Decatur, TN Climate


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United States / Tennessee / No Metro Area / Meigs County / Decatur / Zip Codes
Decatur, TN has a humid subtropical climate with mild temperatures throughout the year. The average temperature in the winter is 38.3°F and the average temperature in the summer is 79.8°F. Rainfall is abundant, averaging about 50 inches annually, while snowfall averages around 5 inches per year. Summers are typically hot and humid with frequent thunderstorms, while winters are mild and relatively dry. Spring and fall are generally pleasant, with temperatures ranging from cool to mild.

Decatur, Tennessee gets 56 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Decatur averages 4 inches of snow per year. The US average is 28 inches of snow per year.

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

Decatur gets some kind of precipitation, on average, 123 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 26
Rain: averages 56 inches of rain a year
Snow: averages 4 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Decatur is 7.3 (10=best), which means it is about average compared to other places in Tennessee.

7.2 Summer - 6.1 Winter
September, May and October are the most pleasant months in Decatur, while January and December are the least comfortable months.

  ClimateDecatur, TennesseeUnited States
  55.5 in.38.1 in.
  3.6 in.27.8 in.
  122.6 days106.2 days
  205 days205 days
  88.1°85.8°
  25.7°21.7°
  7.37
  4.94.3
  778 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 Decatur with an average high temperature of 88.1°, which ranks it as cooler than most places in Tennessee. In Decatur, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Decatur are May, September and October.
In Decatur, there are 29.2 days annually when the high temperature is over 90°, which is cooler than most places in Tennessee.
January has the coldest nighttime temperatures for Decatur with an average of 25.7°. This is colder than most places in Tennessee.
In Decatur, there are 92.0 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Tennessee.
In Decatur, there are 0.2 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Tennessee.
Humidity in Decatur 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.
December is the wettest month in Decatur with 5.3 inches of rain, and the driest month is October with 3.1 inches. The wettest season is Spring with 28% of yearly precipitation and 23% occurs in Winter, which is the driest season. The annual rainfall of 55.5 inches in Decatur means that it is wetter than most places in Tennessee.
July is the rainiest month in Decatur with 12.3 days of rain, and October is the driest month with only 7.7 rainy days. There are 122.6 rainy days annually in Decatur, 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 20% chance of a rainy day.
An annual snowfall of 3.6 inches in Decatur means that it is about average compared to other places in Tennessee. January is the snowiest month in Decatur with 1.3 inches of snow, and 3 months of the year have significant snowfall.
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David · Decatur, TN
loss of tax income to Mcminn County
Over 18 years ago

We need more places to eat and buy groceries, we are lossing a lot of sale tax money from people going to Athens and other near by  More

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David · Decatur, TN
Meth
Over 18 years ago

We need a judge who will quit slapping meth cooks and users/sellers on the wrist and putting them back on the street with little fine or jail time or community  More

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