Weather History for San Francisco, CA

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Friday, January 16, 2004

  Actual Average Record
Temperature  
Mean Temperature 52 °F 50 °F  
Max Temperature 53 °F 56 °F 73 °F (2014)
Min Temperature 50 °F 44 °F 31 °F (1962)
Degree Days  
Heating Degree Days 13 15  
Month to date heating degree days 240  
Since 1 July heating degree days 1250  
Cooling Degree Days 0 0  
Month to date cooling degree days 0  
Year to date cooling degree days 0  
Growing Degree Days 2 (Base 50)    
Moisture  
Dew Point 48 °F    
Average Humidity 86    
Maximum Humidity 100    
Minimum Humidity 71    
Precipitation  
Precipitation 0.00 in 0.13 in 1.84 in (1973)
Month to date precipitation 2.24  
Year to date precipitation 2.24  
Since 1 July precipitation 9.81  
Sea Level Pressure  
Sea Level Pressure 30.05 in    
Wind  
Wind Speed 5 mph (East)    
Max Wind Speed 10 mph    
Max Gust Speed -    
Visibility 8 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Jan. 16, 2004 Rise Set
Actual Time 7:23 AM PST 5:15 PM PST
Civil Twilight 6:54 AM PST 5:44 PM PST
Nautical Twilight 6:22 AM PST 6:16 PM PST
Astronomical Twilight 5:50 AM PST 6:47 PM PST
Moon 1:52 AM PST (1/16) 12:31 PM PST (1/16)
Length of Visible Light 10h 49m
Length of Day
9h 52m
Waning Crescent, 32% of the Moon is Illuminated
Jan 16
Waning Crescent
Jan 21
New
Jan 28
First Quarter
Feb 6
Full
Feb 13
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 53.1 °F 50.0 °F 89% 30.04 in 10.0 mi WSW 4.6 mph - N/A   Overcast
1:56 AM 52.0 °F 51.1 °F 97% 30.04 in 7.0 mi SSW 3.5 mph - N/A   Overcast
2:56 AM 52.0 °F 51.1 °F 97% 30.04 in 6.0 mi SE 3.5 mph - N/A   Overcast
3:16 AM 51.8 °F 51.8 °F 100% 30.03 in 9.0 mi ESE 3.5 mph - N/A   Overcast
3:56 AM 51.1 °F 51.1 °F 100% 30.03 in 7.0 mi East 3.5 mph - N/A   Overcast
4:42 AM 51.8 °F 51.8 °F 100% 30.03 in 10.0 mi East 3.5 mph - N/A   Overcast
4:56 AM 52.0 °F 51.1 °F 97% 30.03 in 10.0 mi East 5.8 mph - N/A   Overcast
5:56 AM 52.0 °F 50.0 °F 93% 30.03 in 10.0 mi SSE 5.8 mph - N/A   Overcast
6:30 AM 51.8 °F 51.8 °F 100% 30.04 in 8.0 mi NE 8.1 mph - N/A   Overcast
6:56 AM 52.0 °F 51.1 °F 97% 30.04 in 7.0 mi East 3.5 mph - N/A   Overcast
7:56 AM 52.0 °F 50.0 °F 93% 30.06 in 5.0 mi East 4.6 mph - N/A   Overcast
8:56 AM 52.0 °F 46.9 °F 83% 30.07 in 9.0 mi NE 10.4 mph - N/A   Overcast
9:56 AM 52.0 °F 46.9 °F 83% 30.09 in 7.0 mi NE 8.1 mph - N/A   Overcast
10:56 AM 52.0 °F 46.0 °F 80% 30.10 in 10.0 mi NNE 9.2 mph - N/A   Overcast
11:56 AM 52.0 °F 46.9 °F 83% 30.07 in 8.0 mi ENE 6.9 mph - N/A   Overcast
12:56 PM 53.1 °F 46.0 °F 77% 30.05 in 7.0 mi North 5.8 mph - N/A   Overcast
1:56 PM 52.0 °F 46.0 °F 80% 30.03 in 8.0 mi North 5.8 mph - N/A   Overcast
2:56 PM 53.1 °F 44.1 °F 71% 30.02 in 8.0 mi East 3.5 mph - N/A   Overcast
3:56 PM 53.1 °F 45.0 °F 74% 30.02 in 8.0 mi East 4.6 mph - N/A   Overcast
4:56 PM 52.0 °F 45.0 °F 77% 30.03 in 9.0 mi ESE 5.8 mph - N/A   Mostly Cloudy
5:56 PM 52.0 °F 45.0 °F 77% 30.06 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:56 PM 52.0 °F 46.0 °F 80% 30.06 in 9.0 mi ENE 3.5 mph - N/A   Mostly Cloudy
7:56 PM 52.0 °F 46.0 °F 80% 30.07 in 8.0 mi ENE 6.9 mph - N/A   Mostly Cloudy
8:56 PM 52.0 °F 46.0 °F 80% 30.07 in 8.0 mi East 5.8 mph - N/A   Mostly Cloudy
9:56 PM 51.1 °F 45.0 °F 80% 30.07 in 8.0 mi ESE 10.4 mph - N/A   Mostly Cloudy
10:56 PM 51.1 °F 44.1 °F 77% 30.09 in 8.0 mi ESE 4.6 mph - N/A   Mostly Cloudy
11:56 PM 50.0 °F 44.1 °F 80% 30.09 in 8.0 mi SSE 4.6 mph - N/A   Mostly Cloudy