Weather History for KSFO - October, 1990

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Thursday, October 11, 1990

  Actual Average Record
Temperature  
Mean Temperature 66 °F 63 °F  
Max Temperature 81 °F 72 °F 88 °F (2010)
Min Temperature 52 °F 54 °F 46 °F (1955)
Degree Days  
Heating Degree Days 0 3  
Month to date heating degree days 31  
Since 1 July heating degree days 197  
Cooling Degree Days 2 1  
Month to date cooling degree days 11  
Year to date cooling degree days 152  
Growing Degree Days 16 (Base 50)    
Moisture  
Dew Point 49 °F    
Average Humidity 65    
Maximum Humidity 97    
Minimum Humidity 18    
Precipitation  
Precipitation 0.00 in 0.02 in 2.38 in (1962)
Month to date precipitation 0.18  
Year to date precipitation 13.47  
Since 1 July precipitation 0.39  
Sea Level Pressure  
Sea Level Pressure 29.97 in    
Wind  
Wind Speed 8 mph (WNW)    
Max Wind Speed 18 mph    
Max Gust Speed -    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Oct. 11, 1990 Rise Set
Actual Time 7:13 AM PDT 6:37 PM PDT
Civil Twilight 6:47 AM PDT 7:04 PM PDT
Nautical Twilight 6:17 AM PDT 7:34 PM PDT
Astronomical Twilight 5:46 AM PDT 8:04 PM PDT
Moon No Moon Rise 2:58 PM PDT (10/11)
Length of Visible Light 12h 16m
Length of Day
11h 24m
Last Quarter, 43% of the Moon is Illuminated
Oct 11
Last Quarter
Oct 18
New
Oct 26
First Quarter
Nov 2
Full
Nov 9
Last Quarter

Hourly Weather History & Observations

Time (PDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:00 AM 55.0 °F 52.0 °F 89% 29.93 in 10.0 mi WNW 9.2 mph - N/A   Clear
1:00 AM 55.0 °F 52.0 °F 89% 29.93 in 10.0 mi WNW 10.4 mph - N/A   Clear
2:00 AM 54.0 °F 53.1 °F 97% 29.94 in 10.0 mi West 8.1 mph - N/A   Clear
3:00 AM 53.1 °F 52.0 °F 96% 29.94 in 10.0 mi West 6.9 mph - N/A   Clear
4:00 AM 52.0 °F 46.9 °F 83% 29.93 in 10.0 mi WSW 3.5 mph - N/A   Clear
5:00 AM 52.0 °F 48.0 °F 86% 29.94 in 10.0 mi WNW 6.9 mph - N/A   Clear
6:00 AM 53.1 °F 48.9 °F 86% 29.94 in 10.0 mi WSW 3.5 mph - N/A   Clear
7:00 AM 54.0 °F 51.1 °F 90% 29.95 in 10.0 mi South 3.5 mph - N/A   Clear
8:00 AM 55.0 °F 51.1 °F 86% 29.97 in 8.0 mi Calm Calm - N/A   Clear
9:00 AM 59.0 °F 54.0 °F 83% 29.99 in 7.0 mi South 3.5 mph - N/A   Clear
10:00 AM 64.9 °F 55.9 °F 73% 30.00 in 10.0 mi ENE 5.8 mph - N/A   Clear
11:00 AM 70.0 °F 53.1 °F 55% 30.00 in 10.0 mi East 5.8 mph - N/A   Clear
12:00 PM 73.0 °F 53.1 °F 49% 30.00 in 10.0 mi ENE 4.6 mph - N/A   Clear
1:00 PM 73.9 °F 52.0 °F 46% 30.00 in 10.0 mi North 5.8 mph - N/A   Clear
2:00 PM 81.0 °F 34.0 °F 18% 29.98 in 10.0 mi NNW 4.6 mph - N/A   Clear
3:00 PM 81.0 °F 42.1 °F 25% 29.96 in 10.0 mi NNW 10.4 mph - N/A   Clear
4:00 PM 79.0 °F 42.1 °F 27% 29.96 in 15.0 mi West 16.1 mph - N/A   Clear
5:00 PM 73.9 °F 44.1 °F 34% 29.95 in 15.0 mi West 17.3 mph - N/A   Clear
6:00 PM 72.0 °F 42.1 °F 34% 29.95 in 25.0 mi WNW 17.3 mph - N/A   Clear
7:00 PM 64.9 °F 46.9 °F 52% 29.96 in 10.0 mi West 16.1 mph - N/A   Scattered Clouds
8:00 PM 62.1 °F 46.9 °F 58% 29.97 in 10.0 mi WNW 18.4 mph - N/A   Clear
9:00 PM 60.1 °F 48.9 °F 67% 29.98 in 10.0 mi WNW 13.8 mph - N/A   Clear
10:00 PM 59.0 °F 48.9 °F 69% 29.99 in 10.0 mi WNW 11.5 mph - N/A   Clear
11:00 PM 57.0 °F 50.0 °F 77% 30.00 in 10.0 mi WNW 12.7 mph - N/A   Clear