Weather History for Decatur, AL

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Month of September, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 91 °F 82 °F 71 °F
Mean Temperature 80 °F 70 °F 60 °F
Min Temperature 73 °F 59 °F 44 °F
Degree Days  
Heating Degree Days (base 65) 6 1 0 19
Cooling Degree Days (base 65) 16 6 0 170
Growing Degree Days (base 50) 30 20 10 598
Dew Point  
Dew Point 79 °F 62 °F 38 °F
Precipitation  
Precipitation 2.88 in 0.16 in 0.00 in 4.71 in
Snowdepth - - - -
Wind  
Wind 29 mph 3 mph 0 mph
Gust Wind 46 mph 26 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.30 in 30.04 in 29.72 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 15, 2012 Rise Set
Actual Time 6:31 AM CDT 6:53 PM CDT
Civil Twilight 6:05 AM CDT 7:19 PM CDT
Nautical Twilight 5:36 AM CDT 7:48 PM CDT
Astronomical Twilight 5:06 AM CDT 8:18 PM CDT
Moon 6:00 AM CDT (9/15) 6:26 PM CDT (9/15)
Length of Visible Light 13h 13m
Length of Day
12h 22m
Waning Crescent, 0% of the Moon is Illuminated
Sep 15
Waning Crescent
Sep 15
New
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last Quarter

Weather History Calendar

Precipitation Actual month total 4.71 Average Month Total: 3.62
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Thunderstorm
Actual:
84 | 73 0.06
Average:
87 | 64 0.07
Thunderstorm
Actual:
87 | 71 0.71
Average:
88 | 64 0.09
Rain
Actual:
81 | 71 0.06
Average:
87 | 64 0.12
Partly Cloudy
Actual:
89 | 73 0.00
Average:
86 | 63 0.21
Rain
Actual:
89 | 70 0.17
Average:
86 | 63 0.21
Rain
Actual:
91 | 66 0.01
Average:
87 | 62 0.09
Clear
Actual:
91 | 68 0.00
Average:
86 | 62 0.12
Rain
Actual:
79 | 57 0.02
Average:
86 | 63 0.08
Clear
Actual:
79 | 54 0.01
Average:
86 | 62 0.08
Clear
Actual:
82 | 54 0.00
Average:
86 | 62 0.04
Scattered Clouds
Actual:
84 | 55 0.01
Average:
85 | 60 0.06
Partly Cloudy
Actual:
81 | 62 0.00
Average:
85 | 60 0.27
Scattered Clouds
Actual:
82 | 57 0.00
Average:
84 | 60 0.08
Clear
Actual:
84 | 55 0.00
Average:
85 | 61 0.10
Clear
Actual:
86 | 57 0.00
Average:
86 | 60 0.14
Rain
Actual:
86 | 64 0.00
Average:
83 | 58 0.06
Thunderstorm
Actual:
80 | 68 2.88
Average:
82 | 60 0.18
Rain
Actual:
75 | 52 0.17
Average:
82 | 59 0.11
Clear
Actual:
75 | 46 0.01
Average:
83 | 58 0.11
Clear
Actual:
79 | 46 0.00
Average:
83 | 59 0.06
Clear
Actual:
80 | 51 0.01
Average:
83 | 59 0.11
Clear
Actual:
82 | 54 0.00
Average:
82 | 57 0.05
Clear
Actual:
75 | 50 0.01
Average:
81 | 56 0.09
Clear
Actual:
75 | 44 0.00
Average:
79 | 56 0.11
Clear
Actual:
81 | 51 0.04
Average:
79 | 55 0.32
Clear
Actual:
84 | 55 0.00
Average:
79 | 56 0.15
Scattered Clouds
Actual:
86 | 57 0.00
Average:
79 | 56 0.07
Thunderstorm
Actual:
87 | 60 0.00
Average:
78 | 55 0.21
Partly Cloudy
Actual:
79 | 62 0.00
Average:
78 | 53 0.08
Rain
Actual:
71 | 55 0.54
Average:
78 | 53 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

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 84 78 73 79 74 72 100 91 79 30.18 30.11 30.03 10 9 2 16 8 22 0.06 Rain , Thunderstorm
2 87 78 71 76 72 66 100 88 70 30.03 29.94 29.85 10 9 1 29 9 41 0.71 Rain , Thunderstorm
3 81 76 71 76 72 68 97 92 82 29.94 29.90 29.85 10 9 5 10 6 - 0.06 Rain
4 89 80 73 79 74 72 100 90 67 29.93 29.88 29.85 10 8 6 6 3 - 0.00  
5 89 78 70 75 74 69 100 87 65 29.96 29.90 29.83 10 6 3 29 3 46 0.17 Rain
6 91 78 66 75 70 66 100 88 57 30.02 29.95 29.87 10 8 0 7 1 - 0.01 Fog , Rain
7 91 79 68 75 72 67 100 80 54 29.98 29.90 29.79 10 8 2 9 3 - 0.00  
8 79 70 57 72 66 55 94 85 69 29.98 29.88 29.79 10 10 6 18 7 29 0.02 Rain
9 79 66 54 60 56 52 97 76 44 30.06 30.02 29.95 10 10 10 8 4 - 0.01  
10 82 68 54 63 57 53 97 75 39 30.15 30.11 30.06 10 10 9 5 2 16 0.00  
11 84 68 55 64 60 54 97 76 42 30.23 30.18 30.12 10 10 7 7 2 - 0.01  
12 81 70 62 64 61 58 93 74 48 30.30 30.23 30.19 10 10 10 9 3 - 0.00  
13 82 70 57 64 61 57 97 77 49 30.29 30.23 30.18 10 9 6 9 3 - 0.00  
14 84 70 55 65 60 55 97 76 42 30.25 30.21 30.17 10 9 5 9 2 - 0.00  
15 86 72 57 67 62 57 100 77 44 30.22 30.15 30.09 10 10 6 8 1 - 0.00  
16 86 74 64 69 66 63 97 78 49 30.10 30.05 29.99 10 10 6 5 1 - 0.00 Rain
17 80 74 68 72 69 67 100 95 72 29.99 29.84 29.75 10 5 0 15 5 21 2.88 Fog , Rain , Thunderstorm
18 75 64 52 68 64 49 100 89 66 30.04 29.82 29.72 10 9 2 16 4 24 0.17 Rain
19 75 60 46 54 48 44 96 71 35 30.15 30.09 30.04 10 10 10 10 3 - 0.01  
20 79 62 46 60 52 46 97 76 37 30.14 30.08 30.02 10 10 10 5 1 - 0.00  
21 80 65 51 59 55 50 100 76 39 30.11 30.03 29.95 10 10 9 10 3 - 0.01  
22 82 68 54 65 57 50 96 74 35 30.12 30.04 29.98 10 9 6 14 5 - 0.00  
23 75 62 50 51 45 38 93 62 26 30.24 30.19 30.12 10 10 10 8 4 - 0.01  
24 75 60 44 53 45 41 90 66 31 30.27 30.20 30.13 10 10 10 7 5 28 0.00  
25 81 66 51 58 53 49 96 69 39 30.17 30.13 30.09 10 10 10 10 4 - 0.04  
26 84 68 55 63 59 53 93 73 42 30.19 30.15 30.11 10 10 9 10 3 - 0.00  
27 86 70 57 69 64 57 100 82 53 30.20 30.14 30.07 10 8 5 5 1 - 0.00  
28 87 72 60 69 65 61 100 84 53 30.12 30.07 30.01 10 8 2 8 1 - 0.00 Thunderstorm
29 79 70 62 68 65 55 100 83 64 30.05 29.99 29.93 10 7 2 9 3 - 0.00  
30 71 62 55 63 59 54 100 88 68 29.94 29.82 29.72 10 7 2 9 4 - 0.54 Rain