Philadelphia, TN Climate


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United States / Tennessee / Knoxville Metro Area / Loudon County / Philadelphia / Zip Codes
Philadelphia, TN has a humid subtropical climate with hot summers and mild winters. The area typically experiences high levels of humidity year-round due to its proximity to the Tennessee River. Summer temperatures usually range between 75-90 degrees Fahrenheit, while winter temperatures tend to linger around the mid-40s. Rainfall is consistent throughout the year with an average of about 50 inches annually.

Philadelphia, Tennessee gets 54 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Philadelphia averages 5 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 Philadelphia. The US average is 205 sunny days.

Philadelphia gets some kind of precipitation, on average, 121 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 26
Rain: averages 54 inches of rain a year
Snow: averages 5 inches of snow a year

Bestplaces Comfort Index

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

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

  ClimatePhiladelphia, TennesseeUnited States
  53.6 in.38.1 in.
  4.5 in.27.8 in.
  121.3 days106.2 days
  204 days205 days
  88.5°85.8°
  26.3°21.7°
  7.37
  4.64.3
  850 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 Philadelphia with an average high temperature of 88.5°, which ranks it as about average compared to other places in Tennessee. In Philadelphia, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Philadelphia are May, September and October.
In Philadelphia, there are 33.2 days annually when the high temperature is over 90°, which is about average compared to other places in Tennessee.
January has the coldest nighttime temperatures for Philadelphia with an average of 26.3°. This is about average compared to other places in Tennessee.
In Philadelphia, there are 89.2 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Tennessee.
In Philadelphia, there are 0.3 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Tennessee.
Humidity in Philadelphia 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 Philadelphia with 5.1 inches of rain, and the driest month is October with 3.1 inches. The wettest season is Spring with 28% of yearly precipitation and 22% occurs in Winter, which is the driest season. The annual rainfall of 53.6 inches in Philadelphia means that it is about average compared to other places in Tennessee.
July is the rainiest month in Philadelphia with 11.9 days of rain, and September is the driest month with only 7.5 rainy days. There are 121.3 rainy days annually in Philadelphia, 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 4.5 inches in Philadelphia means that it is snowier than most places in Tennessee. January is the snowiest month in Philadelphia with 1.7 inches of snow, and 4 months of the year have significant snowfall.
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