San Jose, CA

11:58 AM PDT on June 22, 2018 (GMT -0700)
San Jose International

Weather History for KSJC - September, 2017

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Wednesday, September 13, 2017

  Actual Average Record
Temperature  
Mean Temperature 73 °F 69 °F  
Max Temperature 80 °F 81 °F 102 °F (1971)
Min Temperature 66 °F 57 °F 37 °F (1894)
Degree Days  
Heating Degree Days 0 0  
Month to date heating degree days 0 0  
Since 1 July heating degree days 0 6  
Cooling Degree Days 8 4  
Month to date cooling degree days 195 59  
Year to date cooling degree days 840 542  
Growing Degree Days 23 (Base 50)    
Moisture  
Dew Point 60 °F    
Average Humidity 65    
Maximum Humidity 78    
Minimum Humidity 51    
Precipitation  
Precipitation 0.00 in 0.00 in 0.19 in (2009)
Month to date precipitation 0.04 0.04  
Year to date precipitation 14.08 10.59  
Sea Level Pressure  
Sea Level Pressure 29.85 in    
Wind  
Wind Speed 7 mph (South)    
Max Wind Speed 14 mph    
Max Gust Speed 19 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Astronomy

Sep. 13, 2017 Rise Set
Actual Time 6:48 AM PDT 7:17 PM PDT
Civil Twilight 6:22 AM PDT 7:44 PM PDT
Nautical Twilight 5:51 AM PDT 8:14 PM PDT
Astronomical Twilight 5:19 AM PDT 8:46 PM PDT
Moon 12:01 AM PDT (9/13) 2:34 PM PDT (9/13)
Length of Visible Light 13h 21m
Length of Day
12h 29m
Last Quarter, 44% of the Moon is Illuminated
Sep 13
Last Quarter
Sep 19
New
Sep 27
First Quarter
Oct 5
Full
Oct 12
Last Quarter

Hourly Weather History & Observations

Time (PDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 69.1 °F - 63.0 °F 81% 29.88 in 10.0 mi South 3.5 mph - N/A   Overcast
1:53 AM 68.0 °F - 61.0 °F 78% 29.87 in 10.0 mi South 5.8 mph - N/A   Overcast
2:53 AM 68.0 °F - 61.0 °F 78% 29.86 in 10.0 mi SSW 5.8 mph - N/A   Overcast
3:53 AM 69.1 °F - 61.0 °F 75% 29.86 in 10.0 mi SSE 3.5 mph - N/A   Overcast
4:53 AM 68.0 °F - 61.0 °F 78% 29.86 in 10.0 mi South 6.9 mph - N/A   Overcast
5:53 AM 68.0 °F - 60.1 °F 76% 29.86 in 10.0 mi SSE 5.8 mph - N/A   Mostly Cloudy
6:53 AM 66.9 °F - 59.0 °F 76% 29.88 in 10.0 mi South 5.8 mph - N/A   Overcast
7:53 AM 68.0 °F - 59.0 °F 73% 29.89 in 10.0 mi South 9.2 mph - N/A   Overcast
8:37 AM 69.1 °F - 59.0 °F 70% 29.89 in 10.0 mi SSE 6.9 mph - N/A   Scattered Clouds
8:53 AM 69.1 °F - 60.1 °F 73% 29.88 in 10.0 mi SSE 9.2 mph - N/A   Partly Cloudy
9:53 AM 72.0 °F - 60.1 °F 66% 29.88 in 10.0 mi South 6.9 mph - N/A   Scattered Clouds
10:53 AM 73.9 °F - 60.1 °F 62% 29.88 in 10.0 mi SE 9.2 mph - N/A   Scattered Clouds
11:53 AM 75.9 °F - 59.0 °F 56% 29.87 in 10.0 mi South 6.9 mph - N/A   Partly Cloudy
12:53 PM 77.0 °F - 60.1 °F 56% 29.86 in 10.0 mi Variable 4.6 mph - N/A   Partly Cloudy
1:53 PM 77.0 °F - 60.1 °F 56% 29.85 in 10.0 mi NW 9.2 mph - N/A   Scattered Clouds
2:53 PM 80.1 °F 81.1 °F 61.0 °F 52% 29.83 in 10.0 mi South 8.1 mph - N/A   Scattered Clouds
4:43 PM 78.1 °F - 59.0 °F 52% 29.81 in 10.0 mi South 11.5 mph - N/A   Scattered Clouds
4:53 PM 77.0 °F - 59.0 °F 54% 29.81 in 10.0 mi South 11.5 mph - N/A   Scattered Clouds
5:53 PM 75.9 °F - 57.9 °F 54% 29.80 in 10.0 mi South 11.5 mph - N/A   Scattered Clouds
6:53 PM 73.9 °F - 57.9 °F 57% 29.81 in 10.0 mi South 3.5 mph - N/A   Mostly Cloudy
7:53 PM 71.1 °F - 60.1 °F 68% 29.82 in 10.0 mi North 6.9 mph - N/A   Scattered Clouds
8:53 PM 69.1 °F - 60.1 °F 73% 29.83 in 10.0 mi WNW 8.1 mph - N/A   Scattered Clouds
9:53 PM 68.0 °F - 57.9 °F 70% 29.84 in 10.0 mi South 4.6 mph - N/A   Mostly Cloudy
10:53 PM 66.9 °F - 57.9 °F 73% 29.84 in 10.0 mi SE 6.9 mph - N/A   Mostly Cloudy
11:33 PM 66.0 °F - 57.9 °F 75% 29.85 in 10.0 mi SE 8.1 mph - N/A   Scattered Clouds
11:53 PM 66.0 °F - 57.9 °F 75% 29.85 in 10.0 mi SSE 6.9 mph - N/A   Mostly Cloudy