Weather History for Tri-Cities, TN

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Month of December, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 67 °F 54 °F 41 °F
Mean Temperature 59 °F 43 °F 32 °F
Min Temperature 55 °F 31 °F 18 °F
Degree Days  
Heating Degree Days (base 65) 33 22 6 682
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 8 1 0 20
Dew Point  
Dew Point 59 °F 34 °F 16 °F
Precipitation  
Precipitation 1.46 in 0.15 in 0.00 in 4.10 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 33 mph 3 mph 0 mph
Gust Wind 45 mph 23 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.57 in 30.19 in 29.55 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 13, 2011 Rise Set
Actual Time 7:32 AM EST 5:14 PM EST
Civil Twilight 7:03 AM EST 5:43 PM EST
Nautical Twilight 6:31 AM EST 6:15 PM EST
Astronomical Twilight 6:00 AM EST 6:47 PM EST
Moon 8:25 PM EST (12/13) 9:44 AM EST (12/13)
Length of Visible Light 10h 39m
Length of Day
9h 42m
Waning Gibbous, 90% of the Moon is Illuminated
Dec 13
Waning Gibbous
Dec 17
Last Quarter
Dec 24
New
Jan 1
First Quarter
Jan 9
Full

Weather History Calendar

Precipitation Actual month total 4.10 Normal Month Total: 3.37
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Fog
Actual:
53 | 21 0.00
Average:
52 | 31 0.11
Fog
Actual:
54 | 22 0.00
Average:
52 | 30 0.12
Partly Cloudy
Actual:
62 | 27 0.00
Average:
52 | 30 0.11
Partly Cloudy
Actual:
65 | 29 0.00
Average:
51 | 30 0.12
Rain
Actual:
67 | 43 0.03
Average:
51 | 30 0.11
Rain
Actual:
62 | 55 0.75
Average:
50 | 29 0.12
Snow
Actual:
57 | 33 1.46
Average:
50 | 29 0.11
Scattered Clouds
Actual:
44 | 24 T
Average:
50 | 29 0.11
Fog
Actual:
49 | 23 0.00
Average:
49 | 29 0.12
Fog
Actual:
41 | 23 0.00
Average:
49 | 29 0.12
Scattered Clouds
Actual:
50 | 18 0.00
Average:
49 | 28 0.11
Partly Cloudy
Actual:
55 | 26 0.00
Average:
49 | 28 0.12
Mostly Cloudy
Actual:
55 | 43 0.00
Average:
48 | 28 0.11
Partly Cloudy
Actual:
66 | 43 0.00
Average:
48 | 28 0.11
Rain
Actual:
66 | 37 0.02
Average:
48 | 28 0.11
Rain
Actual:
58 | 41 0.45
Average:
48 | 27 0.10
Rain
Actual:
41 | 29 0.01
Average:
47 | 27 0.11
Partly Cloudy
Actual:
46 | 29 0.00
Average:
47 | 27 0.10
Partly Cloudy
Actual:
54 | 24 0.00
Average:
47 | 27 0.10
Mostly Cloudy
Actual:
55 | 33 0.00
Average:
47 | 27 0.10
Rain
Actual:
63 | 41 0.14
Average:
47 | 27 0.11
Rain
Actual:
64 | 39 0.96
Average:
46 | 26 0.10
Rain
Actual:
50 | 42 T
Average:
46 | 26 0.11
Partly Cloudy
Actual:
47 | 30 0.00
Average:
46 | 26 0.11
Fog
Actual:
49 | 26 0.00
Average:
46 | 26 0.10
Fog
Actual:
46 | 24 0.00
Average:
46 | 26 0.10
Rain
Actual:
53 | 37 0.27
Average:
46 | 26 0.11
Rain
Actual:
43 | 27 T
Average:
46 | 26 0.10
Partly Cloudy
Actual:
50 | 23 0.00
Average:
46 | 26 0.11
Partly Cloudy
Actual:
60 | 27 0.01
Average:
45 | 26 0.10
Scattered Clouds
Actual:
56 | 33 0.00
Average:
45 | 25 0.10
 

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 53 37 21 32 25 19 100 71 41 30.37 30.29 30.23 10 7 0 5 0 6 0.00 Fog
2 54 38 22 32 25 19 96 64 32 30.50 30.43 30.36 10 8 0 7 1 10 0.00 Fog
3 62 45 27 32 27 24 92 60 27 30.51 30.45 30.39 10 10 10 8 2 13 0.00  
4 65 47 29 44 35 25 85 64 43 30.42 30.33 30.25 10 10 10 20 2 26 0.00  
5 67 55 43 54 47 41 89 71 52 30.23 30.12 30.02 10 10 10 13 4 18 0.03 Rain
6 62 59 55 59 56 53 100 89 78 30.06 29.97 29.89 10 5 0 8 1 13 0.75 Fog , Rain
7 57 45 33 54 42 26 100 93 86 30.15 29.86 29.68 10 5 2 18 7 26 1.46 Rain , Snow
8 44 34 24 27 25 22 92 73 53 30.34 30.27 30.16 10 10 9 12 1 15 T  
9 49 36 23 31 27 22 100 73 46 30.32 30.26 30.21 10 7 0 7 1 13 0.00 Fog
10 41 32 23 30 25 20 92 71 50 30.48 30.40 30.28 10 7 0 9 1 13 0.00 Fog
11 50 34 18 22 19 16 88 59 29 30.57 30.49 30.42 10 10 10 7 1 9 0.00  
12 55 41 26 37 28 21 81 61 41 30.51 30.44 30.38 10 10 10 6 1 8 0.00  
13 55 49 43 44 40 36 92 78 63 30.48 30.42 30.38 10 10 10 7 2 10 0.00  
14 66 55 43 45 42 40 93 69 44 30.37 30.28 30.16 10 10 9 7 1 8 0.00  
15 66 52 37 55 47 36 100 76 52 30.17 30.11 30.04 10 10 7 17 3 22 0.02 Rain
16 58 50 41 54 46 40 96 91 86 30.24 30.16 30.11 10 7 2 13 3 15 0.45 Rain
17 41 35 29 39 31 25 92 76 59 30.29 30.24 30.19 10 9 2 13 5 15 0.01 Rain
18 46 38 29 28 27 25 85 65 45 30.37 30.31 30.27 10 10 10 13 5 16 0.00  
19 54 39 24 29 26 21 92 60 28 30.31 30.25 30.18 10 10 9 13 1 16 0.00  
20 55 44 33 39 34 28 83 67 50 30.19 30.12 30.03 10 10 10 7 1 8 0.00  
21 63 52 41 58 50 39 100 86 72 30.02 29.93 29.83 10 8 0 18 4 25 0.14 Fog , Rain
22 64 52 39 57 49 39 100 83 65 30.08 29.95 29.80 10 4 0 20 3 24 0.96 Fog , Rain
23 50 46 42 45 41 38 92 82 71 30.28 30.17 30.00 10 9 6 15 5 18 T Rain
24 47 39 30 37 32 28 89 69 49 30.44 30.37 30.28 10 10 9 8 2 10 0.00  
25 49 38 26 37 31 25 100 81 61 30.38 30.32 30.21 10 6 0 15 2 18 0.00 Fog
26 46 35 24 33 27 22 100 77 53 30.41 30.28 30.01 10 5 0 6 1 9 0.00 Fog
27 53 45 37 45 36 20 93 62 31 29.99 29.71 29.55 10 9 5 33 13 45 0.27 Rain
28 43 35 27 32 27 24 85 67 49 30.08 30.01 29.83 10 10 10 20 9 25 T Rain
29 50 37 23 33 25 21 96 68 39 30.09 30.01 29.93 10 10 8 14 2 17 0.00  
30 60 44 27 44 33 25 92 65 37 30.05 29.93 29.80 10 10 10 20 4 28 0.01  
31 56 45 33 42 37 30 89 68 47 30.13 30.02 29.83 10 10 10 21 7 25 0.00