Weather History for Oakland, CA

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Monday, December 19, 2011

  Actual Average Record
Temperature  
Mean Temperature 45 °F 48 °F  
Max Temperature 55 °F 56 °F 75 °F (1999)
Min Temperature 35 °F 41 °F 34 °F (1963)
Degree Days  
Heating Degree Days 20 17  
Month to date heating degree days 290 296  
Since 1 July heating degree days 907 971  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 152 138  
Moisture  
Dew Point 42 °F    
Average Humidity 76    
Maximum Humidity 100    
Minimum Humidity 51    
Precipitation  
Precipitation 0.00 in 0.14 in 1.40 in (2010)
Month to date precipitation 0.10 2.12  
Year to date precipitation 15.87 19.27  
Since 1 July precipitation 3.06 6.05  
Sea Level Pressure  
Sea Level Pressure 30.09 in    
Wind  
Wind Speed 3 mph (NW)    
Max Wind Speed 10 mph    
Max Gust Speed 18 mph    
Visibility 9 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 19, 2011 Rise Set
Actual Time 7:19 AM PST 4:52 PM PST
Civil Twilight 6:49 AM PST 5:22 PM PST
Nautical Twilight 6:17 AM PST 5:55 PM PST
Astronomical Twilight 5:45 AM PST 6:26 PM PST
Moon 1:39 AM PST (12/19) 12:51 PM PST (12/19)
Length of Visible Light 10h 32m
Length of Day
9h 33m
Waning Crescent, 30% of the Moon is Illuminated
Dec 19
Waning Crescent
Dec 24
New
Dec 31
First Quarter
Jan 8
Full
Jan 16
Last 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 48.0 °F - 44.1 °F 86% 30.13 in 10.0 mi Calm Calm - N/A   Overcast
1:32 AM 48.2 °F - 44.6 °F 87% 30.11 in 10.0 mi East 3.5 mph - N/A   Overcast
1:53 AM 48.2 °F - 44.6 °F 87% 30.11 in 10.0 mi Calm Calm - N/A   Overcast
2:19 AM 48.2 °F - 44.6 °F 87% 30.11 in 10.0 mi East 5.8 mph - N/A   Overcast
2:53 AM 48.0 °F - 44.1 °F 86% 30.10 in 10.0 mi SE 3.5 mph - N/A   Overcast
3:53 AM 46.4 °F - 42.8 °F 87% 30.09 in 10.0 mi Calm Calm - N/A   Overcast
4:24 AM 46.4 °F - 42.8 °F 87% 30.08 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
4:53 AM 43.0 °F - 42.1 °F 97% 30.08 in 10.0 mi Calm Calm - N/A   Partly Cloudy
5:53 AM 44.1 °F 41.5 °F 42.1 °F 93% 30.10 in 10.0 mi NNW 4.6 mph - N/A   Partly Cloudy
6:19 AM 44.6 °F 41.4 °F 42.8 °F 93% 30.11 in 10.0 mi NNW 5.8 mph - N/A   Mostly Cloudy
6:53 AM 44.1 °F 41.5 °F 43.0 °F 96% 30.11 in 9.0 mi NNW 4.6 mph - N/A   Scattered Clouds
7:53 AM 43.0 °F - 42.1 °F 97% 30.12 in 3.0 mi Calm Calm - N/A   Scattered Clouds
8:20 AM 44.6 °F 43.1 °F 42.8 °F 93% 30.12 in 5.0 mi NW 3.5 mph - N/A   Scattered Clouds
8:53 AM 46.9 °F - 44.1 °F 90% 30.12 in 6.0 mi NNW 4.6 mph - N/A   Partly Cloudy
9:53 AM 50.0 °F - 44.6 °F 82% 30.12 in 8.0 mi NNW 6.9 mph - N/A   Partly Cloudy
10:53 AM 50.0 °F - 43.0 °F 77% 30.12 in 8.0 mi WNW 9.2 mph - N/A   Partly Cloudy
11:53 AM 51.1 °F - 42.1 °F 71% 30.09 in 10.0 mi West 6.9 mph - N/A   Clear
12:53 PM 52.0 °F - 42.1 °F 69% 30.06 in 10.0 mi WSW 6.9 mph - N/A   Partly Cloudy
1:53 PM 54.0 °F - 41.0 °F 62% 30.05 in 10.0 mi SW 5.8 mph - N/A   Partly Cloudy
2:53 PM 54.0 °F - 39.0 °F 57% 30.04 in 10.0 mi West 5.8 mph - N/A   Partly Cloudy
3:53 PM 55.0 °F - 37.9 °F 53% 30.04 in 10.0 mi Calm Calm - N/A   Partly Cloudy
4:53 PM 52.0 °F - 41.0 °F 66% 30.04 in 10.0 mi Calm Calm - N/A   Scattered Clouds
5:53 PM 48.2 °F - 44.6 °F 87% 30.06 in 10.0 mi NNW 4.6 mph - N/A   Scattered Clouds
6:53 PM 50.0 °F - 45.0 °F 83% 30.07 in 10.0 mi Calm Calm - N/A   Scattered Clouds
7:53 PM 46.0 °F 44.8 °F 44.1 °F 93% 30.08 in 10.0 mi NNW 3.5 mph - N/A   Scattered Clouds
8:53 PM 45.0 °F - 43.0 °F 93% 30.09 in 10.0 mi Calm Calm - N/A   Partly Cloudy
9:53 PM 39.0 °F - 39.0 °F 100% 30.10 in 10.0 mi Calm Calm - N/A   Partly Cloudy
10:53 PM 37.9 °F 35.5 °F 36.0 °F 93% 30.10 in 10.0 mi NE 3.5 mph - N/A   Partly Cloudy
11:53 PM 37.9 °F - 36.0 °F 93% 30.10 in 10.0 mi Calm Calm - N/A   Clear