Weather History for KSJC - September, 2013

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Saturday, September 14, 2013

  Actual Average Record
Temperature  
Mean Temperature 66 °F 70 °F  
Max Temperature 72 °F 82 °F 104 °F (1971)
Min Temperature 59 °F 57 °F 39 °F (1894)
Degree Days  
Heating Degree Days 0 0  
Month to date heating degree days 0 0  
Since 1 July heating degree days 1 3  
Cooling Degree Days 1 5  
Month to date cooling degree days 81 75  
Year to date cooling degree days 506 621  
Growing Degree Days 15 (Base 50)    
Moisture  
Dew Point 55 °F    
Average Humidity 72    
Maximum Humidity 87    
Minimum Humidity 57    
Precipitation  
Precipitation 0.00 in 0.01 in 0.05 in (1910)
Month to date precipitation T 0.05  
Year to date precipitation 2.24 9.94  
Since 1 July precipitation T 0.05  
Sea Level Pressure  
Sea Level Pressure 29.82 in    
Wind  
Wind Speed 8 mph (NNW)    
Max Wind Speed 14 mph    
Max Gust Speed 18 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Sep. 14, 2013 Rise Set
Actual Time 6:49 AM PDT 7:16 PM PDT
Civil Twilight 6:22 AM PDT 7:42 PM PDT
Nautical Twilight 5:52 AM PDT 8:13 PM PDT
Astronomical Twilight 5:20 AM PDT 8:44 PM PDT
Moon 3:57 PM PDT (9/14) 1:31 AM PDT (9/14)
Length of Visible Light 13h 19m
Length of Day
12h 27m
Waxing Gibbous, 73% of the Moon is Illuminated
Sep 14
Waxing Gibbous
Sep 19
Full
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter

Hourly Weather History & Observations

Time (PDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 59.0 °F 55.0 °F 87% 29.82 in 10.0 mi NNW 5.8 mph - N/A   Clear
1:51 AM 59.0 °F 55.4 °F 88% 29.82 in 10.0 mi NW 4.6 mph - N/A   Mostly Cloudy
1:53 AM 59.0 °F 55.0 °F 87% 29.82 in 10.0 mi NW 3.5 mph - N/A   Mostly Cloudy
2:53 AM 59.0 °F 55.0 °F 87% 29.81 in 10.0 mi North 5.8 mph - N/A   Overcast
3:53 AM 59.0 °F 54.0 °F 83% 29.81 in 10.0 mi NNW 4.6 mph - N/A   Overcast
4:53 AM 59.0 °F 54.0 °F 83% 29.81 in 10.0 mi NW 8.1 mph - N/A   Overcast
5:53 AM 60.1 °F 55.0 °F 83% 29.81 in 10.0 mi NW 4.6 mph - N/A   Overcast
6:53 AM 60.1 °F 54.0 °F 80% 29.82 in 10.0 mi North 5.8 mph - N/A   Overcast
7:53 AM 60.1 °F 54.0 °F 80% 29.83 in 10.0 mi North 4.6 mph - N/A   Overcast
8:53 AM 61.0 °F 54.0 °F 78% 29.84 in 10.0 mi NW 5.8 mph - N/A   Overcast
9:31 AM 60.8 °F 55.4 °F 82% 29.85 in 10.0 mi NNW 6.9 mph - N/A   Overcast
9:53 AM 62.1 °F 55.0 °F 78% 29.85 in 10.0 mi Variable 6.9 mph - N/A   Overcast
10:53 AM 64.0 °F 54.0 °F 70% 29.85 in 10.0 mi North 6.9 mph - N/A   Mostly Cloudy
11:51 AM 66.2 °F 55.4 °F 68% 29.84 in 10.0 mi North 5.8 mph - N/A   Scattered Clouds
11:53 AM 66.9 °F 55.0 °F 66% 29.84 in 10.0 mi North 5.8 mph - N/A   Scattered Clouds
12:53 PM 68.0 °F 55.9 °F 65% 29.83 in 10.0 mi WNW 9.2 mph - N/A   Partly Cloudy
1:53 PM 69.1 °F 55.9 °F 63% 29.81 in 10.0 mi WNW 10.4 mph - N/A   Partly Cloudy
2:53 PM 71.1 °F 55.9 °F 59% 29.80 in 10.0 mi NW 10.4 mph - N/A   Clear
3:53 PM 70.0 °F 55.9 °F 61% 29.79 in 10.0 mi WNW 12.7 mph - N/A   Clear
4:53 PM 69.1 °F 55.9 °F 63% 29.78 in 10.0 mi NNW 11.5 mph - N/A   Clear
5:53 PM 69.1 °F 55.0 °F 61% 29.77 in 10.0 mi NW 10.4 mph - N/A   Clear
6:53 PM 66.0 °F 55.9 °F 70% 29.78 in 10.0 mi NW 10.4 mph - N/A   Clear
7:53 PM 63.0 °F 55.0 °F 75% 29.79 in 10.0 mi NW 11.5 mph - N/A   Clear
8:53 PM 62.1 °F 55.0 °F 78% 29.80 in 10.0 mi NNW 6.9 mph - N/A   Clear
9:53 PM 61.0 °F 55.0 °F 81% 29.81 in 10.0 mi NNW 8.1 mph - N/A   Partly Cloudy
10:53 PM 60.1 °F 55.0 °F 83% 29.81 in 10.0 mi NNW 5.8 mph - N/A   Partly Cloudy
11:53 PM 60.1 °F 54.0 °F 80% 29.82 in 10.0 mi NNW 6.9 mph - N/A   Partly Cloudy