San Francisco, CA

4:20 AM PST on November 21, 2017 (GMT -0800)
San Francisco International

Weather History for KSFO - January, 1998

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Saturday, January 10, 1998

  Actual Average Record
Temperature  
Mean Temperature 54 °F 50 °F  
Max Temperature 57 °F 56 °F 68 °F (1953)
Min Temperature 51 °F 44 °F 29 °F (1949)
Degree Days  
Heating Degree Days 11 15  
Month to date heating degree days 150  
Since 1 July heating degree days 1160  
Cooling Degree Days 0 0  
Month to date cooling degree days 0  
Year to date cooling degree days 0  
Growing Degree Days 4 (Base 50)    
Moisture  
Dew Point 54 °F    
Average Humidity 97    
Maximum Humidity 100    
Minimum Humidity 90    
Precipitation  
Precipitation 0.42 in 0.15 in 1.82 in (2017)
Month to date precipitation 1.39  
Year to date precipitation 1.39  
Sea Level Pressure  
Sea Level Pressure 29.93 in    
Wind  
Wind Speed 8 mph (SW)    
Max Wind Speed 17 mph    
Max Gust Speed 20 mph    
Visibility 6 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Date:

Astronomy

Jan. 10, 1998 Rise Set
Actual Time 7:24 AM PST 5:09 PM PST
Civil Twilight 6:55 AM PST 5:38 PM PST
Nautical Twilight 6:23 AM PST 6:11 PM PST
Astronomical Twilight 5:51 AM PST 6:42 PM PST
Moon 3:46 PM PST (1/10) 5:21 AM PST (1/10)
Length of Visible Light 10h 43m
Length of Day
9h 45m
Waxing Gibbous, 96% of the Moon is Illuminated
Jan 10
Waxing Gibbous
Jan 12
Full
Jan 20
Last Quarter
Jan 27
New
Feb 3
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 52.0 °F 52.0 °F 100% 29.78 in 10.0 mi SSE 5.8 mph - 0.00 in   Mostly Cloudy
1:56 AM 51.1 °F 51.1 °F 100% 29.80 in 10.0 mi SE 5.8 mph - 0.00 in   Mostly Cloudy
2:56 AM 51.1 °F 51.1 °F 100% 29.81 in 10.0 mi South 4.6 mph - 0.00 in   Mostly Cloudy
3:56 AM 52.0 °F 52.0 °F 100% 29.81 in 10.0 mi SE 4.6 mph - 0.02 in   Mostly Cloudy
4:56 AM 52.0 °F 52.0 °F 100% 29.81 in 10.0 mi ESE 8.1 mph - 0.01 in Rain Light Rain
5:56 AM 52.0 °F 52.0 °F 100% 29.82 in 5.0 mi ESE 9.2 mph - 0.06 in Rain Rain
6:19 AM 51.8 °F 51.8 °F 100% 29.83 in 2.5 mi ESE 11.5 mph - 0.06 in Rain Light Rain
6:56 AM 52.0 °F 52.0 °F 100% 29.84 in 2.5 mi ESE 6.9 mph - 0.09 in Rain Light Rain
7:56 AM 53.1 °F 53.1 °F 100% 29.86 in 3.0 mi Variable 4.6 mph - 0.05 in Rain Light Rain
8:14 AM 53.6 °F 53.6 °F 100% 29.86 in 3.0 mi SE 3.5 mph - 0.00 in Rain Light Rain
8:56 AM 54.0 °F 54.0 °F 100% 29.89 in 5.0 mi South 4.6 mph - 0.01 in Rain Light Rain
9:03 AM 55.4 °F 53.6 °F 94% 29.89 in 3.0 mi SE 4.6 mph - 0.00 in Rain Light Rain
9:56 AM 55.0 °F 55.0 °F 100% 29.91 in 2.0 mi ESE 3.5 mph - 0.02 in Rain Light Rain
10:56 AM 57.0 °F 55.9 °F 96% 29.93 in 2.5 mi WSW 13.8 mph - 0.02 in Rain Light Rain
11:56 AM 57.0 °F 55.9 °F 96% 29.92 in 3.0 mi WSW 17.3 mph - 0.02 in Rain Light Rain
12:25 PM 57.2 °F 55.4 °F 94% 29.91 in 10.0 mi WSW 13.8 mph 19.6 mph 0.00 in   Overcast
12:56 PM 57.9 °F 55.9 °F 93% 29.92 in 9.0 mi WSW 12.7 mph - 0.01 in Rain Light Rain
1:56 PM 57.9 °F 55.0 °F 90% 29.92 in 10.0 mi SW 12.7 mph - 0.00 in   Mostly Cloudy
2:56 PM 57.9 °F 55.0 °F 90% 29.94 in 10.0 mi SW 10.4 mph - N/A   Mostly Cloudy
3:56 PM 55.9 °F 55.0 °F 97% 29.96 in 3.0 mi WSW 11.5 mph - 0.01 in Rain Light Rain
4:11 PM 55.4 °F 55.4 °F 100% 29.96 in 4.0 mi WSW 12.7 mph - 0.00 in Rain Light Rain
4:28 PM 55.4 °F 55.4 °F 100% 29.97 in 2.5 mi West 9.2 mph - 0.00 in Rain Light Rain
4:35 PM 55.4 °F 55.4 °F 100% 29.97 in 3.0 mi West 9.2 mph - 0.01 in Rain Light Rain
4:49 PM 55.4 °F 55.4 °F 100% 29.97 in 8.0 mi WSW 15.0 mph - 0.01 in Rain Light Rain
4:56 PM 55.9 °F 55.0 °F 97% 29.98 in 7.0 mi West 13.8 mph - 0.01 in Rain Light Rain
5:56 PM 55.9 °F 54.0 °F 93% 30.00 in 8.0 mi West 11.5 mph - 0.01 in   Mostly Cloudy
6:56 PM 55.9 °F 54.0 °F 93% 30.03 in 8.0 mi WSW 10.4 mph 19.6 mph 0.02 in Rain Light Rain
7:45 PM 55.4 °F 53.6 °F 94% 30.04 in 9.0 mi West 8.1 mph - 0.04 in Rain Light Rain
7:56 PM 55.9 °F 54.0 °F 93% 30.04 in 9.0 mi WSW 10.4 mph - 0.04 in   Overcast
8:56 PM 55.0 °F 53.1 °F 93% 30.06 in 10.0 mi West 11.5 mph - 0.00 in Rain Light Rain
9:56 PM 54.0 °F 53.1 °F 97% 30.08 in 8.0 mi West 9.2 mph - 0.01 in Rain Light Rain
10:56 PM 55.0 °F 53.1 °F 93% 30.08 in 9.0 mi SW 6.9 mph - 0.01 in   Mostly Cloudy
11:56 PM 54.0 °F 53.1 °F 97% 30.09 in 7.0 mi West 9.2 mph - N/A   Mostly Cloudy