Weather History for San Francisco, CA

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Saturday, January 5, 2002

  Actual Average Record
Temperature  
Mean Temperature 51 °F 50 °F  
Max Temperature 54 °F 56 °F 66 °F (2014)
Min Temperature 48 °F 44 °F 26 °F (1949)
Degree Days  
Heating Degree Days 14 15  
Month to date heating degree days 75  
Since 1 July heating degree days 1085  
Cooling Degree Days 0 0  
Month to date cooling degree days 0  
Year to date cooling degree days 0  
Growing Degree Days 1 (Base 50)    
Moisture  
Dew Point 48 °F    
Average Humidity 87    
Maximum Humidity 100    
Minimum Humidity 77    
Precipitation  
Precipitation 0.00 in 0.14 in 1.98 in (1959)
Month to date precipitation 0.69  
Year to date precipitation 0.69  
Since 1 July precipitation 8.26  
Sea Level Pressure  
Sea Level Pressure 30.34 in    
Wind  
Wind Speed 2 mph (NNE)    
Max Wind Speed 8 mph    
Max Gust Speed -    
Visibility 7 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Jan. 05, 2002 Rise Set
Actual Time 7:24 AM PST 5:05 PM PST
Civil Twilight 6:55 AM PST 5:34 PM PST
Nautical Twilight 6:23 AM PST 6:06 PM PST
Astronomical Twilight 5:51 AM PST 6:38 PM PST
Moon No Moon Rise 11:56 AM PST (1/5)
Length of Visible Light 10h 38m
Length of Day
9h 40m
Waning Gibbous, 54% of the Moon is Illuminated
Jan 5
Waning Gibbous
Jan 5
Last Quarter
Jan 13
New
Jan 21
First Quarter
Jan 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 50.0 °F 46.9 °F 89% 30.32 in 10.0 mi Calm Calm - N/A   Scattered Clouds
1:56 AM 48.9 °F 46.9 °F 93% 30.30 in 10.0 mi South 4.6 mph - N/A   Scattered Clouds
2:56 AM 48.9 °F 46.0 °F 90% 30.30 in 10.0 mi Calm Calm - N/A   Scattered Clouds
3:56 AM 50.0 °F 46.0 °F 86% 30.30 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
4:56 AM 50.0 °F 46.9 °F 89% 30.31 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
5:56 AM 51.1 °F 46.9 °F 86% 30.33 in 10.0 mi NNE 6.9 mph - N/A   Mostly Cloudy
6:56 AM 51.1 °F 46.9 °F 86% 30.34 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
7:56 AM 51.1 °F 46.9 °F 86% 30.35 in 10.0 mi SE 3.5 mph - N/A   Mostly Cloudy
8:56 AM 52.0 °F 46.0 °F 80% 30.37 in 9.0 mi Calm Calm - N/A   Overcast
9:56 AM 52.0 °F 46.9 °F 83% 30.38 in 9.0 mi NNE 3.5 mph - N/A   Overcast
10:56 AM 53.1 °F 48.0 °F 83% 30.38 in 9.0 mi NNE 4.6 mph - 0.00 in Rain Light Rain
11:56 AM 53.1 °F 46.9 °F 80% 30.35 in 9.0 mi ENE 3.5 mph - 0.00 in   Overcast
12:56 PM 53.1 °F 46.9 °F 80% 30.33 in 7.0 mi North 3.5 mph - N/A   Overcast
1:23 PM 53.6 °F 46.4 °F 77% 30.32 in 4.0 mi Calm Calm - 0.00 in Rain Light Rain
1:56 PM 53.1 °F 46.9 °F 80% 30.32 in 6.0 mi Calm Calm - 0.00 in   Haze
2:56 PM 53.1 °F 48.0 °F 83% 30.32 in 5.0 mi Calm Calm - N/A   Haze
3:56 PM 53.1 °F 50.0 °F 89% 30.32 in 4.0 mi NNW 8.1 mph - N/A   Overcast
4:56 PM 53.1 °F 50.0 °F 89% 30.33 in 4.0 mi North 5.8 mph - 0.00 in   Overcast
5:15 PM 53.6 °F 50.0 °F 88% 30.33 in 4.0 mi North 3.5 mph - N/A   Overcast
5:56 PM 53.1 °F 50.0 °F 89% 30.35 in 5.0 mi Calm Calm - N/A   Overcast
6:56 PM 53.1 °F 48.9 °F 86% 30.34 in 6.0 mi SE 3.5 mph - N/A   Mostly Cloudy
7:03 PM 53.6 °F 48.2 °F 82% 30.34 in 5.0 mi Calm Calm - N/A   Overcast
7:56 PM 54.0 °F 48.9 °F 83% 30.34 in 6.0 mi Calm Calm - N/A   Overcast
8:56 PM 53.1 °F 51.1 °F 93% 30.35 in 4.0 mi North 4.6 mph - N/A   Overcast
9:35 PM 51.8 °F 51.8 °F 100% 30.35 in 5.0 mi Calm Calm - N/A   Scattered Clouds
9:56 PM 52.0 °F 51.1 °F 97% 30.35 in 5.0 mi NE 4.6 mph - N/A   Mostly Cloudy
10:56 PM 52.0 °F 51.1 °F 97% 30.34 in 5.0 mi Calm Calm - N/A   Partly Cloudy
11:56 PM 52.0 °F 51.1 °F 97% 30.33 in 5.0 mi Calm Calm - N/A   Mostly Cloudy