Allen, Texas 

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Climate in Allen, Texas

Allen, Texas gets 41 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Allen averages 2 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 232 sunny days per year in Allen. The US average is 205 sunny days.

Allen gets some kind of precipitation, on average, 83 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 93 degrees
Winter Low: the January low is 32
Rain: averages 41 inches of rain a year
Snow: averages 2 inches of snow a year


The annual BestPlaces Comfort Index for Allen is 7.2 (10=best), which means it is more comfortable than most places in Texas.

4.9 / 7.1

Summer   /   Winter
October, April and May are the most pleasant months in Allen, while July and August are the least comfortable months.

Climate Averages
  Allen, TexasUnited States
  41.2 in.38.1 in.
  1.5 in.27.8 in.
  82.7 days106.2 days
  232 days205 days
  659 ft.2443 ft.


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 Allen with an average high temperature of 94.5°, which ranks it as cooler than most places in Texas. In Allen, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Allen are October, May and April.

In Allen, there are 73.4 days annually when the high temperature is over 90°, which is cooler than most places in Texas.

January has the coldest nighttime temperatures for Allen with an average of 32.1°. This is colder than most places in Texas.

In Allen, there are 49.0 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Texas.

In Allen, 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 Allen 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.

May is the wettest month in Allen with 5.5 inches of rain, and the driest month is August with 2.0 inches. The wettest season is Summer with 31% of yearly precipitation and 21% occurs in Autumn, which is the driest season. The annual rainfall of 41.2 inches in Allen means that it is wetter than most places in Texas.

May is the rainiest month in Allen with 9.1 days of rain, and August is the driest month with only 4.8 rainy days. There are 82.7 rainy days annually in Allen, which is rainier than most places in Texas. The rainiest season is Summer when it rains 29% of the time and the driest is Autumn with only a 21% chance of a rainy day.

An annual snowfall of 1.5 inches in Allen means that it is snowier than most places in Texas. February is the snowiest month in Allen with 0.6 inches of snow, and 1 month of the year have significant snowfall.

  • Annual Rainfall (US Avg: 36.5")
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    Reviews for Allen    14 Reviews
    We love Allen - 12/13/2017
    Originally from Dallas, we moved to Allen 2013. We love the schools, my kids are getting a great education. My daughter was tested in the gifted program as soon as we... Read More

    Start Your Review of Allen

    Tim Lawrence - 11/26/2017
    Allen is quite possibly the best city I've ever had the privilege of visiting. Everyone you meet is courteous, helpful, and respectable. The town fully supports one... Read More

    Climate advice - 4/29/2016
    We are planning a move to Allen, Texas and would like to know how many months out of the year are warm enough to swim? Getting ready to make an offer on a home and... Read More

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