Weather History for Alton, IL

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Friday, January 18, 2013

  Actual Average Record
Temperature  
Mean Temperature 37 °F -  
Max Temperature 48 °F 34 °F 48 °F (2013)
Min Temperature 26 °F 21 °F 0 °F (1997)
Degree Days  
Heating Degree Days 28    
Moisture  
Dew Point 24 °F    
Average Humidity 68    
Maximum Humidity 86    
Minimum Humidity 37    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.35 in    
Wind  
Wind Speed 6 mph (South)    
Max Wind Speed 21 mph    
Max Gust Speed 28 mph    
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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Date:

Astronomy

Jan. 18, 2013 Rise Set
Actual Time 7:15 AM CST 5:05 PM CST
Civil Twilight 6:46 AM CST 5:34 PM CST
Nautical Twilight 6:14 AM CST 6:07 PM CST
Astronomical Twilight 5:42 AM CST 6:39 PM CST
Moon 10:58 AM CST (1/18) No Moon Set
Length of Visible Light 10h 48m
Length of Day
9h 50m
Waxing Crescent, 47% of the Moon is Illuminated
Jan 18
Waxing Crescent
Jan 18
First Quarter
Jan 26
Full
Feb 3
Last Quarter
Feb 10
New

Hourly Weather History & Observations

Time (CST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 28.9 °F 25.2 °F 23.5 °F 80% 30.49 in 10.0 mi South 3.5 mph - N/A   Clear
12:35 AM 27.9 °F - 23.0 °F 82% 30.49 in 10.0 mi Calm Calm - N/A   Clear
12:55 AM 28.4 °F - 23.2 °F 81% 30.50 in 10.0 mi Calm Calm - N/A   Clear
1:15 AM 28.4 °F - 23.2 °F 81% 30.50 in 10.0 mi Calm Calm - N/A   Clear
1:35 AM 27.3 °F - 22.8 °F 83% 30.50 in 10.0 mi Calm Calm - N/A   Clear
1:55 AM 28.2 °F - 23.9 °F 84% 30.50 in 10.0 mi Calm Calm - N/A   Clear
2:15 AM 27.7 °F - 23.2 °F 83% 30.50 in 10.0 mi Calm Calm - N/A   Clear
2:55 AM 28.4 °F 24.6 °F 24.3 °F 84% 30.49 in 10.0 mi South 3.5 mph - N/A   Clear
3:15 AM 27.0 °F - 23.2 °F 86% 30.49 in 10.0 mi Calm Calm - N/A   Clear
3:35 AM 26.4 °F - 21.9 °F 83% 30.48 in 10.0 mi Calm Calm - N/A   Clear
3:55 AM 26.8 °F 22.8 °F 22.6 °F 84% 30.48 in 10.0 mi South 3.5 mph - N/A   Clear
4:15 AM 27.1 °F 21.8 °F 22.1 °F 81% 30.48 in 10.0 mi South 4.6 mph - N/A   Clear
4:35 AM 27.7 °F 22.4 °F 22.8 °F 82% 30.48 in 10.0 mi SSW 4.6 mph - N/A   Clear
4:55 AM 27.5 °F 22.2 °F 22.5 °F 81% 30.48 in 10.0 mi SSE 4.6 mph - N/A   Clear
5:15 AM 27.9 °F 19.8 °F 22.8 °F 81% 30.47 in 10.0 mi South 8.1 mph - N/A   Clear
5:35 AM 29.1 °F 21.3 °F 23.4 °F 79% 30.48 in 10.0 mi South 8.1 mph - N/A   Clear
5:55 AM 29.1 °F 22.1 °F 23.0 °F 78% 30.47 in 10.0 mi South 6.9 mph - N/A   Clear
6:45 AM 28.4 °F 18.5 °F 23.0 °F 80% 30.46 in 10.0 mi South 11.5 mph - N/A   Clear
7:45 AM 30.2 °F 20.8 °F 23.0 °F 75% 30.47 in 10.0 mi SSW 11.5 mph - N/A   Clear
8:50 AM 33.8 °F 23.5 °F 24.8 °F 70% 30.46 in 10.0 mi South 16.1 mph - N/A   Clear
9:45 AM 37.4 °F 28.2 °F 24.8 °F 60% 30.44 in 10.0 mi South 16.1 mph - N/A   Clear
10:50 AM 42.8 °F 34.5 °F 23.0 °F 46% 30.41 in 10.0 mi SSW 18.4 mph - N/A   Clear
11:45 AM 44.6 °F 36.4 °F 23.0 °F 43% 30.36 in 10.0 mi SSW 20.7 mph - N/A   Clear
4:50 PM 48.2 °F - 23.0 °F 37% 30.19 in 10.0 mi SSE 13.8 mph - N/A   Clear
5:50 PM 48.2 °F - 23.0 °F 37% 30.19 in 10.0 mi South 12.7 mph 19.6 mph N/A   Clear
6:50 PM 44.6 °F 38.8 °F 24.8 °F 46% 30.18 in 10.0 mi South 11.5 mph 19.6 mph N/A   Clear
7:50 PM 42.8 °F 35.4 °F 24.8 °F 49% 30.16 in 10.0 mi South 15.0 mph 24.2 mph N/A   Clear
8:50 PM 41.0 °F 32.5 °F 26.6 °F 57% 30.15 in 10.0 mi South 17.3 mph 27.6 mph N/A   Clear
9:15 PM 41.0 °F 32.2 °F 26.6 °F 57% 30.14 in 10.0 mi South 18.4 mph - N/A   Clear
9:35 PM 40.6 °F 31.4 °F 27.1 °F 59% 30.13 in 10.0 mi South 19.6 mph - N/A   Clear
9:55 PM 40.1 °F 32.0 °F 27.3 °F 60% 30.14 in 10.0 mi South 15.0 mph - N/A   Clear
9:56 PM 41.0 °F 33.5 °F 26.6 °F 57% 30.14 in 10.0 mi South 13.8 mph 20.7 mph N/A   Clear
10:15 PM 39.9 °F 32.1 °F 27.3 °F 61% 30.14 in 10.0 mi South 13.8 mph - N/A   Clear
10:35 PM 39.7 °F 31.5 °F 27.7 °F 62% 30.13 in 10.0 mi South 15.0 mph - N/A   Clear
10:55 PM 41.2 °F 34.1 °F 27.9 °F 59% 30.15 in 10.0 mi SSW 12.7 mph 21.9 mph N/A   Clear
11:15 PM 42.1 °F 34.2 °F 28.4 °F 58% 30.14 in 10.0 mi SSW 16.1 mph 21.9 mph N/A   Clear
11:35 PM 41.4 °F 34.3 °F 28.4 °F 60% 30.14 in 10.0 mi South 12.7 mph - N/A   Clear
11:55 PM 41.0 °F 34.3 °F 28.4 °F 61% 30.14 in 10.0 mi South 11.5 mph - N/A   Clear