Weather History for Chattanooga, TN

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Month of December, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 70 °F 56 °F 47 °F
Mean Temperature 59 °F 47 °F 40 °F
Min Temperature 50 °F 37 °F 27 °F
Degree Days  
Heating Degree Days (base 65) 25 18 6 566
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 10 1 0 45
Dew Point  
Dew Point 63 °F 38 °F 17 °F
Precipitation  
Precipitation 1.82 in 0.23 in 0.00 in 6.53 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 30 mph 4 mph 0 mph
Gust Wind 47 mph 19 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.56 in 30.23 in 29.71 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 18, 2011 Rise Set
Actual Time 7:43 AM EST 5:31 PM EST
Civil Twilight 7:15 AM EST 5:59 PM EST
Nautical Twilight 6:43 AM EST 6:31 PM EST
Astronomical Twilight 6:12 AM EST 7:02 PM EST
Moon 12:54 AM EST (12/18) 12:46 PM EST (12/18)
Length of Visible Light 10h 44m
Length of Day
9h 48m
Last Quarter, 42% of the Moon is Illuminated
Dec 18
Last Quarter
Dec 24
New
Jan 1
First Quarter
Jan 9
Full
Jan 16
Last Quarter

Weather History Calendar

Precipitation Actual month total 6.53 Normal Month Total: 4.90
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Fog
Actual:
56 | 28 0.00
Average:
56 | 36 0.18
Fog
Actual:
60 | 27 0.00
Average:
56 | 36 0.17
Fog
Actual:
64 | 32 0.00
Average:
55 | 35 0.18
Partly Cloudy
Actual:
63 | 43 0.00
Average:
55 | 35 0.18
Rain
Actual:
70 | 48 0.23
Average:
55 | 35 0.18
Thunderstorm
Actual:
62 | 50 1.82
Average:
54 | 35 0.17
Rain
Actual:
50 | 37 0.59
Average:
54 | 35 0.17
Scattered Clouds
Actual:
48 | 31 0.00
Average:
54 | 34 0.17
Fog
Actual:
52 | 28 0.00
Average:
53 | 34 0.17
Partly Cloudy
Actual:
47 | 34 0.00
Average:
53 | 34 0.17
Partly Cloudy
Actual:
50 | 31 0.00
Average:
53 | 34 0.17
Mostly Cloudy
Actual:
51 | 36 T
Average:
53 | 34 0.16
Fog
Actual:
59 | 45 0.00
Average:
52 | 33 0.16
Fog
Actual:
68 | 43 0.00
Average:
52 | 33 0.16
Rain
Actual:
66 | 50 0.29
Average:
52 | 33 0.15
Rain
Actual:
58 | 42 0.82
Average:
52 | 33 0.15
Partly Cloudy
Actual:
52 | 34 0.00
Average:
51 | 33 0.16
Scattered Clouds
Actual:
54 | 28 0.00
Average:
51 | 33 0.14
Fog
Actual:
58 | 30 0.00
Average:
51 | 32 0.15
Rain
Actual:
61 | 43 T
Average:
51 | 32 0.14
Rain
Actual:
66 | 48 0.96
Average:
51 | 32 0.15
Rain
Actual:
54 | 46 0.95
Average:
51 | 32 0.14
Mostly Cloudy
Actual:
50 | 40 0.00
Average:
50 | 32 0.15
Partly Cloudy
Actual:
51 | 38 0.00
Average:
50 | 32 0.16
Fog
Actual:
49 | 33 0.00
Average:
50 | 32 0.15
Rain
Actual:
49 | 30 0.05
Average:
50 | 32 0.14
Rain
Actual:
50 | 40 0.82
Average:
50 | 32 0.15
Partly Cloudy
Actual:
51 | 31 0.00
Average:
50 | 31 0.14
Scattered Clouds
Actual:
56 | 29 0.00
Average:
50 | 31 0.15
Partly Cloudy
Actual:
59 | 33 0.00
Average:
50 | 31 0.14
Scattered Clouds
Actual:
61 | 34 0.00
Average:
50 | 31 0.15
 

Calendar Legend

Sunny
Clear
Mostly Cloudy
Partly Sunny
Partly Cloudy
Mostly Sunny
Cloudy Rain Snow
Hail
Flurries
Thunderstorms Hazy
Fog
Sleet '?' denotes
'chance of'
Unknown

Daily Weather History & Observations

2011 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 56 42 28 35 30 25 92 65 38 30.39 30.33 30.22 10 10 10 10 1 14 0.00 Fog
2 60 44 27 41 32 25 100 70 40 30.51 30.44 30.38 10 6 0 6 1 8 0.00 Fog
3 64 48 32 38 31 26 92 59 25 30.52 30.45 30.39 10 10 10 17 3 25 0.00 Fog
4 63 53 43 48 41 32 77 64 50 30.40 30.32 30.22 10 10 10 16 5 22 0.00  
5 70 59 48 58 53 44 90 73 55 30.19 30.10 29.98 10 8 2 21 8 29 0.23 Rain
6 62 56 50 61 56 48 97 89 80 30.04 30.00 29.96 10 5 1 13 5 18 1.82 Rain , Thunderstorm
7 50 44 37 48 40 28 93 82 70 30.26 29.98 29.88 10 6 2 21 7 26 0.59 Rain
8 48 40 31 32 27 17 89 59 29 30.36 30.30 30.26 10 10 10 14 4 15 0.00  
9 52 40 28 37 30 25 100 72 44 30.34 30.29 30.24 10 7 0 9 1 12 0.00 Fog
10 47 41 34 31 27 21 82 66 49 30.50 30.44 30.33 10 10 10 15 8 21 0.00  
11 50 41 31 33 27 20 82 64 46 30.56 30.48 30.43 10 10 10 8 2 12 0.00  
12 51 44 36 41 35 32 85 68 50 30.48 30.45 30.42 10 10 10 6 1 7 T  
13 59 52 45 50 46 42 100 86 72 30.51 30.45 30.40 10 5 1 5 0 7 0.00 Fog
14 68 56 43 51 45 41 100 74 48 30.40 30.32 30.18 10 4 0 10 2 15 0.00 Fog
15 66 58 50 58 53 46 84 76 67 30.22 30.16 30.10 10 9 2 17 6 23 0.29 Rain
16 58 50 42 55 50 39 100 90 80 30.28 30.20 30.15 10 5 1 13 6 15 0.82 Rain
17 52 43 34 38 31 24 86 61 35 30.38 30.32 30.27 10 10 9 13 4 15 0.00  
18 54 41 28 34 30 26 92 67 41 30.43 30.36 30.32 10 10 10 8 1 10 0.00  
19 58 44 30 38 32 27 92 64 36 30.33 30.26 30.19 10 10 10 12 2 15 0.00 Fog
20 61 52 43 55 49 39 93 78 62 30.18 30.10 30.04 10 8 1 14 3 23 T Rain
21 66 57 48 63 56 46 97 75 52 30.02 29.94 29.89 10 6 1 16 7 24 0.96 Rain
22 54 50 46 53 48 45 100 89 77 30.10 29.97 29.84 10 9 2 14 3 22 0.95 Fog , Rain
23 50 45 40 45 40 35 86 76 66 30.36 30.26 30.11 10 10 10 13 7 18 0.00  
24 51 45 38 36 35 32 85 71 56 30.49 30.41 30.36 10 10 10 14 5 16 0.00  
25 49 41 33 42 36 32 92 84 76 30.41 30.36 30.30 10 6 0 8 1 10 0.00 Fog
26 49 40 30 40 32 28 96 78 60 30.38 30.27 30.02 10 6 0 14 3 20 0.05 Fog , Rain
27 50 45 40 45 40 34 92 81 70 30.04 29.83 29.71 10 6 1 30 11 47 0.82 Rain
28 51 41 31 36 30 27 89 64 38 30.16 30.10 30.04 10 10 10 17 3 25 0.00  
29 56 43 29 36 31 25 92 65 38 30.11 30.05 29.97 10 10 10 14 2 17 0.00  
30 59 46 33 50 42 30 92 80 67 30.04 29.97 29.86 10 10 9 20 6 25 0.00  
31 61 48 34 42 37 32 92 66 39 30.17 30.09 29.96 10 10 10 8 1 12 0.00