Zip 37409 (Chattanooga, TN) Climate

Chattanooga, TN (37409) enjoys a humid subtropical climate with four distinct seasons. Summers are hot and humid with temperatures reaching the mid-90s while winters are mild, bringing cool temperatures between 35-50 degrees Fahrenheit. Rainfall is plentiful year round and snowfall averages around six inches per year. Spring and fall offer pleasant weather with temperatures ranging from the 60s to 80s throughout most of the season.

Chattanooga (zip 37409), Tennessee gets 51 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Chattanooga (zip 37409) averages 1 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 210 sunny days per year in Chattanooga (zip 37409). The US average is 205 sunny days.

Chattanooga (zip 37409) gets some kind of precipitation, on average, 99 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 89 degrees
Winter Low: the January low is 29
Rain: averages 51 inches of rain a year
Snow: averages 1 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 37409 zip code is 7.5 (10=best), which means it is one of the most pleasant places in Tennessee.

6.9 Summer - 6.5 Winter

May, September and October are the most pleasant months in the 37409 zip code, while January and July are the least comfortable months.

Climate	Chattanooga, Tennessee	United States
	50.5 in.	38.1 in.
	1.3 in.	27.8 in.
	98.6 days	106.2 days
	210 days	205 days
	89.2°	85.8°
	28.9°	21.7°
	7.5	7
	4.7	4.3
	886 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.

July is the hottest month for the 37409 zip code with an average high temperature of 89.2°, which ranks it as warmer than most places in Tennessee. In the 37409 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 37409 zip code are May, October and September.

In the 37409 zip code, there are 39.5 days annually when the high temperature is over 90°, which is hotter than most places in Tennessee.

January has the coldest nighttime temperatures for the 37409 zip code with an average of 28.9°. This is one of the warmest places in Tennessee.

In the 37409 zip code, there are 73.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Tennessee.

In the 37409 zip code, there are 0.1 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Tennessee.

Humidity in the 37409 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.

February is the wettest month in the 37409 zip code with 4.9 inches of rain, and the driest month is October with 3.2 inches. The wettest season is Spring with 29% of yearly precipitation and 23% occurs in Autumn, which is the driest season. The annual rainfall of 50.5 inches in the 37409 zip code means that it is drier than most places in Tennessee.

December is the rainiest month in the 37409 zip code with 9.2 days of rain, and October is the driest month with only 6.2 rainy days. There are 98.6 rainy days annually in the 37409 zip code, which is one of the least rainy places in Tennessee. The rainiest season is Spring when it rains 28% of the time and the driest is Winter with only a 21% chance of a rainy day.

An annual snowfall of 1.3 inches in the 37409 zip code means that it is one of the least snowy places in Tennessee. January is the snowiest month in the 37409 zip code with 0.6 inches of snow, and 1 month of the year have significant snowfall.

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