Weather History for Palo Alto, CA

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Monday, January 2, 2012

  Actual Average Record
Temperature  
Mean Temperature 50 °F -  
Max Temperature 57 °F 56 °F 67 °F (1958)
Min Temperature 44 °F 35 °F 22 °F (1960)
Degree Days  
Heating Degree Days 14    
Moisture  
Dew Point 47 °F    
Average Humidity 85    
Maximum Humidity 100    
Minimum Humidity 51    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.28 in    
Wind  
Wind Speed 5 mph (NNW)    
Max Wind Speed 8 mph    
Max Gust Speed -    
Visibility 7 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

Jan. 02, 2012 Rise Set
Actual Time 7:23 AM PST 5:01 PM PST
Civil Twilight 6:54 AM PST 5:30 PM PST
Nautical Twilight 6:21 AM PST 6:03 PM PST
Astronomical Twilight 5:49 AM PST 6:35 PM PST
Moon 12:18 PM PST (1/2) 1:24 AM PST (1/2)
Length of Visible Light 10h 36m
Length of Day
9h 38m
Waxing Gibbous, 65% of the Moon is Illuminated
Jan 2
Waxing Gibbous
Jan 8
Full
Jan 16
Last Quarter
Jan 22
New
Jan 30
First Quarter

Hourly Weather History & Observations

Time (PST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
8:47 AM 48.2 °F - 46.4 °F 93% 30.31 in 10.0 mi NNW 5.8 mph - N/A   Overcast
9:47 AM 50.0 °F - 48.2 °F 94% 30.33 in 7.0 mi Variable 4.6 mph - N/A   Overcast
10:47 AM 51.8 °F - 44.6 °F 76% 30.30 in 7.0 mi Variable 5.8 mph - N/A   Overcast
11:47 AM 53.6 °F - 48.2 °F 82% 30.30 in 7.0 mi Variable 5.8 mph - N/A   Overcast
12:47 PM 57.2 °F - 39.2 °F 51% 30.27 in 6.0 mi NNW 6.9 mph - N/A   Haze
1:47 PM 55.4 °F - 50.0 °F 82% 30.25 in 6.0 mi North 6.9 mph - N/A   Haze
2:47 PM 57.2 °F - 50.0 °F 77% 30.25 in 7.0 mi NNW 6.9 mph - N/A   Overcast
3:47 PM 55.4 °F - 50.0 °F 82% 30.26 in 7.0 mi North 8.1 mph - N/A   Mostly Cloudy
4:47 PM 55.4 °F - 50.0 °F 82% 30.26 in 7.0 mi Variable 5.8 mph - N/A   Mostly Cloudy
5:47 PM 51.8 °F - 48.2 °F 88% 30.26 in 10.0 mi Calm Calm - N/A   Partly Cloudy
6:47 PM 44.6 °F 42.2 °F 44.6 °F 100% 30.27 in 7.0 mi Variable 4.6 mph - N/A   Haze
7:47 PM 46.4 °F - 46.4 °F 100% 30.26 in 6.0 mi Calm Calm - N/A   Haze
8:47 PM 44.6 °F - 44.6 °F 100% 30.30 in 6.0 mi Calm Calm - N/A   Haze