Weather History for Tri-Cities, TN

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Month of September, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 89 °F 78 °F 69 °F
Mean Temperature 79 °F 67 °F 54 °F
Min Temperature 72 °F 56 °F 39 °F
Degree Days  
Heating Degree Days (base 65) 11 1 0 44
Cooling Degree Days (base 65) 14 4 0 116
Growing Degree Days (base 50) 29 17 4 513
Dew Point  
Dew Point 72 °F 58 °F 31 °F
Precipitation  
Precipitation 2.00 in 0.24 in 0.00 in 6.01 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 28 mph 2 mph 0 mph
Gust Wind 36 mph 22 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.34 in 30.04 in 29.64 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 12, 2012 Rise Set
Actual Time 7:09 AM EDT 7:40 PM EDT
Civil Twilight 6:44 AM EDT 8:06 PM EDT
Nautical Twilight 6:13 AM EDT 8:37 PM EDT
Astronomical Twilight 5:42 AM EDT 9:08 PM EDT
Moon 3:30 AM EDT (9/12) 5:23 PM EDT (9/12)
Length of Visible Light 13h 22m
Length of Day
12h 30m
Waning Crescent, 14% of the Moon is Illuminated
Sep 12
Waning Crescent
Sep 15
New
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last Quarter

Weather History Calendar

Precipitation Actual month total 6.01 Normal Month Total: 2.99
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Thunderstorm
Actual:
89 | 69 0.18
Average:
84 | 60 0.11
Thunderstorm
Actual:
88 | 68 1.11
Average:
83 | 60 0.11
Rain
Actual:
83 | 68 T
Average:
83 | 60 0.11
Rain
Actual:
86 | 67 T
Average:
83 | 59 0.11
Rain
Actual:
85 | 72 0.44
Average:
83 | 59 0.10
Partly Cloudy
Actual:
85 | 66 T
Average:
82 | 59 0.10
Fog
Actual:
89 | 65 0.00
Average:
82 | 58 0.11
Rain
Actual:
79 | 53 0.41
Average:
82 | 58 0.10
Fog
Actual:
75 | 52 0.00
Average:
82 | 58 0.10
Fog
Actual:
76 | 52 0.00
Average:
81 | 57 0.10
Partly Cloudy
Actual:
80 | 52 0.00
Average:
81 | 57 0.10
Scattered Clouds
Actual:
82 | 54 0.00
Average:
81 | 57 0.11
Partly Cloudy
Actual:
81 | 52 0.00
Average:
80 | 56 0.11
Partly Cloudy
Actual:
82 | 57 0.00
Average:
80 | 56 0.11
Fog
Actual:
81 | 56 0.00
Average:
80 | 56 0.11
Rain
Actual:
78 | 60 T
Average:
79 | 55 0.10
Rain
Actual:
71 | 62 1.13
Average:
79 | 55 0.10
Rain
Actual:
69 | 58 2.00
Average:
79 | 54 0.10
Partly Cloudy
Actual:
72 | 49 0.00
Average:
78 | 54 0.09
Scattered Clouds
Actual:
77 | 49 0.00
Average:
78 | 54 0.10
Scattered Clouds
Actual:
78 | 53 0.00
Average:
77 | 53 0.10
Fog
Actual:
80 | 51 0.00
Average:
77 | 53 0.09
Clear
Actual:
69 | 44 0.00
Average:
77 | 52 0.10
Fog
Actual:
69 | 39 0.00
Average:
76 | 52 0.09
Partly Cloudy
Actual:
71 | 41 0.00
Average:
76 | 51 0.09
Scattered Clouds
Actual:
80 | 50 0.00
Average:
76 | 51 0.09
Partly Cloudy
Actual:
79 | 54 0.00
Average:
75 | 51 0.09
Thunderstorm
Actual:
77 | 58 0.05
Average:
75 | 50 0.09
Thunderstorm
Actual:
73 | 53 0.69
Average:
75 | 50 0.08
Fog
Actual:
70 | 49 T
Average:
74 | 49 0.09
 

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

2012 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Sep high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 89 79 69 72 69 66 97 72 47 30.16 30.10 30.01 10 9 2 15 2 20 0.18 Rain , Thunderstorm
2 88 78 68 72 69 67 100 78 55 30.10 30.01 29.88 10 5 0 28 3 35 1.11 Fog , Rain , Thunderstorm
3 83 76 68 72 68 66 97 81 65 30.03 29.93 29.88 10 10 6 13 2 16 T Rain
4 86 77 67 72 69 66 100 80 59 29.96 29.89 29.84 10 10 10 12 3 15 T Rain
5 85 79 72 72 71 70 100 81 61 29.99 29.90 29.81 10 8 1 10 3 16 0.44 Rain
6 85 76 66 72 69 66 100 78 55 30.02 29.92 29.85 10 10 3 12 3 15 T  
7 89 77 65 70 66 64 100 73 46 30.04 29.95 29.80 10 5 0 9 1 12 0.00 Fog
8 79 66 53 68 64 54 93 78 62 29.92 29.81 29.73 10 8 2 24 3 36 0.41 Rain
9 75 64 52 58 54 51 100 73 46 30.05 29.97 29.91 10 5 0 10 2 14 0.00 Fog
10 76 64 52 57 54 52 100 72 43 30.19 30.11 30.02 10 7 0 10 2 13 0.00 Fog
11 80 66 52 58 53 50 93 66 39 30.26 30.21 30.16 10 10 9 8 2 14 0.00  
12 82 68 54 60 56 54 100 70 39 30.33 30.26 30.20 10 8 3 8 1 14 0.00  
13 81 67 52 59 55 50 100 68 35 30.34 30.27 30.20 10 8 2 8 1 12 0.00  
14 82 70 57 61 57 54 93 66 39 30.26 30.20 30.15 10 10 9 7 1 12 0.00  
15 81 69 56 61 58 55 100 74 48 30.28 30.19 30.09 10 6 0 10 2 14 0.00 Fog
16 78 69 60 64 60 57 90 72 54 30.11 30.06 30.01 10 10 8 9 1 12 T Rain
17 71 67 62 66 64 60 100 89 78 30.03 29.95 29.76 10 5 1 7 0 9 1.13 Rain
18 69 64 58 65 63 54 100 89 78 29.92 29.75 29.64 10 5 1 17 4 22 2.00 Rain
19 72 61 49 55 50 47 93 67 41 30.16 30.05 29.96 10 10 9 8 1 12 0.00  
20 77 63 49 58 53 49 96 70 43 30.12 30.06 30.00 10 10 8 13 2 16 0.00  
21 78 66 53 60 57 53 100 74 47 30.11 30.01 29.93 10 8 2 13 2 16 0.00  
22 80 66 51 61 56 46 100 73 46 30.05 29.97 29.90 10 7 0 22 6 26 0.00 Fog
23 69 57 44 47 41 31 93 61 28 30.19 30.12 30.05 10 9 1 13 3 17 0.00  
24 69 54 39 44 40 36 100 65 30 30.30 30.22 30.12 10 7 0 7 1 10 0.00 Fog
25 71 56 41 52 47 41 100 71 41 30.21 30.16 30.11 10 10 7 16 1 21 0.00  
26 80 65 50 59 55 50 100 71 42 30.21 30.16 30.12 10 9 4 13 2 17 0.00  
27 79 67 54 62 58 54 100 74 48 30.23 30.16 30.09 10 7 2 10 2 14 0.00  
28 77 68 58 65 61 57 100 82 64 30.16 30.06 30.00 10 7 2 13 1 16 0.05 Rain , Thunderstorm
29 73 63 53 63 62 53 100 84 68 30.06 29.99 29.90 10 5 1 14 1 17 0.69 Rain , Thunderstorm
30 70 60 49 54 52 44 100 70 40 29.99 29.91 29.83 10 5 0 6 0 7 T Fog