Historical Weather in Chattanooga, TN
See 55+ years of weather history for any date in Chattanooga going back to 1970.
Part of Tennessee weather history · Tennessee temperature records
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Monthly Climate Averages
Historical temperature and precipitation averages for Chattanooga, TN, based on 55+ years of weather data.
Warmest MonthAugustAvg High: 88°F / Low: 68°F
Coldest MonthJanuaryAvg High: 49°F / Low: 30°F
Jan
49°/ 30°
💧 12.0"
❄️ 1.4"
Feb
54°/ 33°
💧 12.0"
❄️ 1.6"
Mar
62°/ 40°
💧 12.4"
❄️ 1.8"
Apr
72°/ 48°
💧 12.3"
❄️ 1.9"
May
78°/ 57°
💧 10.6"
Jun
85°/ 65°
💧 9.5"
Jul
88°/ 69°
💧 10.5"
Aug
88°/ 68°
💧 10.4"
Sep
82°/ 62°
💧 14.2"
Oct
72°/ 50°
💧 11.7"
Nov
61°/ 39°
💧 12.8"
❄️ 0.4"
Dec
52°/ 33°
💧 12.0"
❄️ 0.8"
Temperatures in Fahrenheit. Precipitation and snowfall in inches.
Chattanooga, TN Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Avg high Avg low
Chattanooga, TN Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Rain (in) Snow (in)
Chattanooga, TN Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
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Best Time to Visit Chattanooga, TN
Chattanooga, TN has no months that meet our "pleasant" threshold — every season has tradeoffs.
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Pleasant (65-82°F, ≤2.5" rain) Mild Less ideal
Chattanooga Temperature Records
- Record High: The hottest temperature ever recorded in Chattanooga, TN is 107°F, set on June 30, 2012.
- Record Low: The coldest temperature ever recorded in Chattanooga, TN is -13°F, set on January 20, 1985.
- Data Coverage: Based on 57 years of data from NOAA weather station: CHATTANOOGA AP.
All-Time Record High
107°F
June 30, 2012
All-Time Record Low
-13°F
January 20, 1985
Monthly Temperature Records in Chattanooga
| Month | Record High | Record Low |
|---|---|---|
| January | 78°F(1975) | -13°F(1985) |
| February | 82°F(1977) | -5°F(1996) |
| March | 88°F(2007) | 6°F(1996) |
| April | 92°F(1986) | 19°F(2007) |
| May | 96°F(2011) | 27°F(2004) |
| June | 107°F(2012) | 39°F(1972) |
| July | 107°F(2012) | 41°F(2000) |
| August | 105°F(2007) | 44°F(2000) |
| September | 103°F(2019) | 23°F(2001) |
| October | 100°F(2019) | 21°F(2001) |
| November | 88°F(2003) | 11°F(1970) |
| December | 78°F(1978) | -6°F(2022) |
Chattanooga Snow RecordsSee the top 10 snowiest days ever recorded
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Holiday Weather in Chattanooga
Weather Analysis & Trends
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