Weather History for Pontiac, IL

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Sunday, August 18, 2013

  Actual Average Record
Temperature  
Mean Temperature 68 °F -  
Max Temperature 82 °F 84 °F 104 °F (1988)
Min Temperature 53 °F 63 °F 45 °F (1963)
Cooling Degree Days 2    
Growing Degree Days 18 (Base 50)    
Moisture  
Dew Point 57 °F    
Average Humidity 78    
Maximum Humidity 100    
Minimum Humidity 39    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.18 in    
Wind  
Wind Speed 1 mph (NE)    
Max Wind Speed 6 mph    
Max Gust Speed -    
Visibility 8 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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Astronomy

Aug. 18, 2013 Rise Set
Actual Time 6:07 AM CDT 7:48 PM CDT
Civil Twilight 5:38 AM CDT 8:17 PM CDT
Nautical Twilight 5:03 AM CDT 8:52 PM CDT
Astronomical Twilight 4:25 AM CDT 9:30 PM CDT
Moon 5:54 PM CDT (8/18) 3:16 AM CDT (8/18)
Length of Visible Light 14h 38m
Length of Day
13h 40m
Waxing Gibbous, 92% of the Moon is Illuminated
Aug 18
Waxing Gibbous
Aug 20
Full
Aug 28
Last Quarter
Sep 5
New
Sep 12
First Quarter

Hourly Weather History & Observations

Time (CDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 57.2 °F - 55.4 °F 94% 30.17 in 10.0 mi ENE 3.5 mph - N/A   Clear
12:35 AM 57.2 °F - 55.4 °F 94% 30.17 in 10.0 mi East 3.5 mph - N/A   Clear
12:55 AM 57.2 °F - 55.4 °F 94% 30.17 in 10.0 mi Calm Calm - N/A   Clear
1:15 AM 57.2 °F - 55.4 °F 94% 30.17 in 10.0 mi Calm Calm - N/A   Clear
1:35 AM 57.2 °F - 55.4 °F 94% 30.18 in 10.0 mi Calm Calm - N/A   Clear
1:55 AM 57.2 °F - 55.4 °F 94% 30.17 in 10.0 mi Calm Calm - N/A   Clear
2:15 AM 55.4 °F - 53.6 °F 94% 30.17 in 7.0 mi Calm Calm - N/A   Clear
2:35 AM 55.4 °F - 53.6 °F 94% 30.17 in 7.0 mi Calm Calm - N/A   Clear
2:55 AM 55.4 °F - 53.6 °F 94% 30.17 in 10.0 mi Calm Calm - N/A   Clear
3:15 AM 53.6 °F - 53.6 °F 100% 30.17 in 7.0 mi Calm Calm - N/A   Clear
3:35 AM 55.4 °F - 53.6 °F 94% 30.17 in 7.0 mi Calm Calm - N/A   Clear
3:55 AM 55.4 °F - 53.6 °F 94% 30.16 in 7.0 mi Calm Calm - N/A   Clear
4:15 AM 53.6 °F - 53.6 °F 100% 30.17 in 7.0 mi Calm Calm - N/A   Clear
4:35 AM 53.6 °F - 53.6 °F 100% 30.17 in 7.0 mi Calm Calm - N/A   Clear
4:55 AM 53.6 °F - 53.6 °F 100% 30.17 in 7.0 mi NNE 3.5 mph - N/A   Clear
5:15 AM 55.4 °F - 55.4 °F 100% 30.18 in 5.0 mi NNE 3.5 mph - N/A   Clear
5:35 AM 55.4 °F - 53.6 °F 94% 30.18 in 5.0 mi NNE 4.6 mph - N/A   Clear
5:55 AM 55.4 °F - 55.4 °F 100% 30.18 in 3.0 mi NE 3.5 mph - N/A   Clear
6:15 AM 55.4 °F - 55.4 °F 100% 30.19 in 1.0 mi Calm Calm - N/A   Mist
6:35 AM 55.4 °F - 55.4 °F 100% 30.19 in 1.8 mi Calm Calm - N/A   Mist
6:55 AM 57.2 °F - 57.2 °F 100% 30.19 in 1.2 mi Calm Calm - N/A   Mist
7:15 AM 57.2 °F - 57.2 °F 100% 30.20 in 1.8 mi Calm Calm - N/A   Mist
7:35 AM 60.8 °F - 60.8 °F 100% 30.20 in 2.5 mi Calm Calm - N/A   Clear
8:15 AM 66.2 °F - 62.6 °F 88% 30.21 in 7.0 mi Calm Calm - N/A   Clear
8:35 AM 68.0 °F - 62.6 °F 83% 30.21 in 10.0 mi NNE 3.5 mph - N/A   Clear
8:55 AM 69.8 °F - 62.6 °F 78% 30.21 in 10.0 mi Calm Calm - N/A   Clear
9:15 AM 71.6 °F - 62.6 °F 73% 30.21 in 10.0 mi Calm Calm - N/A   Clear
9:35 AM 73.4 °F - 62.6 °F 69% 30.21 in 10.0 mi Calm Calm - N/A   Clear
9:55 AM 73.4 °F - 60.8 °F 65% 30.21 in 10.0 mi ENE 3.5 mph - N/A   Clear
10:15 AM 75.2 °F - 60.8 °F 61% 30.21 in 10.0 mi NNE 4.6 mph - N/A   Clear
10:35 AM 77.0 °F - 60.8 °F 57% 30.21 in 10.0 mi NE 3.5 mph - N/A   Unknown
11:15 AM 78.8 °F - 57.2 °F 47% 30.20 in 10.0 mi Calm Calm - N/A   Unknown
11:55 AM 78.8 °F - 59.0 °F 51% 30.19 in 10.0 mi East 4.6 mph - N/A   Clear
12:15 PM 78.8 °F - 59.0 °F 51% 30.18 in 10.0 mi Calm Calm - N/A   Scattered Clouds
12:35 PM 80.6 °F 81.1 °F 59.0 °F 48% 30.18 in 10.0 mi Calm Calm - N/A   Clear
12:55 PM 78.8 °F - 57.2 °F 47% 30.17 in 10.0 mi Calm Calm - N/A   Scattered Clouds
1:15 PM 80.6 °F 81.1 °F 59.0 °F 48% 30.17 in 10.0 mi North 3.5 mph - N/A   Scattered Clouds
1:35 PM 80.6 °F 80.8 °F 57.2 °F 45% 30.16 in 10.0 mi Calm Calm - N/A   Scattered Clouds
1:55 PM 80.6 °F 81.5 °F 60.8 °F 51% 30.15 in 10.0 mi Calm Calm - N/A   Scattered Clouds
2:15 PM 80.6 °F 81.5 °F 60.8 °F 51% 30.15 in 10.0 mi East 5.8 mph - N/A   Scattered Clouds
4:55 PM 82.4 °F 81.7 °F 55.4 °F 39% 30.11 in 10.0 mi Calm Calm - N/A   Clear
5:15 PM 82.4 °F 82.0 °F 57.2 °F 42% 30.11 in 10.0 mi Calm Calm - N/A   Clear
5:35 PM 82.4 °F 82.0 °F 57.2 °F 42% 30.11 in 10.0 mi Calm Calm - N/A   Clear
5:55 PM 80.6 °F 81.5 °F 60.8 °F 51% 30.11 in 10.0 mi West 4.6 mph - N/A   Clear