Weather History for Livermore, CA

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Monday, January 21, 2013

  Actual Average Record
Temperature  
Mean Temperature 45 °F 47 °F  
Max Temperature 60 °F 56 °F 70 °F (1976)
Min Temperature 30 °F 38 °F 21 °F (1961)
Degree Days  
Heating Degree Days 20 18  
Month to date heating degree days 467 393  
Since 1 July heating degree days 1338 1424  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 34 °F    
Average Humidity 69    
Maximum Humidity 92    
Minimum Humidity 46    
Precipitation  
Precipitation 0.00 in 0.06 in 1.91 in (1943)
Month to date precipitation 0.33 2.27  
Year to date precipitation 0.33 2.27  
Since 1 July precipitation 8.62 8.08  
Sea Level Pressure  
Sea Level Pressure 30.15 in    
Wind  
Wind Speed 4 mph (ENE)    
Max Wind Speed 16 mph    
Max Gust Speed 21 mph    
Visibility 9 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Astronomy

Jan. 21, 2013 Rise Set
Actual Time 7:18 AM PST 5:19 PM PST
Civil Twilight 6:50 AM PST 5:47 PM PST
Nautical Twilight 6:18 AM PST 6:19 PM PST
Astronomical Twilight 5:47 AM PST 6:50 PM PST
Moon 1:03 PM PST (1/21) 2:51 AM PST (1/21)
Length of Visible Light 10h 57m
Length of Day
10h 00m
Waxing Gibbous, 76% of the Moon is Illuminated
Jan 21
Waxing Gibbous
Jan 26
Full
Feb 3
Last Quarter
Feb 9
New
Feb 17
First Quarter

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 35.1 °F - 28.0 °F 76% 30.17 in 10.0 mi Calm Calm - N/A   Clear
1:53 AM 33.1 °F - 28.0 °F 82% 30.17 in 10.0 mi Calm Calm - N/A   Clear
2:53 AM 32.0 °F - 28.0 °F 85% 30.16 in 10.0 mi Calm Calm - N/A   Clear
3:53 AM 32.0 °F - 27.0 °F 82% 30.15 in 10.0 mi Calm Calm - N/A   Clear
4:53 AM 32.0 °F - 27.0 °F 82% 30.15 in 10.0 mi Calm Calm - N/A   Clear
5:53 AM 30.9 °F - 27.0 °F 85% 30.14 in 10.0 mi Calm Calm - N/A   Clear
6:53 AM 30.9 °F - 28.0 °F 89% 30.15 in 10.0 mi Calm Calm - N/A   Clear
7:53 AM 32.0 °F - 28.0 °F 85% 30.17 in 10.0 mi Calm Calm - N/A   Clear
8:53 AM 37.0 °F - 33.1 °F 86% 30.18 in 10.0 mi Calm Calm - N/A   Clear
9:53 AM 45.0 °F - 36.0 °F 71% 30.19 in 10.0 mi Calm Calm - N/A   Clear
10:53 AM 51.1 °F - 37.9 °F 61% 30.20 in 10.0 mi Calm Calm - N/A   Clear
11:53 AM 59.0 °F - 39.0 °F 48% 30.16 in 10.0 mi ENE 10.4 mph - N/A   Clear
12:53 PM 60.1 °F - 39.0 °F 46% 30.14 in 10.0 mi ENE 11.5 mph - N/A   Clear
1:53 PM 59.0 °F - 39.0 °F 48% 30.14 in 8.0 mi ENE 12.7 mph - N/A   Clear
2:53 PM 57.0 °F - 41.0 °F 55% 30.13 in 7.0 mi ENE 15.0 mph - N/A   Clear
3:53 PM 57.0 °F - 39.9 °F 53% 30.12 in 7.0 mi ENE 13.8 mph - N/A   Clear
4:53 PM 55.0 °F - 39.0 °F 55% 30.11 in 7.0 mi NE 11.5 mph - N/A   Clear
5:53 PM 51.1 °F - 37.9 °F 61% 30.11 in 9.0 mi ENE 6.9 mph - N/A   Clear
6:53 PM 46.9 °F - 37.0 °F 68% 30.12 in 10.0 mi East 5.8 mph - N/A   Clear
7:53 PM 45.0 °F - 37.9 °F 76% 30.12 in 7.0 mi Calm Calm - N/A   Clear
8:53 PM 43.0 °F 41.3 °F 37.0 °F 80% 30.13 in 7.0 mi East 3.5 mph - N/A   Clear
9:53 PM 39.9 °F - 35.1 °F 83% 30.15 in 6.0 mi Calm Calm - N/A   Haze
10:53 PM 39.0 °F - 35.1 °F 86% 30.15 in 6.0 mi Calm Calm - N/A   Clear
11:53 PM 37.9 °F - 35.1 °F 89% 30.14 in 5.0 mi Calm Calm - N/A   Clear