World Resorts USA Chattanooga Weather

Chattanooga weather in September

Weather in Chattanooga: September

Average day temperature: 80.6°F
Average night temperature: 63.7°F
Number of sunny days: 15 days
Day length: 11.8 - 12.9 hours
Number of rainy days: 2 days
Precipitation totals: 1.0 in.

Air temperature in September, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
16
32
48
64
80
96
112
Day temperature   
Night temperature

The highest day temperature during September of 2024 was 94°F. At the same time the lowest night temperature was 51°F. Daily and nightly averages during September were 80.3°F and 64.4°F.

Sunny, partly cloudy and cloudy days
Sunny days
Partly cloudy days
Cloudy days
50%
23%
27%

Mostly all days in September are sunny but cloudy days are also possible.

Precipitation total in September, in.

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.4
0.8
1.2
1.6
2.0
2.5
2.9
1.2
1.0
1.7
1.9
1.4
1.3
2.1
2.4
2.0
1.8
1.2
1.0
1.7
1.9
1.4
1.3
2.1
2.4
2.0
1.8

Precipitation total value in Chattanooga in September is 1.0 in. Other months of the year show relatively similar values.

Wind speed in September, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.0
2.1
3.1
4.1
5.1
6.2
7.2
5.1
4.6
4.3
3.5
3.4
4.2
4.8
5.7
6.0
5.6
5.4
5.1
4.6
4.3
3.8
3.5
3.4
4.2
4.8
5.7
6.0
5.6
5.4

The average wind speed value in September is 3.8 mph It makes September one of the least windy months of the year.

Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.5
2.9
4.4
5.9
7.3
8.8
10.3
4.6
6.3
7.4
8.0
6.9
8.5
7.5
7.5
6.6
5.1
5.0
4.6
6.3
7.4
7.8
8.0
6.9
8.5
7.5
7.5
6.6
5.1
5.0

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 7.8.

Best time for vacation in Chattanooga

Sunniest months:
October 15 days
September 15 days
November 14 days
Warmest months:
July 87.0 °F
August 86.3 °F
June 83.7 °F
Coldest months:
January 46.4 °F
December 51.4 °F
February 52.6 °F
Rainiest months:
March 5 days
February 5 days
April 5 days
Windiest months:
March 6.0 mph
April 5.7 mph
February 5.6 mph

Chattanooga on a weather map

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24 Hours Forecast
Chattanooga
Local time: 01:19
April 06, sunday
0300
70°F
N
11 mph
0600
68°F
NE
11 mph
0900
68°F
W
2 mph
1200
66°F
SW
3 mph
1500
66°F
W
2 mph
1800
66°F
SW
1 mph
2100
63°F
E
3 mph
April 07, monday
0000
63°F
E
6 mph
Units of measurement: °C / °F