunny days per year in San Diego. The US average is 205 sunny days.

San Diego gets some kind of precipitation, on average, 55 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 97 degrees
Winter Low: the January low is 44
Rain: averages 26 inches of rain a year
Snow: averages 0 inches of snow a year


Bestplaces Comfort Index

The annual BestPlaces Comfort Index for San Diego is 6.7 (10=best), which means it is less comfortable than most places in Texas.

2.2 Summer - 8.8 Winter
March, November and April are the most pleasant months in San Diego, while July and August are the least comfortable months.

  ClimateSan Diego, TexasUnited States
  26.2 in.38.1 in.
  0.1 in.27.8 in.
  54.6 days106.2 days
  222 days205 days
  96.6°85.8°
  44.4°21.7°
  6.77
  6.14.3
  308 ft.2443 ft.
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 San Diego with an average high temperature of 97.1°, which ranks it as warmer than most places in Texas. In San Diego, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for San Diego are March, November and February.
In San Diego, there are 139.7 days annually when the high temperature is over 90°, which is hotter than most places in Texas.
January has the coldest nighttime temperatures for San Diego with an average of 44.4°. This is warmer than most places in Texas.
In San Diego, there are 7.5 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Texas.
In San Diego, 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 San Diego can be oppressive in the summer, but pleasant for much of the year. The humidity here has been described as stifling in July and June. The humid season extends from May-October and the most comfortable months are November-April.
September is the wettest month in San Diego with 3.3 inches of rain, and the driest month is December with 1.2 inches. The wettest season is Autumn with 30% of yearly precipitation and 15% occurs in Spring, which is the driest season. The annual rainfall of 26.2 inches in San Diego means that it is drier than most places in Texas.
September is the rainiest month in San Diego with 6.2 days of rain, and July is the driest month with only 3.8 rainy days. There are 54.6 rainy days annually in San Diego, which is less rainy than most places in Texas. The rainiest season is Winter when it rains 27% of the time and the driest is Autumn with only a 23% chance of a rainy day.
An annual snowfall of 0.1 inches in San Diego means that it is less snowy than most places in Texas. December is the snowiest month in San Diego with 0.1 inches of snow, and no months of the year have significant snowfall.
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