Weather History for San Francisco, CA

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Saturday, December 1, 2012

  Actual Average Record
Temperature  
Mean Temperature 61 °F 52 °F  
Max Temperature 64 °F 59 °F 70 °F (1959)
Min Temperature 58 °F 46 °F 38 °F (1976)
Degree Days  
Heating Degree Days 4 13  
Month to date heating degree days 4 13  
Since 1 July heating degree days 599 577  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 86 164  
Growing Degree Days 10 (Base 50)    
Moisture  
Dew Point 55 °F    
Average Humidity 83    
Maximum Humidity 93    
Minimum Humidity 72    
Precipitation  
Precipitation 0.82 in 0.11 in 1.68 in (1951)
Month to date precipitation 0.82 0.11  
Year to date precipitation 16.04 16.73  
Since 1 July precipitation 5.58 3.65  
Sea Level Pressure  
Sea Level Pressure 29.97 in    
Wind  
Wind Speed 13 mph (SSE)    
Max Wind Speed 25 mph    
Max Gust Speed 33 mph    
Visibility 6 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 01, 2012 Rise Set
Actual Time 7:06 AM PST 4:51 PM PST
Civil Twilight 6:37 AM PST 5:20 PM PST
Nautical Twilight 6:04 AM PST 5:52 PM PST
Astronomical Twilight 5:33 AM PST 6:24 PM PST
Moon 7:45 PM PST (12/1) 9:23 AM PST (12/1)
Length of Visible Light 10h 42m
Length of Day
9h 44m
Waning Gibbous, 91% of the Moon is Illuminated
Dec 1
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
12:56 AM 59.0 °F 52.0 °F 78% 30.00 in 10.0 mi SSE 9.2 mph - N/A   Mostly Cloudy
1:52 AM 60.8 °F 51.8 °F 72% 29.99 in 10.0 mi SSE 13.8 mph - N/A   Overcast
1:56 AM 60.1 °F 52.0 °F 75% 29.99 in 10.0 mi SSE 13.8 mph - N/A   Overcast
2:56 AM 57.9 °F 54.0 °F 87% 29.98 in 3.0 mi SE 10.4 mph - 0.01 in Rain Light Rain
3:16 AM 57.2 °F 53.6 °F 88% 29.98 in 3.0 mi SE 12.7 mph - 0.02 in Rain Light Rain
3:56 AM 57.9 °F 54.0 °F 87% 29.97 in 5.0 mi SE 13.8 mph - 0.05 in Rain Light Rain
4:56 AM 59.0 °F 54.0 °F 83% 29.96 in 10.0 mi SSE 12.7 mph - 0.00 in   Overcast
5:41 AM 57.2 °F 55.4 °F 94% 29.96 in 2.5 mi SE 13.8 mph - 0.02 in Rain Light Rain
5:56 AM 57.9 °F 55.0 °F 90% 29.96 in 2.5 mi SE 12.7 mph - 0.04 in Rain Rain
6:08 AM 57.2 °F 55.4 °F 94% 29.97 in 3.0 mi SSE 10.4 mph - 0.01 in Rain Light Rain
6:56 AM 57.9 °F 55.0 °F 90% 29.98 in 4.0 mi ESE 10.4 mph - 0.10 in Rain Light Rain
7:39 AM 59.0 °F 55.4 °F 88% 29.99 in 4.0 mi SE 11.5 mph - 0.01 in Rain Light Rain
7:41 AM 59.0 °F 55.4 °F 88% 29.98 in 2.5 mi SE 10.4 mph - 0.01 in Rain Light Rain
7:56 AM 59.0 °F 55.9 °F 90% 29.99 in 2.5 mi SE 15.0 mph - 0.04 in Rain Light Rain
8:23 AM 60.8 °F 57.2 °F 88% 30.00 in 4.0 mi SSE 12.7 mph - 0.01 in Rain Light Rain
8:54 AM 62.6 °F 57.2 °F 82% 30.01 in 2.5 mi South 15.0 mph - 0.01 in Rain Light Rain
8:56 AM 62.1 °F 57.0 °F 84% 30.01 in 2.5 mi South 15.0 mph - 0.02 in Rain Light Rain
9:21 AM 62.6 °F 57.2 °F 82% 30.02 in 5.0 mi South 11.5 mph - 0.00 in Rain Light Rain
9:56 AM 62.1 °F 57.0 °F 84% 30.03 in 6.0 mi South 15.0 mph 23.0 mph 0.01 in Rain Light Rain
10:56 AM 62.1 °F 57.0 °F 84% 30.04 in 4.0 mi South 9.2 mph - 0.04 in Rain Light Rain
11:56 AM 63.0 °F 57.0 °F 81% 30.02 in 10.0 mi SSW 8.1 mph - 0.01 in   Overcast
12:56 PM 64.0 °F 55.9 °F 75% 30.01 in 10.0 mi SSW 9.2 mph - 0.00 in   Mostly Cloudy
1:56 PM 63.0 °F 54.0 °F 72% 30.00 in 10.0 mi SSW 12.7 mph - 0.00 in   Mostly Cloudy
2:56 PM 63.0 °F 55.0 °F 75% 29.99 in 10.0 mi South 10.4 mph - N/A   Overcast
3:56 PM 62.1 °F 54.0 °F 75% 29.99 in 10.0 mi South 10.4 mph - 0.00 in   Overcast
4:56 PM 61.0 °F 55.0 °F 81% 29.97 in 9.0 mi SSE 11.5 mph 21.9 mph 0.00 in Rain Light Rain
5:48 PM 60.8 °F 53.6 °F 77% 29.96 in 9.0 mi South 6.9 mph - 0.01 in Rain Light Rain
5:56 PM 60.1 °F 54.0 °F 80% 29.95 in 4.0 mi SE 8.1 mph - 0.02 in Rain Heavy Rain
6:56 PM 60.1 °F 55.0 °F 83% 29.94 in 8.0 mi SE 11.5 mph - 0.07 in Rain Light Rain
7:33 PM 59.0 °F 55.4 °F 88% 29.91 in 4.0 mi ESE 13.8 mph - 0.15 in Rain Heavy Rain
7:56 PM 59.0 °F 55.9 °F 90% 29.91 in 4.0 mi ESE 13.8 mph - 0.24 in Rain Heavy Rain
8:14 PM 59.0 °F 55.4 °F 88% 29.91 in 8.0 mi SE 13.8 mph - 0.04 in Rain Light Rain
8:45 PM 59.0 °F 55.4 °F 88% 29.91 in 5.0 mi SSE 12.7 mph - 0.09 in Rain Rain
8:56 PM 59.0 °F 55.9 °F 90% 29.91 in 5.0 mi SE 13.8 mph - 0.10 in Rain Light Rain
9:18 PM 59.0 °F 55.4 °F 88% 29.90 in 4.0 mi SE 11.5 mph - 0.03 in Rain Light Rain
9:56 PM 62.1 °F 57.0 °F 84% 29.90 in 3.0 mi South 21.9 mph 28.8 mph 0.04 in   Haze
10:56 PM 62.1 °F 57.0 °F 84% 29.90 in 5.0 mi South 20.7 mph 31.1 mph 0.02 in Rain Light Rain
11:56 PM 62.1 °F 57.9 °F 86% 29.89 in 5.0 mi South 17.3 mph 27.6 mph 0.01 in Rain Light Rain