Weather History for Decatur, IL

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Tuesday, December 18, 2012

  Actual Average Record
Temperature  
Mean Temperature 42 °F 30 °F  
Max Temperature 50 °F 38 °F 57 °F (2002)
Min Temperature 33 °F 22 °F 3 °F (2000)
Degree Days  
Heating Degree Days 23 35  
Month to date heating degree days 381 586  
Since 1 July heating degree days 1530 1667  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 1427 1048  
Moisture  
Dew Point 35 °F    
Average Humidity 83    
Maximum Humidity 100    
Minimum Humidity 66    
Precipitation  
Precipitation 0.00 in 0.07 in 1.56 in (2002)
Month to date precipitation 1.26 1.40  
Year to date precipitation 25.11 37.31  
Sea Level Pressure  
Sea Level Pressure 29.77 in    
Wind  
Wind Speed 13 mph (SW)    
Max Wind Speed 28 mph    
Max Gust Speed 36 mph    
Visibility 8 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Date:

Astronomy

Dec. 18, 2012 Rise Set
Actual Time 7:11 AM CST 4:32 PM CST
Civil Twilight 6:41 AM CST 5:03 PM CST
Nautical Twilight 6:07 AM CST 5:37 PM CST
Astronomical Twilight 5:34 AM CST 6:10 PM CST
Moon 10:52 AM CST (12/18) 10:58 PM CST (12/18)
Length of Visible Light 10h 21m
Length of Day
9h 20m
Waxing Crescent, 35% of the Moon is Illuminated
Dec 18
Waxing Crescent
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New

Hourly Weather History & Observations

Time (CST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:26 AM 35.6 °F 28.0 °F 33.8 °F 93% 29.78 in 7.0 mi WNW 10.4 mph - N/A   Overcast
12:54 AM 36.0 °F 31.1 °F 34.0 °F 93% 29.80 in 7.0 mi West 5.8 mph - N/A   Overcast
1:09 AM 35.6 °F 29.2 °F 33.8 °F 93% 29.79 in 7.0 mi West 8.1 mph - N/A   Overcast
1:34 AM 35.6 °F 32.8 °F 33.8 °F 93% 29.79 in 7.0 mi West 3.5 mph - N/A   Overcast
1:54 AM 36.0 °F 30.3 °F 34.0 °F 93% 29.81 in 7.0 mi West 6.9 mph - N/A   Overcast
2:54 AM 36.0 °F 33.3 °F 34.0 °F 93% 29.81 in 6.0 mi WSW 3.5 mph - N/A   Overcast
3:54 AM 36.0 °F 32.1 °F 34.0 °F 93% 29.81 in 6.0 mi SSW 4.6 mph - N/A   Overcast
4:54 AM 34.0 °F 29.8 °F 33.1 °F 96% 29.81 in 6.0 mi South 4.6 mph - N/A   Overcast
5:10 AM 35.6 °F 30.7 °F 33.8 °F 93% 29.79 in 6.0 mi South 5.8 mph - N/A   Overcast
5:54 AM 34.0 °F 28.8 °F 32.0 °F 92% 29.81 in 6.0 mi South 5.8 mph - N/A   Overcast
6:54 AM 34.0 °F 28.0 °F 32.0 °F 92% 29.82 in 6.0 mi South 6.9 mph - N/A   Clear
7:54 AM 34.0 °F 26.6 °F 32.0 °F 92% 29.81 in 6.0 mi South 9.2 mph - N/A   Partly Cloudy
8:54 AM 37.0 °F 29.3 °F 34.0 °F 89% 29.81 in 6.0 mi South 11.5 mph - N/A   Mostly Cloudy
9:54 AM 39.0 °F 29.6 °F 35.1 °F 86% 29.79 in 6.0 mi South 18.4 mph - N/A   Mostly Cloudy
10:54 AM 39.9 °F 30.5 °F 37.0 °F 89% 29.76 in 7.0 mi South 19.6 mph 28.8 mph N/A   Partly Cloudy
11:54 AM 44.1 °F 36.2 °F 37.9 °F 79% 29.71 in 9.0 mi South 18.4 mph 31.1 mph N/A   Clear
12:54 PM 46.0 °F 37.6 °F 39.0 °F 76% 29.65 in 10.0 mi South 24.2 mph 31.1 mph N/A   Clear
1:54 PM 48.0 °F - 39.0 °F 71% 29.64 in 10.0 mi South 21.9 mph 28.8 mph N/A   Clear
2:54 PM 50.0 °F - 39.0 °F 66% 29.63 in 10.0 mi SSW 19.6 mph 33.4 mph N/A   Clear
3:54 PM 48.9 °F - 39.9 °F 71% 29.63 in 10.0 mi SSW 21.9 mph 26.5 mph N/A   Clear
4:54 PM 46.9 °F - 39.9 °F 77% 29.65 in 10.0 mi SW 16.1 mph 24.2 mph N/A   Clear
5:54 PM 45.0 °F 39.7 °F 39.9 °F 82% 29.68 in 10.0 mi WSW 10.4 mph - N/A   Clear
6:54 PM 46.9 °F - 37.9 °F 71% 29.74 in 10.0 mi WNW 15.0 mph 21.9 mph N/A   Clear
7:11 PM 42.8 °F 34.5 °F 33.8 °F 70% 29.75 in 10.0 mi WNW 18.4 mph 31.1 mph N/A   Clear
7:54 PM 37.9 °F 29.2 °F 33.1 °F 83% 29.80 in 10.0 mi WNW 15.0 mph 26.5 mph N/A   Clear
8:54 PM 37.0 °F 28.5 °F 32.0 °F 82% 29.82 in 10.0 mi WNW 13.8 mph 20.7 mph N/A   Clear
9:54 PM 37.0 °F 29.3 °F 32.0 °F 82% 29.84 in 10.0 mi WNW 11.5 mph - N/A   Clear
10:21 PM 37.4 °F 31.4 °F 32.0 °F 81% 29.84 in 10.0 mi West 8.1 mph - N/A   Mostly Cloudy
10:54 PM 37.0 °F 30.4 °F 33.1 °F 86% 29.87 in 9.0 mi WNW 9.2 mph - N/A   Overcast
11:54 PM 37.9 °F 30.5 °F 34.0 °F 86% 29.91 in 9.0 mi NW 11.5 mph 18.4 mph N/A   Overcast