Collin County, TX Climate

Collin County, Texas has a warm and humid climate. Summers in the county are hot and humid with average high temperatures reaching into the mid-90s while winter temperatures average in the upper-50s. Rainfall is common throughout the year with most occurring in the spring and summer months. There are also occasional snow storms during winter months, although they are not frequent. Overall, Collin County has a pleasant and mild climate that makes it an ideal location for outdoor activities all year round.

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

Collin County averages 1 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 Collin County. The US average is 205 sunny days.

Collin County gets some kind of precipitation, on average, 80 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 33
Rain: averages 41 inches of rain a year
Snow: averages 1 inches of snow a year

Bestplaces Comfort Index

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

4.6 Summer - 7.2 Winter

October, April and May are the most pleasant months in Collin County, while July and August are the least comfortable months.

Climate	Collin, Texas	United States
	40.9 in.	38.1 in.
	1.3 in.	27.8 in.
	80.1 days	106.2 days
	232 days	205 days
	93.8°	85.8°
	32.5°	21.7°
	7.2	7
	5.6	4.3
	611 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 Collin County with an average high temperature of 95.0°, which ranks it as about average compared to other places in Texas. In Collin County, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Collin County are October, April and May.

In Collin County, there are 78.8 days annually when the high temperature is over 90°, which is cooler than most places in Texas.

January has the coldest nighttime temperatures for Collin County with an average of 32.5°. This is colder than most places in Texas.

In Collin County, there are 45.9 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Texas.

In Collin County, 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 Collin County 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 Collin County with 5.4 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 Spring, which is the driest season. The annual rainfall of 40.9 inches in Collin County means that it is wetter than most places in Texas.

May is the rainiest month in Collin County with 9.0 days of rain, and August is the driest month with only 4.6 rainy days. There are 80.1 rainy days annually in Collin County, 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 1.3 inches in Collin County means that it is snowier than most places in Texas. February is the snowiest month in Collin County with 0.5 inches of snow, and 1 month of the year have significant snowfall.

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