Weather History for Palo Alto, CA

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Thursday, January 19, 2012

  Actual Average Record
Temperature  
Mean Temperature 43 °F -  
Max Temperature 53 °F 58 °F 75 °F (2009)
Min Temperature 33 °F 39 °F 30 °F (1961)
Degree Days  
Heating Degree Days 22    
Moisture  
Dew Point 40 °F    
Average Humidity 77    
Maximum Humidity 93    
Minimum Humidity 62    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.14 in    
Wind  
Wind Speed 8 mph (SE)    
Max Wind Speed 13 mph    
Max Gust Speed -    
Visibility 14 miles    
Events Rain    
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. 19, 2012 Rise Set
Actual Time 7:20 AM PST 5:18 PM PST
Civil Twilight 6:52 AM PST 5:46 PM PST
Nautical Twilight 6:20 AM PST 6:18 PM PST
Astronomical Twilight 5:49 AM PST 6:49 PM PST
Moon 4:01 AM PST (1/19) 1:56 PM PST (1/19)
Length of Visible Light 10h 54m
Length of Day
9h 57m
Waning Crescent, 15% of the Moon is Illuminated
Jan 19
Waning Crescent
Jan 22
New
Jan 30
First Quarter
Feb 7
Full
Feb 14
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 33.8 °F 30.8 °F 32.0 °F 93% 30.21 in 20.0 mi Variable 3.5 mph - N/A   Mostly Cloudy
7:47 AM 35.6 °F 32.8 °F 33.8 °F 93% 30.21 in 20.0 mi Variable 3.5 mph - N/A   Mostly Cloudy
8:47 AM 42.8 °F 37.0 °F 37.4 °F 81% 30.21 in 30.0 mi East 10.4 mph - N/A   Overcast
9:47 AM 44.6 °F - 35.6 °F 71% - - North - - N/A   Overcast
11:47 AM 48.2 °F - 37.4 °F 66% 30.20 in 15.0 mi SSE 9.2 mph - N/A   Overcast
12:47 PM 50.0 °F - 37.4 °F 62% 30.17 in 10.0 mi South 9.2 mph - N/A   Overcast
1:47 PM 51.8 °F - 41.0 °F 67% 30.14 in 20.0 mi SE 9.2 mph - N/A   Overcast
2:47 PM 51.8 °F - 39.2 °F 62% 30.12 in 25.0 mi SE 9.2 mph - N/A   Overcast
3:47 PM 51.8 °F - 42.8 °F 71% 30.11 in 25.0 mi SSE 10.4 mph - N/A   Overcast
4:47 PM 50.0 °F - 44.6 °F 82% 30.09 in 8.0 mi SE 9.2 mph - N/A Rain Light Rain
5:47 PM 50.0 °F - 44.6 °F 82% 30.09 in 8.0 mi SE 11.5 mph - N/A Rain Light Rain
6:47 PM 50.0 °F - 46.4 °F 87% 30.09 in 8.0 mi SSE 10.4 mph - N/A Rain Light Rain
7:47 PM 53.6 °F - 46.4 °F 77% 30.09 in 15.0 mi SSE 10.4 mph - N/A   Overcast
8:47 PM 50.0 °F - 46.4 °F 87% 30.07 in 15.0 mi SSE 12.7 mph - N/A   Overcast