Weather History for Cahokia, IL

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Month of September, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 93 °F 78 °F 66 °F
Mean Temperature 80 °F 67 °F 52 °F
Min Temperature 73 °F 56 °F 37 °F
Degree Days  
Heating Degree Days (base 65) 12 2 0 64
Cooling Degree Days (base 65) 15 4 0 127
Growing Degree Days (base 50) 30 17 2 511
Dew Point  
Dew Point 74 °F 56 °F 30 °F
Precipitation  
Precipitation 0.67 in 0.09 in 0.00 in 2.60 in
Snowdepth - - - -
Wind  
Wind 24 mph 4 mph 0 mph
Gust Wind 41 mph 22 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.35 in 30.02 in 29.64 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 19, 2012 Rise Set
Actual Time 6:46 AM CDT 7:01 PM CDT
Civil Twilight 6:19 AM CDT 7:28 PM CDT
Nautical Twilight 5:48 AM CDT 7:59 PM CDT
Astronomical Twilight 5:16 AM CDT 8:30 PM CDT
Moon 10:52 AM CDT (9/19) 9:14 PM CDT (9/19)
Length of Visible Light 13h 08m
Length of Day
12h 15m
Waxing Crescent, 17% of the Moon is Illuminated
Sep 19
Waxing Crescent
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last Quarter
Oct 15
New

Weather History Calendar

Precipitation Actual month total 2.60 Average Month Total: 2.79
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Rain
Actual:
82 | 73 0.11
Average:
81 | 61 0.00
Rain
Actual:
84 | 73 0.24
Average:
83 | 63 0.00
Partly Cloudy
Actual:
87 | 72 0.00
Average:
83 | 65 0.15
Rain
Actual:
91 | 69 0.01
Average:
82 | 64 0.00
Rain
Actual:
84 | 69 0.05
Average:
84 | 62 0.08
Rain
Actual:
91 | 66 0.04
Average:
78 | 62 0.00
Thunderstorm
Actual:
93 | 63 0.47
Average:
83 | 60 0.00
Scattered Clouds
Actual:
73 | 57 0.01
Average:
78 | 62 0.01
Scattered Clouds
Actual:
75 | 54 0.00
Average:
76 | 61 0.00
Fog
Actual:
79 | 50 0.00
Average:
80 | 58 0.00
Clear
Actual:
84 | 53 0.00
Average:
78 | 60 0.00
Scattered Clouds
Actual:
84 | 57 0.00
Average:
81 | 61 0.07
Partly Cloudy
Actual:
86 | 61 0.00
Average:
82 | 66 0.00
Rain
Actual:
70 | 57 0.13
Average:
81 | 61 0.00
Fog
Actual:
68 | 50 0.01
Average:
70 | 60 0.23
Partly Cloudy
Actual:
73 | 61 0.00
Average:
71 | 59 0.46
Thunderstorm
Actual:
73 | 60 0.67
Average:
75 | 60 0.01
Rain
Actual:
68 | 48 0.03
Average:
75 | 63 0.28
Clear
Actual:
75 | 43 0.00
Average:
74 | 61 0.05
Scattered Clouds
Actual:
79 | 52 0.01
Average:
76 | 62 0.49
Scattered Clouds
Actual:
82 | 52 0.00
Average:
75 | 59 0.00
Clear
Actual:
70 | 46 0.00
Average:
75 | 56 0.00
Clear
Actual:
66 | 39 0.00
Average:
75 | 55 0.00
Clear
Actual:
72 | 37 0.00
Average:
74 | 53 0.00
Thunderstorm
Actual:
84 | 59 0.58
Average:
70 | 54 0.07
Thunderstorm
Actual:
77 | 62 0.03
Average:
70 | 52 0.25
Rain
Actual:
70 | 60 0.00
Average:
57 | 51 0.44
Rain
Actual:
72 | 51 0.20
Average:
61 | 46 0.00
Fog
Actual:
75 | 46 0.00
Average:
69 | 51 0.00
Clear
Actual:
73 | 50 0.01
Average:
68 | 48 0.20
 

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 82 78 73 73 72 71 94 87 74 29.87 29.82 29.75 10 10 5 15 8 29 0.11 Rain
2 84 78 73 73 72 71 100 83 66 29.82 29.79 29.75 10 9 2 14 5 23 0.24 Rain
3 87 80 72 72 71 70 93 82 59 29.90 29.86 29.82 10 10 9 12 8 - 0.00  
4 91 80 69 73 70 65 97 76 43 29.91 29.87 29.83 10 8 2 6 1 - 0.01 Rain
5 84 76 69 74 70 64 97 84 67 29.91 29.85 29.80 10 9 0 18 4 38 0.05 Fog , Rain
6 91 80 66 74 69 64 100 87 50 29.97 29.90 29.86 10 4 0 8 0 - 0.04 Fog , Rain
7 93 77 63 71 66 61 93 77 47 29.89 29.80 29.64 10 9 2 24 7 39 0.47 Rain , Thunderstorm
8 73 65 57 61 52 47 87 63 39 30.03 29.97 29.90 10 10 10 17 13 24 0.01  
9 75 64 54 53 52 50 93 68 41 30.12 30.04 29.94 10 10 10 13 5 24 0.00  
10 79 64 50 56 52 48 96 76 40 30.23 30.16 30.11 10 8 0 7 1 - 0.00 Fog
11 84 68 53 60 56 52 96 68 39 30.18 30.13 30.08 10 10 9 10 3 16 0.00  
12 84 70 57 61 57 55 90 68 37 30.19 30.14 30.10 10 10 10 14 3 21 0.00  
13 86 72 61 65 59 54 90 68 41 30.29 30.20 30.14 10 10 8 20 5 25 0.00  
14 70 64 57 57 56 54 94 83 61 30.35 30.30 30.27 10 9 3 12 8 - 0.13 Rain
15 68 59 50 57 52 48 100 81 59 30.31 30.25 30.14 10 8 0 8 1 - 0.01 Fog
16 73 67 61 64 61 56 97 82 68 30.13 30.05 29.99 10 9 3 6 1 - 0.00  
17 73 66 60 67 64 58 100 91 73 29.99 29.88 29.78 10 4 0 18 2 26 0.67 Fog , Rain , Thunderstorm
18 68 58 48 55 45 40 90 65 37 30.10 29.99 29.87 10 10 8 20 12 29 0.03 Rain
19 75 58 43 49 45 42 97 63 34 30.15 30.06 29.96 10 10 10 12 3 20 0.00  
20 79 66 52 54 46 37 86 55 24 30.00 29.97 29.95 10 10 10 13 4 20 0.01  
21 82 67 52 62 52 44 89 61 31 30.01 29.85 29.70 10 10 10 16 4 25 0.00  
22 70 58 46 51 40 30 93 57 24 30.23 30.08 29.90 10 10 10 16 6 21 0.00  
23 66 52 39 43 38 33 93 62 28 30.34 30.28 30.24 10 10 10 8 1 - 0.00  
24 72 54 37 47 41 36 100 66 30 30.27 30.15 29.96 10 9 1 12 3 20 0.00  
25 84 72 59 68 60 47 94 76 55 29.99 29.90 29.81 10 8 1 15 6 41 0.58 Rain , Thunderstorm
26 77 68 62 66 63 62 100 91 64 30.09 30.00 29.92 10 7 1 10 5 24 0.03 Rain , Thunderstorm
27 70 65 60 64 62 61 100 92 76 30.17 30.11 30.08 10 4 0 7 1 - 0.00 Fog , Rain
28 72 63 51 59 51 46 96 70 41 30.19 30.13 30.09 10 9 2 10 5 - 0.20 Rain
29 75 60 46 53 49 46 100 84 37 30.15 30.11 30.00 10 6 0 10 1 - 0.00 Fog
30 73 62 50 56 52 48 97 76 44 29.98 29.91 29.85 10 9 3 7 1 - 0.01