San Francisco, CA

6:20 AM PST on February 12, 2016 (GMT -0800)
San Francisco International

Weather History for KSFO - January, 2001

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Thursday, January 4, 2001

  Actual Average Record
Temperature  
Mean Temperature 50 °F 50 °F  
Max Temperature 57 °F 56 °F 66 °F (2014)
Min Temperature 42 °F 44 °F 29 °F (1949)
Degree Days  
Heating Degree Days 16 15  
Month to date heating degree days 60  
Since 1 July heating degree days 1070  
Cooling Degree Days 0 0  
Month to date cooling degree days 0  
Year to date cooling degree days 0  
Moisture  
Dew Point 45 °F    
Average Humidity 83    
Maximum Humidity 100    
Minimum Humidity 62    
Precipitation  
Precipitation 0.00 in 0.14 in 5.59 in (1982)
Month to date precipitation 0.55  
Year to date precipitation 0.55  
Sea Level Pressure  
Sea Level Pressure 30.23 in    
Wind  
Wind Speed 4 mph (NE)    
Max Wind Speed 8 mph    
Max Gust Speed -    
Visibility 6 miles    
Events      
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. 04, 2001 Rise Set
Actual Time 7:24 AM PST 5:04 PM PST
Civil Twilight 6:55 AM PST 5:33 PM PST
Nautical Twilight 6:23 AM PST 6:06 PM PST
Astronomical Twilight 5:51 AM PST 6:38 PM PST
Moon 1:10 PM PST (1/4) 1:39 AM PST (1/4)
Length of Visible Light 10h 37m
Length of Day
9h 39m
Waxing Gibbous, 69% of the Moon is Illuminated
Jan 4
Waxing Gibbous
Jan 9
Full
Jan 16
Last Quarter
Jan 24
New
Feb 1
First Quarter

Hourly Weather History & Observations

Time (PST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 45.0 °F 42.6 °F 44.1 °F 97% 30.29 in 5.0 mi SSW 4.6 mph - N/A   Clear
1:56 AM 48.9 °F - 48.0 °F 97% 30.29 in 5.0 mi North 6.9 mph - N/A   Clear
2:56 AM 42.1 °F - 39.9 °F 92% 30.28 in 5.0 mi Calm Calm - N/A   Clear
3:56 AM 48.9 °F - 46.9 °F 93% 30.28 in 7.0 mi North 8.1 mph - N/A   Scattered Clouds
4:56 AM 44.1 °F 42.5 °F 42.1 °F 93% 30.27 in 5.0 mi SSE 3.5 mph - N/A   Scattered Clouds
5:56 AM 42.1 °F 39.2 °F 42.1 °F 100% 30.26 in 7.0 mi South 4.6 mph - N/A   Scattered Clouds
6:56 AM 45.0 °F 43.5 °F 45.0 °F 100% 30.26 in 7.0 mi East 3.5 mph - N/A   Partly Cloudy
7:56 AM 48.9 °F - 46.9 °F 93% 30.27 in 6.0 mi North 4.6 mph - N/A   Mostly Cloudy
8:56 AM 51.1 °F - 48.0 °F 89% 30.28 in 6.0 mi North 6.9 mph - N/A   Mostly Cloudy
9:56 AM 51.1 °F - 48.0 °F 89% 30.28 in 5.0 mi East 4.6 mph - N/A   Scattered Clouds
10:56 AM 54.0 °F - 48.0 °F 80% 30.27 in 5.0 mi North 5.8 mph - N/A   Haze
11:56 AM 54.0 °F - 48.0 °F 80% 30.24 in 6.0 mi North 3.5 mph - N/A   Haze
12:56 PM 54.0 °F - 50.0 °F 86% 30.21 in 7.0 mi NNE 4.6 mph - N/A   Partly Cloudy
1:56 PM 55.9 °F - 48.9 °F 77% 30.18 in 7.0 mi North 5.8 mph - N/A   Partly Cloudy
2:56 PM 55.9 °F - 48.9 °F 77% 30.17 in 7.0 mi North 5.8 mph - N/A   Partly Cloudy
3:56 PM 57.0 °F - 44.1 °F 62% 30.16 in 7.0 mi Calm Calm - N/A   Clear
4:56 PM 55.9 °F - 46.0 °F 69% 30.16 in 7.0 mi Calm Calm - N/A   Clear
5:56 PM 55.9 °F - 44.1 °F 64% 30.17 in 8.0 mi Calm Calm - N/A   Clear
6:56 PM 54.0 °F - 44.1 °F 69% 30.18 in 8.0 mi South 3.5 mph - N/A   Clear
7:56 PM 52.0 °F - 43.0 °F 71% 30.20 in 7.0 mi SSE 5.8 mph - N/A   Clear
8:56 PM 53.1 °F - 42.1 °F 66% 30.20 in 7.0 mi East 3.5 mph - N/A   Clear
9:56 PM 51.1 °F - 45.0 °F 80% 30.21 in 7.0 mi Calm Calm - N/A   Clear
10:56 PM 48.9 °F - 44.1 °F 83% 30.20 in 7.0 mi Calm Calm - N/A   Clear
11:56 PM 48.0 °F - 43.0 °F 83% 30.19 in 7.0 mi Calm Calm - N/A   Clear