Weather History for KSFO - October, 1990

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Wednesday, October 24, 1990

  Actual Average Record
Temperature  
Mean Temperature 62 °F 61 °F  
Max Temperature 73 °F 69 °F 88 °F (1959)
Min Temperature 51 °F 52 °F 41 °F (1956)
Degree Days  
Heating Degree Days 3 5  
Month to date heating degree days 83  
Since 1 July heating degree days 249  
Cooling Degree Days 0 0  
Month to date cooling degree days 20  
Year to date cooling degree days 161  
Growing Degree Days 12 (Base 50)    
Moisture  
Dew Point 50 °F    
Average Humidity 71    
Maximum Humidity 93    
Minimum Humidity 45    
Precipitation  
Precipitation 0.00 in 0.04 in 0.74 in (1998)
Month to date precipitation 0.60  
Year to date precipitation 13.89  
Since 1 July precipitation 0.81  
Sea Level Pressure  
Sea Level Pressure 30.05 in    
Wind  
Wind Speed 8 mph (NW)    
Max Wind Speed 21 mph    
Max Gust Speed -    
Visibility 9 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Oct. 24, 1990 Rise Set
Actual Time 7:26 AM PDT 6:20 PM PDT
Civil Twilight 6:59 AM PDT 6:47 PM PDT
Nautical Twilight 6:28 AM PDT 7:17 PM PDT
Astronomical Twilight 5:58 AM PDT 7:48 PM PDT
Moon 1:02 PM PDT (10/24) 10:33 PM PDT (10/24)
Length of Visible Light 11h 47m
Length of Day
10h 54m
Waxing Crescent, 31% of the Moon is Illuminated
Oct 24
Waxing Crescent
Oct 26
First Quarter
Nov 2
Full
Nov 9
Last Quarter
Nov 17
New

Hourly Weather History & Observations

Time (PDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:00 AM 52.0 °F 50.0 °F 93% 30.08 in 10.0 mi WNW 10.4 mph - N/A   Clear
1:00 AM 52.0 °F 50.0 °F 93% 30.08 in 10.0 mi West 10.4 mph - N/A   Clear
2:00 AM 51.1 °F 48.9 °F 92% 30.08 in 10.0 mi WNW 8.1 mph - N/A   Clear
3:00 AM 51.1 °F 48.0 °F 89% 30.08 in 10.0 mi WNW 11.5 mph - N/A   Clear
4:00 AM 51.1 °F 48.9 °F 92% 30.07 in 10.0 mi WNW 8.1 mph - N/A   Clear
5:00 AM 51.1 °F 46.9 °F 86% 30.06 in 10.0 mi WNW 6.9 mph - N/A   Clear
6:00 AM 51.1 °F 46.0 °F 83% 30.06 in 10.0 mi SSW 3.5 mph - N/A   Clear
7:00 AM 51.1 °F 46.9 °F 86% 30.06 in 10.0 mi Calm Calm - N/A   Clear
8:00 AM 53.1 °F 48.0 °F 83% 30.07 in 8.0 mi Calm Calm - N/A   Clear
9:00 AM 57.9 °F 51.1 °F 78% 30.08 in 8.0 mi Calm Calm - N/A   Clear
10:00 AM 62.1 °F 54.0 °F 75% 30.08 in 8.0 mi NNE 3.5 mph - N/A   Clear
11:00 AM 64.9 °F 55.9 °F 73% 30.08 in 7.0 mi NNE 4.6 mph - N/A   Clear
12:00 PM 66.9 °F 55.9 °F 68% 30.07 in 7.0 mi North 5.8 mph - N/A   Clear
1:00 PM 69.1 °F 55.9 °F 63% 30.05 in 7.0 mi NNE 5.8 mph - N/A   Clear
2:00 PM 71.1 °F 54.0 °F 55% 30.02 in 8.0 mi NNE 6.9 mph - N/A   Clear
3:00 PM 73.0 °F 52.0 °F 48% 30.01 in 8.0 mi NE 6.9 mph - N/A   Clear
4:00 PM 73.9 °F 51.1 °F 45% 30.01 in 8.0 mi WNW 17.3 mph - N/A   Clear
5:00 PM 66.0 °F 48.9 °F 54% 30.02 in 10.0 mi WNW 20.7 mph - N/A   Clear
6:00 PM 64.9 °F 48.9 °F 56% 30.00 in 10.0 mi WNW 16.1 mph - N/A   Clear
7:00 PM 63.0 °F 46.0 °F 54% 30.01 in 10.0 mi WNW 17.3 mph - N/A   Clear
8:00 PM 64.9 °F 44.1 °F 47% 30.02 in 10.0 mi West 11.5 mph - N/A   Clear
9:00 PM 64.9 °F 48.0 °F 54% 30.03 in 10.0 mi NNW 4.6 mph - N/A   Clear
10:00 PM 60.1 °F 46.0 °F 60% 30.04 in 10.0 mi WNW 5.8 mph - N/A   Clear
11:00 PM 59.0 °F 48.0 °F 67% 30.04 in 10.0 mi Calm Calm - N/A   Clear