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2024 Compare Climate & Weather:
Chattanooga, TN vs Washington, DC

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Highlights

On average, there are 203 sunny days per year in Washington. Chattanooga averages 207 sunny days per year. The US average is 205 sunny days.

Washington, District of Columbia gets 43.3 inches of rain, on average, per year. Chattanooga, Tennessee gets 51.1 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Washington averages 13.7 inches of snow per year. Chattanooga averages 1.5 inches of snow per year. The US average is 27.8 inches of snow per year.


Weather Highlights

Washington, District of Columbia
Summer High:
the July high is around 88.5 degrees
Winter Low: the January low is 26.5
Rain: averages 43.3 inches of rain a year
Snow: averages 13.7 inches of snow a year

Chattanooga, Tennessee
Summer High:
the July high is around 89 degrees
Winter Low: the January low is 28.9
Rain: averages 51.1 inches of rain a year
Snow: averages 1.5 inches of snow a year


BESTPLACES COMFORT INDEX
Washington

The annual BestPlaces Comfort Index for Washington is 7.3 (10=best), which means it is one of the most pleasant places in the District of Columbia.

7.3 / 10
September, May and October are the most pleasant months in Washington, while January and February are the least comfortable months.

Chattanooga

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

7.5 / 10
May, September and October are the most pleasant months in Chattanooga, while January and July are the least comfortable months.


Today's Weather - Chattanooga, TN

1 AM PST

Mostly Clear

67°F

DAYDESCRIPTIONHIGH / LOWWIND
OvernightMostly Clear64° / 88°S 0 mph
Tuesday NightMostly Clear66° / 88°S 0 to 5 mph
Wednesday NightMostly Cloudy68° / 88°S 0 to 5 mph
Thursday NightSlight Chance Showers And Thunderstorms69° / 87°S 0 to 5 mph
Friday NightChance Showers And Thunderstorms67° / 87°SW 0 to 5 mph
Saturday NightChance Showers And Thunderstorms68° / 87°SW 0 to 5 mph
Sunday NightShowers And Thunderstorms Likely then Chance Showers And Thunderstorms69° / 85°S 0 to 5 mph

Today's Weather - Washington, DC

1 AM PST

Patchy Fog

65°F

DAYDESCRIPTIONHIGH / LOWWIND
OvernightPatchy Fog59° / 84°S 3 mph
Tuesday NightMostly Clear62° / 89°S 5 to 8 mph
Wednesday NightSlight Chance Showers And Thunderstorms then Mostly Cloudy70° / 86°S 5 to 8 mph
Thursday NightShowers And Thunderstorms Likely67° / 84°W 5 to 8 mph
Friday NightChance Showers And Thunderstorms65° / 79°S 3 mph
Saturday NightShowers And Thunderstorms Likely then Chance Showers And Thunderstorms64° / 82°NE 5 mph
Sunday NightChance Showers And Thunderstorms66° / 80°SE 6 mph

Average Monthly High / Low (°F)
MonthChattanooga, TNWashington, DC
January50° / 29°43° / 27°
February54° / 32°47° / 29°
March63° / 39°56° / 36°
April72° / 46°67° / 45°
May79° / 55°76° / 55°
June86° / 64°85° / 64°
July89° / 68°89° / 69°
August89° / 67°87° / 67°
September83° / 60°80° / 60°
October73° / 48°69° / 48°
November62° / 38°58° / 39°
December52° / 31°47° / 30°

Hot, Freezing, Rainy, Snowy Days: Chattanooga / Washington
MonthHot DaysFreezing DaysRainy DaysSnowy Days
January0 / 020 / 229 / 100 / 3
February0 / 015 / 189 / 90 / 2
March0 / 08 / 119 / 100 / 1
April0 / 12 / 28 / 100 / 0
May1 / 20 / 08 / 120 / 0
June8 / 70 / 09 / 100 / 0
July13 / 130 / 09 / 100 / 0
August13 / 100 / 08 / 90 / 0
September4 / 30 / 07 / 90 / 0
October0 / 02 / 16 / 80 / 0
November0 / 09 / 78 / 90 / 0
December0 / 017 / 199 / 100 / 1
July is the hottest month for Chattanooga with an average high temperature of 89.0°, which ranks it as warmer than most places in Tennessee. In Chattanooga, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Chattanooga are May, September and October.

July is the hottest month for Washington with an average high temperature of 88.5°, which ranks it as one of the hottest places in the District of Columbia. In Washington, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Washington are September, May and June.


January has the coldest nighttime temperatures for Chattanooga with an average of 28.9°. This is one of the warmest places in Tennessee.

January has the coldest nighttime temperatures for Washington with an average of 26.5°. This is one of the warmest places in the District of Columbia.



In Chattanooga, there are 39.0 days annually when the high temperature is over 90°, which is hotter than most places in Tennessee.

In Washington, there are 35.8 days annually when the high temperature is over 90°, which is one of the hottest places in the District of Columbia.



In Chattanooga, there are 71.4 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Tennessee.

In Washington, there are 79.3 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in the District of Columbia.



In Chattanooga, there are 0.1 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Tennessee.

In Washington, there are 0.3 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in the District of Columbia.



December is the wettest month in Chattanooga with 4.9 inches of rain, and the driest month is October with 3.2 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 Chattanooga means that it is drier than most places in Tennessee.


July is the wettest month in Washington with 4.4 inches of rain, and the driest month is February with 2.8 inches. The wettest season is Autumn with 27% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 43.3 inches in Washington means that it is one of the wettest places in the District of Columbia.


December is the rainiest month in Chattanooga with 9.2 days of rain, and October is the driest month with only 6.3 rainy days. There are 99.0 rainy days annually in Chattanooga, which is one of the least rainy 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.

May is the rainiest month in Washington with 11.5 days of rain, and October is the driest month with only 8.1 rainy days. There are 114.3 rainy days annually in Washington, which is one of the rainiest places in the District of Columbia. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 22% chance of a rainy day.



An annual snowfall of 1.5 inches in Chattanooga means that it is one of the least snowy places in Tennessee.

An annual snowfall of 13.7 inches in Washington means that it is one of the snowiest places in the District of Columbia.



January is the snowiest month in Chattanooga with 0.6 inches of snow, and 1 month of the year have significant snowfall.

January is the snowiest month in Washington with 5.5 inches of snow, and 5 months of the year have significant snowfall.


DID YOU KNOW?

Many people confuse Weather and Climate, but they are different. Weather refers to the conditions of the atmosphere over a short period of time, while Climate refers to the conditions of the atmosphere over a long period of time.

Weather, more specifically, refers to how the atmosphere behaves and its effects on life and human activities. Most people think of Weather in terms of what can be observed: temperature, humidity, precipitation, and cloudy/sunny conditions. Weather conditions constantly change on a minute-to-minute basis.

Climate is a record of the average weather conditions for a given place over a long period of time, often referred to as Climate Normals. A 30-year period of record is a common requirement to be considered a Climate Normal.


Reviews for Chattanooga    2 Reviews

Over 15 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't  More

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Over 15 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but  More

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Reviews for Washington    2 Reviews

Over 15 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't  More

   |    Reply

Over 15 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but  More

   |    Reply

Start Your Review of Washington

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ZIPS IN CHATTANOOGA, TENNESSEE
37421, 37343, 37415, 37411, 37405, 37416, 37406, 37404, 37407, 37403, 16 total
ZIPS IN WASHINGTON, DISTRICT OF COLUMBIA
20011, 20002, 20019, 20020, 20009, 20001, 20032, 20016, 20010, 20003, 45 total

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