Half Moon Bay, CA

12:31 PM PDT on September 20, 2017 (GMT -0700)
Half Moon Bay

Weather History for KHAF - September, 2013

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Wednesday, September 4, 2013

  Actual Average Record
Temperature  
Mean Temperature 64 °F -  
Max Temperature 68 °F 67 °F 75 °F (2017)
Min Temperature 59 °F 51 °F 44 °F (2015)
Degree Days  
Heating Degree Days 2    
Growing Degree Days 14 (Base 50)    
Moisture  
Dew Point 60 °F    
Average Humidity 89    
Maximum Humidity 94    
Minimum Humidity 78    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.03 in    
Wind  
Wind Speed 9 mph (NNW)    
Max Wind Speed 17 mph    
Max Gust Speed 23 mph    
Visibility 7 miles    
Events      
Averages and records for this station are not official NWS values.
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

Sep. 04, 2013 Rise Set
Actual Time 6:43 AM PDT 7:34 PM PDT
Civil Twilight 6:16 AM PDT 8:00 PM PDT
Nautical Twilight 5:44 AM PDT 8:31 PM PDT
Astronomical Twilight 5:12 AM PDT 9:04 PM PDT
Moon 6:00 AM PDT (9/4) 6:57 PM PDT (9/4)
Length of Visible Light 13h 44m
Length of Day
12h 50m
Waning Crescent, 1% of the Moon is Illuminated
Sep 4
Waning Crescent
Sep 5
New
Sep 12
First Quarter
Sep 19
Full
Sep 26
Last Quarter

Hourly Weather History & Observations

Time (PDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:10 AM 62.6 °F 60.8 °F 94% 30.01 in 7.0 mi NNW 6.9 mph - N/A   Overcast
12:30 AM 62.6 °F 60.8 °F 94% 30.01 in 7.0 mi NW 4.6 mph - N/A   Overcast
12:50 AM 62.6 °F 60.8 °F 94% 30.01 in 7.0 mi NW 5.8 mph - N/A   Overcast
1:10 AM 62.6 °F 60.8 °F 94% 30.01 in 7.0 mi NW 4.6 mph - N/A   Overcast
1:30 AM 62.6 °F 60.8 °F 94% 30.01 in 8.0 mi NNW 5.8 mph - N/A   Overcast
1:50 AM 62.6 °F 60.8 °F 94% 30.01 in 7.0 mi North 6.9 mph - N/A   Overcast
2:10 AM 62.6 °F 59.0 °F 88% 30.01 in 8.0 mi NNW 9.2 mph - N/A   Overcast
2:30 AM 62.6 °F 59.0 °F 88% 30.01 in 8.0 mi NNW 8.1 mph - N/A   Overcast
2:50 AM 62.6 °F 59.0 °F 88% 30.01 in 7.0 mi NNW 9.2 mph - N/A   Overcast
3:10 AM 62.6 °F 59.0 °F 88% 30.01 in 7.0 mi NNW 10.4 mph - N/A   Overcast
3:30 AM 62.6 °F 59.0 °F 88% 30.01 in 8.0 mi North 10.4 mph - N/A   Overcast
3:50 AM 62.6 °F 59.0 °F 88% 30.01 in 8.0 mi NNW 8.1 mph - N/A   Overcast
4:10 AM 62.6 °F 59.0 °F 88% 30.01 in 7.0 mi North 9.2 mph - N/A   Overcast
4:35 AM 62.6 °F 59.0 °F 88% 30.01 in 8.0 mi NNW 6.9 mph - N/A   Overcast
4:50 AM 62.6 °F 59.0 °F 88% 30.01 in 8.0 mi North 8.1 mph - N/A   Overcast
5:10 AM 60.8 °F 59.0 °F 94% 30.02 in 7.0 mi NNW 9.2 mph - N/A   Overcast
5:30 AM 60.8 °F 59.0 °F 94% 30.02 in 8.0 mi North 9.2 mph - N/A   Overcast
5:50 AM 60.8 °F 59.0 °F 94% 30.02 in 7.0 mi NNW 8.1 mph - N/A   Overcast
6:10 AM 60.8 °F 59.0 °F 94% 30.02 in 8.0 mi North 5.8 mph - N/A   Overcast
6:30 AM 60.8 °F 59.0 °F 94% 30.03 in 8.0 mi NNW 4.6 mph - N/A   Overcast
6:50 AM 59.0 °F 57.2 °F 94% 30.04 in 5.0 mi Calm Calm - N/A   Overcast
7:10 AM 60.8 °F 59.0 °F 94% 30.04 in 5.0 mi NW 3.5 mph - N/A   Overcast
7:30 AM 60.8 °F 59.0 °F 94% 30.04 in 5.0 mi NW 5.8 mph - N/A   Overcast
7:50 AM 62.6 °F 59.0 °F 88% 30.05 in 7.0 mi NNW 8.1 mph - N/A   Overcast
8:15 AM 62.6 °F 59.0 °F 88% 30.05 in 7.0 mi North 6.9 mph - N/A   Overcast
8:30 AM 62.6 °F 59.0 °F 88% 30.05 in 7.0 mi NNW 9.2 mph - N/A   Overcast
8:50 AM 62.6 °F 59.0 °F 88% 30.05 in 6.0 mi NNW 10.4 mph - N/A   Overcast
9:10 AM 62.6 °F 59.0 °F 88% 30.06 in 7.0 mi North 10.4 mph - N/A   Overcast
9:30 AM 62.6 °F 59.0 °F 88% 30.06 in 7.0 mi NNW 6.9 mph - N/A   Overcast
9:50 AM 64.4 °F 59.0 °F 83% 30.06 in 9.0 mi NNW 10.4 mph - N/A   Mostly Cloudy
10:10 AM 64.4 °F 59.0 °F 83% 30.07 in 8.0 mi North 10.4 mph - N/A   Mostly Cloudy
10:30 AM 64.4 °F 59.0 °F 83% 30.07 in 9.0 mi NNW 9.2 mph - N/A   Mostly Cloudy
10:50 AM 64.4 °F 59.0 °F 83% 30.07 in 9.0 mi NNW 10.4 mph - N/A   Mostly Cloudy
11:10 AM 64.4 °F 59.0 °F 83% 30.07 in 9.0 mi NNW 10.4 mph - N/A   Partly Cloudy
11:30 AM 66.2 °F 59.0 °F 78% 30.07 in 10.0 mi NNW 10.4 mph - N/A   Partly Cloudy
11:50 AM 66.2 °F 59.0 °F 78% 30.07 in 9.0 mi NW 10.4 mph - N/A   Partly Cloudy
12:10 PM 64.4 °F 59.0 °F 83% 30.07 in 8.0 mi NNW 12.7 mph - N/A   Mostly Cloudy
12:30 PM 66.2 °F 60.8 °F 83% 30.07 in 8.0 mi NNW 11.5 mph 17.3 mph N/A   Mostly Cloudy
12:50 PM 66.2 °F 60.8 °F 83% 30.07 in 8.0 mi NNW 12.7 mph 18.4 mph N/A   Scattered Clouds
1:10 PM 66.2 °F 60.8 °F 83% 30.06 in 9.0 mi NNW 13.8 mph - N/A   Partly Cloudy
1:30 PM 68.0 °F 60.8 °F 78% 30.06 in 9.0 mi NNW 12.7 mph 19.6 mph N/A   Clear
1:50 PM 68.0 °F 62.6 °F 83% 30.06 in 9.0 mi NW 12.7 mph 19.6 mph N/A   Clear
2:15 PM 68.0 °F 62.6 °F 83% 30.05 in 9.0 mi NNW 16.1 mph 23.0 mph N/A   Clear
2:30 PM 66.2 °F 62.6 °F 88% 30.05 in 8.0 mi NNW 16.1 mph 21.9 mph N/A   Partly Cloudy
2:50 PM 66.2 °F 62.6 °F 88% 30.05 in 8.0 mi NNW 13.8 mph 20.7 mph N/A   Partly Cloudy
3:10 PM 68.0 °F 62.6 °F 83% 30.04 in 8.0 mi NNW 15.0 mph 23.0 mph N/A   Partly Cloudy
3:30 PM 68.0 °F 62.6 °F 83% 30.04 in 8.0 mi NNW 15.0 mph 21.9 mph N/A   Partly Cloudy
3:50 PM 68.0 °F 62.6 °F 83% 30.03 in 8.0 mi NNW 17.3 mph 23.0 mph N/A   Partly Cloudy
4:10 PM 66.2 °F 62.6 °F 88% 30.02 in 8.0 mi NNW 16.1 mph 21.9 mph N/A   Partly Cloudy
4:35 PM 66.2 °F 62.6 °F 88% 30.02 in 8.0 mi NNW 15.0 mph - N/A   Mostly Cloudy
4:50 PM 66.2 °F 62.6 °F 88% 30.02 in 7.0 mi NNW 12.7 mph - N/A   Mostly Cloudy
5:10 PM 66.2 °F 62.6 °F 88% 30.02 in 7.0 mi NNW 12.7 mph - N/A   Overcast
5:30 PM 66.2 °F 62.6 °F 88% 30.02 in 7.0 mi NNW 12.7 mph - N/A   Overcast
5:50 PM 64.4 °F 62.6 °F 94% 30.01 in 7.0 mi NNW 11.5 mph - N/A   Overcast
6:10 PM 64.4 °F 62.6 °F 94% 30.01 in 6.0 mi NNW 11.5 mph - N/A   Overcast
6:30 PM 64.4 °F 62.6 °F 94% 30.00 in 6.0 mi NNW 11.5 mph - N/A   Overcast
6:50 PM 64.4 °F 62.6 °F 94% 30.00 in 7.0 mi NNW 11.5 mph - N/A   Overcast
7:10 PM 64.4 °F 60.8 °F 88% 30.00 in 5.0 mi NNW 10.4 mph - N/A   Overcast
7:30 PM 64.4 °F 60.8 °F 88% 30.00 in 6.0 mi NNW 10.4 mph - N/A   Overcast
7:50 PM 62.6 °F 60.8 °F 94% 30.00 in 5.0 mi NNW 10.4 mph - N/A   Overcast
8:10 PM 62.6 °F 60.8 °F 94% 30.00 in 8.0 mi NNW 11.5 mph - N/A   Overcast
8:30 PM 62.6 °F 60.8 °F 94% 30.01 in 8.0 mi NW 11.5 mph - N/A   Overcast
8:50 PM 62.6 °F 60.8 °F 94% 30.01 in 7.0 mi NW 10.4 mph - N/A   Unknown
9:10 PM 62.6 °F 60.8 °F 94% 30.01 in 8.0 mi NW 11.5 mph - N/A   Overcast
9:30 PM 62.6 °F 60.8 °F 94% 30.01 in 7.0 mi NW 12.7 mph - N/A   Overcast
9:50 PM 62.6 °F 60.8 °F 94% 30.02 in 7.0 mi NW 10.4 mph - N/A   Overcast
10:15 PM 62.6 °F 60.8 °F 94% 30.02 in 8.0 mi NW 11.5 mph 16.1 mph N/A   Unknown
10:30 PM 62.6 °F 60.8 °F 94% 30.02 in 7.0 mi NW 8.1 mph - N/A   Unknown
10:50 PM 62.6 °F 60.8 °F 94% 30.02 in 7.0 mi NW 12.7 mph - N/A   Overcast
11:10 PM 62.6 °F 60.8 °F 94% 30.02 in 7.0 mi NW 15.0 mph - N/A   Overcast
11:35 PM 62.6 °F 60.8 °F 94% 30.02 in 7.0 mi NW 12.7 mph - N/A   Unknown
11:50 PM 62.6 °F 59.0 °F 88% 30.02 in 7.0 mi NW 10.4 mph - N/A   Unknown