Weather History for Alton, IL

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Saturday, February 16, 2013

  Actual Average Record
Temperature  
Mean Temperature 32 °F -  
Max Temperature 39 °F 43 °F 68 °F (2006)
Min Temperature 24 °F 29 °F 5 °F (2007)
Degree Days  
Heating Degree Days 34    
Moisture  
Dew Point 13 °F    
Average Humidity 54    
Maximum Humidity 81    
Minimum Humidity 26    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.21 in    
Wind  
Wind Speed 7 mph (WNW)    
Max Wind Speed 16 mph    
Max Gust Speed -    
Visibility 10 miles    
Events Thunderstorm    
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

Feb. 16, 2013 Rise Set
Actual Time 6:49 AM CST 5:39 PM CST
Civil Twilight 6:22 AM CST 6:06 PM CST
Nautical Twilight 5:51 AM CST 6:37 PM CST
Astronomical Twilight 5:20 AM CST 7:08 PM CST
Moon 10:06 AM CST (2/16) No Moon Set
Length of Visible Light 11h 43m
Length of Day
10h 49m
Waxing Crescent, 39% of the Moon is Illuminated
Feb 16
Waxing Crescent
Feb 17
First Quarter
Feb 25
Full
Mar 4
Last Quarter
Mar 11
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 30.6 °F 21.8 °F 14.0 °F 50% 30.23 in 10.0 mi NNW 10.4 mph - N/A   Clear
12:55 AM 29.5 °F 23.4 °F 13.8 °F 52% 30.23 in 10.0 mi NNW 5.8 mph - N/A   Clear
1:15 AM 29.1 °F 24.1 °F 14.7 °F 55% 30.23 in 10.0 mi NW 4.6 mph - N/A   Clear
1:35 AM 28.8 °F 25.0 °F 15.3 °F 57% 30.23 in 10.0 mi NNW 3.5 mph - N/A Thunderstorm Thunderstorm
1:55 AM 28.4 °F - 15.6 °F 59% 30.23 in 10.0 mi Calm Calm - N/A   Clear
2:15 AM 27.5 °F 21.1 °F 16.0 °F 62% 30.23 in 10.0 mi NW 5.8 mph - N/A Thunderstorm Thunderstorm
2:35 AM 27.9 °F 20.6 °F 13.1 °F 54% 30.23 in 10.0 mi NW 6.9 mph - N/A Thunderstorm Thunderstorm
2:55 AM 27.5 °F 20.2 °F 13.1 °F 55% 30.23 in 10.0 mi NW 6.9 mph - N/A   Clear
3:15 AM 27.5 °F 19.3 °F 13.5 °F 56% 30.23 in 10.0 mi NW 8.1 mph - N/A   Clear
3:35 AM 27.0 °F 20.5 °F 13.6 °F 57% 30.23 in 10.0 mi NW 5.8 mph - N/A   Clear
3:55 AM 26.6 °F 21.2 °F 13.6 °F 58% 30.23 in 10.0 mi NW 4.6 mph - N/A Thunderstorm Thunderstorm
4:15 AM 26.4 °F 20.9 °F 14.0 °F 59% 30.23 in 10.0 mi WNW 4.6 mph - N/A Thunderstorm Thunderstorm
4:35 AM 26.2 °F 18.6 °F 14.0 °F 60% 30.23 in 10.0 mi NW 6.9 mph - N/A Thunderstorm Thunderstorm
5:15 AM 25.7 °F 18.0 °F 14.0 °F 61% 30.24 in 10.0 mi NW 6.9 mph - N/A   Clear
5:35 AM 25.3 °F 15.3 °F 13.6 °F 61% 30.24 in 10.0 mi NW 10.4 mph - N/A   Clear
5:55 AM 25.2 °F 19.5 °F 13.6 °F 62% 30.24 in 10.0 mi NW 4.6 mph - N/A Thunderstorm Thunderstorm
6:45 AM 24.8 °F 14.0 °F 14.0 °F 64% 30.25 in 10.0 mi NNW 11.5 mph - N/A   Partly Cloudy
7:45 AM 39.2 °F 31.2 °F 30.2 °F 70% 30.26 in 10.0 mi NNW 13.8 mph - N/A   Partly Cloudy
8:55 AM 26.6 °F 16.2 °F 12.2 °F 55% 30.27 in 10.0 mi NNW 11.5 mph - N/A   Partly Cloudy
9:45 AM 26.6 °F 16.2 °F 12.2 °F 55% 30.27 in 10.0 mi NNW 11.5 mph - N/A   Clear
10:45 AM 28.4 °F 18.5 °F 10.4 °F 47% 30.26 in 10.0 mi WNW 11.5 mph - N/A   Clear
11:45 AM 32.0 °F 21.2 °F 8.6 °F 38% 30.26 in 10.0 mi West 16.1 mph - N/A   Clear
12:50 PM 33.8 °F 26.4 °F 6.8 °F 32% 30.22 in 10.0 mi West 9.2 mph - N/A   Clear
1:50 PM 35.6 °F 27.5 °F 5.0 °F 28% 30.19 in 10.0 mi West 11.5 mph - N/A   Clear
2:50 PM 37.4 °F 29.8 °F 6.8 °F 28% 30.18 in 10.0 mi West 11.5 mph - N/A   Clear
3:50 PM 37.4 °F 29.3 °F 5.0 °F 26% 30.17 in 10.0 mi West 12.7 mph - N/A   Clear
4:50 PM 37.4 °F 28.5 °F 5.0 °F 26% 30.17 in 10.0 mi WNW 15.0 mph - N/A   Clear
5:50 PM 33.8 °F 25.3 °F 10.4 °F 38% 30.18 in 10.0 mi WNW 11.5 mph - N/A   Clear
6:50 PM 32.0 °F 24.2 °F 12.2 °F 44% 30.18 in 10.0 mi WNW 9.2 mph - N/A   Clear
7:50 PM 30.2 °F - 10.4 °F 44% 30.19 in 10.0 mi Calm Calm - N/A   Clear
8:50 PM 28.4 °F - 15.8 °F 59% 30.19 in 10.0 mi Calm Calm - N/A   Clear
9:15 PM 28.2 °F - 11.3 °F 49% 30.19 in 10.0 mi Calm Calm - N/A   Clear
9:35 PM 30.0 °F - 10.6 °F 44% 30.19 in 10.0 mi Calm Calm - N/A   Clear
9:50 PM 26.6 °F - 15.8 °F 64% 30.19 in 10.0 mi Calm Calm - N/A   Clear
9:55 PM 27.0 °F - 16.3 °F 64% 30.19 in 10.0 mi Calm Calm - N/A   Clear
10:15 PM 27.1 °F - 16.3 °F 64% 30.19 in 10.0 mi Calm Calm - N/A Thunderstorm Thunderstorm
10:35 PM 26.2 °F - 17.4 °F 69% 30.19 in 10.0 mi Calm Calm - N/A Thunderstorm Thunderstorm
10:55 PM 25.5 °F - 17.1 °F 70% 30.19 in 10.0 mi Calm Calm - N/A   Clear
11:15 PM 26.2 °F - 19.0 °F 74% 30.18 in 10.0 mi Calm Calm - N/A Thunderstorm Thunderstorm
11:35 PM 24.8 °F 20.5 °F 19.6 °F 81% 30.17 in 10.0 mi SSW 3.5 mph - N/A   Clear
11:55 PM 24.1 °F 19.7 °F 18.1 °F 78% 30.17 in 10.0 mi SW 3.5 mph - N/A   Clear