Weather History for Alton, IL

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Sunday, March 16, 2014

  Actual Average Record
Temperature  
Mean Temperature 36 °F -  
Max Temperature 43 °F 50 °F 72 °F (2012)
Min Temperature 27 °F 34 °F 21 °F (1997)
Degree Days  
Heating Degree Days 29    
Moisture  
Dew Point 20 °F    
Average Humidity 57    
Maximum Humidity 77    
Minimum Humidity 38    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.04 in    
Wind  
Wind Speed 14 mph (NNE)    
Max Wind Speed 29 mph    
Max Gust Speed 40 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

Mar. 16, 2014 Rise Set
Actual Time 7:09 AM CDT 7:08 PM CDT
Civil Twilight 6:43 AM CDT 7:34 PM CDT
Nautical Twilight 6:12 AM CDT 8:05 PM CDT
Astronomical Twilight 5:41 AM CDT 8:37 PM CDT
Moon 7:25 PM CDT (3/16) 6:53 AM CDT (3/16)
Length of Visible Light 12h 51m
Length of Day
11h 58m
Full, 100% of the Moon is Illuminated
Mar 16
Full
Mar 16
Full
Mar 23
Last Quarter
Mar 30
New
Apr 7
First Quarter

Hourly Weather History & Observations

Time (CDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 45.5 °F 39.9 °F 31.1 °F 57% 29.98 in 10.0 mi NE 11.5 mph 18.4 mph N/A   Overcast
12:35 AM 44.6 °F 38.8 °F 31.1 °F 59% 29.98 in 10.0 mi ENE 11.5 mph 17.3 mph N/A   Overcast
12:55 AM 43.9 °F 37.5 °F 31.1 °F 61% 29.98 in 10.0 mi ENE 12.7 mph 18.4 mph N/A   Mostly Cloudy
1:15 AM 43.5 °F 37.1 °F 31.1 °F 62% 29.99 in 10.0 mi NE 12.7 mph 17.3 mph N/A   Overcast
1:35 AM 42.8 °F 37.5 °F 30.9 °F 63% 30.00 in 10.0 mi NNE 9.2 mph 18.4 mph N/A   Overcast
1:55 AM 41.9 °F 35.9 °F 30.6 °F 64% 30.01 in 10.0 mi NNE 10.4 mph 18.4 mph N/A   Mostly Cloudy
2:15 AM 40.3 °F 34.4 °F 31.3 °F 70% 30.01 in 10.0 mi NNE 9.2 mph 21.9 mph N/A   Mostly Cloudy
2:35 AM 38.3 °F 30.9 °F 31.6 °F 77% 30.01 in 10.0 mi NNE 11.5 mph 21.9 mph N/A   Scattered Clouds
2:55 AM 37.2 °F 29.6 °F 30.7 °F 77% 30.01 in 10.0 mi NNE 11.5 mph 21.9 mph N/A   Clear
3:15 AM 36.5 °F 27.8 °F 29.7 °F 76% 30.01 in 10.0 mi NE 13.8 mph 23.0 mph N/A   Mostly Cloudy
3:35 AM 35.8 °F 26.5 °F 27.9 °F 73% 30.00 in 10.0 mi NE 15.0 mph 24.2 mph N/A   Overcast
3:55 AM 35.4 °F 25.6 °F 25.2 °F 66% 29.99 in 10.0 mi NE 16.1 mph 26.5 mph N/A   Overcast
4:15 AM 35.1 °F 25.2 °F 23.2 °F 62% 30.00 in 10.0 mi NE 16.1 mph 21.9 mph N/A   Overcast
4:35 AM 34.7 °F 24.7 °F 23.2 °F 63% 30.00 in 10.0 mi NE 16.1 mph 24.2 mph N/A   Mostly Cloudy
4:55 AM 34.7 °F 24.7 °F 23.0 °F 62% 30.01 in 10.0 mi NE 16.1 mph 26.5 mph N/A   Clear
5:15 AM 34.3 °F 24.6 °F 23.2 °F 64% 30.01 in 10.0 mi NE 15.0 mph 26.5 mph N/A   Mostly Cloudy
5:35 AM 34.2 °F 24.0 °F 23.0 °F 64% 30.01 in 10.0 mi NE 16.1 mph 23.0 mph N/A   Mostly Cloudy
5:55 AM 33.8 °F 23.5 °F 22.5 °F 63% 30.01 in 10.0 mi NE 16.1 mph 27.6 mph N/A   Scattered Clouds
6:15 AM 33.4 °F 22.0 °F 21.9 °F 63% 30.00 in 10.0 mi NE 19.6 mph 25.3 mph N/A   Scattered Clouds
6:35 AM 33.4 °F 22.0 °F 21.2 °F 61% 30.01 in 10.0 mi NE 19.6 mph 26.5 mph N/A   Mostly Cloudy
6:45 AM 33.8 °F 23.2 °F 21.2 °F 60% 30.01 in 10.0 mi NNE 17.3 mph 28.8 mph N/A   Scattered Clouds
7:50 AM 33.8 °F 21.0 °F 15.8 °F 48% 30.03 in 10.0 mi NNE 25.3 mph 36.8 mph N/A   Overcast
8:50 AM 32.0 °F 17.9 °F 14.0 °F 48% 30.06 in 10.0 mi NNE 28.8 mph 40.3 mph N/A   Overcast
9:45 AM 32.0 °F 19.2 °F 14.0 °F 48% 30.10 in 10.0 mi NNE 23.0 mph 32.2 mph N/A   Overcast
10:45 AM 32.0 °F 19.2 °F 14.0 °F 48% 30.11 in 10.0 mi NNE 23.0 mph 32.2 mph N/A   Overcast
11:50 AM 32.0 °F 20.8 °F 12.2 °F 44% 30.11 in 10.0 mi NNE 17.3 mph 28.8 mph N/A   Overcast
12:45 PM 33.8 °F 23.2 °F 14.0 °F 44% 30.10 in 10.0 mi NNE 17.3 mph 28.8 mph N/A   Overcast
1:50 PM 32.0 °F 20.8 °F 14.0 °F 48% 30.09 in 10.0 mi NNE 17.3 mph 27.6 mph N/A   Overcast
2:50 PM 33.8 °F 23.2 °F 12.2 °F 41% 30.08 in 10.0 mi North 17.3 mph 29.9 mph N/A   Overcast
3:50 PM 33.8 °F 23.2 °F 10.4 °F 38% 30.08 in 10.0 mi North 17.3 mph 29.9 mph N/A   Mostly Cloudy
4:50 PM 32.0 °F 22.5 °F 10.4 °F 41% 30.07 in 10.0 mi NNE 12.7 mph 27.6 mph N/A   Overcast
5:50 PM 30.2 °F 20.2 °F 12.2 °F 47% 30.06 in 10.0 mi NNE 12.7 mph 27.6 mph N/A   Mostly Cloudy
6:50 PM 30.2 °F 19.8 °F 14.0 °F 51% 30.07 in 10.0 mi NNE 13.8 mph 25.3 mph N/A   Mostly Cloudy
7:50 PM 30.2 °F 20.8 °F 12.2 °F 47% 30.08 in 10.0 mi North 11.5 mph 23.0 mph N/A   Mostly Cloudy
8:50 PM 28.4 °F 18.5 °F 12.2 °F 51% 30.11 in 10.0 mi North 11.5 mph 23.0 mph N/A   Clear
9:50 PM 28.4 °F 18.5 °F 12.2 °F 51% 30.09 in 10.0 mi NNE 11.5 mph 23.0 mph N/A   Clear
10:15 PM 28.4 °F 18.0 °F 13.3 °F 53% 30.10 in 10.0 mi NNE 12.7 mph 18.4 mph N/A   Clear
10:35 PM 28.2 °F 20.2 °F 14.7 °F 57% 30.09 in 10.0 mi North 8.1 mph - N/A   Clear
10:55 PM 28.2 °F 22.0 °F 14.7 °F 57% 30.09 in 10.0 mi North 5.8 mph - N/A   Clear
11:15 PM 28.0 °F 20.0 °F 13.8 °F 55% 30.09 in 10.0 mi NNE 8.1 mph - N/A   Clear
11:35 PM 27.5 °F 20.2 °F 14.0 °F 57% 30.08 in 10.0 mi NNE 6.9 mph - N/A   Clear
11:55 PM 27.5 °F 19.3 °F 14.0 °F 57% 30.08 in 10.0 mi North 8.1 mph - N/A   Clear