San Francisco, CA

9:14 AM PDT on June 25, 2017 (GMT -0700)
San Francisco International

Weather History for KSFO - January, 2000

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Monday, January 31, 2000

  Actual Average Record
Temperature  
Mean Temperature 52 °F 51 °F  
Max Temperature 55 °F 58 °F 74 °F (2015)
Min Temperature 50 °F 45 °F 32 °F (1950)
Degree Days  
Heating Degree Days 12 14  
Month to date heating degree days 455  
Since 1 July heating degree days 1467  
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 48 °F    
Average Humidity 86    
Maximum Humidity 96    
Minimum Humidity 66    
Precipitation  
Precipitation 0.04 in 0.14 in 1.99 in (1963)
Month to date precipitation 4.19  
Year to date precipitation 4.19  
Sea Level Pressure  
Sea Level Pressure 30.27 in    
Wind  
Wind Speed 5 mph (SE)    
Max Wind Speed 13 mph    
Max Gust Speed 16 mph    
Visibility 8 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. 31, 2000 Rise Set
Actual Time 7:14 AM PST 5:31 PM PST
Civil Twilight 6:46 AM PST 5:59 PM PST
Nautical Twilight 6:15 AM PST 6:30 PM PST
Astronomical Twilight 5:44 AM PST 7:01 PM PST
Moon 3:28 AM PST (1/31) 1:43 PM PST (1/31)
Length of Visible Light 11h 12m
Length of Day
10h 17m
Waning Crescent, 19% of the Moon is Illuminated
Jan 31
Waning Crescent
Feb 5
New
Feb 12
First Quarter
Feb 19
Full
Feb 26
Last 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 51.1 °F 46.9 °F 86% 30.20 in 10.0 mi SSW 4.6 mph - N/A   Scattered Clouds
1:56 AM 51.1 °F 46.9 °F 86% 30.22 in 10.0 mi Calm Calm - N/A   Scattered Clouds
2:56 AM 51.1 °F 46.0 °F 83% 30.23 in 10.0 mi SSE 6.9 mph - N/A   Mostly Cloudy
3:56 AM 50.0 °F 46.0 °F 86% 30.22 in 10.0 mi South 5.8 mph - N/A   Overcast
4:56 AM 50.0 °F 46.0 °F 86% 30.23 in 10.0 mi Calm Calm - 0.01 in   Overcast
5:56 AM 50.0 °F 46.0 °F 86% 30.24 in 10.0 mi Calm Calm - N/A   Overcast
6:56 AM 50.0 °F 46.9 °F 89% 30.25 in 10.0 mi SSE 4.6 mph - 0.01 in Rain Light Rain
7:56 AM 51.1 °F 46.0 °F 83% 30.27 in 10.0 mi ESE 3.5 mph - 0.00 in   Overcast
8:56 AM 52.0 °F 44.1 °F 74% 30.26 in 10.0 mi ESE 5.8 mph - N/A   Overcast
9:56 AM 52.0 °F 46.9 °F 83% 30.28 in 10.0 mi East 9.2 mph - N/A   Overcast
10:56 AM 53.1 °F 45.0 °F 74% 30.27 in 10.0 mi ESE 12.7 mph - N/A   Overcast
11:56 AM 55.0 °F 44.1 °F 67% 30.27 in 10.0 mi SE 9.2 mph - N/A   Overcast
12:56 PM 54.0 °F 43.0 °F 66% 30.25 in 10.0 mi SSE 6.9 mph 16.1 mph N/A   Overcast
1:56 PM 53.1 °F 45.0 °F 74% 30.25 in 9.0 mi SE 11.5 mph - N/A   Overcast
2:56 PM 52.0 °F 46.9 °F 83% 30.25 in 10.0 mi SSE 6.9 mph - N/A   Overcast
3:34 PM 53.6 °F 48.2 °F 82% 30.25 in 9.0 mi South 6.9 mph - N/A   Overcast
3:56 PM 53.1 °F 48.0 °F 83% 30.25 in 9.0 mi South 6.9 mph - N/A   Overcast
4:56 PM 53.1 °F 48.9 °F 86% 30.27 in 7.0 mi North 6.9 mph - N/A   Overcast
5:17 PM 51.8 °F 50.0 °F 94% 30.28 in 2.0 mi NNE 9.2 mph - 0.00 in Rain Light Rain
5:21 PM 51.8 °F 50.0 °F 94% 30.28 in 1.8 mi NE 5.8 mph - 0.00 in Rain Light Rain
5:47 PM 51.8 °F 50.0 °F 94% 30.28 in 2.0 mi East 4.6 mph - 0.01 in   Overcast
5:56 PM 51.1 °F 50.0 °F 96% 30.28 in 2.0 mi ESE 6.9 mph - 0.01 in   Overcast
6:03 PM 51.8 °F 50.0 °F 94% 30.28 in 4.0 mi SE 4.6 mph - N/A   Overcast
6:13 PM 51.8 °F 50.0 °F 94% 30.29 in 2.0 mi SE 4.6 mph - N/A   Overcast
6:56 PM 51.1 °F 50.0 °F 96% 30.30 in 4.0 mi South 4.6 mph - 0.01 in   Overcast
7:56 PM 52.0 °F 50.0 °F 93% 30.31 in 10.0 mi Calm Calm - N/A   Overcast
8:56 PM 52.0 °F 50.0 °F 93% 30.32 in 8.0 mi South 3.5 mph - N/A   Overcast
9:56 PM 52.0 °F 50.0 °F 93% 30.33 in 10.0 mi South 3.5 mph - N/A   Overcast
10:56 PM 52.0 °F 50.0 °F 93% 30.34 in 9.0 mi Calm Calm - N/A   Overcast
11:56 PM 52.0 °F 50.0 °F 93% 30.35 in 10.0 mi North 3.5 mph - N/A   Overcast