San Francisco, CA

5:46 AM PDT on May 27, 2018 (GMT -0700)
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Weather History for KSFO - April, 2013

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Tuesday, April 30, 2013

  Actual Average Record
Temperature  
Mean Temperature 59 °F 58 °F  
Max Temperature 68 °F 66 °F 90 °F (1996)
Min Temperature 50 °F 50 °F 41 °F (1946)
Degree Days  
Heating Degree Days 6 7  
Month to date heating degree days 193 247  
Since 1 July heating degree days 2392 2368  
Cooling Degree Days 0 0  
Month to date cooling degree days 4 5  
Year to date cooling degree days 4 6  
Growing Degree Days 9 (Base 50)    
Moisture  
Dew Point 43 °F    
Average Humidity 58    
Maximum Humidity 80    
Minimum Humidity 35    
Precipitation  
Precipitation 0.00 in 0.03 in 0.71 in (1983)
Month to date precipitation 0.47 1.29  
Year to date precipitation 1.83 12.50  
Since 1 July precipitation 12.83  
Sea Level Pressure  
Sea Level Pressure 29.84 in    
Wind  
Wind Speed 15 mph (WNW)    
Max Wind Speed 26 mph    
Max Gust Speed 31 mph    
Visibility 10 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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Astronomy

Apr. 30, 2013 Rise Set
Actual Time 6:14 AM PDT 7:59 PM PDT
Civil Twilight 5:46 AM PDT 8:27 PM PDT
Nautical Twilight 5:12 AM PDT 9:01 PM PDT
Astronomical Twilight 4:36 AM PDT 9:37 PM PDT
Moon 12:25 AM PDT (4/30) 10:50 AM PDT (4/30)
Length of Visible Light 14h 40m
Length of Day
13h 44m
Waning Gibbous, 69% of the Moon is Illuminated
Apr 30
Waning Gibbous
May 2
Last Quarter
May 9
New
May 17
First Quarter
May 24
Full

Hourly Weather History & Observations

Time (PDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 52.0 °F 44.1 °F 74% 29.83 in 10.0 mi West 23.0 mph - N/A   Partly Cloudy
1:56 AM 51.1 °F 44.1 °F 77% 29.82 in 10.0 mi WNW 16.1 mph - N/A   Clear
2:56 AM 51.1 °F 44.1 °F 77% 29.81 in 10.0 mi WNW 15.0 mph - N/A   Clear
3:56 AM 51.1 °F 44.1 °F 77% 29.82 in 8.0 mi WNW 18.4 mph - N/A   Clear
4:56 AM 51.1 °F 45.0 °F 80% 29.82 in 8.0 mi WNW 10.4 mph - N/A   Clear
5:56 AM 50.0 °F 44.1 °F 80% 29.82 in 9.0 mi West 9.2 mph - N/A   Partly Cloudy
6:56 AM 51.1 °F 45.0 °F 80% 29.85 in 9.0 mi WNW 9.2 mph - N/A   Mostly Cloudy
7:56 AM 54.0 °F 46.0 °F 75% 29.85 in 8.0 mi Calm Calm - N/A   Mostly Cloudy
8:56 AM 57.9 °F 46.0 °F 65% 29.86 in 9.0 mi WNW 15.0 mph - N/A   Scattered Clouds
9:56 AM 61.0 °F 45.0 °F 56% 29.87 in 10.0 mi NW 8.1 mph - N/A   Mostly Cloudy
10:56 AM 64.0 °F 45.0 °F 50% 29.87 in 10.0 mi WNW 13.8 mph - N/A   Mostly Cloudy
11:56 AM 66.0 °F 45.0 °F 47% 29.87 in 10.0 mi WNW 17.3 mph - N/A   Scattered Clouds
12:56 PM 66.0 °F 44.1 °F 45% 29.86 in 10.0 mi WNW 18.4 mph - N/A   Scattered Clouds
1:56 PM 64.0 °F 43.0 °F 46% 29.85 in 10.0 mi WNW 21.9 mph - N/A   Scattered Clouds
2:56 PM 66.0 °F 41.0 °F 40% 29.84 in 10.0 mi WNW 24.2 mph - N/A   Partly Cloudy
3:56 PM 68.0 °F 39.9 °F 36% 29.83 in 10.0 mi WNW 24.2 mph 31.1 mph N/A   Scattered Clouds
4:56 PM 66.9 °F 41.0 °F 39% 29.82 in 10.0 mi WNW 20.7 mph - N/A   Scattered Clouds
5:56 PM 64.9 °F 41.0 °F 42% 29.82 in 10.0 mi West 21.9 mph - N/A   Clear
6:56 PM 63.0 °F 41.0 °F 45% 29.81 in 10.0 mi West 17.3 mph - N/A   Scattered Clouds
7:56 PM 59.0 °F 42.1 °F 53% 29.81 in 10.0 mi WNW 12.7 mph 21.9 mph N/A   Scattered Clouds
8:56 PM 57.0 °F 42.1 °F 57% 29.83 in 10.0 mi WNW 8.1 mph - N/A   Partly Cloudy
9:56 PM 57.9 °F 42.1 °F 56% 29.85 in 10.0 mi West 6.9 mph - N/A   Clear
10:56 PM 61.0 °F 44.1 °F 54% 29.85 in 10.0 mi SSW 5.8 mph - N/A   Clear
11:56 PM 68.0 °F 27.0 °F 21% 29.86 in 10.0 mi NW 3.5 mph - N/A   Clear