Weather History for Decatur, IL

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Month of September, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 97 °F 82 °F 69 °F
Mean Temperature 84 °F 69 °F 58 °F
Min Temperature 72 °F 55 °F 41 °F
Degree Days  
Heating Degree Days (base 65) 7 1 0 43
Cooling Degree Days (base 65) 19 6 0 167
Growing Degree Days (base 50) 34 19 8 569
Dew Point  
Dew Point 71 °F 56 °F 35 °F
Precipitation  
Precipitation 0.38 in 0.02 in 0.00 in 0.59 in
Snowdepth - - - -
Wind  
Wind 28 mph 7 mph 0 mph
Gust Wind 35 mph 20 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.31 in 30.02 in 29.76 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 28, 2013 Rise Set
Actual Time 6:49 AM CDT 6:42 PM CDT
Civil Twilight 6:22 AM CDT 7:09 PM CDT
Nautical Twilight 5:50 AM CDT 7:40 PM CDT
Astronomical Twilight 5:18 AM CDT 8:12 PM CDT
Moon 12:36 AM CDT (9/28) 3:00 PM CDT (9/28)
Length of Visible Light 12h 47m
Length of Day
11h 53m
Waning Crescent, 36% of the Moon is Illuminated
Sep 28
Waning Crescent
Oct 4
New
Oct 11
First Quarter
Oct 18
Full
Oct 26
Last Quarter

Weather History Calendar

Precipitation Actual month total 0.59 Normal Month Total: 2.89
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Partly Cloudy
Actual:
84 | 68 0.00
Average:
83 | 60 0.14
Scattered Clouds
Actual:
85 | 62 0.00
Average:
83 | 60 0.12
Fog
Actual:
79 | 54 0.00
Average:
83 | 60 0.13
Clear
Actual:
85 | 53 0.00
Average:
82 | 59 0.12
Clear
Actual:
87 | 57 0.00
Average:
82 | 59 0.13
Clear
Actual:
87 | 58 0.00
Average:
82 | 59 0.12
Clear
Actual:
90 | 64 0.00
Average:
82 | 58 0.13
Rain
Actual:
88 | 68 T
Average:
81 | 58 0.12
Scattered Clouds
Actual:
96 | 67 0.00
Average:
81 | 57 0.12
Clear
Actual:
97 | 71 0.00
Average:
81 | 57 0.12
Clear
Actual:
95 | 70 0.00
Average:
81 | 57 0.12
Rain
Actual:
85 | 60 0.13
Average:
80 | 56 0.12
Scattered Clouds
Actual:
74 | 48 0.00
Average:
80 | 56 0.11
Clear
Actual:
74 | 41 0.00
Average:
80 | 55 0.11
Rain
Actual:
78 | 53 0.01
Average:
79 | 55 0.09
Partly Cloudy
Actual:
69 | 50 0.00
Average:
79 | 54 0.09
Partly Cloudy
Actual:
76 | 48 0.00
Average:
78 | 54 0.07
Rain
Actual:
85 | 63 T
Average:
78 | 53 0.07
Scattered Clouds
Actual:
93 | 72 T
Average:
78 | 53 0.07
Thunderstorm
Actual:
78 | 58 0.38
Average:
77 | 52 0.08
Scattered Clouds
Actual:
73 | 53 0.00
Average:
77 | 52 0.07
Clear
Actual:
75 | 44 0.00
Average:
76 | 51 0.07
Clear
Actual:
76 | 44 0.00
Average:
76 | 51 0.07
Rain
Actual:
80 | 44 0.01
Average:
76 | 50 0.07
Scattered Clouds
Actual:
83 | 53 0.00
Average:
75 | 50 0.07
Clear
Actual:
84 | 51 0.00
Average:
75 | 49 0.07
Clear
Actual:
83 | 46 0.00
Average:
74 | 49 0.07
Partly Cloudy
Actual:
84 | 49 T
Average:
74 | 49 0.08
Rain
Actual:
75 | 48 0.06
Average:
73 | 48 0.07
Fog
Actual:
76 | 42 0.00
Average:
73 | 48 0.07
 

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

2013 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 76 68 71 68 66 97 79 61 29.84 29.80 29.76 10 5 1 13 5 16 0.00  
2 85 74 62 64 59 55 81 59 37 29.96 29.90 29.82 10 10 10 14 9 17 0.00  
3 79 67 54 59 55 52 93 68 42 30.10 30.05 29.98 10 7 0 9 4 - 0.00 Fog
4 85 69 53 60 55 49 93 64 34 30.17 30.13 30.08 10 10 9 9 2 13 0.00  
5 87 72 57 63 58 54 90 62 34 30.21 30.17 30.14 10 10 7 9 2 14 0.00  
6 87 73 58 64 61 56 93 68 42 30.19 30.13 30.05 10 10 7 14 3 18 0.00  
7 90 77 64 66 63 59 87 62 37 30.06 29.99 29.92 10 9 4 18 7 24 0.00  
8 88 78 68 68 67 64 90 69 48 29.99 29.94 29.91 10 9 5 10 3 20 T Rain
9 96 82 67 71 69 65 93 66 39 29.96 29.93 29.89 10 6 2 18 9 22 0.00  
10 97 84 71 71 67 62 87 60 33 30.07 30.03 29.96 9 7 3 17 8 23 0.00  
11 95 83 70 70 65 60 84 59 33 30.12 30.06 30.01 10 8 5 18 8 24 0.00  
12 85 73 60 68 60 45 90 59 28 30.08 30.02 29.96 10 9 2 23 10 29 0.13 Rain
13 74 61 48 54 47 40 93 63 33 30.16 30.11 30.06 10 10 10 20 9 25 0.00  
14 74 58 41 45 41 35 92 59 25 30.19 30.13 30.07 10 10 10 13 6 15 0.00  
15 78 66 53 61 51 45 93 65 36 30.12 30.06 30.00 10 10 4 21 9 20 0.01 Rain
16 69 60 50 56 53 47 93 73 53 30.31 30.24 30.14 10 8 3 21 10 25 0.00  
17 76 62 48 53 50 46 93 67 41 30.31 30.22 30.10 10 9 7 24 6 16 0.00  
18 85 74 63 68 62 53 84 70 55 30.12 30.04 29.97 10 10 8 17 10 22 T Rain
19 93 83 72 70 68 65 87 64 41 30.00 29.93 29.84 10 9 6 20 12 30 T  
20 78 68 58 69 64 50 97 80 63 29.91 29.88 29.84 10 8 1 18 8 24 0.38 Rain , Thunderstorm
21 73 63 53 51 48 43 83 60 37 29.94 29.91 29.87 10 10 10 16 8 20 0.00  
22 75 60 44 49 45 41 93 62 31 30.05 30.00 29.96 10 10 7 8 3 14 0.00  
23 76 60 44 47 44 40 93 60 27 30.09 30.03 29.99 10 10 10 15 7 20 0.00  
24 80 62 44 59 51 43 92 67 42 30.01 29.94 29.86 10 10 9 9 5 12 0.01 Rain
25 83 68 53 59 55 51 93 65 37 29.92 29.88 29.85 10 10 9 12 5 15 0.00  
26 84 68 51 55 50 46 93 61 28 30.06 30.01 29.92 10 10 9 10 4 28 0.00  
27 83 65 46 53 48 43 86 58 30 30.16 30.09 30.05 10 10 9 15 5 23 0.00  
28 84 67 49 59 54 48 93 64 34 30.09 30.02 29.95 10 10 9 28 11 35 T  
29 75 62 48 63 52 43 90 62 33 30.06 30.01 29.97 10 10 10 17 7 22 0.06 Rain
30 76 59 42 60 52 41 100 72 43 30.02 29.97 29.92 10 8 0 17 6 21 0.00 Fog