Weather History for San Diego, CA

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Saturday, December 15, 2012

  Actual Average Record
Temperature  
Mean Temperature 55 °F 56 °F  
Max Temperature 59 °F 64 °F 81 °F (1958)
Min Temperature 51 °F 48 °F 35 °F (1878)
Degree Days  
Heating Degree Days 10 9  
Month to date heating degree days 63 121  
Since 1 July heating degree days 157 266  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 899 720  
Growing Degree Days 5 (Base 50)    
Moisture  
Dew Point 44 °F    
Average Humidity 65    
Maximum Humidity 89    
Minimum Humidity 40    
Precipitation  
Precipitation 0.12 in 0.05 in 2.35 in (1938)
Month to date precipitation 1.77 0.66  
Year to date precipitation 6.21 9.47  
Since 1 July precipitation 2.75 2.44  
Snow  
Snow 0.00 in - - ()
Month to date snowfall 0.0  
Year to date snowfall 0.0  
Since 1 July snowfall 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.03 in    
Wind  
Wind Speed 9 mph (NNE)    
Max Wind Speed 14 mph    
Max Gust Speed 20 mph    
Visibility 9 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 15, 2012 Rise Set
Actual Time 6:43 AM PST 4:44 PM PST
Civil Twilight 6:16 AM PST 5:11 PM PST
Nautical Twilight 5:45 AM PST 5:42 PM PST
Astronomical Twilight 5:15 AM PST 6:12 PM PST
Moon 8:45 AM PST (12/15) 7:46 PM PST (12/15)
Length of Visible Light 10h 55m
Length of Day
10h 00m
Waxing Crescent, 9% of the Moon is Illuminated
Dec 15
Waxing Crescent
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New

Hourly Weather History & Observations

Time (PST) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:51 AM 51.1 °F 46.0 °F 83% 29.98 in 10.0 mi East 3.5 mph - 0.02 in Rain Light Rain
1:39 AM 51.8 °F 46.4 °F 82% 29.97 in 10.0 mi ENE 5.8 mph - 0.00 in Rain Light Rain
1:51 AM 52.0 °F 46.9 °F 83% 29.97 in 10.0 mi NE 5.8 mph - 0.00 in Rain Light Rain
2:51 AM 52.0 °F 46.9 °F 83% 29.94 in 10.0 mi East 6.9 mph - 0.00 in   Overcast
3:51 AM 52.0 °F 46.9 °F 83% 29.95 in 10.0 mi NE 6.9 mph - N/A   Overcast
4:02 AM 51.8 °F 46.4 °F 82% 29.95 in 10.0 mi NE 9.2 mph - N/A   Overcast
4:51 AM 52.0 °F 46.9 °F 83% 29.96 in 9.0 mi North 4.6 mph - 0.00 in Rain Light Rain
4:59 AM 51.8 °F 48.2 °F 88% 29.96 in 8.0 mi NNW 5.8 mph - 0.00 in Rain Light Rain
5:37 AM 51.8 °F 48.2 °F 88% 29.97 in 7.0 mi NE 6.9 mph - 0.02 in Rain Rain
5:51 AM 52.0 °F 48.9 °F 89% 29.98 in 10.0 mi NNE 6.9 mph - 0.03 in Rain Light Rain
5:59 AM 51.8 °F 48.2 °F 88% 29.98 in 10.0 mi North 6.9 mph - 0.00 in Rain Light Rain
6:51 AM 52.0 °F 48.9 °F 89% 30.01 in 3.0 mi North 9.2 mph - 0.02 in Rain Rain
7:37 AM 51.8 °F 48.2 °F 88% 30.02 in 5.0 mi NNE 5.8 mph - 0.05 in Rain Light Rain
7:51 AM 52.0 °F 48.9 °F 89% 30.02 in 8.0 mi North 3.5 mph - 0.05 in Rain Light Rain
8:51 AM 54.0 °F 48.9 °F 83% 30.04 in 10.0 mi NNE 5.8 mph - 0.00 in   Overcast
9:51 AM 55.9 °F 46.0 °F 69% 30.06 in 10.0 mi North 11.5 mph - N/A   Mostly Cloudy
10:51 AM 55.9 °F 44.1 °F 64% 30.06 in 10.0 mi NW 11.5 mph - N/A   Mostly Cloudy
11:51 AM 57.0 °F 41.0 °F 55% 30.05 in 10.0 mi NW 11.5 mph 18.4 mph N/A   Scattered Clouds
12:00 PM - - N/A% - - North - - N/A   Sand
12:51 PM 57.9 °F 39.0 °F 49% 30.04 in 10.0 mi NNW 11.5 mph - N/A   Partly Cloudy
1:51 PM 59.0 °F 37.0 °F 44% 30.04 in 10.0 mi NW 9.2 mph - N/A   Partly Cloudy
2:51 PM 57.9 °F 33.1 °F 39% 30.04 in 10.0 mi WNW 8.1 mph - N/A   Partly Cloudy
3:51 PM 57.9 °F 37.9 °F 47% 30.04 in 10.0 mi NW 8.1 mph - N/A   Scattered Clouds
4:51 PM 55.9 °F 39.9 °F 55% 30.06 in 10.0 mi West 4.6 mph - N/A   Scattered Clouds
5:51 PM 55.9 °F 39.9 °F 55% 30.06 in 10.0 mi Calm Calm - N/A   Scattered Clouds
6:51 PM 55.9 °F 41.0 °F 57% 30.07 in 10.0 mi Calm Calm - N/A   Scattered Clouds
7:51 PM 57.0 °F 41.0 °F 55% 30.08 in 10.0 mi Calm Calm - N/A   Scattered Clouds
8:51 PM 57.0 °F 43.0 °F 59% 30.10 in 10.0 mi SSW 4.6 mph - N/A   Mostly Cloudy
9:51 PM 55.0 °F 41.0 °F 59% 30.12 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
10:51 PM 55.0 °F 41.0 °F 59% 30.14 in 10.0 mi ESE 3.5 mph - N/A   Mostly Cloudy
11:51 PM 55.0 °F 42.1 °F 62% 30.14 in 10.0 mi East 3.5 mph - N/A   Mostly Cloudy