Weather History for San Francisco, CA

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Sunday, December 2, 2012

  Actual Average Record
Temperature  
Mean Temperature 58 °F 52 °F  
Max Temperature 64 °F 59 °F 75 °F (1958)
Min Temperature 51 °F 46 °F 37 °F (1967)
Degree Days  
Heating Degree Days 7 13  
Month to date heating degree days 11 26  
Since 1 July heating degree days 606 590  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 86 164  
Growing Degree Days 8 (Base 50)    
Moisture  
Dew Point 53 °F    
Average Humidity 77    
Maximum Humidity 93    
Minimum Humidity 60    
Precipitation  
Precipitation 0.92 in 0.10 in 1.85 in (2001)
Month to date precipitation 1.74 0.21  
Year to date precipitation 16.96 16.83  
Since 1 July precipitation 6.50 3.75  
Sea Level Pressure  
Sea Level Pressure 29.90 in    
Wind  
Wind Speed 17 mph (SW)    
Max Wind Speed 44 mph    
Max Gust Speed 53 mph    
Visibility 8 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 02, 2012 Rise Set
Actual Time 7:07 AM PST 4:50 PM PST
Civil Twilight 6:38 AM PST 5:19 PM PST
Nautical Twilight 6:05 AM PST 5:52 PM PST
Astronomical Twilight 5:34 AM PST 6:24 PM PST
Moon 8:41 PM PST (12/2) 10:01 AM PST (12/2)
Length of Visible Light 10h 41m
Length of Day
9h 43m
Waning Gibbous, 85% of the Moon is Illuminated
Dec 2
Waning Gibbous
Dec 6
Last Quarter
Dec 13
New
Dec 19
First Quarter
Dec 28
Full

Hourly Weather History & Observations

Time (PST) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:33 AM 62.6 °F 57.2 °F 82% 29.88 in 10.0 mi South 18.4 mph 27.6 mph 0.01 in   Overcast
12:56 AM 63.0 °F 57.9 °F 84% 29.87 in 5.0 mi South 23.0 mph 31.1 mph 0.01 in   Haze
1:29 AM 64.4 °F 57.2 °F 77% 29.86 in 10.0 mi South 19.6 mph 34.5 mph 0.00 in Rain Light Rain
1:56 AM 64.0 °F 57.9 °F 80% 29.86 in 10.0 mi South 19.6 mph 33.4 mph 0.00 in   Overcast
2:49 AM 62.6 °F 57.2 °F 82% 29.85 in 10.0 mi SSW 34.5 mph 44.9 mph N/A   Mostly Cloudy
2:56 AM 63.0 °F 57.0 °F 81% 29.84 in 10.0 mi SSW 32.2 mph 44.9 mph N/A   Mostly Cloudy
3:19 AM 64.4 °F 57.2 °F 77% 29.82 in 10.0 mi SSW 27.6 mph 40.3 mph N/A   Mostly Cloudy
3:56 AM 64.0 °F 55.9 °F 75% 29.81 in 10.0 mi South 38.0 mph 49.5 mph N/A   Mostly Cloudy
4:17 AM 64.4 °F 55.4 °F 73% 29.79 in 10.0 mi South 32.2 mph 47.2 mph N/A   Mostly Cloudy
4:56 AM 64.0 °F 57.0 °F 78% 29.78 in 8.0 mi South 34.5 mph 49.5 mph 0.00 in Rain Light Rain
5:05 AM 62.6 °F 57.2 °F 82% 29.78 in 7.0 mi South 31.1 mph 48.3 mph 0.00 in Rain Light Rain
5:23 AM 62.6 °F 57.2 °F 82% 29.78 in 10.0 mi South 29.9 mph 42.6 mph 0.00 in Rain Light Rain
5:41 AM 62.6 °F 59.0 °F 88% 29.78 in 2.0 mi South 28.8 mph 44.9 mph 0.06 in   Overcast
5:45 AM 62.6 °F 59.0 °F 88% 29.78 in 2.0 mi South 32.2 mph 44.9 mph 0.07 in   Overcast
5:56 AM 63.0 °F 59.0 °F 87% 29.78 in 2.5 mi South 36.8 mph 51.8 mph 0.10 in   Overcast
6:26 AM 62.6 °F 59.0 °F 88% 29.76 in 6.0 mi South 39.1 mph 50.6 mph 0.04 in Rain Light Rain
6:56 AM 63.0 °F 59.0 °F 87% 29.77 in 2.5 mi South 26.5 mph 48.3 mph 0.13 in Rain Heavy Rain
7:42 AM 62.6 °F 57.2 °F 82% 29.77 in 3.0 mi South 31.1 mph 46.0 mph 0.23 in Rain Heavy Rain
7:56 AM 62.6 °F 57.2 °F 82% 29.77 in 4.0 mi South 35.7 mph 47.2 mph N/A Rain Rain
8:13 AM 62.6 °F 57.2 °F 82% 29.79 in 1.5 mi SSW 32.2 mph 46.0 mph 0.08 in Rain Heavy Rain
8:26 AM 60.8 °F 55.4 °F 82% 29.82 in 3.0 mi West 28.8 mph 49.5 mph 0.17 in Rain Heavy Rain
8:56 AM 57.9 °F 55.0 °F 90% 29.85 in 3.0 mi WSW 13.8 mph 27.6 mph 0.23 in Rain Rain
9:27 AM 57.2 °F 55.4 °F 94% 29.87 in 2.5 mi WSW 17.3 mph 24.2 mph 0.08 in Rain Heavy Rain
9:41 AM 57.2 °F 55.4 °F 94% 29.88 in 3.0 mi West 13.8 mph - 0.11 in Rain Rain
10:56 AM 60.1 °F 55.9 °F 86% 29.92 in 10.0 mi WSW 12.7 mph 24.2 mph 0.03 in   Mostly Cloudy
11:39 AM 57.2 °F 55.4 °F 94% 29.94 in 7.0 mi West 20.7 mph 28.8 mph 0.00 in Rain Rain
11:56 AM 57.9 °F 55.0 °F 90% 29.94 in 8.0 mi West 16.1 mph - 0.00 in   Mostly Cloudy
12:32 PM 59.0 °F 51.8 °F 77% 29.94 in 10.0 mi West 12.7 mph 18.4 mph N/A   Mostly Cloudy
12:56 PM 59.0 °F 50.0 °F 72% 29.95 in 10.0 mi WNW 11.5 mph - N/A   Mostly Cloudy
1:56 PM 60.1 °F 48.9 °F 67% 29.97 in 10.0 mi West 11.5 mph - N/A   Scattered Clouds
2:56 PM 60.1 °F 46.0 °F 60% 29.99 in 10.0 mi West 13.8 mph - N/A   Scattered Clouds
3:56 PM 59.0 °F 46.4 °F 63% 30.00 in 10.0 mi West 10.4 mph - N/A   Scattered Clouds
4:56 PM 57.0 °F 46.0 °F 67% 30.02 in 10.0 mi West 5.8 mph - N/A   Scattered Clouds
5:56 PM 55.9 °F 45.0 °F 67% 30.02 in 10.0 mi West 9.2 mph - N/A   Partly Cloudy
6:56 PM 55.0 °F 45.0 °F 69% 30.05 in 10.0 mi WSW 8.1 mph - N/A   Clear
7:56 PM 53.1 °F 44.1 °F 71% 30.07 in 10.0 mi WNW 4.6 mph - N/A   Clear
8:56 PM 51.1 °F 44.1 °F 77% 30.08 in 10.0 mi SSW 4.6 mph - N/A   Clear
9:56 PM 52.0 °F 44.1 °F 74% 30.09 in 10.0 mi SW 5.8 mph - N/A   Partly Cloudy
10:56 PM 53.1 °F 46.0 °F 77% 30.11 in 10.0 mi West 8.1 mph - N/A   Mostly Cloudy
11:56 PM 54.0 °F 46.9 °F 77% 30.11 in 10.0 mi NNW 3.5 mph - N/A   Mostly Cloudy