Weather History for Palo Alto, CA

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Tuesday, December 4, 2012

  Actual Average Record
Temperature  
Mean Temperature 55 °F -  
Max Temperature 60 °F 60 °F 74 °F (1958)
Min Temperature 50 °F 39 °F 26 °F (2004)
Degree Days  
Heating Degree Days 10    
Growing Degree Days 5 (Base 50)    
Moisture  
Dew Point 52 °F    
Average Humidity 81    
Maximum Humidity 100    
Minimum Humidity 63    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.20 in    
Wind  
Wind Speed 7 mph (East)    
Max Wind Speed 13 mph    
Max Gust Speed -    
Visibility 10 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

Dec. 04, 2012 Rise Set
Actual Time 7:07 AM PST 4:50 PM PST
Civil Twilight 6:38 AM PST 5:19 PM PST
Nautical Twilight 6:06 AM PST 5:51 PM PST
Astronomical Twilight 5:34 AM PST 6:23 PM PST
Moon 10:38 PM PST (12/4) 11:08 AM PST (12/4)
Length of Visible Light 10h 40m
Length of Day
9h 42m
Waning Gibbous, 68% of the Moon is Illuminated
Dec 4
Waning Gibbous
Dec 6
Last Quarter
Dec 13
New
Dec 19
First Quarter
Dec 28
Full

Hourly Weather History & Observations

Time (PST) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
7:47 AM 50.0 °F 50.0 °F 100% 30.22 in 30.0 mi Variable 4.6 mph - N/A   Mostly Cloudy
8:47 AM 55.4 °F 51.8 °F 88% 30.22 in 30.0 mi Variable 3.5 mph - N/A   Overcast
9:47 AM 57.2 °F 53.6 °F 88% 30.23 in 30.0 mi Variable 4.6 mph - N/A   Overcast
10:47 AM 57.2 °F 51.8 °F 82% 30.22 in 30.0 mi SE 9.2 mph - N/A   Overcast
11:47 AM 60.8 °F 51.8 °F 72% 30.20 in 30.0 mi Variable 5.8 mph - N/A   Overcast
1:47 PM 60.8 °F 55.4 °F 82% 30.17 in 30.0 mi North 8.1 mph - N/A   Overcast
2:47 PM 60.8 °F 53.6 °F 77% 30.17 in 25.0 mi NNW 10.4 mph - N/A   Overcast
3:47 PM 60.8 °F 53.6 °F 77% 30.19 in 25.0 mi NNW 8.1 mph - N/A   Overcast
4:52 PM 59.0 °F 55.4 °F 88% 30.19 in 25.0 mi Variable 5.8 mph - N/A   Overcast
5:52 PM 59.0 °F 55.4 °F 88% 30.18 in 10.0 mi SE 10.4 mph - N/A   Mostly Cloudy
6:47 PM 60.8 °F 48.2 °F 63% 30.18 in 10.0 mi SE 8.1 mph - N/A   Mostly Cloudy
7:47 PM 60.8 °F 48.2 °F 63% 30.18 in 10.0 mi SSE 12.7 mph - N/A   Mostly Cloudy