Weather History for Alton, IL

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Thursday, July 25, 2013

  Actual Average Record
Temperature  
Mean Temperature 68 °F -  
Max Temperature 80 °F 85 °F 104 °F (2012)
Min Temperature 55 °F 68 °F 55 °F (2013)
Cooling Degree Days 2    
Growing Degree Days 18 (Base 50)    
Moisture  
Dew Point 57 °F    
Average Humidity 83    
Maximum Humidity 97    
Minimum Humidity 36    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.08 in    
Wind  
Wind Speed 1 mph (NNE)    
Max Wind Speed 9 mph    
Max Gust Speed -    
Visibility 10 miles    
Events      
Averages and records for this station are not official NWS values.
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jul. 25, 2013 Rise Set
Actual Time 5:55 AM CDT 8:17 PM CDT
Civil Twilight 5:24 AM CDT 8:47 PM CDT
Nautical Twilight 4:47 AM CDT 9:24 PM CDT
Astronomical Twilight 4:06 AM CDT 10:06 PM CDT
Moon 10:01 PM CDT (7/25) 9:22 AM CDT (7/25)
Length of Visible Light 15h 22m
Length of Day
14h 22m
Waning Gibbous, 88% of the Moon is Illuminated
Jul 25
Waning Gibbous
Jul 29
Last Quarter
Aug 6
New
Aug 14
First Quarter
Aug 20
Full

Hourly Weather History & Observations

Time (CDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 59.9 °F 57.4 °F 91% 30.05 in 10.0 mi Calm Calm - N/A   Clear
12:35 AM 59.9 °F 57.9 °F 93% 30.05 in 10.0 mi Calm Calm - N/A   Clear
12:55 AM 59.5 °F 57.6 °F 93% 30.05 in 10.0 mi Calm Calm - N/A   Clear
1:15 AM 59.0 °F 57.4 °F 94% 30.06 in 10.0 mi Calm Calm - N/A   Clear
1:35 AM 59.5 °F 57.7 °F 94% 30.06 in 10.0 mi Calm Calm - N/A   Clear
1:55 AM 58.5 °F 56.8 °F 94% 30.06 in 10.0 mi Calm Calm - N/A   Clear
2:15 AM 58.3 °F 56.7 °F 94% 30.05 in 10.0 mi Calm Calm - N/A   Clear
2:35 AM 58.1 °F 56.7 °F 95% 30.05 in 10.0 mi Calm Calm - N/A   Clear
2:55 AM 59.0 °F 57.6 °F 95% 30.05 in 10.0 mi Calm Calm - N/A   Clear
3:15 AM 57.7 °F 56.3 °F 95% 30.06 in 10.0 mi Calm Calm - N/A   Clear
3:35 AM 57.4 °F 56.3 °F 96% 30.06 in 10.0 mi Calm Calm - N/A   Clear
3:55 AM 58.6 °F 57.4 °F 96% 30.06 in 10.0 mi NNE 3.5 mph - N/A   Clear
4:15 AM 58.1 °F 56.5 °F 94% 30.06 in 10.0 mi North 3.5 mph - N/A   Clear
4:35 AM 58.3 °F 56.5 °F 94% 30.07 in 10.0 mi Calm Calm - N/A   Clear
4:55 AM 56.3 °F 54.9 °F 95% 30.07 in 10.0 mi Calm Calm - N/A   Clear
5:15 AM 56.5 °F 55.4 °F 96% 30.08 in 10.0 mi Calm Calm - N/A   Clear
5:35 AM 56.3 °F 55.2 °F 96% 30.09 in 10.0 mi Calm Calm - N/A   Clear
5:55 AM 55.8 °F 54.7 °F 96% 30.08 in 10.0 mi Calm Calm - N/A   Clear
6:35 AM 57.6 °F 56.7 °F 97% 30.09 in 10.0 mi Calm Calm - N/A   Clear
6:50 AM 59.0 °F 57.2 °F 94% 30.09 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:55 AM 59.5 °F 58.3 °F 96% 30.09 in 10.0 mi Calm Calm - N/A   Clear
7:48 AM 64.4 °F 59.0 °F 83% 30.10 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
8:48 AM 68.0 °F 59.0 °F 73% 30.12 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
9:50 AM 71.6 °F 57.2 °F 60% 30.11 in 10.0 mi Variable 4.6 mph - N/A   Mostly Cloudy
10:49 AM 75.2 °F 55.4 °F 50% 30.13 in 10.0 mi Variable 4.6 mph - N/A   Mostly Cloudy
11:48 AM 77.0 °F 53.6 °F 44% 30.14 in 10.0 mi NE 8.1 mph - N/A   Mostly Cloudy
3:45 PM 80.6 °F 51.8 °F 37% 30.10 in 10.0 mi NNW 9.2 mph - N/A   Mostly Cloudy
4:45 PM 78.8 °F 50.0 °F 36% 30.09 in 10.0 mi Variable 3.5 mph - N/A   Mostly Cloudy
5:45 PM 77.0 °F 55.4 °F 47% 30.08 in 10.0 mi Variable 3.5 mph - N/A   Mostly Cloudy
6:45 PM 77.0 °F 51.8 °F 41% 30.08 in 10.0 mi Variable 3.5 mph - N/A   Scattered Clouds
7:45 PM 71.6 °F 60.8 °F 69% 30.08 in 10.0 mi Calm Calm - N/A   Scattered Clouds
8:45 PM 68.0 °F 60.8 °F 78% 30.06 in 10.0 mi Calm Calm - N/A   Scattered Clouds
9:45 PM 64.4 °F 60.8 °F 88% 30.09 in 10.0 mi Calm Calm - N/A   Clear
10:15 PM 65.3 °F 61.2 °F 86% 30.09 in 10.0 mi Calm Calm - N/A   Clear
10:35 PM 64.6 °F 61.5 °F 90% 30.09 in 10.0 mi Calm Calm - N/A   Clear
10:55 PM 65.3 °F 61.7 °F 88% 30.09 in 10.0 mi Calm Calm - N/A   Clear
11:15 PM 64.6 °F 61.5 °F 90% 30.09 in 10.0 mi Calm Calm - N/A   Clear
11:35 PM 64.6 °F 61.3 °F 89% 30.09 in 10.0 mi Calm Calm - N/A   Clear
11:55 PM 64.4 °F 60.8 °F 88% 30.08 in 10.0 mi East 4.6 mph - N/A   Clear