Zip 37909 (Knoxville, TN) Climate

Knoxville, TN 37909 has a humid subtropical climate with hot and humid summers and short but mild winters. The average high temperatures in the summer months range from 81°F (June) to 90°F (July), while the average low temperatures range from 58°F (June) to 68°F (July). The winter months are typically cooler, with highs of 48-51°F and lows of around 34-37°F. Precipitation is fairly consistent throughout the year, averaging around 45 inches annually. A couple of months experience more rain than others, which can be attributed to thunderstorms during the summer months.

Knoxville (zip 37909), Tennessee gets 50 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Knoxville (zip 37909) averages 6 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 204 sunny days per year in Knoxville (zip 37909). The US average is 205 sunny days.

Knoxville (zip 37909) gets some kind of precipitation, on average, 127 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 88 degrees
Winter Low: the January low is 28
Rain: averages 50 inches of rain a year
Snow: averages 6 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 37909 zip code is 7.4 (10=best), which means it is more comfortable than most places in Tennessee.

7.2 Summer - 6.1 Winter

September, May and October are the most pleasant months in the 37909 zip code, while January and December are the least comfortable months.

Climate	Knoxville, Tennessee	United States
	Unlock	38.1 in.
	6.2 in.	Unlock
	Unlock	106.2 days
	204 days	Unlock
	88.1°	85.8°
	Unlock	21.7°
	7.4	Unlock
	Unlock	4.3
	956 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.

July is the hottest month for the 37909 zip code with an average high temperature of 88.1°, which ranks it as cooler than most places in Tennessee. In the 37909 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 37909 zip code are May, September and October.

In the 37909 zip code, there are 30.1 days annually when the high temperature is over 90°, which is cooler than most places in Tennessee.

January has the coldest nighttime temperatures for the 37909 zip code with an average of 28.4°. This is warmer than most places in Tennessee.

In the 37909 zip code, there are 74.2 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Tennessee.

In the 37909 zip code, there are 0.2 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Tennessee.

Humidity in the 37909 zip code 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.

July is the wettest month in the 37909 zip code with 5.3 inches of rain, and the driest month is October with 2.8 inches. The wettest season is Spring with 28% of yearly precipitation and 21% occurs in Winter, which is the driest season. The annual rainfall of 50.2 inches in the 37909 zip code means that it is drier than most places in Tennessee.

July is the rainiest month in the 37909 zip code with 12.1 days of rain, and September is the driest month with only 8.1 rainy days. There are 127.4 rainy days annually in the 37909 zip code, which is rainier than most places in Tennessee. The rainiest season is Summer when it rains 27% of the time and the driest is Winter with only a 21% chance of a rainy day.

An annual snowfall of 6.2 inches in the 37909 zip code means that it is snowier than most places in Tennessee. January is the snowiest month in the 37909 zip code with 2.5 inches of snow, and 4 months of the year have significant snowfall.

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