Weather History for KSFO - January, 2005

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Saturday, January 15, 2005

  Actual Average Record
Temperature  
Mean Temperature 44 °F 50 °F  
Max Temperature 50 °F 56 °F 73 °F (2014)
Min Temperature 39 °F 44 °F 31 °F (1963)
Degree Days  
Heating Degree Days 20 15  
Month to date heating degree days 225  
Since 1 July heating degree days 1235  
Cooling Degree Days 0 0  
Month to date cooling degree days 0  
Year to date cooling degree days 0  
Moisture  
Dew Point 43 °F    
Average Humidity 90    
Maximum Humidity 100    
Minimum Humidity 74    
Precipitation  
Precipitation 0.00 in 0.14 in 1.03 in (1956)
Month to date precipitation 2.11  
Year to date precipitation 2.11  
Since 1 July precipitation 9.68  
Sea Level Pressure  
Sea Level Pressure 30.34 in    
Wind  
Wind Speed 6 mph (East)    
Max Wind Speed 8 mph    
Max Gust Speed -    
Visibility 6 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jan. 15, 2005 Rise Set
Actual Time 7:23 AM PST 5:15 PM PST
Civil Twilight 6:54 AM PST 5:43 PM PST
Nautical Twilight 6:22 AM PST 6:15 PM PST
Astronomical Twilight 5:51 AM PST 6:47 PM PST
Moon 10:55 AM PST (1/15) 11:36 PM PST (1/15)
Length of Visible Light 10h 49m
Length of Day
9h 51m
Waxing Crescent, 35% of the Moon is Illuminated
Jan 15
Waxing Crescent
Jan 16
First Quarter
Jan 25
Full
Feb 1
Last Quarter
Feb 8
New

Hourly Weather History & Observations

Time (PST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 43.0 °F 38.8 °F 42.1 °F 97% 30.30 in 7.0 mi ESE 6.9 mph - N/A   Partly Cloudy
1:56 AM 42.1 °F 37.7 °F 41.0 °F 96% 30.30 in 7.0 mi SE 6.9 mph - N/A   Partly Cloudy
2:56 AM 41.0 °F 37.1 °F 39.9 °F 96% 30.31 in 7.0 mi SE 5.8 mph - N/A   Partly Cloudy
3:56 AM 44.1 °F 39.5 °F 41.0 °F 89% 30.31 in 8.0 mi East 8.1 mph - N/A   Partly Cloudy
4:56 AM 39.9 °F 37.8 °F 39.9 °F 100% 30.31 in 6.0 mi SSE 3.5 mph - N/A   Partly Cloudy
5:56 AM 41.0 °F 35.8 °F 39.9 °F 96% 30.31 in 6.0 mi SE 8.1 mph - N/A   Partly Cloudy
6:56 AM 41.0 °F 36.4 °F 39.9 °F 96% 30.32 in 6.0 mi SE 6.9 mph - N/A   Partly Cloudy
7:56 AM 41.0 °F 35.8 °F 39.9 °F 96% 30.34 in 5.0 mi SE 8.1 mph - N/A   Scattered Clouds
8:56 AM 43.0 °F 38.8 °F 41.0 °F 93% 30.36 in 4.0 mi SSE 6.9 mph - N/A   Scattered Clouds
9:56 AM 45.0 °F 41.8 °F 42.1 °F 90% 30.38 in 4.0 mi ESE 5.8 mph - N/A   Mostly Cloudy
10:56 AM 46.0 °F 43.9 °F 42.1 °F 86% 30.38 in 6.0 mi East 4.6 mph - N/A   Mostly Cloudy
11:56 AM 46.9 °F - 44.1 °F 90% 30.36 in 5.0 mi East 6.9 mph - N/A   Overcast
12:56 PM 50.0 °F - 42.1 °F 74% 30.33 in 7.0 mi ESE 4.6 mph - N/A   Mostly Cloudy
1:56 PM 50.0 °F - 42.1 °F 74% 30.33 in 8.0 mi Calm Calm - N/A   Overcast
2:56 PM 50.0 °F - 44.1 °F 80% 30.33 in 7.0 mi Calm Calm - N/A   Overcast
3:56 PM 50.0 °F - 45.0 °F 83% 30.33 in 7.0 mi ENE 3.5 mph - N/A   Overcast
4:56 PM 50.0 °F - 46.0 °F 86% 30.34 in 5.0 mi NNE 4.6 mph - N/A   Overcast
5:56 PM 50.0 °F - 46.0 °F 86% 30.35 in 6.0 mi NNE 5.8 mph - N/A   Overcast
6:56 PM 48.9 °F - 46.9 °F 93% 30.36 in 5.0 mi NE 4.6 mph - N/A   Overcast
7:56 PM 48.0 °F - 45.0 °F 89% 30.36 in 6.0 mi ENE 5.8 mph - N/A   Overcast
8:56 PM 48.0 °F - 46.0 °F 93% 30.36 in 6.0 mi East 6.9 mph - N/A   Overcast
9:56 PM 48.0 °F - 46.0 °F 93% 30.38 in 6.0 mi NNE 5.8 mph - N/A   Overcast
10:56 PM 46.9 °F - 45.0 °F 93% 30.39 in 4.0 mi NE 4.6 mph - N/A   Overcast
11:56 PM 46.9 °F - 44.1 °F 90% 30.40 in 4.0 mi NNE 5.8 mph - N/A   Overcast