San Francisco, CA

3:37 AM PDT on March 30, 2017 (GMT -0700)
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Weather History for KSFO - January, 2004

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Wednesday, January 7, 2004

  Actual Average Record
Temperature  
Mean Temperature 52 °F 50 °F  
Max Temperature 57 °F 56 °F 65 °F (2003)
Min Temperature 46 °F 44 °F 31 °F (1973)
Degree Days  
Heating Degree Days 14 15  
Month to date heating degree days 105  
Since 1 July heating degree days 1115  
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 44 °F    
Average Humidity 73    
Maximum Humidity 90    
Minimum Humidity 51    
Precipitation  
Precipitation 0.00 in 0.14 in 0.87 in (1956)
Month to date precipitation 0.96  
Year to date precipitation 0.96  
Sea Level Pressure  
Sea Level Pressure 30.03 in    
Wind  
Wind Speed 7 mph (SE)    
Max Wind Speed 17 mph    
Max Gust Speed -    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Date:

Astronomy

Jan. 07, 2004 Rise Set
Actual Time 7:24 AM PST 5:06 PM PST
Civil Twilight 6:55 AM PST 5:35 PM PST
Nautical Twilight 6:23 AM PST 6:08 PM PST
Astronomical Twilight 5:51 AM PST 6:39 PM PST
Moon 5:09 PM PST (1/7) 7:48 AM PST (1/7)
Length of Visible Light 10h 39m
Length of Day
9h 41m
Full, 100% of the Moon is Illuminated
Jan 7
Full
Jan 14
Last Quarter
Jan 21
New
Jan 28
First Quarter
Feb 6
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 48.0 °F 42.1 °F 80% 29.95 in 10.0 mi North - - 0.00 in   Overcast
1:56 AM 48.0 °F 42.1 °F 80% 29.97 in 10.0 mi North - - N/A   Mostly Cloudy
2:56 AM 48.9 °F 43.0 °F 80% 29.99 in 10.0 mi North - - N/A   Mostly Cloudy
3:56 AM 50.0 °F 46.0 °F 86% 29.99 in 10.0 mi North - - N/A   Overcast
4:56 AM 46.9 °F 44.1 °F 90% 29.98 in 10.0 mi North - - N/A   Mostly Cloudy
5:56 AM 50.0 °F 42.1 °F 74% 29.98 in 10.0 mi North - - N/A   Overcast
6:56 AM 51.1 °F 37.9 °F 61% 30.00 in 10.0 mi North - - N/A   Overcast
7:56 AM 53.1 °F 37.9 °F 57% 30.02 in 10.0 mi North - - N/A   Overcast
8:56 AM 54.0 °F 36.0 °F 51% 30.03 in 10.0 mi North - - N/A   Overcast
9:56 AM 54.0 °F 42.1 °F 64% 30.05 in 10.0 mi North - - N/A   Overcast
10:56 AM 54.0 °F 41.0 °F 62% 30.06 in 10.0 mi Calm Calm - N/A   Overcast
11:56 AM 55.0 °F 41.0 °F 59% 30.04 in 10.0 mi East 17.3 mph - N/A   Overcast
12:56 PM 53.1 °F 44.1 °F 71% 30.02 in 10.0 mi East 11.5 mph - N/A   Overcast
1:56 PM 53.1 °F 45.0 °F 74% 30.01 in 10.0 mi East 4.6 mph - N/A   Overcast
2:56 PM 54.0 °F 46.0 °F 75% 30.02 in 9.0 mi SE 9.2 mph - 0.00 in Rain Light Rain
3:56 PM 57.0 °F 44.1 °F 62% 30.05 in 10.0 mi West 6.9 mph - 0.00 in   Overcast
4:56 PM 55.9 °F 46.9 °F 72% 30.06 in 10.0 mi WSW 4.6 mph - N/A   Overcast
5:56 PM 54.0 °F 48.9 °F 83% 30.07 in 10.0 mi North 3.5 mph - N/A   Overcast
6:56 PM 57.0 °F 46.9 °F 69% 30.07 in 10.0 mi SSW 3.5 mph - N/A   Overcast
7:56 PM 55.9 °F 48.9 °F 77% 30.07 in 8.0 mi South 9.2 mph - N/A   Overcast
8:56 PM 55.0 °F 48.9 °F 80% 30.07 in 10.0 mi SE 10.4 mph - N/A   Overcast
9:56 PM 53.1 °F 48.9 °F 86% 30.05 in 10.0 mi SE 6.9 mph - N/A   Overcast
10:56 PM 55.9 °F 48.0 °F 75% 30.06 in 10.0 mi SSE 9.2 mph - N/A   Overcast
11:15 PM 55.4 °F 48.2 °F 77% 30.06 in 10.0 mi SE 10.4 mph - N/A   Overcast
11:56 PM 55.0 °F 48.0 °F 77% 30.08 in 10.0 mi North 10.4 mph - N/A   Mostly Cloudy