Weather History for Livermore, CA

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Friday, February 15, 2013

  Actual Average Record
Temperature  
Mean Temperature 53 °F 50 °F  
Max Temperature 68 °F 61 °F 78 °F (1977)
Min Temperature 38 °F 41 °F 24 °F (1990)
Degree Days  
Heating Degree Days 12 14  
Month to date heating degree days 246 236  
Since 1 July heating degree days 1735 1834  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Growing Degree Days 4 (Base 50)    
Moisture  
Dew Point 41 °F    
Average Humidity 64    
Maximum Humidity 82    
Minimum Humidity 45    
Precipitation  
Precipitation 0.00 in 0.11 in 1.13 in (1982)
Month to date precipitation 0.05 1.46  
Year to date precipitation 0.76 4.47  
Since 1 July precipitation 9.05 10.28  
Sea Level Pressure  
Sea Level Pressure 30.24 in    
Wind  
Wind Speed 3 mph (ENE)    
Max Wind Speed 13 mph    
Max Gust Speed 16 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Feb. 15, 2013 Rise Set
Actual Time 6:56 AM PST 5:46 PM PST
Civil Twilight 6:29 AM PST 6:13 PM PST
Nautical Twilight 5:58 AM PST 6:44 PM PST
Astronomical Twilight 5:28 AM PST 7:14 PM PST
Moon 9:43 AM PST (2/15) 11:44 PM PST (2/15)
Length of Visible Light 11h 44m
Length of Day
10h 50m
Waxing Crescent, 31% of the Moon is Illuminated
Feb 15
Waxing Crescent
Feb 17
First Quarter
Feb 25
Full
Mar 4
Last Quarter
Mar 11
New

Hourly Weather History & Observations

Time (PST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 45.0 °F - 37.9 °F 76% 30.22 in 10.0 mi Calm Calm - N/A   Clear
1:53 AM 44.1 °F - 37.0 °F 76% 30.23 in 10.0 mi Calm Calm - N/A   Clear
2:53 AM 43.0 °F - 36.0 °F 76% 30.23 in 10.0 mi Calm Calm - N/A   Clear
3:53 AM 42.1 °F - 36.0 °F 79% 30.23 in 10.0 mi Calm Calm - N/A   Clear
4:53 AM 41.0 °F - 35.1 °F 79% 30.24 in 10.0 mi Calm Calm - N/A   Clear
5:53 AM 39.9 °F - 34.0 °F 79% 30.24 in 10.0 mi Calm Calm - N/A   Clear
6:53 AM 39.9 °F - 34.0 °F 79% 30.25 in 10.0 mi Calm Calm - N/A   Clear
7:53 AM 43.0 °F - 36.0 °F 76% 30.27 in 10.0 mi Calm Calm - N/A   Clear
8:53 AM 48.9 °F - 37.9 °F 66% 30.28 in 10.0 mi Calm Calm - N/A   Clear
9:53 AM 54.0 °F - 39.9 °F 59% 30.28 in 10.0 mi Calm Calm - N/A   Clear
10:53 AM 60.1 °F - 41.0 °F 49% 30.28 in 10.0 mi Calm Calm - N/A   Clear
11:53 AM 66.0 °F - 46.0 °F 48% 30.26 in 10.0 mi ENE 8.1 mph - N/A   Clear
12:53 PM 66.0 °F - 44.1 °F 45% 30.25 in 10.0 mi ENE 8.1 mph - N/A   Clear
1:53 PM 66.9 °F - 46.0 °F 47% 30.23 in 10.0 mi ENE 9.2 mph - N/A   Clear
2:53 PM 68.0 °F - 46.9 °F 47% 30.22 in 10.0 mi ENE 9.2 mph - N/A   Clear
3:53 PM 66.9 °F - 48.0 °F 51% 30.22 in 10.0 mi ENE 9.2 mph - N/A   Clear
4:53 PM 64.9 °F - 46.0 °F 50% 30.22 in 10.0 mi East 10.4 mph - N/A   Clear
5:53 PM 61.0 °F - 44.1 °F 54% 30.22 in 10.0 mi NE 6.9 mph - N/A   Clear
6:53 PM 55.0 °F - 44.1 °F 67% 30.23 in 10.0 mi East 5.8 mph - N/A   Clear
7:53 PM 54.0 °F - 44.1 °F 69% 30.24 in 10.0 mi Calm Calm - N/A   Clear
8:53 PM 51.1 °F - 43.0 °F 74% 30.25 in 10.0 mi Calm Calm - N/A   Clear
9:53 PM 46.9 °F - 41.0 °F 80% 30.25 in 10.0 mi Calm Calm - N/A   Clear
10:53 PM 46.0 °F - 39.9 °F 79% 30.26 in 10.0 mi Calm Calm - N/A   Clear
11:53 PM 43.0 °F 41.3 °F 39.0 °F 86% 30.25 in 10.0 mi East 3.5 mph - N/A   Clear