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East Chattanooga, TN Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in East Chattanooga, TN?
East Chattanooga, TN gets 55.0 in of precipitation a year over about 123 rainy days, and about 3.6 in of snow a season. July is the warmest month (average high 90°F) and January the coldest (average low 32°F).
Humid subtropical climate
East Chattanooga, TN has hot summers and chilly winters. Daytime highs range from about 51°F in January to 90°F in July. March is usually the wettest month, and snow falls in winter. The most comfortable time to visit is typically April and October to November, when daytime highs sit near 70°F.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | 34° | 53° |
| Spring | Mar–May | 50° | 73° |
| Summer | Jun–Aug | 69° | 89° |
| Autumn | Sep–Nov | 51° | 73° |
How much rain does East Chattanooga get?
East Chattanooga gets 55.0 in of precipitation in an average year, spread over about 123 days with measurable rain. That is more rainy days than 80% of the US.
March is the wettest month, with 5.3 in. October is the driest, with 3.6 in. July has the most rainy days, about 12.
The longest dry spell in the last five years lasted 20 days, to November 9, 2023.
From September 2025 to August 2026 East Chattanooga got 42.2 in of rain, against a normal of 55.0 in for those months. May 2026 had the most, with 6.5 in.
See where East Chattanooga ranks: rainiest cities in the US, US cities with the most rainy days, rainiest cities in Tennessee.
Does it snow in East Chattanooga?
Yes. East Chattanooga gets about 3.6 in of snow in an average season, measured at the reporting station.
The snowiest winter on record is 1992–93, with 22.7 in.
The most recent measurable snow at the station fell on January 31, 2026.
From September 2025 to August 2026 the station measured 0.8 in of snow, against a normal of 3.6 in for those months. January 2026 had the most, with 0.8 in.
See where East Chattanooga ranks: snowiest cities in the US.
East Chattanooga weather by month
East Chattanooga weather in January
In January, East Chattanooga averages a high of 51°F and a low of 32°F. It gets 5.0 in of precipitation over about 11 rainy days. Estimated sunshine is 38% of daylight hours, derived from ERA5 cloud cover. The January record high is 78°F (2022) and the record low is -10°F (1985).
East Chattanooga weather in February
In February, East Chattanooga averages a high of 56°F and a low of 35°F. It gets 5.0 in of precipitation over about 11 rainy days. Estimated sunshine is 39% of daylight hours, derived from ERA5 cloud cover. The February record high is 82°F (2023) and the record low is 2°F (1996).
East Chattanooga weather in March
In March, East Chattanooga averages a high of 64°F and a low of 42°F. It gets 5.3 in of precipitation over about 11 rainy days. Estimated sunshine is 38% of daylight hours, derived from ERA5 cloud cover. The March record high is 88°F (2007) and the record low is 9°F (1980).
East Chattanooga weather in April
In April, East Chattanooga averages a high of 73°F and a low of 50°F. It gets 4.9 in of precipitation over about 10 rainy days. Estimated sunshine is 47% of daylight hours, derived from ERA5 cloud cover. The April record high is 92°F (1986) and the record low is 25°F (1992). April is one of the most comfortable months to visit.
East Chattanooga weather in May
In May, East Chattanooga averages a high of 81°F and a low of 59°F. It gets 3.9 in of precipitation over about 11 rainy days. Estimated sunshine is 39% of daylight hours, derived from ERA5 cloud cover. The May record high is 96°F (2011) and the record low is 34°F (1971).
East Chattanooga weather in June
In June, East Chattanooga averages a high of 88°F and a low of 67°F. It gets 4.2 in of precipitation over about 11 rainy days. Estimated sunshine is 42% of daylight hours, derived from ERA5 cloud cover. The June record high is 107°F (2012) and the record low is 41°F (1972).
East Chattanooga weather in July
In July, East Chattanooga averages a high of 90°F and a low of 71°F. It gets 5.1 in of precipitation over about 12 rainy days. Estimated sunshine is 36% of daylight hours, derived from ERA5 cloud cover. The July record high is 107°F (2012) and the record low is 51°F (1972).
East Chattanooga weather in August
In August, East Chattanooga averages a high of 90°F and a low of 70°F. It gets 3.7 in of precipitation over about 9 rainy days. Estimated sunshine is 46% of daylight hours, derived from ERA5 cloud cover. The August record high is 105°F (2007) and the record low is 53°F (1992).
East Chattanooga weather in September
In September, East Chattanooga averages a high of 84°F and a low of 63°F. It gets 4.2 in of precipitation over about 8 rainy days. Estimated sunshine is 49% of daylight hours, derived from ERA5 cloud cover. The September record high is 103°F (2019) and the record low is 40°F (1982).
East Chattanooga weather in October
In October, East Chattanooga averages a high of 74°F and a low of 51°F. It gets 3.6 in of precipitation over about 8 rainy days. Estimated sunshine is 58% of daylight hours, derived from ERA5 cloud cover. The October record high is 100°F (2019) and the record low is 26°F (1976). October is one of the most comfortable months to visit.
East Chattanooga weather in November
In November, East Chattanooga averages a high of 62°F and a low of 40°F. It gets 4.8 in of precipitation over about 9 rainy days. Estimated sunshine is 50% of daylight hours, derived from ERA5 cloud cover. The November record high is 86°F (2016) and the record low is 13°F (1970). November is one of the most comfortable months to visit.
East Chattanooga weather in December
In December, East Chattanooga averages a high of 53°F and a low of 35°F. It gets 5.3 in of precipitation over about 11 rainy days. Estimated sunshine is 40% of daylight hours, derived from ERA5 cloud cover. The December record high is 78°F (2025) and the record low is -2°F (1983).
Sunshine, humidity and wind in East Chattanooga
October is the sunniest month in East Chattanooga, with estimated sunshine of 58% of daylight hours from ERA5 cloud cover. July is the cloudiest, at 36%. The annual cloud-cover estimate is 44% of daylight hours; it is not a measurement of sunshine duration. East Chattanooga is cloudier than 71% of the US.
Humidity peaks in August at 73% and is lowest in March at 60%.
Wind averages 5 mph over the year, and March is the windiest month at 7 mph.
East Chattanooga has about 53 days a year above 90°F. East Chattanooga is hotter than 70% of the US.
Thunderstorms occur on about 56 days a year.
See where East Chattanooga ranks: sunniest cities in the US, cloudiest cities in the US, hottest cities in the US.
First and last freeze in East Chattanooga
The first fall freeze in East Chattanooga typically comes around November 6, and the last spring freeze around March 26. That leaves a frost-free growing season of about 225 days.
East Chattanooga weather records
These records cover CHATTANOOGA AP during 1970–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the East Chattanooga station is 107°F, on June 30, 2012. The coldest is -10°F, on January 21, 1985.
The wettest day in the available station history brought 9.5 in of precipitation, on September 5, 2011.
41 all-time records have been set at the station since 1970.
The annual mean temperature has changed by +0.9°F per decade since 1970.
The best time to visit East Chattanooga
The most comfortable time to visit is typically April and October to November, when daytime highs sit near 70°F.
Winter (December–February) is chilly, with average highs around 53°F and lows near 34°F. Snow is possible.
Spring (March–May) is warm, with average highs around 73°F and lows near 50°F.
Summer (June–August) is hot, with average highs around 89°F and lows near 69°F. It can feel humid.
Autumn (September–November) is warm, with average highs around 73°F and lows near 51°F.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Wind | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|---|
| January | 32° | 51° | 5.0 in | 11 | 6 mph | 69% | 38% | 78° | -10° |
| February | 35° | 56° | 5.0 in | 11 | 6 mph | 65% | 39% | 82° | 2° |
| March | 42° | 64° | 5.3 in | 11 | 7 mph | 60% | 38% | 88° | 9° |
| April | 50° | 73° | 4.9 in | 10 | 6 mph | 61% | 47% | 92° | 25° |
| May | 59° | 81° | 3.9 in | 11 | 5 mph | 67% | 39% | 96° | 34° |
| June | 67° | 88° | 4.2 in | 11 | 4 mph | 67% | 42% | 107° | 41° |
| July | 71° | 90° | 5.1 in | 12 | 4 mph | 72% | 36% | 107° | 51° |
| August | 70° | 90° | 3.7 in | 9 | 4 mph | 73% | 46% | 105° | 53° |
| September | 63° | 84° | 4.2 in | 8 | 4 mph | 69% | 49% | 103° | 40° |
| October | 51° | 74° | 3.6 in | 8 | 4 mph | 67% | 58% | 100° | 26° |
| November | 40° | 62° | 4.8 in | 9 | 5 mph | 65% | 50% | 86° | 13° |
| December | 35° | 53° | 5.3 in | 11 | 5 mph | 70% | 40% | 78° | -2° |
Station: CHATTANOOGA AP, 6 km from the city. Temperature normal baseline: 1991–2020, calculated from available NOAA GHCN-Daily observations. Available station history: 1970–2026; record values refer to this station and period, not the entire city’s history. Precipitation includes rain and the water equivalent of frozen precipitation; snowfall depth is shown separately when available. Sources and methods
From ERA5 reanalysis. Sunshine is estimated from cloud cover.
East Chattanooga climate questions
How much rain does East Chattanooga get?
East Chattanooga gets 55.0 in of precipitation in an average year, over about 123 rainy days.
What is the wettest month in East Chattanooga?
March is the wettest month in East Chattanooga, with 5.3 in. October is the driest, with 3.6 in.
How many rainy days does East Chattanooga have a year?
East Chattanooga has about 123 days with measurable rain in an average year. July has the most, about 12.
Does it snow in East Chattanooga?
Yes. East Chattanooga gets about 3.6 in of snow in an average season. The snowiest winter on record is 1992–93, with 22.7 in.
What is the hottest month in East Chattanooga?
July is the warmest month in East Chattanooga, with an average high of 90°F.
What is the coldest month in East Chattanooga?
January is the coldest month in East Chattanooga, with an average low of 32°F.
What is the record high temperature in East Chattanooga?
Within the available 1970–2026 station history, the record high at the East Chattanooga station is 107°F, set on June 30, 2012. The record low is -10°F, on January 21, 1985.
What is the sunniest month in East Chattanooga?
October is the sunniest month in East Chattanooga, with estimated sunshine of 58% of daylight hours from ERA5 cloud cover. July is the cloudiest.
When is the first frost in East Chattanooga?
The first fall freeze in East Chattanooga typically comes around November 6. The last spring freeze is around March 26.
What is the best time to visit East Chattanooga?
The most comfortable time to visit is typically April and October to November, when daytime highs sit near 70°F.