History for Alton, IL

Month of August, 2012 — View Current Conditions
Month of August, 2012
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Daily Weekly Monthly Custom
  Max Avg Min Sum
Temperature
Max Temperature 102 °F 91 °F 80 °F
Mean Temperature 87 °F 77 °F 68 °F
Min Temperature 78 °F 65 °F 54 °F
Degree Days
Heating Degree Days (base 65) 0 0 0 0
Cooling Degree Days (base 65) 22 12 3 385
Growing Degree Days (base 50) 37 27 18 848
Dew Point
Dew Point 77 °F 60 °F 32 °F
Precipitation
Precipitation 0.74 in 0.06 in 0.00 in 1.74 in
Snowdepth - - - -
Wind
Wind 22 mph 3 mph 0 mph
Gust Wind 41 mph 20 mph 16 mph
Sea Level Pressure
Sea Level Pressure 30.17 in 29.98 in 29.78 in
Monthly Graph
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Date:
Astronomy
May. 19, 2013 Rise Set
Actual Time 6:06 AM CDT 8:05 PM CDT
Civil Twilight 5:36 AM CDT 8:34 PM CDT
Nautical Twilight 5:01 AM CDT 9:09 PM CDT
Astronomical Twilight 4:22 AM CDT 9:48 PM CDT
Moon 10:17 PM CDT (8/6) 10:51 AM CDT (8/6)
Length Of Visible Light 14h 57m
Length of Day
13h 59m
Waning Gibbous, 78% of the Moon is Illuminated
Aug 6
Waning Gibbous
Aug 9
Last Quarter
Aug 17
New
Aug 24
First Quarter
Aug 31
Full
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Monthly Calendar Overview
Print This Calendar Precipitation: Actual month total 1.74 Average month total 2.75
« Previous Month « 2011 August 2012 2013 » Next Month »
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
1 Clear
Actual: 102 | 73
Precip: 0.00
Average: 84 | 67
Precip: 0.07
2 Scattered Clouds
Actual: 100 | 71
Precip: 0.06
Average: 84 | 66
Precip: 0.06
3 Partly Cloudy
Actual: 97 | 73
Precip: 0.06
Average: 84 | 66
Precip: 0.07
4 Thunderstorm
Actual: 98 | 78
Precip: 0.74
Average: 84 | 66
Precip: 0.07
5 Thunderstorm
Actual: 89 | 73
Precip: 0.05
Average: 84 | 65
Precip: 0.06
6 Clear
Actual: 93 | 64
Precip: 0.00
Average: 83 | 65
Precip: 0.06
7 Clear
Actual: 99 | 64
Precip: 0.00
Average: 83 | 65
Precip: 0.06
8 Thunderstorm
Actual: 98 | 69
Precip: 0.34
Average: 83 | 64
Precip: 0.07
9 Thunderstorm
Actual: 91 | 70
Precip: 0.10
Average: 83 | 64
Precip: 0.07
10 Partly Cloudy
Actual: 80 | 68
Precip: 0.00
Average: 83 | 64
Precip: 0.07
11 Scattered Clouds
Actual: 85 | 56
Precip: 0.00
Average: 83 | 64
Precip: 0.08
12 Rain
Actual: 84 | 59
Precip: 0.00
Average: 83 | 64
Precip: 0.08
13 Thunderstorm
Actual: 81 | 66
Precip: 0.14
Average: 83 | 64
Precip: 0.09
14 Fog
Actual: 81 | 61
Precip: 0.00
Average: 83 | 64
Precip: 0.09
15 Clear
Actual: 91 | 60
Precip: 0.00
Average: 83 | 64
Precip: 0.09
16 Rain
Actual: 98 | 69
Precip: 0.00
Average: 83 | 64
Precip: 0.08
17 Scattered Clouds
Actual: 80 | 60
Precip: 0.00
Average: 83 | 64
Precip: 0.08
18 Scattered Clouds
Actual: 82 | 54
Precip: 0.00
Average: 83 | 64
Precip: 0.09
19 Partly Cloudy
Actual: 83 | 60
Precip: 0.00
Average: 83 | 64
Precip: 0.10
20 Scattered Clouds
Actual: 86 | 54
Precip: 0.00
Average: 84 | 64
Precip: 0.10
21 Rain
Actual: 89 | 60
Precip: 0.01
Average: 84 | 64
Precip: 0.10
22 Clear
Actual: 94 | 59
Precip: 0.00
Average: 84 | 64
Precip: 0.12
23 Clear
Actual: 97 | 61
Precip: 0.00
Average: 84 | 64
Precip: 0.13
24 Scattered Clouds
Actual: 95 | 66
Precip: 0.00
Average: 84 | 64
Precip: 0.11
25 Scattered Clouds
Actual: 93 | 63
Precip: 0.00
Average: 84 | 64
Precip: 0.11
26 Thunderstorm
Actual: 91 | 74
Precip: 0.00
Average: 84 | 64
Precip: 0.11
27 Rain
Actual: 91 | 71
Precip: 0.04
Average: 84 | 64
Precip: 0.11
28 Clear
Actual: 94 | 62
Precip: 0.00
Average: 84 | 63
Precip: 0.10
29 Clear
Actual: 93 | 62
Precip: 0.00
Average: 84 | 63
Precip: 0.10
30 Clear
Actual: 97 | 64
Precip: 0.00
Average: 84 | 63
Precip: 0.11
31 Rain
Actual: 87 | 72
Precip: 0.20
Average: 84 | 63
Precip: 0.11
 
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 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  
1 102 84 73 70 62 43 83 58 19 29.95 29.92 29.85 10 10 7 12 2 - 0.00  
2 100 84 71 73 59 52 94 54 30 29.88 29.84 29.78 10 9 3 18 6 - 0.06  
3 97 84 73 76 73 70 94 79 41 29.85 29.83 29.80 10 6 1 12 5 - 0.06  
4 98 87 78 76 73 63 88 73 32 29.99 29.87 29.83 10 9 2 22 5 41 0.74 Rain , Thunderstorm
5 89 81 73 74 65 48 90 68 24 30.15 30.06 29.97 10 10 10 14 4 - 0.05 Rain , Thunderstorm
6 93 78 64 64 58 41 87 60 16 30.17 30.11 30.01 10 10 10 8 1 - 0.00  
7 99 81 64 67 59 41 89 64 14 30.03 29.99 29.94 10 10 10 7 1 - 0.00  
8 98 81 69 68 62 50 88 60 24 30.01 29.96 29.89 10 10 2 21 2 16 0.34 Rain , Thunderstorm
9 91 80 70 68 65 54 90 73 35 29.99 29.89 29.79 10 10 7 12 2 - 0.10 Rain , Thunderstorm
10 80 74 68 66 61 52 86 70 37 30.00 29.93 29.85 10 10 10 17 4 - 0.00  
11 85 70 56 58 52 36 90 65 18 30.06 30.01 29.97 10 10 10 9 1 - 0.00  
12 84 72 59 61 55 48 88 67 30 30.03 29.99 29.90 10 10 10 16 1 - 0.00 Rain
13 81 72 66 66 61 50 88 71 43 29.98 29.91 29.86 10 10 5 14 3 - 0.14 Rain , Thunderstorm
14 81 70 61 64 62 59 94 77 48 30.03 29.98 29.95 10 8 0 12 2 - 0.00 Fog
15 91 76 60 64 58 46 94 67 21 30.02 29.96 29.89 10 10 5 12 3 - 0.00  
16 98 82 69 73 63 58 89 66 30 29.99 29.92 29.82 10 10 5 18 6 22 0.00 Rain
17 80 72 60 68 55 41 84 67 24 30.07 30.01 29.90 10 10 10 12 4 - 0.00  
18 82 68 54 57 52 39 91 69 23 30.04 30.00 29.92 10 10 10 7 2 - 0.00  
19 83 72 60 60 53 32 84 63 18 29.98 29.95 29.93 10 10 10 16 2 - 0.00  
20 86 68 54 57 52 41 88 68 23 30.01 29.98 29.94 10 10 10 12 2 - 0.00  
21 89 74 60 61 55 41 88 67 19 30.06 30.03 29.99 10 10 10 9 2 - 0.01 Rain
22 94 76 59 59 53 36 87 62 13 30.10 30.06 30.02 10 10 10 12 2 - 0.00  
23 97 78 61 59 55 41 82 62 15 30.10 30.06 30.00 10 10 10 9 2 - 0.00  
24 95 80 66 63 57 43 82 59 16 30.06 30.02 29.97 10 10 10 14 4 - 0.00  
25 93 78 63 68 61 52 86 68 26 30.05 30.01 29.97 10 10 10 16 3 24 0.00  
26 91 82 74 73 69 66 94 75 46 30.05 30.01 29.96 10 10 10 15 7 20 0.00 Rain , Thunderstorm
27 91 81 71 75 68 48 94 74 23 30.12 30.04 29.99 10 8 4 14 4 - 0.04 Rain
28 94 78 62 64 59 50 88 67 23 30.14 30.08 30.00 10 10 10 12 2 - 0.00  
29 93 78 62 64 60 50 89 71 26 30.09 30.03 29.97 10 10 10 14 2 - 0.00  
30 97 80 64 64 61 46 89 71 19 30.04 30.00 29.97 10 10 10 17 3 - 0.00  
31 87 77 72 77 71 65 94 83 68 30.07 30.00 29.91 10 9 3 15 5 18 0.20 Rain
Comma Delimited File