Weather History for Manassas, VA

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Monday, May 21, 2012

  Actual Average Record
Temperature  
Mean Temperature 66 °F -  
Max Temperature 69 °F 71 °F 84 °F (1998)
Min Temperature 64 °F 50 °F 33 °F (2002)
Cooling Degree Days 2    
Growing Degree Days 16 (Base 50)    
Moisture  
Dew Point 66 °F    
Average Humidity 96    
Maximum Humidity 100    
Minimum Humidity 83    
Precipitation  
Precipitation 0.44 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.99 in    
Wind  
Wind Speed 6 mph (ENE)    
Max Wind Speed 12 mph    
Max Gust Speed 16 mph    
Visibility 6 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

May. 21, 2012 Rise Set
Actual Time 5:52 AM EDT 8:21 PM EDT
Civil Twilight 5:22 AM EDT 8:51 PM EDT
Nautical Twilight 4:44 AM EDT 9:29 PM EDT
Astronomical Twilight 4:02 AM EDT 10:11 PM EDT
Moon 6:14 AM EDT (5/21) 9:09 PM EDT (5/21)
Length of Visible Light 15h 29m
Length of Day
14h 28m
New Moon, 0% of the Moon is Illuminated
May 21
New Moon
May 28
First Quarter
Jun 4
Full
Jun 11
Last Quarter
Jun 19
New

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 69.8 °F 64.4 °F 83% 30.08 in 10.0 mi NE 5.8 mph - N/A   Overcast
12:35 AM 68.0 °F 64.4 °F 88% 30.08 in 10.0 mi NE 5.8 mph - N/A   Overcast
12:55 AM 68.0 °F 66.2 °F 94% 30.07 in 8.0 mi NE 9.2 mph - N/A   Overcast
1:15 AM 68.0 °F 64.4 °F 88% 30.06 in 10.0 mi NE 6.9 mph - N/A   Overcast
1:35 AM 68.0 °F 64.4 °F 88% 30.05 in 10.0 mi NE 9.2 mph 16.1 mph N/A   Overcast
1:55 AM 68.0 °F 64.4 °F 88% 30.05 in 10.0 mi NE 8.1 mph - N/A   Overcast
2:15 AM 68.0 °F 64.4 °F 88% 30.05 in 10.0 mi NE 9.2 mph - N/A   Overcast
2:35 AM 66.2 °F 64.4 °F 94% 30.05 in 5.0 mi ENE 8.1 mph - N/A   Overcast
2:55 AM 66.2 °F 64.4 °F 94% 30.04 in 6.0 mi ENE 8.1 mph - N/A   Overcast
3:15 AM 66.2 °F 64.4 °F 94% 30.04 in 10.0 mi ENE 6.9 mph - N/A   Overcast
3:35 AM 66.2 °F 64.4 °F 94% 30.04 in 10.0 mi NE 5.8 mph - N/A   Overcast
3:55 AM 66.2 °F 64.4 °F 94% 30.04 in 5.0 mi NNE 4.6 mph - N/A   Overcast
4:15 AM 66.2 °F 64.4 °F 94% 30.03 in 5.0 mi NE 5.8 mph - N/A   Overcast
4:35 AM 64.4 °F 64.4 °F 100% 30.03 in 8.0 mi NNE 5.8 mph - N/A   Overcast
4:55 AM 64.4 °F 64.4 °F 100% 30.03 in 5.0 mi NE 4.6 mph - N/A   Overcast
5:15 AM 64.4 °F 64.4 °F 100% 30.03 in 3.0 mi NE 6.9 mph - 0.01 in   Overcast
5:35 AM 64.4 °F 64.4 °F 100% 30.03 in 2.0 mi NNE 3.5 mph - 0.01 in   Overcast
5:55 AM 64.4 °F 62.6 °F 94% 30.03 in 5.0 mi Calm Calm - 0.03 in   Overcast
6:15 AM 64.4 °F 64.4 °F 100% 30.03 in 3.0 mi North 4.6 mph - 0.01 in   Overcast
6:35 AM 64.4 °F 62.6 °F 94% 30.04 in 3.0 mi NE 5.8 mph - 0.03 in   Overcast
7:45 AM 64.4 °F 62.6 °F 94% 30.03 in 1.5 mi NNE 5.8 mph - N/A Rain Rain
8:50 AM 64.4 °F 64.4 °F 100% 30.03 in 2.0 mi NE 6.9 mph - N/A Rain Rain
11:50 AM 68.0 °F 66.2 °F 94% 30.01 in 5.0 mi ESE 8.1 mph - N/A   Overcast
12:50 PM 68.0 °F 66.2 °F 94% 30.01 in 1.0 mi ESE 6.9 mph - N/A Rain Rain
1:45 PM 68.0 °F 68.0 °F 100% 30.00 in 2.0 mi SE 5.8 mph - N/A Rain Rain
2:20 PM 69.8 °F 68.0 °F 94% 29.99 in 5.0 mi SE 6.9 mph - N/A Rain Rain
2:55 PM 69.8 °F 68.0 °F 94% 29.98 in 5.0 mi SSE 10.4 mph - N/A   Overcast
3:55 PM 69.8 °F 66.2 °F 88% 29.97 in 10.0 mi SSE 11.5 mph 16.1 mph N/A   Overcast
4:45 PM 69.8 °F 68.0 °F 94% 29.95 in 5.0 mi SSE 5.8 mph - N/A   Overcast
5:30 PM 69.8 °F 68.0 °F 94% 29.95 in 4.0 mi SE 4.6 mph - N/A   Overcast
5:50 PM 68.0 °F 68.0 °F 100% 29.94 in 1.5 mi SE 4.6 mph - N/A   Overcast
6:45 PM 68.0 °F 68.0 °F 100% 29.93 in 10.0 mi Calm Calm - N/A   Overcast
7:50 PM 68.0 °F 68.0 °F 100% 29.92 in 2.0 mi Calm Calm - N/A   Overcast
7:55 PM 68.0 °F 68.0 °F 100% 29.92 in 3.0 mi Calm Calm - 0.01 in   Overcast
8:15 PM 68.0 °F 68.0 °F 100% 29.92 in 6.0 mi Calm Calm - 0.01 in   Overcast
8:35 PM 68.0 °F 68.0 °F 100% 29.92 in 5.0 mi Calm Calm - 0.01 in   Overcast
8:55 PM 68.0 °F 68.0 °F 100% 29.92 in 7.0 mi Calm Calm - 0.01 in   Overcast
9:15 PM 68.0 °F 68.0 °F 100% 29.92 in 5.0 mi NW 3.5 mph - 0.01 in   Overcast
9:35 PM 68.0 °F 68.0 °F 100% 29.92 in 5.0 mi Calm Calm - 0.03 in   Overcast
9:55 PM 68.0 °F 68.0 °F 100% 29.92 in 4.0 mi West 3.5 mph - 0.05 in   Overcast
10:15 PM 68.0 °F 68.0 °F 100% 29.93 in 3.0 mi East 4.6 mph - 0.04 in Thunderstorm Overcast
10:35 PM 68.0 °F 66.2 °F 94% 29.92 in 3.0 mi East 4.6 mph - 0.09 in Thunderstorm Thunderstorm
10:55 PM 66.2 °F 66.2 °F 100% 29.92 in 7.0 mi ESE 6.9 mph - 0.14 in Thunderstorm Mostly Cloudy
11:15 PM 66.2 °F 66.2 °F 100% 29.91 in 6.0 mi ESE 6.9 mph - 0.06 in Thunderstorm Thunderstorm
11:35 PM 66.2 °F 66.2 °F 100% 29.91 in 4.0 mi Calm Calm - 0.12 in Thunderstorm Overcast
11:55 PM 66.2 °F 66.2 °F 100% 29.91 in 10.0 mi NNW 5.8 mph - 0.17 in Thunderstorm Thunderstorm