Weather History for Chicago Executive, IL

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Month of September, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 88 °F 74 °F 59 °F
Mean Temperature 78 °F 63 °F 50 °F
Min Temperature 72 °F 52 °F 34 °F
Degree Days  
Heating Degree Days (base 65) 15 4 0 133
Cooling Degree Days (base 65) 13 3 0 81
Growing Degree Days (base 50) 30 14 0 406
Dew Point  
Dew Point 72 °F 50 °F 29 °F
Precipitation  
Precipitation 0.54 in 0.05 in 0.00 in 1.44 in
Snowdepth - - - -
Wind  
Wind 30 mph 7 mph 0 mph
Gust Wind 47 mph 21 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.37 in 30.02 in 29.74 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 02, 2012 Rise Set
Actual Time 6:18 AM CDT 7:22 PM CDT
Civil Twilight 5:49 AM CDT 7:51 PM CDT
Nautical Twilight 5:15 AM CDT 8:25 PM CDT
Astronomical Twilight 4:39 AM CDT 9:01 PM CDT
Moon 8:06 PM CDT (9/2) 8:30 AM CDT (9/2)
Length of Visible Light 14h 01m
Length of Day
13h 04m
Waning Gibbous, 95% of the Moon is Illuminated
Sep 2
Waning Gibbous
Sep 8
Last Quarter
Sep 15
New
Sep 22
First Quarter
Sep 29
Full

Weather History Calendar

Precipitation Actual month total 1.44 Normal Month Total: 3.21
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Partly Cloudy
Actual:
74 | 70 0.00
Average:
79 | 60 0.12
Partly Cloudy
Actual:
79 | 72 0.00
Average:
79 | 60 0.11
Rain
Actual:
86 | 69 T
Average:
79 | 60 0.10
Rain
Actual:
88 | 65 0.54
Average:
79 | 59 0.08
Rain
Actual:
88 | 63 0.01
Average:
78 | 59 0.12
Clear
Actual:
86 | 64 0.00
Average:
78 | 59 0.11
Rain
Actual:
79 | 58 0.07
Average:
78 | 58 0.11
Rain
Actual:
73 | 53 0.31
Average:
77 | 58 0.11
Scattered Clouds
Actual:
71 | 52 0.01
Average:
77 | 57 0.12
Clear
Actual:
76 | 50 0.00
Average:
77 | 57 0.11
Clear
Actual:
84 | 52 0.00
Average:
76 | 56 0.10
Clear
Actual:
87 | 63 0.00
Average:
76 | 56 0.10
Rain
Actual:
72 | 54 0.15
Average:
76 | 56 0.10
Scattered Clouds
Actual:
77 | 49 0.00
Average:
75 | 55 0.10
Clear
Actual:
80 | 49 0.00
Average:
75 | 55 0.10
Clear
Actual:
77 | 49 0.00
Average:
74 | 54 0.10
Rain
Actual:
79 | 51 0.21
Average:
74 | 54 0.09
Rain
Actual:
62 | 42 T
Average:
74 | 53 0.10
Scattered Clouds
Actual:
74 | 38 0.00
Average:
73 | 53 0.10
Clear
Actual:
72 | 49 0.00
Average:
73 | 52 0.11
Rain
Actual:
59 | 47 0.12
Average:
72 | 52 0.10
Rain
Actual:
59 | 45 0.01
Average:
72 | 51 0.09
Scattered Clouds
Actual:
61 | 39 0.00
Average:
71 | 51 0.11
Clear
Actual:
70 | 34 0.00
Average:
71 | 51 0.11
Clear
Actual:
78 | 46 0.00
Average:
71 | 50 0.10
Scattered Clouds
Actual:
66 | 51 0.00
Average:
70 | 50 0.11
Partly Cloudy
Actual:
64 | 44 0.00
Average:
70 | 49 0.11
Scattered Clouds
Actual:
66 | 46 0.00
Average:
69 | 49 0.11
Clear
Actual:
79 | 44 0.00
Average:
69 | 48 0.14
Scattered Clouds
Actual:
64 | 48 0.01
Average:
68 | 48 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
Sep high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 74 72 70 68 65 60 88 77 64 30.10 30.04 29.98 10 10 10 16 9 22 0.00  
2 79 76 72 70 68 66 90 79 65 29.97 29.93 29.91 10 10 10 14 8 20 0.00  
3 86 78 69 70 69 68 93 75 55 29.95 29.92 29.88 10 8 3 10 3 14 T Rain
4 88 77 65 72 69 59 94 79 49 29.95 29.89 29.83 10 10 10 30 6 47 0.54 Rain
5 88 76 63 67 63 60 93 69 46 29.95 29.82 29.75 10 10 2 24 6 33 0.01 Rain
6 86 75 64 66 61 49 90 65 29 29.94 29.91 29.84 10 10 8 14 4 17 0.00  
7 79 69 58 65 60 54 90 77 54 29.91 29.84 29.78 10 10 6 23 7 31 0.07 Rain
8 73 63 53 56 49 45 93 63 37 29.92 29.87 29.84 10 10 4 18 10 24 0.31 Rain
9 71 62 52 54 51 45 97 73 42 30.17 30.04 29.87 10 10 9 15 7 21 0.01  
10 76 63 50 52 49 46 89 62 35 30.24 30.17 30.11 10 10 10 15 4 18 0.00  
11 84 68 52 55 51 47 80 54 34 30.16 30.11 30.05 10 10 2 21 11 28 0.00  
12 87 75 63 58 56 53 75 52 35 30.17 30.12 30.08 10 10 9 18 8 25 0.00  
13 72 63 54 57 52 48 100 77 57 30.35 30.28 30.15 10 9 5 16 7 21 0.15 Rain
14 77 63 49 53 46 39 96 64 29 30.37 30.32 30.28 10 9 4 14 4 23 0.00  
15 80 65 49 50 48 42 89 59 27 30.32 30.24 30.15 10 10 10 10 2 14 0.00  
16 77 63 49 50 47 43 86 59 31 30.14 30.07 29.98 10 10 9 15 3 20 0.00  
17 79 65 51 60 55 48 90 75 45 29.98 29.85 29.74 10 10 6 20 7 24 0.21 Rain
18 62 52 42 52 40 31 87 63 33 30.06 29.92 29.81 10 10 9 21 10 28 T Rain
19 74 56 38 44 39 36 93 51 28 30.09 29.96 29.82 10 10 10 29 14 38 0.00  
20 72 61 49 48 38 31 80 44 24 29.95 29.89 29.83 10 10 10 20 6 26 0.00  
21 59 53 47 50 45 37 93 76 53 29.95 29.89 29.82 10 10 4 16 4 20 0.12 Rain
22 59 52 45 49 40 34 93 70 48 30.19 29.98 29.82 10 10 6 29 10 38 0.01 Rain
23 61 50 39 39 34 29 83 60 31 30.28 30.24 30.19 10 10 10 15 5 24 0.00  
24 70 52 34 37 33 29 89 49 24 30.24 30.08 29.91 10 10 10 21 9 26 0.00  
25 78 62 46 61 50 39 84 60 42 29.91 29.87 29.81 10 10 9 17 6 21 0.00  
26 66 59 51 59 50 41 97 73 58 30.19 30.05 29.90 10 9 5 17 7 24 0.00  
27 64 54 44 49 45 40 86 69 50 30.23 30.20 30.18 10 10 10 15 7 18 0.00  
28 66 56 46 51 48 45 89 72 54 30.21 30.17 30.14 10 10 10 18 7 24 0.00  
29 79 62 44 53 45 39 93 67 25 30.14 30.07 29.97 10 9 6 14 4 20 0.00  
30 64 56 48 52 46 41 93 71 46 30.03 30.00 29.97 10 10 8 15 6 21 0.01