TODAY JUN19
TEMPERATURE88
HUMIDITY57
PRESSURE30.05
WIND COND.340 11.4
  • 8570Wed20%40%
  • 8269Thu70%70%
  • 8269Fri90%90%
  • 8470Sat70%70%
  • 8870Sun50%40%
daynightWeather update from Chattanooga, Lovell Field at

Signal Mountain Average Weather

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January10°F72°F43°F3.9"
February14°F74°F44°F3.1"
March21°F88°F53°F3.9"
April27°F89°F61°F4.2"
May41°F92°F68°F3.1"
June54°F99°F77°F3.0"
July57°F100°F78°F5.2"
August60°F105°F80°F3.9"
September46°F97°F73°F4.3"
October30°F91°F61°F4.0"
November19°F84°F50°F4.0"
December14°F77°F44°F5.6"

Did you know?

  • The highest monthly average temperature in Signal Mountain for August is 80 degrees.
  • The lowest monthly average temperature in Signal Mountain for January is 43 degrees.
  • The most monthly precipitation in Signal Mountain occurs in December with 5.6 inches.
  • The air quality index in Signal Mountain is 11% better than the national average.
  • The pollution index in Signal Mountain is 94% better than the national average.

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Compare Signal Mountain, TN Weather To Other Cities

Signal Mountain air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
IndexSignal MountainTennesseeNational
Air quality index447650
Pollution index271,3563,610,4745,066,862

Signal Mountain air quality information

MeasurementTotal
Days measured363
Days with good air quality240
Days with moderate air quality123
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Signal Mountain air quality information

PollutantTotal
Arsenic0.000%
Benzene0.004%
Carbon Tetrachloride0.001%
Lead0.000%
Mercury0.000%

Average monthly Signal Mountain temperature with heat index

Signal Mountain monthly precipitation with daily maximum

Signal Mountain monthly snow depth with daily maximum

Signal Mountain monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Fairview, GA7,8434412%
Lookout Mountain, GA1,7544412%
Fairmount, TN3,1974412%
Lone Oak, TN8214412%
Palmer, TN6914412%
Signal Mountain, TN8,5004412%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Palm Beach, FL8,5012942%
Live Oak city, CA8,5013628%
Itasca, IL8,5026020%
Jerseyville, IL8,5026020%
Winchester, TN8,5043726%
Signal Mountain, TN8,5004412%
Source: The Signal Mountain, TN weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.