Weather History for San Francisco, CA

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Tuesday, November 20, 2012

  Actual Average Record
Temperature  
Mean Temperature 62 °F 55 °F  
Max Temperature 66 °F 62 °F 69 °F (2005)
Min Temperature 57 °F 48 °F 35 °F (1964)
Degree Days  
Heating Degree Days 3 10  
Month to date heating degree days 131 163  
Since 1 July heating degree days 522 450  
Cooling Degree Days 0 0  
Month to date cooling degree days 6 0  
Year to date cooling degree days 86 163  
Growing Degree Days 12 (Base 50)    
Moisture  
Dew Point 54 °F    
Average Humidity 77    
Maximum Humidity 86    
Minimum Humidity 67    
Precipitation  
Precipitation 0.17 in 0.09 in 0.75 in (1961)
Month to date precipitation 1.39 1.44  
Year to date precipitation 12.55 15.68  
Since 1 July precipitation 2.09 2.60  
Sea Level Pressure  
Sea Level Pressure 30.09 in    
Wind  
Wind Speed 12 mph (SSE)    
Max Wind Speed 21 mph    
Max Gust Speed 30 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Nov. 20, 2012 Rise Set
Actual Time 6:55 AM PST 4:54 PM PST
Civil Twilight 6:26 AM PST 5:23 PM PST
Nautical Twilight 5:55 AM PST 5:55 PM PST
Astronomical Twilight 5:23 AM PST 6:26 PM PST
Moon 12:36 PM PST No Moon Set
Length of Visible Light 10h 56m
Length of Day
9h 59m
First Quarter, 52% of the Moon is Illuminated
Nov 20
First Quarter
Nov 28
Full
Dec 6
Last Quarter
Dec 13
New
Dec 19
First Quarter

Hourly Weather History & Observations

Time (PST) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 59.0 °F 48.9 °F 69% 30.16 in 10.0 mi ESE 8.1 mph - N/A   Mostly Cloudy
1:56 AM 59.0 °F 50.0 °F 72% 30.15 in 10.0 mi ESE 4.6 mph - N/A   Overcast
2:56 AM 60.1 °F 50.0 °F 69% 30.14 in 10.0 mi SE 10.4 mph - N/A   Mostly Cloudy
3:56 AM 59.0 °F 52.0 °F 78% 30.13 in 10.0 mi ESE 12.7 mph - N/A   Mostly Cloudy
4:56 AM 57.0 °F 53.1 °F 87% 30.12 in 7.0 mi ESE 8.1 mph - 0.01 in Rain Light Rain
5:37 AM 57.2 °F 53.6 °F 88% 30.13 in 9.0 mi SE 8.1 mph - 0.00 in Rain Light Rain
5:56 AM 57.9 °F 53.1 °F 84% 30.14 in 10.0 mi SE 10.4 mph - 0.01 in Rain Light Rain
6:56 AM 57.9 °F 53.1 °F 84% 30.14 in 9.0 mi SE 10.4 mph - 0.00 in Rain Light Rain
7:56 AM 59.0 °F 54.0 °F 83% 30.14 in 10.0 mi SE 8.1 mph - 0.01 in   Overcast
8:56 AM 61.0 °F 55.0 °F 81% 30.13 in 10.0 mi ESE 8.1 mph - 0.00 in   Mostly Cloudy
9:56 AM 64.0 °F 55.9 °F 75% 30.13 in 10.0 mi South 12.7 mph - N/A   Mostly Cloudy
10:56 AM 64.0 °F 55.0 °F 73% 30.12 in 10.0 mi South 9.2 mph - N/A   Overcast
11:56 AM 64.4 °F 55.4 °F 73% 30.09 in 10.0 mi South 16.1 mph - N/A   Mostly Cloudy
12:56 PM 66.0 °F 55.0 °F 68% 30.07 in 10.0 mi South 15.0 mph - N/A   Overcast
1:56 PM 64.9 °F 55.9 °F 73% 30.06 in 10.0 mi South 15.0 mph 23.0 mph 0.00 in   Overcast
2:56 PM 64.0 °F 55.9 °F 75% 30.06 in 10.0 mi South 12.7 mph - 0.00 in Rain Light Rain
3:09 PM 64.4 °F 55.4 °F 73% 30.05 in 10.0 mi South 10.4 mph 17.3 mph 0.00 in   Mostly Cloudy
3:37 PM 64.4 °F 55.4 °F 73% 30.05 in 10.0 mi South 20.7 mph 28.8 mph 0.00 in Rain Light Rain
3:56 PM 64.0 °F 55.0 °F 73% 30.05 in 10.0 mi South 15.0 mph 25.3 mph 0.00 in   Mostly Cloudy
4:42 PM 62.6 °F 55.4 °F 77% 30.04 in 10.0 mi South 13.8 mph 24.2 mph N/A   Mostly Cloudy
4:56 PM 63.0 °F 55.0 °F 75% 30.05 in 10.0 mi South 12.7 mph - N/A   Mostly Cloudy
5:56 PM 63.0 °F 55.0 °F 75% 30.04 in 10.0 mi South 18.4 mph - N/A   Mostly Cloudy
6:56 PM 63.0 °F 55.0 °F 75% 30.04 in 10.0 mi SSE 18.4 mph - 0.00 in Rain Light Rain
7:52 PM 62.6 °F 53.6 °F 72% 30.05 in 10.0 mi South 18.4 mph 25.3 mph 0.00 in   Overcast
7:56 PM 63.0 °F 54.0 °F 72% 30.05 in 10.0 mi South 16.1 mph 25.3 mph 0.00 in   Overcast
8:53 PM 62.6 °F 55.4 °F 77% 30.04 in 10.0 mi South 18.4 mph 25.3 mph N/A   Overcast
8:56 PM 63.0 °F 55.0 °F 75% 30.05 in 10.0 mi South 17.3 mph 25.3 mph N/A   Overcast
9:56 PM 63.0 °F 55.0 °F 75% 30.05 in 10.0 mi SSE 16.1 mph 26.5 mph 0.00 in Rain Light Rain
10:56 PM 61.0 °F 55.9 °F 83% 30.06 in 4.0 mi South 10.4 mph - 0.03 in Rain Light Rain
11:56 PM 61.0 °F 57.0 °F 87% 30.05 in 3.0 mi ESE 3.5 mph - 0.11 in Rain Light Rain