Weather History for Los Angeles, CA

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Tuesday, December 20, 2011

  Actual Average Record
Temperature  
Mean Temperature 56 °F 56 °F  
Max Temperature 64 °F 64 °F 82 °F (1960)
Min Temperature 48 °F 48 °F 38 °F (1967)
Degree Days  
Heating Degree Days 9 9  
Month to date heating degree days 204 165  
Since 1 July heating degree days 443 347  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 401 550  
Growing Degree Days 6 (Base 50)    
Moisture  
Dew Point 44 °F    
Average Humidity 63    
Maximum Humidity 86    
Minimum Humidity 40    
Precipitation  
Precipitation 0.00 in 0.07 in 1.17 in (2010)
Month to date precipitation 0.67 1.17  
Year to date precipitation 9.87 11.94  
Since 1 July precipitation 3.00 3.13  
Sea Level Pressure  
Sea Level Pressure 30.00 in    
Wind  
Wind Speed 2 mph (WSW)    
Max Wind Speed 10 mph    
Max Gust Speed -    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Dec. 20, 2011 Rise Set
Actual Time 6:54 AM PST 4:47 PM PST
Civil Twilight 6:26 AM PST 5:15 PM PST
Nautical Twilight 5:55 AM PST 5:47 PM PST
Astronomical Twilight 5:24 AM PST 6:17 PM PST
Moon 2:27 AM PST (12/20) 1:22 PM PST (12/20)
Length of Visible Light 10h 49m
Length of Day
9h 53m
Waning Crescent, 20% of the Moon is Illuminated
Dec 20
Waning Crescent
Dec 24
New
Dec 31
First Quarter
Jan 8
Full
Jan 16
Last Quarter

Hourly Weather History & Observations

Time (PST) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 55.0 °F 46.9 °F 74% 30.04 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:53 AM 54.0 °F 46.0 °F 75% 30.03 in 10.0 mi Calm Calm - N/A   Scattered Clouds
2:53 AM 51.1 °F 45.0 °F 80% 30.02 in 10.0 mi Calm Calm - N/A   Scattered Clouds
3:53 AM 50.0 °F 46.0 °F 86% 30.01 in 10.0 mi Calm Calm - N/A   Scattered Clouds
4:53 AM 51.1 °F 44.1 °F 77% 30.01 in 10.0 mi NNE 3.5 mph - N/A   Scattered Clouds
5:53 AM 48.9 °F 43.0 °F 80% 30.02 in 10.0 mi Calm Calm - N/A   Scattered Clouds
6:53 AM 48.9 °F 43.0 °F 80% 30.04 in 10.0 mi Calm Calm - N/A   Scattered Clouds
7:53 AM 52.0 °F 43.0 °F 71% 30.05 in 10.0 mi Calm Calm - N/A   Scattered Clouds
8:53 AM 53.1 °F 44.1 °F 71% 30.05 in 10.0 mi ESE 4.6 mph - N/A   Partly Cloudy
9:53 AM 57.0 °F 44.1 °F 62% 30.05 in 10.0 mi Calm Calm - N/A   Partly Cloudy
10:53 AM 60.1 °F 45.0 °F 57% 30.03 in 10.0 mi WSW 5.8 mph - N/A   Scattered Clouds
11:53 AM 62.1 °F 39.9 °F 44% 29.99 in 10.0 mi West 5.8 mph - N/A   Scattered Clouds
12:53 PM 62.1 °F 43.0 °F 50% 29.97 in 10.0 mi West 6.9 mph - N/A   Scattered Clouds
1:53 PM 62.1 °F 43.0 °F 50% 29.95 in 10.0 mi WSW 6.9 mph - N/A   Scattered Clouds
2:53 PM 64.0 °F 39.0 °F 40% 29.94 in 10.0 mi South 5.8 mph - N/A   Scattered Clouds
3:53 PM 63.0 °F 46.9 °F 56% 29.95 in 10.0 mi Calm Calm - N/A   Partly Cloudy
4:53 PM 62.1 °F 48.0 °F 60% 29.95 in 10.0 mi Calm Calm - N/A   Partly Cloudy
5:53 PM 59.0 °F 48.9 °F 69% 29.96 in 10.0 mi SW 3.5 mph - N/A   Clear
6:53 PM 57.9 °F 48.0 °F 70% 29.97 in 10.0 mi Calm Calm - N/A   Clear
7:53 PM 57.9 °F 48.0 °F 70% 29.98 in 10.0 mi Calm Calm - N/A   Clear
8:53 PM 59.0 °F 37.9 °F 46% 29.99 in 10.0 mi North 4.6 mph - N/A   Clear
9:53 PM 54.0 °F 44.1 °F 69% 29.99 in 10.0 mi East 3.5 mph - N/A   Clear
10:53 PM 55.0 °F 43.0 °F 64% 29.99 in 10.0 mi Calm Calm - N/A   Clear
11:53 PM 55.9 °F 39.9 °F 55% 29.99 in 10.0 mi Calm Calm - N/A   Clear