Weather History for Palo Alto, CA

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Sunday, August 12, 2012

  Actual Average Record
Temperature  
Mean Temperature 68 °F -  
Max Temperature 77 °F 76 °F 95 °F (1959)
Min Temperature 59 °F 55 °F 48 °F (1957)
Cooling Degree Days 3    
Growing Degree Days 18 (Base 50)    
Moisture  
Dew Point 58 °F    
Average Humidity 73    
Maximum Humidity 88    
Minimum Humidity 54    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.84 in    
Wind  
Wind Speed 8 mph (NNW)    
Max Wind Speed 17 mph    
Max Gust Speed -    
Visibility 9 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

Aug. 12, 2012 Rise Set
Actual Time 6:22 AM PDT 8:03 PM PDT
Civil Twilight 5:54 AM PDT 8:31 PM PDT
Nautical Twilight 5:20 AM PDT 9:05 PM PDT
Astronomical Twilight 4:44 AM PDT 9:41 PM PDT
Moon 1:42 AM PDT (8/12) 4:30 PM PDT (8/12)
Length of Visible Light 14h 37m
Length of Day
13h 41m
Waning Crescent, 23% of the Moon is Illuminated
Aug 12
Waning Crescent
Aug 17
New
Aug 24
First Quarter
Aug 31
Full
Sep 8
Last 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 59.0 °F 55.4 °F 88% 29.85 in 6.0 mi Variable 4.6 mph - N/A   Overcast
7:55 AM 59.0 °F 55.4 °F 88% 29.86 in 7.0 mi Variable 4.6 mph - N/A   Overcast
8:47 AM 60.8 °F 57.2 °F 88% 29.87 in 7.0 mi Variable 4.6 mph - N/A   Overcast
9:47 AM 62.6 °F 57.2 °F 82% 29.87 in 7.0 mi Variable 4.6 mph - N/A   Mostly Cloudy
10:19 AM 64.4 °F 57.2 °F 77% 29.87 in 10.0 mi NNE 9.2 mph - N/A   Scattered Clouds
10:47 AM 64.4 °F 59.0 °F 83% 29.87 in 15.0 mi North 6.9 mph - N/A   Clear
11:47 AM 68.0 °F 59.0 °F 73% 29.85 in 25.0 mi North 9.2 mph - N/A   Clear
12:47 PM 71.6 °F 59.0 °F 64% 29.85 in 25.0 mi North 13.8 mph - N/A   Clear
1:47 PM 73.4 °F 59.0 °F 61% 29.83 in 30.0 mi NW 9.2 mph - N/A   Clear
2:47 PM 77.0 °F 59.0 °F 54% 29.82 in 30.0 mi NW 9.2 mph - N/A   Clear
3:47 PM 73.4 °F 59.0 °F 61% 29.81 in 30.0 mi SW 17.3 mph - N/A   Clear
4:47 PM 75.2 °F 59.0 °F 57% 29.80 in 30.0 mi NNW 12.7 mph - N/A   Clear
5:47 PM 73.4 °F 57.2 °F 57% 29.79 in 30.0 mi NNW 13.8 mph - N/A   Partly Cloudy
7:47 PM 66.2 °F 59.0 °F 78% 29.80 in 30.0 mi NW 11.5 mph - N/A   Partly Cloudy
8:47 PM 62.6 °F 57.2 °F 82% 29.81 in 30.0 mi NW 11.5 mph - N/A   Partly Cloudy