Weather History for Alton, IL

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Monday, April 15, 2013

  Actual Average Record
Temperature  
Mean Temperature 60 °F -  
Max Temperature 68 °F 64 °F 87 °F (2002)
Min Temperature 52 °F 46 °F 30 °F (2008)
Degree Days  
Heating Degree Days 5    
Growing Degree Days 10 (Base 50)    
Moisture  
Dew Point 51 °F    
Average Humidity 72    
Maximum Humidity 94    
Minimum Humidity 50    
Precipitation  
Precipitation 0.02 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.82 in    
Wind  
Wind Speed 12 mph (SSE)    
Max Wind Speed 21 mph    
Max Gust Speed 26 mph    
Visibility 10 miles    
Events Rain , 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

Apr. 15, 2013 Rise Set
Actual Time 6:23 AM CDT 7:37 PM CDT
Civil Twilight 5:55 AM CDT 8:05 PM CDT
Nautical Twilight 5:22 AM CDT 8:38 PM CDT
Astronomical Twilight 4:48 AM CDT 9:12 PM CDT
Moon 9:51 AM CDT (4/15) No Moon Set
Length of Visible Light 14h 09m
Length of Day
13h 14m
Waxing Crescent, 25% of the Moon is Illuminated
Apr 15
Waxing Crescent
Apr 18
First Quarter
Apr 25
Full
May 2
Last Quarter
May 9
New

Hourly Weather History & Observations

Time (CDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 63.5 °F 44.6 °F 50% 29.75 in 10.0 mi SSE 16.1 mph 26.5 mph N/A   Scattered Clouds
12:35 AM 62.6 °F 45.0 °F 52% 29.76 in 10.0 mi SSE 16.1 mph 24.2 mph N/A   Clear
12:55 AM 62.8 °F 45.3 °F 53% 29.76 in 10.0 mi SSE 13.8 mph 23.0 mph N/A   Scattered Clouds
1:15 AM 63.0 °F 45.3 °F 53% 29.78 in 10.0 mi South 11.5 mph - N/A   Overcast
1:35 AM 62.1 °F 45.7 °F 55% 29.77 in 10.0 mi SSE 10.4 mph - N/A   Mostly Cloudy
1:55 AM 62.2 °F 45.7 °F 55% 29.77 in 10.0 mi SSE 8.1 mph - N/A   Overcast
2:15 AM 62.2 °F 45.9 °F 55% 29.76 in 10.0 mi SSE 9.2 mph - N/A   Overcast
2:35 AM 61.9 °F 46.2 °F 56% 29.76 in 10.0 mi SSE 11.5 mph - N/A   Overcast
2:55 AM 61.7 °F 46.6 °F 58% 29.77 in 10.0 mi South 11.5 mph - N/A   Overcast
3:15 AM 61.0 °F 47.3 °F 61% 29.77 in 10.0 mi SSE 12.7 mph - N/A   Overcast
3:35 AM 60.8 °F 47.7 °F 62% 29.76 in 10.0 mi SSE 9.2 mph - N/A   Overcast
3:55 AM 60.3 °F 48.9 °F 66% 29.77 in 10.0 mi SSE 10.4 mph - N/A   Mostly Cloudy
4:15 AM 60.3 °F 49.3 °F 67% 29.78 in 10.0 mi SSE 8.1 mph - N/A   Overcast
4:35 AM 59.9 °F 50.0 °F 70% 29.78 in 10.0 mi SSE 10.4 mph - N/A   Overcast
4:55 AM 59.7 °F 50.2 °F 71% 29.79 in 10.0 mi SSE 11.5 mph - N/A   Mostly Cloudy
5:15 AM 59.9 °F 50.9 °F 72% 29.79 in 10.0 mi SSE 9.2 mph - N/A   Overcast
5:35 AM 59.9 °F 50.9 °F 72% 29.80 in 10.0 mi SSE 9.2 mph - N/A   Overcast
5:55 AM 59.9 °F 51.3 °F 73% 29.81 in 10.0 mi SSE 10.4 mph - N/A   Overcast
6:15 AM 59.9 °F 51.6 °F 74% 29.82 in 10.0 mi South 10.4 mph - N/A   Overcast
6:35 AM 59.9 °F 51.8 °F 75% 29.84 in 10.0 mi South 10.4 mph - N/A   Overcast
6:50 AM 59.0 °F 51.8 °F 77% 29.84 in 10.0 mi South 15.0 mph - N/A   Overcast
6:55 AM 59.5 °F 51.8 °F 76% 29.84 in 10.0 mi South 10.4 mph - N/A   Overcast
7:50 AM 57.2 °F 53.6 °F 88% 29.88 in 6.0 mi SSW 6.9 mph - N/A Rain Light Rain
8:50 AM 57.2 °F 53.6 °F 88% 29.89 in 6.0 mi SW 6.9 mph - N/A Rain Light Rain
9:50 AM 57.2 °F 55.4 °F 94% 29.88 in 6.0 mi South 5.8 mph - N/A Rain Light Rain
10:55 AM 60.8 °F 57.2 °F 88% 29.87 in 8.0 mi South 13.8 mph - N/A   Overcast
11:50 AM 64.4 °F 57.2 °F 77% 29.85 in 10.0 mi South 15.0 mph - N/A   Mostly Cloudy
12:50 PM 62.6 °F 59.0 °F 88% 29.86 in 6.0 mi South 9.2 mph - N/A Rain , Thunderstorm Light Thunderstorms and Rain
1:50 PM 68.0 °F 57.2 °F 68% 29.86 in 10.0 mi South 11.5 mph - N/A   Overcast
2:50 PM 66.2 °F 57.2 °F 73% 29.84 in 10.0 mi South 20.7 mph - N/A   Overcast
3:50 PM 68.0 °F 59.0 °F 73% 29.82 in 10.0 mi South 18.4 mph - N/A   Overcast
4:50 PM 68.0 °F 59.0 °F 73% 29.81 in 10.0 mi South 11.5 mph - N/A   Overcast
10:15 PM 52.9 °F 48.6 °F 85% 29.91 in 10.0 mi North 9.2 mph - N/A   Overcast
10:35 PM 52.7 °F 48.4 °F 85% 29.89 in 10.0 mi NNE 8.1 mph 16.1 mph 0.01 in   Overcast
10:55 PM 52.9 °F 48.7 °F 86% 29.89 in 10.0 mi NE 6.9 mph - 0.01 in   Overcast
11:15 PM 52.9 °F 48.7 °F 86% 29.89 in 10.0 mi NNE 5.8 mph - N/A   Overcast
11:35 PM 53.1 °F 49.1 °F 86% 29.90 in 10.0 mi North 8.1 mph - 0.01 in   Overcast
11:55 PM 53.1 °F 49.1 °F 86% 29.91 in 10.0 mi North 8.1 mph - 0.01 in   Overcast