Weather History for KSJC - January, 2013

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Thursday, January 10, 2013

  Actual Average Record
Temperature  
Mean Temperature 48 °F 51 °F  
Max Temperature 54 °F 59 °F 70 °F (1962)
Min Temperature 41 °F 42 °F 29 °F (1949)
Degree Days  
Heating Degree Days 17 14  
Month to date heating degree days 143 140  
Since 1 July heating degree days 835 877  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 32 °F    
Average Humidity 58    
Maximum Humidity 79    
Minimum Humidity 37    
Precipitation  
Precipitation T in 0.11 in 1.08 in (1940)
Month to date precipitation 0.23 1.06  
Year to date precipitation 0.23 1.06  
Since 1 July precipitation 7.42 6.07  
Sea Level Pressure  
Sea Level Pressure 30.13 in    
Wind  
Wind Speed 7 mph (WNW)    
Max Wind Speed 18 mph    
Max Gust Speed 24 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jan. 10, 2013 Rise Set
Actual Time 7:21 AM PST 5:09 PM PST
Civil Twilight 6:53 AM PST 5:37 PM PST
Nautical Twilight 6:20 AM PST 6:10 PM PST
Astronomical Twilight 5:49 AM PST 6:41 PM PST
Moon 6:07 AM PST (1/10) 4:22 PM PST (1/10)
Length of Visible Light 10h 44m
Length of Day
9h 47m
Waning Crescent, 1% of the Moon is Illuminated
Jan 10
Waning Crescent
Jan 11
New
Jan 18
First Quarter
Jan 26
Full
Feb 3
Last Quarter

Hourly Weather History & Observations

Time (PST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM - - - N/A% 30.12 in 10.0 mi WSW 4.6 mph - N/A   Clear
1:53 AM - - - N/A% 30.12 in 10.0 mi Calm Calm - N/A   Clear
2:53 AM - - - N/A% 30.12 in 10.0 mi Calm Calm - N/A   Clear
3:53 AM - - - N/A% 30.11 in 10.0 mi Calm Calm - N/A   Partly Cloudy
4:53 AM - - - N/A% 30.11 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
5:53 AM 42.1 °F - 36.0 °F 79% 30.11 in 10.0 mi Calm Calm - N/A   Clear
6:53 AM 41.2 °F - 36.0 °F 82% 30.12 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
7:53 AM 42.4 °F - 36.3 °F 79% 30.13 in 10.0 mi Calm Calm - N/A   Clear
8:53 AM 46.2 °F 40.8 °F 37.0 °F 70% 30.13 in 10.0 mi WNW 11.5 mph 17.3 mph N/A   Clear
9:53 AM 49.5 °F - 35.4 °F 58% 30.14 in 10.0 mi WNW 15.0 mph 19.6 mph N/A   Mostly Cloudy
10:53 AM 50.7 °F - 34.3 °F 53% 30.13 in 10.0 mi NW 11.5 mph - N/A   Clear
11:53 AM 54.1 °F - 34.2 °F 47% 30.11 in 10.0 mi NW 12.7 mph - N/A   Clear
12:53 PM 52.5 °F - 34.3 °F 50% 30.10 in 10.0 mi NW 16.1 mph - N/A   Clear
1:53 PM 50.5 °F - 33.3 °F 52% 30.09 in 10.0 mi WNW 15.0 mph - N/A   Clear
2:53 PM 54.1 °F - 28.9 °F 38% 30.10 in 10.0 mi WNW 12.7 mph - N/A   Clear
3:53 PM 50.0 °F - 27.3 °F 41% 30.10 in 10.0 mi WNW 13.8 mph - N/A   Clear
4:53 PM 48.6 °F - 30.4 °F 50% 30.11 in 10.0 mi West 10.4 mph - N/A   Clear
5:53 PM 47.7 °F - 31.3 °F 53% 30.13 in 10.0 mi West 13.8 mph - N/A   Clear
6:53 PM 46.6 °F - 32.0 °F 57% 30.15 in 10.0 mi WSW 11.5 mph - N/A   Clear
7:53 PM 46.0 °F 41.4 °F 32.0 °F 58% 30.16 in 10.0 mi West 9.2 mph - N/A   Clear
8:53 PM 44.4 °F - 29.3 °F 55% 30.17 in 10.0 mi Calm Calm - N/A   Clear
9:53 PM 43.0 °F - 28.9 °F 58% 30.19 in 10.0 mi Calm Calm - N/A   Partly Cloudy
10:53 PM 43.2 °F 41.5 °F 28.2 °F 56% 30.21 in 10.0 mi West 3.5 mph - N/A   Partly Cloudy
11:53 PM 42.1 °F 38.4 °F 27.1 °F 55% 30.21 in 10.0 mi WNW 5.8 mph - N/A   Clear