McNairy County, TN Climate

McNairy County, TN is located in the southwestern portion of the state and has a humid subtropical climate. Summers are very hot and humid with average high temperatures in the mid-90s. Winters are mild to cool with occasional cold snaps during which temperatures can drop below freezing. The county receives an average annual precipitation of around 46 inches, although this varies greatly depending on the season. Thunderstorms and tornadoes are common throughout the summer months, while winter brings occasional snowfall. Overall, McNairy County enjoys warm weather year round, making it an ideal place for outdoor recreation and enjoyment of nature.

McNairy County, Tennessee gets 58 inches of rain, on average, per year. The US average is 38 inches of rain per year.

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

On average, there are 216 sunny days per year in McNairy County. The US average is 205 sunny days.

McNairy County gets some kind of precipitation, on average, 111 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 90 degrees
Winter Low: the January low is 28
Rain: averages 58 inches of rain a year
Snow: averages 2 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for McNairy County is 7.1 (10=best), which means it is less comfortable than most places in Tennessee.

5.9 Summer - 6.4 Winter

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

Climate	McNairy, Tennessee	United States
	Unlock	38.1 in.
	2.0 in.	Unlock
	Unlock	106.2 days
	216 days	Unlock
	90.3°	85.8°
	Unlock	21.7°
	7.1	Unlock
	Unlock	4.3
	489 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 McNairy County with an average high temperature of 90.3°, which ranks it as one of the hottest places in Tennessee. In McNairy County, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for McNairy County are May, October and April.

In McNairy County, there are 50.2 days annually when the high temperature is over 90°, which is one of the hottest places in Tennessee.

January has the coldest nighttime temperatures for McNairy County with an average of 27.8°. This is warmer than most places in Tennessee.

In McNairy County, there are 77.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Tennessee.

In McNairy County, there are 0.3 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Tennessee.

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

May is the wettest month in McNairy County with 6.3 inches of rain, and the driest month is August with 3.3 inches. The wettest season is Summer with 29% of yearly precipitation and 22% occurs in Autumn, which is the driest season. The annual rainfall of 57.7 inches in McNairy County means that it is one of the wettest places in Tennessee.

December is the rainiest month in McNairy County with 10.9 days of rain, and September is the driest month with only 6.8 rainy days. There are 110.9 rainy days annually in McNairy County, which is less rainy than most places in Tennessee. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 22% chance of a rainy day.

An annual snowfall of 2.0 inches in McNairy County means that it is one of the least snowy places in Tennessee. February is the snowiest month in McNairy County with 0.8 inches of snow, and 2 months of the year have significant snowfall.

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