Weather History for San Francisco, CA

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Monday, February 14, 2005

  Actual Average Record
Temperature  
Mean Temperature 54 °F 53 °F  
Max Temperature 55 °F 60 °F 74 °F (1977)
Min Temperature 53 °F 46 °F 30 °F (1949)
Degree Days  
Heating Degree Days 11 12  
Month to date heating degree days 178  
Since 1 July heating degree days 1645  
Cooling Degree Days 0 0  
Month to date cooling degree days 0  
Year to date cooling degree days 0  
Growing Degree Days 4 (Base 50)    
Moisture  
Dew Point 53 °F    
Average Humidity 96    
Maximum Humidity 100    
Minimum Humidity 87    
Precipitation  
Precipitation 0.58 in 0.14 in 1.48 in (1986)
Month to date precipitation 2.06  
Year to date precipitation 6.25  
Since 1 July precipitation 13.82  
Sea Level Pressure  
Sea Level Pressure 30.06 in    
Wind  
Wind Speed 2 mph (East)    
Max Wind Speed 10 mph    
Max Gust Speed -    
Visibility 8 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Feb. 14, 2005 Rise Set
Actual Time 6:59 AM PST 5:48 PM PST
Civil Twilight 6:32 AM PST 6:14 PM PST
Nautical Twilight 6:02 AM PST 6:45 PM PST
Astronomical Twilight 5:31 AM PST 7:16 PM PST
Moon 10:12 AM PST (2/14) No Moon Set
Length of Visible Light 11h 41m
Length of Day
10h 48m
Waxing Crescent, 38% of the Moon is Illuminated
Feb 14
Waxing Crescent
Feb 15
First Quarter
Feb 23
Full
Mar 3
Last Quarter
Mar 10
New

Hourly Weather History & Observations

Time (PST) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 55.0 °F 53.1 °F 93% 30.12 in 10.0 mi ESE 3.5 mph - N/A   Overcast
1:56 AM 54.0 °F 53.1 °F 97% 30.10 in 10.0 mi Calm Calm - N/A   Overcast
2:56 AM 54.0 °F 52.0 °F 93% 30.10 in 10.0 mi Calm Calm - N/A   Overcast
3:56 AM 55.0 °F 52.0 °F 89% 30.08 in 10.0 mi ESE 3.5 mph - N/A   Overcast
4:56 AM 55.0 °F 54.0 °F 96% 30.08 in 10.0 mi East 5.8 mph - N/A   Overcast
5:56 AM 54.0 °F 52.0 °F 93% 30.06 in 10.0 mi Calm Calm - N/A   Overcast
6:56 AM 54.0 °F 52.0 °F 93% 30.06 in 10.0 mi Calm Calm - N/A   Overcast
7:56 AM 55.0 °F 52.0 °F 89% 30.08 in 10.0 mi Calm Calm - N/A   Overcast
8:56 AM 55.9 °F 52.0 °F 87% 30.09 in 10.0 mi Calm Calm - N/A   Overcast
9:56 AM 55.9 °F 53.1 °F 90% 30.09 in 10.0 mi Calm Calm - N/A   Overcast
10:56 AM 55.9 °F 54.0 °F 93% 30.09 in 10.0 mi North 4.6 mph - N/A   Overcast
11:56 AM 55.9 °F 54.0 °F 93% 30.08 in 10.0 mi Calm Calm - N/A   Overcast
12:56 PM 55.9 °F 52.0 °F 87% 30.06 in 10.0 mi Calm Calm - 0.00 in Rain Light Rain
1:38 PM 55.4 °F 53.6 °F 94% 30.05 in 3.0 mi Calm Calm - 0.04 in Rain Rain
1:56 PM 54.0 °F 54.0 °F 100% 30.04 in 4.0 mi East 4.6 mph - 0.17 in Rain Rain
2:56 PM 54.0 °F 54.0 °F 100% 30.04 in 6.0 mi ESE 3.5 mph - 0.10 in Rain Light Rain
3:14 PM 53.6 °F 53.6 °F 100% 30.02 in 4.0 mi NE 5.8 mph - 0.01 in Rain Light Rain
3:56 PM 53.1 °F 53.1 °F 100% 30.02 in 5.0 mi ENE 6.9 mph - 0.10 in Rain Light Rain
4:56 PM 53.1 °F 53.1 °F 100% 30.02 in 4.0 mi East 8.1 mph - 0.13 in Rain Rain
5:56 PM 54.0 °F 54.0 °F 100% 30.02 in 6.0 mi East 10.4 mph - 0.04 in Rain Light Rain
6:56 PM 54.0 °F 54.0 °F 100% 30.02 in 9.0 mi East 5.8 mph - 0.02 in Rain Light Rain
7:56 PM 53.1 °F 53.1 °F 100% 30.03 in 6.0 mi Calm Calm - 0.01 in Rain Light Rain
8:36 PM 53.6 °F 53.6 °F 100% 30.03 in 7.0 mi Calm Calm - 0.00 in Rain Light Rain
8:56 PM 53.1 °F 53.1 °F 100% 30.03 in 7.0 mi Calm Calm - 0.01 in   Overcast
9:56 PM 53.1 °F 53.1 °F 100% 30.03 in 7.0 mi Calm Calm - N/A   Overcast
10:56 PM 53.1 °F 53.1 °F 100% 30.04 in 5.0 mi Calm Calm - N/A   Overcast
11:56 PM 53.1 °F 53.1 °F 100% 30.04 in 7.0 mi ENE 3.5 mph - N/A   Overcast