Harrison, TN Climate


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United States / Tennessee / Chattanooga Metro Area / Hamilton County / Harrison / Zip Codes
Harrison, TN has a humid subtropical climate that is typical of the southeastern United States. Summers in Harrison are hot and humid, with temperatures reaching into the low 90s. Winters are mild, with occasional cold snaps; overnight lows often drop into the 20s during winter months. Most of the area experiences an average of four inches of rain each month throughout the year, and snowfall is light and infrequent.

Harrison, Tennessee gets 51 inches of rain, on average, per year. The US average is 38 inches of rain per year.

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

On average, there are 213 sunny days per year in Harrison. The US average is 205 sunny days.

Harrison gets some kind of precipitation, on average, 106 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 2 inches of snow a year

Bestplaces Comfort Index

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

6.8 Summer - 6.5 Winter
May, September and October are the most pleasant months in Harrison, while January and July are the least comfortable months.

  ClimateHarrison, TennesseeUnited States
  51.1 in.38.1 in.
  1.5 in.27.8 in.
  106.4 days106.2 days
  213 days205 days
  89.4°85.8°
  28.8°21.7°
  7.57
  4.74.3
  755 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 Harrison with an average high temperature of 89.4°, which ranks it as warmer than most places in Tennessee. In Harrison, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Harrison are May, October and September.
In Harrison, there are 40.6 days annually when the high temperature is over 90°, which is hotter than most places in Tennessee.
January has the coldest nighttime temperatures for Harrison with an average of 28.8°. This is one of the warmest places in Tennessee.
In Harrison, there are 73.2 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Tennessee.
In Harrison, 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 Harrison 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.
January is the wettest month in Harrison with 5.0 inches of rain, and the driest month is October with 3.3 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 51.1 inches in Harrison means that it is drier than most places in Tennessee.
December is the rainiest month in Harrison with 9.9 days of rain, and October is the driest month with only 6.8 rainy days. There are 106.4 rainy days annually in Harrison, which is less rainy than most 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 1.5 inches in Harrison means that it is one of the least snowy places in Tennessee. January is the snowiest month in Harrison with 0.6 inches of snow, and 1 month of the year have significant snowfall.
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