Weather History for San Francisco, CA

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Wednesday, January 29, 2014

  Actual Average Record
Temperature  
Mean Temperature 59 °F 51 °F  
Max Temperature 63 °F 58 °F 66 °F (2009)
Min Temperature 54 °F 45 °F 31 °F (1979)
Degree Days  
Heating Degree Days 6 14  
Month to date heating degree days 278 427  
Since 1 July heating degree days 1246 1437  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Growing Degree Days 8 (Base 50)    
Moisture  
Dew Point 54 °F    
Average Humidity 89    
Maximum Humidity 93    
Minimum Humidity 84    
Precipitation  
Precipitation T in 0.13 in 1.57 in (1968)
Month to date precipitation 0.01 3.91  
Year to date precipitation 0.01 3.91  
Since 1 July precipitation 1.50 11.48  
Sea Level Pressure  
Sea Level Pressure 30.11 in    
Wind  
Wind Speed 8 mph (WNW)    
Max Wind Speed 20 mph    
Max Gust Speed 22 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jan. 29, 2014 Rise Set
Actual Time 7:15 AM PST 5:30 PM PST
Civil Twilight 6:47 AM PST 5:57 PM PST
Nautical Twilight 6:16 AM PST 6:29 PM PST
Astronomical Twilight 5:45 AM PST 7:00 PM PST
Moon 5:56 AM PST (1/29) 4:36 PM PST (1/29)
Length of Visible Light 11h 10m
Length of Day
10h 14m
Waning Crescent, 2% of the Moon is Illuminated
Jan 29
Waning Crescent
Jan 30
New
Feb 6
First Quarter
Feb 14
Full
Feb 22
Last 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 58.5 °F 55.9 °F 91% 30.20 in 10.0 mi WNW 5.8 mph - N/A   Overcast
1:56 AM 57.9 °F 55.9 °F 93% 30.19 in 10.0 mi NW 4.6 mph - N/A   Overcast
2:56 AM 58.3 °F 55.9 °F 92% 30.20 in 10.0 mi NW 5.8 mph - N/A   Overcast
3:56 AM 60.4 °F 55.9 °F 85% 30.19 in 10.0 mi WNW 3.5 mph - N/A   Overcast
4:56 AM 59.0 °F 55.9 °F 90% 30.19 in 10.0 mi WNW 3.5 mph - N/A   Overcast
5:56 AM 58.6 °F 55.9 °F 91% 30.18 in 10.0 mi NW 4.6 mph - N/A   Overcast
6:56 AM 59.0 °F 55.0 °F 87% 30.17 in 9.0 mi Calm Calm - N/A   Overcast
7:56 AM 57.9 °F 55.9 °F 93% 30.17 in 9.0 mi Calm Calm - N/A   Overcast
8:56 AM 57.9 °F 55.0 °F 90% 30.19 in 9.0 mi NNW 4.6 mph - N/A   Overcast
9:56 AM 57.9 °F 55.9 °F 93% 30.19 in 8.0 mi ENE 5.8 mph - N/A   Overcast
10:56 AM 57.9 °F 55.0 °F 90% 30.19 in 8.0 mi ENE 4.6 mph - N/A   Overcast
11:56 AM 57.9 °F 55.0 °F 90% 30.17 in 8.0 mi West 10.4 mph - N/A   Overcast
12:56 PM 62.1 °F 55.9 °F 80% 30.12 in 9.0 mi SW 10.4 mph - N/A   Overcast
1:56 PM 63.0 °F 57.0 °F 81% 30.10 in 9.0 mi WNW 8.1 mph - N/A   Overcast
2:56 PM 60.1 °F 55.9 °F 86% 30.09 in 10.0 mi WSW 8.1 mph - N/A   Overcast
3:56 PM 59.0 °F 55.0 °F 87% 30.07 in 10.0 mi WSW 15.0 mph - N/A   Overcast
4:56 PM 55.9 °F 52.0 °F 87% 30.06 in 10.0 mi West 11.5 mph - N/A   Overcast
5:19 PM 55.4 °F 51.8 °F 88% 30.06 in 10.0 mi West 11.5 mph - N/A   Mostly Cloudy
5:37 PM 55.4 °F 51.8 °F 88% 30.05 in 10.0 mi WNW 8.1 mph - N/A   Mostly Cloudy
5:56 PM 55.9 °F 51.1 °F 84% 30.04 in 10.0 mi WSW 10.4 mph - N/A   Mostly Cloudy
6:56 PM 55.0 °F 51.1 °F 86% 30.03 in 10.0 mi West 4.6 mph - N/A   Mostly Cloudy
7:56 PM 55.0 °F 51.1 °F 86% 30.04 in 10.0 mi West 12.7 mph - N/A   Overcast
8:56 PM 55.0 °F 51.1 °F 86% 30.02 in 10.0 mi West 13.8 mph - N/A   Mostly Cloudy
9:56 PM 54.0 °F 50.0 °F 86% 30.02 in 10.0 mi West 12.7 mph - N/A   Overcast
10:56 PM 54.0 °F 51.1 °F 90% 30.01 in 10.0 mi West 15.0 mph - 0.00 in Rain Light Rain
11:56 PM 54.0 °F 51.1 °F 90% 30.00 in 10.0 mi West 11.5 mph - 0.00 in   Overcast