Palo Alto, CA

4:05 AM PDT on April 28, 2017 (GMT -0700)
Palo Alto Of Santa Clara County

Weather History for KPAO - September, 2011

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Sunday, September 11, 2011

  Actual Average Record
Temperature  
Mean Temperature 68 °F -  
Max Temperature 75 °F 78 °F 95 °F (2003)
Min Temperature 62 °F 52 °F 46 °F (1977)
Cooling Degree Days 4    
Growing Degree Days 18 (Base 50)    
Moisture  
Dew Point 60 °F    
Average Humidity 73    
Maximum Humidity 88    
Minimum Humidity 61    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.97 in    
Wind  
Wind Speed 10 mph (NNE)    
Max Wind Speed 17 mph    
Max Gust Speed 23 mph    
Visibility 12 miles    
Events      
Averages and records for this station are not official NWS values.
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Sep. 11, 2011 Rise Set
Actual Time 6:46 AM PDT 7:22 PM PDT
Civil Twilight 6:20 AM PDT 7:48 PM PDT
Nautical Twilight 5:49 AM PDT 8:19 PM PDT
Astronomical Twilight 5:17 AM PDT 8:51 PM PDT
Moon 6:48 PM PDT (9/11) 6:10 AM PDT (9/11)
Length of Visible Light 13h 28m
Length of Day
12h 35m
Full, 100% of the Moon is Illuminated
Sep 11
Full
Sep 12
Full
Sep 20
Last Quarter
Sep 27
New
Oct 3
First Quarter

Hourly Weather History & Observations

Time (PDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
6:47 AM 62.6 °F 59.0 °F 88% 29.92 in 7.0 mi NNE 8.1 mph - N/A   Mostly Cloudy
7:47 AM 62.6 °F 59.0 °F 88% 29.94 in 7.0 mi NNE 5.8 mph - N/A   Mostly Cloudy
8:47 AM 64.4 °F 59.0 °F 83% 29.96 in 7.0 mi Variable 5.8 mph - N/A   Overcast
9:47 AM 66.2 °F 60.8 °F 83% 29.97 in 7.0 mi ENE 6.9 mph - N/A   Mostly Cloudy
10:47 AM 68.0 °F 59.0 °F 73% 29.99 in 7.0 mi ENE 9.2 mph - N/A   Mostly Cloudy
11:47 AM 71.6 °F 60.8 °F 69% 29.99 in 10.0 mi East 10.4 mph - N/A   Mostly Cloudy
12:47 PM 73.4 °F 60.8 °F 65% 29.98 in 10.0 mi NNE 9.2 mph - N/A   Mostly Cloudy
1:47 PM 75.2 °F 60.8 °F 61% 29.97 in 10.0 mi North 16.1 mph - N/A   Scattered Clouds
2:47 PM 75.2 °F 60.8 °F 61% 29.96 in 15.0 mi North 15.0 mph - N/A   Scattered Clouds
3:47 PM 75.2 °F 60.8 °F 61% 29.95 in 15.0 mi North 17.3 mph - N/A   Partly Cloudy
4:47 PM 73.4 °F 60.8 °F 65% 29.95 in 15.0 mi NNW 16.1 mph 23.0 mph N/A   Partly Cloudy
5:47 PM 71.6 °F 59.0 °F 64% 29.96 in 20.0 mi NNW 11.5 mph 23.0 mph N/A   Partly Cloudy
6:47 PM 68.0 °F 59.0 °F 73% 29.97 in 30.0 mi North 15.0 mph - N/A   Partly Cloudy
7:47 PM 66.2 °F 59.0 °F 78% 29.99 in 25.0 mi North 15.0 mph - N/A   Partly Cloudy
8:47 PM 64.4 °F 59.0 °F 83% 30.02 in 20.0 mi North 15.0 mph - N/A   Partly Cloudy