Weather History for Oakland, CA

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Wednesday, December 15, 2010

  Actual Average Record
Temperature  
Mean Temperature 48 °F 49 °F  
Max Temperature 55 °F 56 °F 70 °F (1998)
Min Temperature 41 °F 41 °F 33 °F (1975)
Degree Days  
Heating Degree Days 17 16  
Month to date heating degree days 171 231  
Since 1 July heating degree days 669 906  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 256 138  
Moisture  
Dew Point 44 °F    
Average Humidity 83    
Maximum Humidity 100    
Minimum Humidity 66    
Precipitation  
Precipitation 0.01 in 0.13 in 1.18 in (1957)
Month to date precipitation 1.82 1.58  
Year to date precipitation 20.51 18.73  
Since 1 July precipitation 5.42 5.51  
Sea Level Pressure  
Sea Level Pressure 30.00 in    
Wind  
Wind Speed 4 mph (North)    
Max Wind Speed 12 mph    
Max Gust Speed 13 mph    
Visibility 9 miles    
Events Fog    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 15, 2010 Rise Set
Actual Time 7:17 AM PST 4:51 PM PST
Civil Twilight 6:47 AM PST 5:20 PM PST
Nautical Twilight 6:14 AM PST 5:53 PM PST
Astronomical Twilight 5:42 AM PST 6:25 PM PST
Moon 12:55 PM PST (12/15) 1:44 AM PST (12/15)
Length of Visible Light 10h 33m
Length of Day
9h 34m
Waxing Gibbous, 71% of the Moon is Illuminated
Dec 15
Waxing Gibbous
Dec 21
Full
Dec 27
Last Quarter
Jan 4
New
Jan 12
First Quarter

Hourly Weather History & Observations

Time (PST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:41 AM 51.8 °F - 48.2 °F 88% 30.00 in 9.0 mi NE 4.6 mph - N/A   Mostly Cloudy
12:53 AM 50.0 °F - 48.0 °F 93% 30.01 in 8.0 mi Calm Calm - N/A   Overcast
1:53 AM 46.9 °F - 45.0 °F 93% 29.99 in 7.0 mi ENE 3.5 mph - N/A   Mostly Cloudy
2:41 AM 48.2 °F - 46.4 °F 93% 30.00 in 7.0 mi North 3.5 mph - N/A   Mostly Cloudy
2:53 AM 48.0 °F - 46.9 °F 96% 29.99 in 7.0 mi NNE 3.5 mph - N/A   Overcast
3:07 AM 48.2 °F - 46.4 °F 93% 29.99 in 7.0 mi Calm Calm - N/A   Mostly Cloudy
3:53 AM 46.9 °F - 45.0 °F 93% 29.98 in 7.0 mi Calm Calm - N/A   Mostly Cloudy
4:00 AM 46.4 °F - 46.4 °F 100% 29.98 in 7.0 mi Calm Calm - N/A   Scattered Clouds
4:53 AM 46.9 °F - 45.0 °F 93% 29.99 in 7.0 mi ENE 3.5 mph - N/A   Mostly Cloudy
5:38 AM 46.4 °F - 44.6 °F 93% 29.99 in 7.0 mi Calm Calm - N/A   Scattered Clouds
5:53 AM 46.9 °F - 46.0 °F 97% 30.00 in 7.0 mi Calm Calm - N/A   Scattered Clouds
6:53 AM 46.9 °F - 46.0 °F 97% 30.01 in 10.0 mi Calm Calm - N/A   Scattered Clouds
7:53 AM 46.9 °F - 46.0 °F 97% 30.02 in 10.0 mi NNW 3.5 mph - N/A Fog Mostly Cloudy
8:53 AM 48.0 °F - 46.0 °F 93% 30.04 in 10.0 mi NNW 3.5 mph - N/A Fog Mostly Cloudy
9:53 AM 50.0 °F - 46.9 °F 89% 30.05 in 10.0 mi NNE 3.5 mph - N/A   Mostly Cloudy
10:53 AM 53.1 °F - 46.0 °F 77% 30.04 in 10.0 mi NNE 3.5 mph - N/A   Scattered Clouds
11:53 AM 53.1 °F - 45.0 °F 74% 30.01 in 10.0 mi WNW 8.1 mph - N/A   Scattered Clouds
12:53 PM 54.0 °F - 46.0 °F 75% 29.99 in 10.0 mi WNW 5.8 mph - N/A   Scattered Clouds
1:53 PM 54.0 °F - 43.0 °F 66% 29.99 in 10.0 mi NW 8.1 mph - N/A   Scattered Clouds
2:53 PM 54.0 °F - 43.0 °F 66% 29.99 in 10.0 mi WNW 9.2 mph - N/A   Mostly Cloudy
3:53 PM 54.0 °F - 42.1 °F 64% 29.99 in 10.0 mi WNW 6.9 mph - N/A   Mostly Cloudy
4:53 PM 52.0 °F - 41.0 °F 66% 29.97 in 10.0 mi NW 5.8 mph - N/A   Mostly Cloudy
5:53 PM 50.0 °F - 39.9 °F 68% 29.98 in 10.0 mi NNW 4.6 mph - N/A   Scattered Clouds
6:53 PM 48.9 °F - 39.9 °F 71% 29.98 in 10.0 mi Calm Calm - N/A   Partly Cloudy
7:53 PM 45.0 °F - 39.0 °F 80% 29.99 in 10.0 mi Calm Calm - N/A   Partly Cloudy
8:53 PM 42.8 °F 41.1 °F 39.2 °F 87% 30.00 in 10.0 mi NNE 3.5 mph - N/A   Clear
9:53 PM 42.8 °F 41.1 °F 39.2 °F 87% 30.01 in 10.0 mi ENE 3.5 mph - N/A   Partly Cloudy
10:53 PM 42.1 °F 40.2 °F 37.9 °F 85% 30.01 in 10.0 mi ENE 3.5 mph - N/A   Clear
11:53 PM 41.0 °F 39.0 °F 37.9 °F 89% 30.00 in 10.0 mi ENE 3.5 mph - N/A   Partly Cloudy