Weather History for Oakland, CA

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Friday, December 21, 2012

  Actual Average Record
Temperature  
Mean Temperature 55 °F 48 °F  
Max Temperature 58 °F 56 °F 71 °F (1999)
Min Temperature 51 °F 41 °F 30 °F (1949)
Degree Days  
Heating Degree Days 10 17  
Month to date heating degree days 247 330  
Since 1 July heating degree days 868 1005  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 61 138  
Growing Degree Days 5 (Base 50)    
Moisture  
Dew Point 48 °F    
Average Humidity 74    
Maximum Humidity 93    
Minimum Humidity 55    
Precipitation  
Precipitation 0.11 in 0.14 in 0.79 in (1977)
Month to date precipitation 2.72 2.40  
Year to date precipitation 19.83 19.55  
Since 1 July precipitation 7.89 6.33  
Sea Level Pressure  
Sea Level Pressure 29.94 in    
Wind  
Wind Speed 18 mph (SSE)    
Max Wind Speed 29 mph    
Max Gust Speed 39 mph    
Visibility 9 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 21, 2012 Rise Set
Actual Time 7:20 AM PST 4:54 PM PST
Civil Twilight 6:51 AM PST 5:23 PM PST
Nautical Twilight 6:18 AM PST 5:56 PM PST
Astronomical Twilight 5:46 AM PST 6:28 PM PST
Moon 12:39 PM PST (12/21) 1:17 AM PST (12/21)
Length of Visible Light 10h 32m
Length of Day
9h 33m
Waxing Gibbous, 66% of the Moon is Illuminated
Dec 21
Waxing Gibbous
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
First 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 54.0 °F 43.0 °F 66% 30.01 in 10.0 mi SSE 17.3 mph - N/A   Scattered Clouds
1:53 AM 55.0 °F 44.1 °F 67% 30.00 in 10.0 mi SSE 21.9 mph 27.6 mph N/A   Overcast
2:53 AM 55.0 °F 42.1 °F 62% 29.99 in 10.0 mi SSE 24.2 mph - N/A   Mostly Cloudy
3:53 AM 55.9 °F 41.0 °F 57% 29.96 in 10.0 mi SSE 24.2 mph 33.4 mph N/A   Overcast
4:53 AM 54.0 °F 39.0 °F 57% 29.95 in 10.0 mi SSE 21.9 mph 29.9 mph N/A   Mostly Cloudy
5:53 AM 54.0 °F 41.0 °F 62% 29.96 in 10.0 mi SSE 16.1 mph - N/A   Overcast
6:53 AM 55.0 °F 39.0 °F 55% 29.97 in 10.0 mi SE 18.4 mph - N/A   Overcast
7:53 AM 54.0 °F 39.0 °F 57% 29.93 in 10.0 mi ESE 17.3 mph 24.2 mph N/A   Overcast
8:53 AM 55.9 °F 41.0 °F 57% 29.96 in 10.0 mi SSE 26.5 mph 36.8 mph N/A   Overcast
9:53 AM 55.9 °F 41.0 °F 57% 29.96 in 10.0 mi SSE 24.2 mph 32.2 mph 0.00 in Rain Light Rain
10:53 AM 53.1 °F 43.0 °F 69% 29.96 in 10.0 mi SE 17.3 mph - 0.02 in   Overcast
11:40 AM 53.6 °F 44.6 °F 72% 29.96 in 6.0 mi SSE 19.6 mph - 0.00 in Rain Light Rain
11:53 AM 53.1 °F 45.0 °F 74% 29.96 in 9.0 mi SE 17.3 mph - 0.01 in Rain Light Rain
12:53 PM 55.0 °F 46.0 °F 72% 29.93 in 10.0 mi SE 16.1 mph - 0.00 in   Overcast
1:53 PM 55.9 °F 48.9 °F 77% 29.92 in 10.0 mi South 17.3 mph - 0.00 in Rain Light Rain
2:16 PM 57.2 °F 48.2 °F 72% 29.92 in 10.0 mi South 18.4 mph 26.5 mph 0.00 in   Overcast
2:29 PM 55.4 °F 48.2 °F 77% 29.92 in 10.0 mi SSE 17.3 mph 26.5 mph 0.00 in   Overcast
2:53 PM 57.0 °F 50.0 °F 77% 29.91 in 10.0 mi South 20.7 mph - 0.00 in   Overcast
3:53 PM 57.0 °F 50.0 °F 77% 29.92 in 10.0 mi SSE 19.6 mph 31.1 mph 0.00 in Rain Light Rain
4:53 PM 55.0 °F 52.0 °F 89% 29.93 in 5.0 mi South 15.0 mph - 0.00 in Rain Light Rain
5:07 PM 55.4 °F 51.8 °F 88% 29.93 in 9.0 mi South 15.0 mph - 0.00 in   Overcast
5:12 PM 55.4 °F 51.8 °F 88% 29.94 in 10.0 mi South 15.0 mph - 0.00 in Rain Light Rain
5:31 PM 55.4 °F 51.8 °F 88% 29.93 in 10.0 mi South 13.8 mph - 0.01 in   Mostly Cloudy
5:53 PM 55.0 °F 52.0 °F 89% 29.92 in 10.0 mi SSE 15.0 mph - 0.01 in   Mostly Cloudy
6:53 PM 54.0 °F 52.0 °F 93% 29.93 in 10.0 mi SE 13.8 mph - N/A   Mostly Cloudy
7:39 PM 55.4 °F 53.6 °F 94% 29.93 in 10.0 mi SSE 17.3 mph - 0.00 in Rain Light Rain
7:53 PM 54.0 °F 53.1 °F 97% 29.92 in 5.0 mi SSE 13.8 mph - 0.00 in Rain Light Rain
7:59 PM 53.6 °F 53.6 °F 100% 29.93 in 5.0 mi SSE 13.8 mph - 0.00 in Rain Light Rain
8:01 PM 53.6 °F 53.6 °F 100% 29.92 in 2.5 mi SSE 12.7 mph - 0.00 in Rain Light Rain
8:06 PM 53.6 °F 53.6 °F 100% 29.92 in 7.0 mi SSE 13.8 mph - 0.01 in Rain Light Rain
8:36 PM 55.4 °F 53.6 °F 94% 29.93 in 7.0 mi SSE 10.4 mph - 0.03 in Rain Light Rain
8:53 PM 55.0 °F 51.1 °F 86% 29.93 in 9.0 mi South 11.5 mph - 0.03 in Rain Light Rain
9:06 PM 55.4 °F 51.8 °F 88% 29.93 in 9.0 mi South 12.7 mph - 0.00 in Rain Light Rain
9:15 PM 55.4 °F 51.8 °F 88% 29.93 in 9.0 mi SSE 15.0 mph - 0.00 in Rain Light Rain
9:21 PM 55.4 °F 51.8 °F 88% 29.93 in 9.0 mi SSE 15.0 mph - 0.00 in Rain Light Rain
9:44 PM 53.6 °F 48.2 °F 82% 29.92 in 9.0 mi SSE 13.8 mph - 0.01 in Rain Light Rain
9:53 PM 54.0 °F 50.0 °F 86% 29.94 in 5.0 mi SSE 16.1 mph - 0.02 in Rain Rain
10:12 PM 53.6 °F 50.0 °F 88% 29.92 in 10.0 mi SSE 16.1 mph - N/A Rain Light Rain
10:28 PM 53.6 °F 50.0 °F 88% 29.91 in 10.0 mi SSE 18.4 mph - N/A Rain Light Rain
10:53 PM 54.0 °F 48.0 °F 80% 29.91 in 10.0 mi SE 18.4 mph - N/A   Mostly Cloudy
11:53 PM 54.0 °F 46.0 °F 75% 29.90 in 10.0 mi SE 17.3 mph - N/A   Mostly Cloudy