San Jose, CA

7:29 AM PDT on October 23, 2017 (GMT -0700)
San Jose International

Weather History for KSJC - September, 2012

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Monday, September 10, 2012

  Actual Average Record
Temperature  
Mean Temperature 67 °F 69 °F  
Max Temperature 83 °F 81 °F 98 °F (1903)
Min Temperature 50 °F 57 °F 42 °F (1893)
Degree Days  
Heating Degree Days 0 0  
Month to date heating degree days 2 0  
Since 1 July heating degree days 6 6  
Cooling Degree Days 2 4  
Month to date cooling degree days 20 47  
Year to date cooling degree days 416 530  
Growing Degree Days 16 (Base 50)    
Moisture  
Dew Point 51 °F    
Average Humidity 65    
Maximum Humidity 100    
Minimum Humidity 30    
Precipitation  
Precipitation 0.00 in 0.01 in 0.03 in (2003)
Month to date precipitation 0.01 0.03  
Year to date precipitation 5.55 10.58  
Since 1 July precipitation 0.01  
Sea Level Pressure  
Sea Level Pressure 29.89 in    
Wind  
Wind Speed 4 mph (WNW)    
Max Wind Speed 16 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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Daily Weather History Graph

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Date:

Astronomy

Sep. 10, 2012 Rise Set
Actual Time 6:46 AM PDT 7:22 PM PDT
Civil Twilight 6:19 AM PDT 7:48 PM PDT
Nautical Twilight 5:48 AM PDT 8:19 PM PDT
Astronomical Twilight 5:16 AM PDT 8:51 PM PDT
Moon 1:17 AM PDT (9/10) 3:50 PM PDT (9/10)
Length of Visible Light 13h 28m
Length of Day
12h 36m
Waning Crescent, 29% of the Moon is Illuminated
Sep 10
Waning Crescent
Sep 15
New
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last 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 55.9 °F 51.1 °F 84% 29.94 in 10.0 mi WNW 5.8 mph - N/A   Clear
1:53 AM 55.0 °F 52.0 °F 89% 29.93 in 10.0 mi NW 4.6 mph - N/A   Clear
2:53 AM 55.0 °F 53.1 °F 93% 29.93 in 10.0 mi NW 3.5 mph - N/A   Clear
3:53 AM 54.0 °F 53.1 °F 97% 29.92 in 10.0 mi Calm Calm - N/A   Clear
4:53 AM 52.0 °F 48.9 °F 89% 29.92 in 10.0 mi SSW 3.5 mph - N/A   Clear
5:53 AM 51.1 °F 48.0 °F 89% 29.91 in 10.0 mi Calm Calm - N/A   Clear
6:53 AM 51.1 °F 48.0 °F 89% 29.92 in 10.0 mi Calm Calm - N/A   Partly Cloudy
7:53 AM 54.0 °F 50.0 °F 86% 29.93 in 10.0 mi Calm Calm - N/A   Clear
8:53 AM 57.9 °F 52.0 °F 81% 29.94 in 10.0 mi Calm Calm - N/A   Clear
9:53 AM 61.0 °F 52.0 °F 72% 29.93 in 10.0 mi Calm Calm - N/A   Clear
10:53 AM 66.9 °F 51.1 °F 57% 29.93 in 10.0 mi Calm Calm - N/A   Clear
11:53 AM 71.6 °F 51.8 °F 50% 29.92 in 10.0 mi NW 4.6 mph - N/A   Clear
12:53 PM 75.0 °F 51.1 °F 43% 29.90 in 10.0 mi Calm Calm - N/A   Clear
1:53 PM 79.0 °F 45.0 °F 30% 29.88 in 10.0 mi NW 5.8 mph - N/A   Clear
2:53 PM 82.0 °F 48.0 °F 30% 29.85 in 10.0 mi Variable 5.8 mph - N/A   Clear
3:53 PM 81.0 °F 48.9 °F 33% 29.83 in 10.0 mi WNW 11.5 mph - N/A   Clear
4:53 PM 81.0 °F 51.1 °F 35% 29.83 in 10.0 mi WNW 12.7 mph - N/A   Clear
5:53 PM 79.0 °F 52.0 °F 39% 29.82 in 10.0 mi WNW 11.5 mph - N/A   Clear
6:53 PM 75.0 °F 53.1 °F 46% 29.82 in 10.0 mi West 11.5 mph - N/A   Clear
7:53 PM 69.1 °F 50.0 °F 51% 29.84 in 10.0 mi WNW 10.4 mph - N/A   Clear
8:53 PM 66.9 °F 52.0 °F 59% 29.85 in 10.0 mi West 5.8 mph - N/A   Clear
9:53 PM 64.9 °F 54.0 °F 68% 29.86 in 10.0 mi WSW 5.8 mph - N/A   Clear
10:53 PM 62.1 °F 55.0 °F 78% 29.86 in 10.0 mi Calm Calm - N/A   Clear
11:53 PM 61.0 °F 52.0 °F 72% 29.86 in 10.0 mi South 3.5 mph - N/A   Clear