Weather History for San Francisco, CA

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Wednesday, January 8, 2014

  Actual Average Record
Temperature  
Mean Temperature 56 °F 50 °F  
Max Temperature 59 °F 56 °F 70 °F (1962)
Min Temperature 52 °F 44 °F 30 °F (1955)
Degree Days  
Heating Degree Days 9 15  
Month to date heating degree days 92 120  
Since 1 July heating degree days 1060 1130  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Growing Degree Days 5 (Base 50)    
Moisture  
Dew Point 48 °F    
Average Humidity 79    
Maximum Humidity 86    
Minimum Humidity 72    
Precipitation  
Precipitation 0.01 in 0.14 in 1.33 in (1979)
Month to date precipitation 0.01 1.10  
Year to date precipitation 0.01 1.10  
Since 1 July precipitation 1.50 8.67  
Sea Level Pressure  
Sea Level Pressure 30.20 in    
Wind  
Wind Speed 9 mph (West)    
Max Wind Speed 20 mph    
Max Gust Speed 24 mph    
Visibility 9 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Jan. 08, 2014 Rise Set
Actual Time 7:24 AM PST 5:08 PM PST
Civil Twilight 6:55 AM PST 5:37 PM PST
Nautical Twilight 6:23 AM PST 6:09 PM PST
Astronomical Twilight 5:51 AM PST 6:41 PM PST
Moon 12:00 PM PST (1/8) 12:40 AM PST (1/8)
Length of Visible Light 10h 41m
Length of Day
9h 43m
First Quarter, 57% of the Moon is Illuminated
Jan 8
First Quarter
Jan 15
Full
Jan 23
Last Quarter
Jan 30
New
Feb 6
First 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 55.0 °F 51.1 °F 86% 30.19 in 4.0 mi West 5.8 mph - 0.00 in   Light Drizzle
1:56 AM 55.0 °F 51.1 °F 86% 30.19 in 8.0 mi Calm Calm - 0.00 in   Light Drizzle
2:56 AM 54.0 °F 50.0 °F 86% 30.19 in 3.0 mi NW 5.8 mph - 0.01 in   Light Drizzle
3:56 AM 54.0 °F 50.0 °F 86% 30.19 in 10.0 mi West 8.1 mph - 0.00 in   Overcast
4:56 AM 54.0 °F 48.9 °F 83% 30.19 in 10.0 mi West 9.2 mph - 0.00 in   Light Drizzle
5:56 AM 53.1 °F 48.9 °F 86% 30.21 in 6.0 mi West 11.5 mph - 0.00 in   Light Drizzle
6:56 AM 53.1 °F 48.0 °F 83% 30.21 in 10.0 mi NW 8.1 mph - 0.00 in   Light Drizzle
7:56 AM 53.1 °F 48.0 °F 83% 30.20 in 10.0 mi West 8.1 mph - 0.00 in   Mostly Cloudy
8:29 AM 53.6 °F 48.2 °F 82% 30.21 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
8:56 AM 54.0 °F 48.0 °F 80% 30.22 in 10.0 mi WNW 4.6 mph - N/A   Mostly Cloudy
9:56 AM 54.0 °F 48.9 °F 83% 30.24 in 9.0 mi WNW 6.9 mph - N/A   Overcast
10:56 AM 54.0 °F 48.9 °F 83% 30.24 in 10.0 mi West 10.4 mph - N/A   Overcast
11:56 AM 55.9 °F 48.9 °F 77% 30.22 in 10.0 mi West 11.5 mph - N/A   Mostly Cloudy
12:36 PM 59.0 °F 48.2 °F 67% 30.18 in 10.0 mi West 12.7 mph 18.4 mph N/A   Mostly Cloudy
12:56 PM 57.0 °F 48.0 °F 72% 30.18 in 10.0 mi West 10.4 mph - N/A   Mostly Cloudy
1:56 PM 55.9 °F 48.0 °F 75% 30.16 in 10.0 mi West 10.4 mph - N/A   Mostly Cloudy
2:56 PM 55.0 °F 48.0 °F 77% 30.17 in 10.0 mi West 13.8 mph - N/A   Overcast
3:56 PM 54.0 °F 48.9 °F 83% 30.18 in 10.0 mi West 12.7 mph - N/A   Mostly Cloudy
4:44 PM 53.6 °F 48.2 °F 82% 30.18 in 10.0 mi West 17.3 mph - N/A   Mostly Cloudy
4:56 PM 54.0 °F 48.0 °F 80% 30.18 in 10.0 mi West 13.8 mph - N/A   Mostly Cloudy
5:15 PM 53.6 °F 48.2 °F 82% 30.18 in 10.0 mi West 16.1 mph - N/A   Mostly Cloudy
5:56 PM 54.0 °F 48.0 °F 80% 30.19 in 10.0 mi West 16.1 mph - N/A   Mostly Cloudy
6:56 PM 55.0 °F 48.0 °F 77% 30.19 in 10.0 mi WNW 10.4 mph - N/A   Mostly Cloudy
7:56 PM 54.0 °F 48.0 °F 80% 30.22 in 10.0 mi WNW 6.9 mph - N/A   Mostly Cloudy
8:43 PM 53.6 °F 48.2 °F 82% 30.22 in 10.0 mi WNW 6.9 mph - N/A   Mostly Cloudy
8:56 PM 54.0 °F 48.0 °F 80% 30.22 in 10.0 mi WNW 8.1 mph - N/A   Mostly Cloudy
9:56 PM 53.1 °F 46.9 °F 80% 30.21 in 10.0 mi WNW 8.1 mph - N/A   Mostly Cloudy
10:45 PM 51.8 °F 46.4 °F 82% 30.21 in 10.0 mi West 6.9 mph - N/A   Mostly Cloudy
10:56 PM 53.1 °F 48.0 °F 83% 30.22 in 10.0 mi West 10.4 mph - N/A   Mostly Cloudy
11:56 PM 53.1 °F 48.0 °F 83% 30.21 in 10.0 mi West 13.8 mph - N/A   Mostly Cloudy