Langley AFB, VA

5:51 AM EDT on May 21, 2018 (GMT -0400)
Langley Air Force Base

Weather History for KLFI - August, 2012

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Friday, August 17, 2012

  Actual Average Record
Temperature  
Mean Temperature 78 °F -  
Max Temperature 88 °F 85 °F 97 °F (1988)
Min Temperature 69 °F 71 °F 57 °F (1963)
Cooling Degree Days 13    
Growing Degree Days 28 (Base 50)    
Moisture  
Dew Point 62 °F    
Average Humidity 59    
Maximum Humidity 86    
Minimum Humidity 30    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.91 in    
Wind  
Wind Speed 8 mph (SSW)    
Max Wind Speed 13 mph    
Max Gust Speed -    
Visibility 9 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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Daily Weather History Graph

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Astronomy

Aug. 17, 2012 Rise Set
Actual Time 6:24 AM EDT 7:53 PM EDT
Civil Twilight 5:56 AM EDT 8:21 PM EDT
Nautical Twilight 5:23 AM EDT 8:54 PM EDT
Astronomical Twilight 4:48 AM EDT 9:28 PM EDT
Moon 6:23 AM EDT (8/17) 7:38 PM EDT (8/17)
Length of Visible Light 14h 24m
Length of Day
13h 29m
New Moon, 0% of the Moon is Illuminated
Aug 17
New Moon
Aug 24
First Quarter
Aug 31
Full
Sep 8
Last Quarter
Sep 15
New

Hourly Weather History & Observations

Time (EDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:55 AM 73.9 °F - 63.3 °F 69% 29.99 in 10.0 mi SSW 5.8 mph - N/A   Clear
1:55 AM 73.8 °F - 63.5 °F 70% 29.96 in 10.0 mi South 6.9 mph - N/A   Clear
2:18 AM 73.4 °F - 64.4 °F 73% 29.96 in 9.0 mi South 8.1 mph - N/A   Clear
2:55 AM 72.1 °F - 65.5 °F 79% 29.96 in 8.0 mi South 9.2 mph - N/A   Clear
3:55 AM 70.7 °F - 66.4 °F 86% 29.94 in 7.0 mi SSW 6.9 mph - N/A   Clear
4:55 AM 71.6 °F - 66.2 °F 83% 29.93 in 7.0 mi SSW 6.9 mph - N/A   Clear
5:55 AM 71.1 °F - 65.7 °F 83% 29.92 in 6.0 mi SSW 8.1 mph - N/A   Haze
6:11 AM 69.8 °F - 64.4 °F 83% 29.93 in 5.0 mi WSW 4.6 mph - N/A   Haze
6:55 AM 70.9 °F - 66.0 °F 85% 29.92 in 5.0 mi South 6.9 mph - N/A   Haze
7:55 AM 74.3 °F - 65.7 °F 74% 29.94 in 7.0 mi SSW 5.8 mph - N/A   Clear
8:55 AM 79.0 °F - 63.0 °F 58% 29.94 in 9.0 mi SSW 10.4 mph - N/A   Clear
9:55 AM 81.7 °F 82.7 °F 62.6 °F 52% 29.95 in 10.0 mi SW 9.2 mph - N/A   Clear
10:55 AM 83.3 °F 83.9 °F 61.5 °F 48% 29.95 in 10.0 mi SSW 10.4 mph - N/A   Clear
11:55 AM 84.7 °F 85.2 °F 61.9 °F 46% 29.94 in 10.0 mi SW 10.4 mph - N/A   Clear
12:55 PM 86.4 °F 85.2 °F 57.4 °F 37% 29.92 in 10.0 mi SSW 6.9 mph - N/A   Clear
1:55 PM 87.4 °F - 52.0 °F 30% 29.90 in 10.0 mi SSW 8.1 mph - N/A   Scattered Clouds
2:55 PM 87.8 °F 85.9 °F 54.1 °F 32% 29.88 in 10.0 mi SW 8.1 mph - N/A   Partly Cloudy
3:55 PM 87.8 °F 85.7 °F 53.8 °F 31% 29.87 in 10.0 mi SW 11.5 mph - N/A   Partly Cloudy
4:55 PM 87.8 °F 86.1 °F 55.4 °F 33% 29.84 in 10.0 mi South 11.5 mph - N/A   Clear
5:55 PM 86.7 °F 84.9 °F 54.7 °F 33% 29.83 in 10.0 mi Calm Calm - N/A   Partly Cloudy
6:55 PM 86.0 °F 86.1 °F 61.3 °F 43% 29.82 in 10.0 mi ESE 9.2 mph - N/A   Scattered Clouds
7:55 PM 83.7 °F 85.1 °F 64.4 °F 52% 29.83 in 10.0 mi South 9.2 mph - N/A   Mostly Cloudy
8:55 PM 81.9 °F 83.7 °F 65.1 °F 57% 29.86 in 10.0 mi South 12.7 mph - N/A   Clear
9:55 PM 80.1 °F 82.1 °F 66.2 °F 62% 29.87 in 10.0 mi South 10.4 mph - N/A   Clear
10:55 PM 79.5 °F - 68.4 °F 69% 29.86 in 10.0 mi South 8.1 mph - N/A   Clear
11:55 PM 79.0 °F - 69.3 °F 72% 29.85 in 10.0 mi South 9.2 mph - N/A   Scattered Clouds