Weather History for Decatur, IL

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Month of August, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 99 °F 88 °F 78 °F
Mean Temperature 83 °F 75 °F 66 °F
Min Temperature 74 °F 60 °F 50 °F
Degree Days  
Heating Degree Days (base 65) 0 0 0 0
Cooling Degree Days (base 65) 18 10 1 296
Growing Degree Days (base 50) 32 24 14 747
Dew Point  
Dew Point 76 °F 59 °F 41 °F
Precipitation  
Precipitation 1.24 in 0.10 in 0.00 in 2.74 in
Snowdepth - - - -
Wind  
Wind 32 mph 6 mph 0 mph
Gust Wind 49 mph 21 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.17 in 29.98 in 29.74 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Aug. 15, 2012 Rise Set
Actual Time 6:07 AM CDT 7:51 PM CDT
Civil Twilight 5:38 AM CDT 8:19 PM CDT
Nautical Twilight 5:03 AM CDT 8:54 PM CDT
Astronomical Twilight 4:26 AM CDT 9:31 PM CDT
Moon 4:04 AM CDT (8/15) 6:24 PM CDT (8/15)
Length of Visible Light 14h 40m
Length of Day
13h 43m
Waning Crescent, 4% of the Moon is Illuminated
Aug 15
Waning Crescent
Aug 17
New
Aug 24
First Quarter
Aug 31
Full
Sep 8
Last Quarter

Weather History Calendar

Precipitation Actual month total 2.74 Normal Month Total: 3.65
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Clear
Actual:
93 | 62 0.00
Average:
86 | 64 0.09
Thunderstorm
Actual:
99 | 59 T
Average:
85 | 64 0.08
Scattered Clouds
Actual:
93 | 67 0.00
Average:
85 | 64 0.08
Scattered Clouds
Actual:
95 | 70 0.00
Average:
85 | 64 0.09
Thunderstorm
Actual:
89 | 65 0.55
Average:
85 | 64 0.09
Clear
Actual:
90 | 60 0.00
Average:
85 | 64 0.09
Clear
Actual:
96 | 58 0.00
Average:
85 | 63 0.10
Scattered Clouds
Actual:
95 | 68 0.04
Average:
85 | 63 0.09
Rain
Actual:
93 | 66 T
Average:
85 | 63 0.09
Partly Cloudy
Actual:
80 | 60 0.00
Average:
85 | 63 0.09
Clear
Actual:
83 | 55 0.00
Average:
85 | 63 0.10
Scattered Clouds
Actual:
83 | 51 T
Average:
85 | 63 0.10
Thunderstorm
Actual:
78 | 64 0.20
Average:
85 | 63 0.10
Partly Cloudy
Actual:
83 | 62 0.00
Average:
85 | 63 0.11
Clear
Actual:
89 | 61 0.00
Average:
85 | 63 0.11
Thunderstorm
Actual:
84 | 65 1.24
Average:
84 | 63 0.12
Clear
Actual:
78 | 57 0.00
Average:
84 | 63 0.13
Scattered Clouds
Actual:
80 | 51 0.00
Average:
84 | 63 0.14
Scattered Clouds
Actual:
79 | 58 0.00
Average:
84 | 63 0.15
Scattered Clouds
Actual:
82 | 53 0.00
Average:
84 | 63 0.15
Scattered Clouds
Actual:
84 | 54 0.00
Average:
84 | 63 0.14
Clear
Actual:
90 | 50 0.00
Average:
84 | 62 0.14
Clear
Actual:
93 | 56 0.00
Average:
84 | 62 0.14
Clear
Actual:
94 | 58 0.00
Average:
84 | 62 0.14
Clear
Actual:
92 | 59 0.00
Average:
84 | 62 0.14
Rain
Actual:
90 | 70 0.21
Average:
84 | 62 0.15
Rain
Actual:
88 | 66 0.08
Average:
84 | 62 0.14
Clear
Actual:
91 | 58 0.00
Average:
84 | 61 0.14
Clear
Actual:
91 | 58 0.00
Average:
83 | 61 0.14
Clear
Actual:
93 | 58 0.00
Average:
83 | 61 0.14
Rain
Actual:
86 | 74 0.42
Average:
83 | 61 0.14
 

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
Aug high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 93 78 62 65 60 56 93 62 30 29.98 29.92 29.86 10 10 9 9 4 14 0.00  
2 99 79 59 70 63 56 87 59 31 29.90 29.83 29.74 10 10 10 28 7 38 T Rain , Thunderstorm
3 93 80 67 70 68 65 93 69 44 29.89 29.85 29.81 10 10 5 14 7 21 0.00  
4 95 83 70 75 71 68 93 69 44 29.91 29.87 29.83 10 8 2 20 8 26 0.00  
5 89 77 65 76 65 56 100 67 34 30.15 30.04 29.89 10 9 2 21 9 28 0.55 Rain , Thunderstorm
6 90 75 60 62 55 48 84 55 26 30.17 30.10 30.01 10 10 10 12 2 15 0.00  
7 96 77 58 62 57 54 86 56 26 30.02 29.98 29.93 10 10 10 10 4 17 0.00  
8 95 82 68 68 63 60 84 59 33 29.98 29.94 29.90 10 10 10 24 6 29 0.04  
9 93 80 66 66 63 59 93 64 34 29.95 29.85 29.75 10 10 10 21 8 25 T Rain
10 80 70 60 63 57 48 93 66 39 29.99 29.90 29.83 10 10 8 21 13 26 0.00  
11 83 69 55 50 47 41 72 48 23 30.03 30.00 29.98 10 10 10 18 5 26 0.00  
12 83 67 51 59 52 46 83 58 33 30.05 30.00 29.93 10 10 10 18 5 22 T  
13 78 71 64 66 63 60 93 78 62 30.01 29.92 29.88 10 9 4 16 9 20 0.20 Rain , Thunderstorm
14 83 73 62 61 60 55 93 67 40 30.00 29.96 29.92 10 8 2 14 5 16 0.00  
15 89 75 61 60 57 52 84 57 29 30.00 29.95 29.90 10 10 10 15 7 28 0.00  
16 84 75 65 69 65 57 100 79 57 29.96 29.88 29.78 10 8 0 32 11 49 1.24 Fog , Rain , Thunderstorm
17 78 68 57 57 53 50 86 63 39 30.05 30.01 29.96 10 10 10 15 7 20 0.00  
18 80 66 51 56 51 45 89 60 31 30.05 29.99 29.93 10 10 10 10 2 15 0.00  
19 79 69 58 56 52 46 84 58 32 29.98 29.95 29.92 10 10 10 13 4 - 0.00  
20 82 68 53 55 53 49 86 60 33 30.00 29.97 29.93 10 10 10 13 4 23 0.00  
21 84 69 54 58 52 47 93 61 28 30.09 30.05 30.00 10 10 9 10 3 24 0.00  
22 90 70 50 56 49 42 89 54 19 30.12 30.07 30.03 10 10 10 10 3 14 0.00  
23 93 75 56 60 54 51 86 56 26 30.10 30.06 30.02 10 10 10 13 4 16 0.00  
24 94 76 58 61 56 54 87 58 28 30.05 30.01 29.95 10 10 10 13 5 16 0.00  
25 92 76 59 64 58 55 84 57 30 30.07 30.02 29.98 10 10 10 20 7 30 0.00  
26 90 80 70 73 68 64 87 67 47 30.06 30.00 29.93 10 10 5 20 8 30 0.21 Rain
27 88 77 66 72 67 55 93 64 35 30.10 30.03 29.96 10 9 2 18 8 29 0.08 Rain
28 91 75 58 62 56 49 93 59 24 30.13 30.07 30.01 10 10 9 15 4 21 0.00  
29 91 75 58 63 59 55 93 65 36 30.09 30.04 29.98 10 10 10 12 4 24 0.00  
30 93 76 58 61 56 52 93 60 26 30.06 30.02 29.98 10 10 9 13 5 15 0.00  
31 86 80 74 73 69 56 94 74 53 30.11 30.03 29.98 10 10 6 15 9 20 0.42 Rain