Weather History for Los Angeles, CA

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Saturday, December 31, 2011

  Actual Average Record
Temperature  
Mean Temperature 53 °F 56 °F  
Max Temperature 62 °F 64 °F 79 °F (1963)
Min Temperature 44 °F 48 °F 35 °F (1947)
Degree Days  
Heating Degree Days 12 9  
Month to date heating degree days 302 264  
Since 1 July heating degree days 541 442  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 1  
Year to date cooling degree days 401 551  
Growing Degree Days 3 (Base 50)    
Moisture  
Dew Point 48 °F    
Average Humidity 78    
Maximum Humidity 100    
Minimum Humidity 56    
Precipitation  
Precipitation 0.00 in 0.09 in 0.75 in (2004)
Month to date precipitation 0.67 2.05  
Year to date precipitation 9.87 12.82  
Since 1 July precipitation 3.00 4.01  
Sea Level Pressure  
Sea Level Pressure 30.03 in    
Wind  
Wind Speed 3 mph (WSW)    
Max Wind Speed 12 mph    
Max Gust Speed 15 mph    
Visibility 2 miles    
Events Fog    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 31, 2011 Rise Set
Actual Time 6:58 AM PST 4:54 PM PST
Civil Twilight 6:30 AM PST 5:22 PM PST
Nautical Twilight 5:59 AM PST 5:53 PM PST
Astronomical Twilight 5:29 AM PST 6:23 PM PST
Moon 11:06 AM PST (12/31) No Moon Set
Length of Visible Light 10h 51m
Length of Day
9h 56m
Waxing Crescent, 46% of the Moon is Illuminated
Dec 31
Waxing Crescent
Dec 31
First Quarter
Jan 8
Full
Jan 16
Last Quarter
Jan 22
New

Hourly Weather History & Observations

Time (PST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:34 AM 48.2 °F - 48.2 °F 100% 30.02 in 2.5 mi Calm Calm - N/A   Partly Cloudy
12:53 AM 48.9 °F - 46.9 °F 93% 30.02 in 2.5 mi SE 3.5 mph - N/A   Partly Cloudy
1:53 AM 46.9 °F - 45.0 °F 93% 30.01 in 2.5 mi Calm Calm - N/A   Partly Cloudy
2:14 AM 46.4 °F 45.2 °F 44.6 °F 93% 30.01 in 0.2 mi SE 3.5 mph - N/A Fog Fog
2:22 AM 46.4 °F - 44.6 °F 93% 30.01 in 0.2 mi Calm Calm - N/A Fog Fog
2:28 AM 46.4 °F - 46.4 °F 100% 30.01 in 0.2 mi Calm Calm - N/A Fog Fog
2:53 AM 46.9 °F - 46.9 °F 100% 30.01 in 0.2 mi Calm Calm - N/A Fog Fog
3:53 AM 46.9 °F - 46.9 °F 100% 30.01 in 0.2 mi Calm Calm - N/A Fog Fog
4:53 AM 46.9 °F - 46.9 °F 100% 30.01 in 0.2 mi Calm Calm - N/A Fog Fog
5:49 AM 46.9 °F - 46.0 °F 97% 30.02 in 0.8 mi Calm Calm - N/A   Mist
5:51 AM 46.4 °F - 46.4 °F 100% 30.02 in 0.2 mi Calm Calm - N/A Fog Fog
5:59 AM 46.4 °F - 46.4 °F 100% 30.02 in 2.0 mi Calm Calm - N/A   Scattered Clouds
6:53 AM 44.1 °F - 44.1 °F 100% 30.03 in 2.0 mi Calm Calm - N/A   Scattered Clouds
7:12 AM 44.6 °F - 42.8 °F 93% 30.04 in 0.5 mi Calm Calm - N/A Fog Fog
7:21 AM 44.6 °F - 44.6 °F 100% 30.04 in 0.2 mi Calm Calm - N/A Fog Fog
7:27 AM 44.6 °F - 44.6 °F 100% 30.04 in 2.0 mi Calm Calm - N/A   Scattered Clouds
7:53 AM 46.0 °F 44.8 °F 46.0 °F 100% 30.05 in 3.0 mi ESE 3.5 mph - N/A   Scattered Clouds
8:53 AM 54.0 °F - 51.1 °F 90% 30.05 in 4.0 mi Calm Calm - N/A   Scattered Clouds
9:53 AM 62.1 °F - 46.0 °F 56% 30.06 in 5.0 mi South 4.6 mph - N/A   Haze
10:53 AM 61.0 °F - 48.9 °F 64% 30.04 in 3.0 mi West 3.5 mph - N/A   Haze
11:53 AM 60.1 °F - 50.0 °F 69% 30.02 in 4.0 mi West 8.1 mph - N/A   Haze
12:37 PM 57.2 °F - 50.0 °F 77% 30.01 in 2.5 mi West 10.4 mph - N/A   Haze
12:53 PM 57.9 °F - 50.0 °F 75% 30.00 in 3.0 mi West 9.2 mph - N/A   Haze
12:58 PM 59.0 °F - 50.0 °F 72% 30.00 in 2.5 mi West 9.2 mph - N/A   Haze
1:53 PM 57.0 °F - 50.0 °F 77% 30.00 in 2.0 mi West 8.1 mph - N/A Fog Patches of Fog
2:53 PM 55.9 °F - 50.0 °F 80% 30.01 in 2.0 mi West 9.2 mph - N/A Fog Patches of Fog
3:42 PM 55.4 °F - 50.0 °F 82% 30.02 in 1.2 mi West 10.4 mph - N/A Fog Patches of Fog
3:53 PM 55.0 °F - 51.1 °F 86% 30.02 in 1.2 mi West 10.4 mph - N/A Fog Patches of Fog
4:09 PM 53.6 °F - 50.0 °F 88% 30.02 in 0.2 mi WNW 9.2 mph - N/A Fog Fog
4:53 PM 53.1 °F - 50.0 °F 89% 30.03 in 0.2 mi WNW 10.4 mph - N/A Fog Fog
5:53 PM 52.0 °F - 50.0 °F 93% 30.04 in 0.2 mi West 5.8 mph - N/A Fog Fog
6:34 PM 51.8 °F - 51.8 °F 100% 30.04 in 0.2 mi Calm Calm - N/A Fog Fog
6:53 PM 52.0 °F - 51.1 °F 97% 30.05 in 0.5 mi Calm Calm - N/A Fog Fog
7:26 PM 53.6 °F - 50.0 °F 88% 30.05 in 1.0 mi Calm Calm - N/A Fog Patches of Fog
7:53 PM 52.0 °F - 48.9 °F 89% 30.06 in 1.0 mi Calm Calm - N/A Fog Patches of Fog
8:25 PM 53.6 °F - 50.0 °F 88% 30.07 in 2.0 mi Calm Calm - N/A Fog Patches of Fog
8:51 PM 53.6 °F - 50.0 °F 88% 30.07 in 3.0 mi SE 4.6 mph - N/A   Clear
8:53 PM 53.1 °F - 50.0 °F 89% 30.07 in 3.0 mi SE 5.8 mph - N/A   Clear
9:53 PM 53.1 °F - 50.0 °F 89% 30.09 in 3.0 mi Calm Calm - N/A   Clear
10:53 PM 53.1 °F - 48.9 °F 86% 30.09 in 3.0 mi Calm Calm - N/A   Partly Cloudy
11:53 PM 52.0 °F - 48.0 °F 86% 30.09 in 3.0 mi Calm Calm - N/A   Partly Cloudy