Weather History for KVSF - January, 2013

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Friday, January 18, 2013

  Actual Average Record
Temperature  
Mean Temperature 13 °F 19 °F  
Max Temperature 20 °F 29 °F 53 °F (2006)
Min Temperature 6 °F 9 °F -17 °F (2003)
Degree Days  
Heating Degree Days 52 46  
Month to date heating degree days 711 817  
Since 1 July heating degree days 3117 3680  
Cooling Degree Days 0 0  
Month to date cooling degree days 0  
Year to date cooling degree days 0  
Moisture  
Dew Point -4 °F    
Average Humidity 54    
Maximum Humidity 76    
Minimum Humidity 31    
Precipitation  
Precipitation 0.00 in 0.09 in 1.39 in (2006)
Month to date precipitation 0.34 1.92  
Year to date precipitation 0.34 1.92  
Sea Level Pressure  
Sea Level Pressure 30.31 in    
Wind  
Wind Speed 4 mph (NW)    
Max Wind Speed 7 mph    
Max Gust Speed 8 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jan. 18, 2013 Rise Set
Actual Time 7:17 AM EST 4:43 PM EST
Civil Twilight 6:46 AM EST 5:15 PM EST
Nautical Twilight 6:11 AM EST 5:50 PM EST
Astronomical Twilight 5:37 AM EST 6:24 PM EST
Moon 10:40 AM EST (1/18) No Moon Set
Length of Visible Light 10h 28m
Length of Day
9h 26m
Waxing Crescent, 47% of the Moon is Illuminated
Jan 18
Waxing Crescent
Jan 18
First Quarter
Jan 26
Full
Feb 3
Last Quarter
Feb 10
New

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 16.0 °F 7.4 °F -5.1 °F 39% 30.13 in 10.0 mi WNW 5.8 mph - N/A   Overcast
1:54 AM 15.1 °F 9.4 °F -2.9 °F 45% 30.14 in 10.0 mi WNW 3.5 mph - N/A   Overcast
2:54 AM 14.0 °F 5.1 °F -2.9 °F 47% 30.18 in 10.0 mi WNW 5.8 mph - N/A   Partly Cloudy
3:54 AM 12.0 °F 5.9 °F -4.0 °F 49% 30.17 in 10.0 mi NNE 3.5 mph - N/A   Partly Cloudy
4:54 AM 10.0 °F 1.8 °F -5.1 °F 51% 30.21 in 10.0 mi NW 4.6 mph - N/A   Clear
5:54 AM 9.0 °F - -5.1 °F 53% 30.24 in 10.0 mi Calm Calm - N/A   Clear
6:54 AM 7.0 °F 0.1 °F -5.1 °F 58% 30.29 in 10.0 mi NW 3.5 mph - N/A   Clear
7:54 AM 7.0 °F -7.5 °F -7.1 °F 53% 30.32 in 10.0 mi WNW 10.4 mph - N/A   Clear
8:54 AM 9.0 °F 0.6 °F -8.0 °F 46% 30.36 in 10.0 mi NW 4.6 mph - N/A   Clear
9:54 AM 10.0 °F - -7.1 °F 46% 30.37 in 10.0 mi Calm Calm - N/A   Clear
10:54 AM 14.0 °F 2.9 °F -7.1 °F 39% 30.36 in 10.0 mi NNW 8.1 mph - N/A   Clear
11:54 AM 16.0 °F 7.4 °F -7.1 °F 36% 30.35 in 10.0 mi Variable 5.8 mph 21.9 mph N/A   Clear
12:54 PM 17.1 °F 4.3 °F -6.0 °F 36% 30.35 in 10.0 mi West 11.5 mph 26.5 mph N/A   Clear
1:54 PM 19.0 °F 6.8 °F -7.1 °F 31% 30.36 in 10.0 mi WNW 11.5 mph 17.3 mph N/A   Clear
2:54 PM 19.9 °F 11.1 °F -5.1 °F 33% 30.37 in 10.0 mi West 6.9 mph - N/A   Clear
3:54 PM 19.9 °F 12.1 °F -6.0 °F 32% 30.36 in 10.0 mi Variable 5.8 mph - N/A   Clear
4:54 PM 18.0 °F - -4.0 °F 38% 30.38 in 10.0 mi Calm Calm - N/A   Clear
5:54 PM 14.0 °F - -0.9 °F 52% 30.40 in 10.0 mi Calm Calm - N/A   Clear
6:54 PM 10.0 °F - 1.0 °F 67% 30.40 in 10.0 mi Calm Calm - N/A   Clear
7:54 PM 8.1 °F - -0.0 °F 70% 30.40 in 10.0 mi Calm Calm - N/A   Clear
8:54 PM 8.1 °F - -0.0 °F 70% 30.40 in 10.0 mi Calm Calm - N/A   Clear
10:54 PM 8.1 °F - 1.0 °F 73% 30.35 in 10.0 mi Calm Calm - N/A   Overcast
11:54 PM 12.0 °F - 3.9 °F 70% 30.32 in 10.0 mi Calm Calm - N/A   Overcast