Palo Alto, CA

2:02 PM PDT on September 20, 2017 (GMT -0700)
Palo Alto Of Santa Clara County

Weather History for KPAO - December, 2012

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Monday, December 10, 2012

  Actual Average Record
Temperature  
Mean Temperature 56 °F -  
Max Temperature 69 °F 58 °F 69 °F (2012)
Min Temperature 44 °F 39 °F 28 °F (1972)
Degree Days  
Heating Degree Days 8    
Growing Degree Days 6 (Base 50)    
Moisture  
Dew Point 45 °F    
Average Humidity 63    
Maximum Humidity 93    
Minimum Humidity 38    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.17 in    
Wind  
Wind Speed 4 mph (WNW)    
Max Wind Speed 8 mph    
Max Gust Speed -    
Visibility 20 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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Daily Weather History Graph

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Date:

Astronomy

Dec. 10, 2012 Rise Set
Actual Time 7:12 AM PST 4:50 PM PST
Civil Twilight 6:43 AM PST 5:19 PM PST
Nautical Twilight 6:10 AM PST 5:52 PM PST
Astronomical Twilight 5:38 AM PST 6:24 PM PST
Moon 4:04 AM PST (12/10) 2:42 PM PST (12/10)
Length of Visible Light 10h 36m
Length of Day
9h 37m
Waning Crescent, 9% of the Moon is Illuminated
Dec 10
Waning Crescent
Dec 13
New
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter

Hourly Weather History & Observations

Time (PST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
6:47 AM 44.6 °F 43.1 °F 41.0 °F 87% 30.20 in 30.0 mi Variable 3.5 mph - N/A   Clear
7:47 AM 48.2 °F - 42.8 °F 82% 30.21 in 30.0 mi Variable 3.5 mph - N/A   Clear
8:47 AM 57.2 °F - 46.4 °F 67% 30.22 in 30.0 mi Variable 3.5 mph - N/A   Clear
9:47 AM 60.8 °F - 42.8 °F 52% 30.23 in 30.0 mi SSE 3.5 mph - N/A   Clear
10:47 AM 66.2 °F - 42.8 °F 43% 30.22 in 30.0 mi Variable 3.5 mph - N/A   Clear
11:47 AM 68.0 °F - 44.6 °F 43% 30.20 in 30.0 mi Variable 6.9 mph - N/A   Clear
12:47 PM 68.0 °F - 42.8 °F 40% 30.17 in 30.0 mi WNW 5.8 mph - N/A   Clear
1:47 PM 69.8 °F - 42.8 °F 38% 30.16 in 30.0 mi NNW 6.9 mph - N/A   Clear
2:47 PM 69.8 °F - 46.4 °F 43% 30.14 in 30.0 mi NW 5.8 mph - N/A   Clear
3:47 PM 64.4 °F - 50.0 °F 59% 30.13 in 30.0 mi NNW 8.1 mph - N/A   Clear
5:47 PM 57.2 °F - 48.2 °F 72% 30.12 in 20.0 mi NW 6.9 mph - N/A   Partly Cloudy
6:47 PM 53.6 °F - 46.4 °F 77% 30.13 in 20.0 mi Calm Calm - N/A   Clear
7:55 PM 50.0 °F - 46.4 °F 87% 30.13 in 20.0 mi Variable 5.8 mph - N/A   Clear
8:47 PM 46.4 °F 43.5 °F 44.6 °F 93% 30.13 in 20.0 mi WSW 5.8 mph - N/A   Clear