Weather History for Half Moon Bay, CA

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Monday, September 2, 2013

  Actual Average Record
Temperature  
Mean Temperature 64 °F -  
Max Temperature 69 °F 65 °F 69 °F (2013)
Min Temperature 59 °F 51 °F 46 °F (2011)
Degree Days  
Heating Degree Days 1    
Growing Degree Days 14 (Base 50)    
Moisture  
Dew Point 62 °F    
Average Humidity 92    
Maximum Humidity 100    
Minimum Humidity 78    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.96 in    
Wind  
Wind Speed 6 mph (NNW)    
Max Wind Speed 14 mph    
Max Gust Speed 18 mph    
Visibility 7 miles    
Events Fog    
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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Date:

Astronomy

Sep. 02, 2013 Rise Set
Actual Time 6:41 AM PDT 7:36 PM PDT
Civil Twilight 6:14 AM PDT 8:03 PM PDT
Nautical Twilight 5:43 AM PDT 8:35 PM PDT
Astronomical Twilight 5:10 AM PDT 9:07 PM PDT
Moon 4:05 AM PDT 5:52 PM PDT
Length of Visible Light 13h 48m
Length of Day
12h 55m
Waning Crescent, 7% of the Moon is Illuminated
Sep 2
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 62.6 °F 100% 29.95 in 10.0 mi NNW 5.8 mph - N/A   Overcast
12:30 AM 62.6 °F 62.6 °F 100% 29.95 in 10.0 mi NNW 5.8 mph - N/A   Overcast
12:50 AM 62.6 °F 60.8 °F 94% 29.95 in 10.0 mi NW 6.9 mph - N/A   Overcast
1:10 AM 62.6 °F 60.8 °F 94% 29.95 in 10.0 mi NW 6.9 mph - N/A   Overcast
1:30 AM 62.6 °F 60.8 °F 94% 29.95 in 9.0 mi NW 9.2 mph - N/A   Overcast
1:50 AM 62.6 °F 60.8 °F 94% 29.95 in 7.0 mi NNW 6.9 mph - N/A   Overcast
2:10 AM 60.8 °F 60.8 °F 100% 29.95 in 0.5 mi NNW 8.1 mph - N/A Fog Fog
2:30 AM 60.8 °F 60.8 °F 100% 29.95 in 0.5 mi NNW 4.6 mph - N/A Fog Fog
2:50 AM 60.8 °F 60.8 °F 100% 29.94 in 0.8 mi NNW 4.6 mph - N/A   Overcast
3:10 AM 60.8 °F 60.8 °F 100% 29.94 in 1.5 mi NW 3.5 mph - N/A   Overcast
3:30 AM 60.8 °F 60.8 °F 100% 29.94 in 5.0 mi Calm Calm - N/A   Overcast
3:50 AM 62.6 °F 62.6 °F 100% 29.94 in 10.0 mi Calm Calm - N/A   Overcast
4:10 AM 62.6 °F 62.6 °F 100% 29.94 in 8.0 mi Calm Calm - N/A   Overcast
4:30 AM 60.8 °F 60.8 °F 100% 29.94 in 7.0 mi South 3.5 mph - N/A   Overcast
4:50 AM 62.6 °F 60.8 °F 94% 29.93 in 9.0 mi NW 5.8 mph - N/A   Overcast
5:10 AM 60.8 °F 60.8 °F 100% 29.93 in 9.0 mi NW 4.6 mph - N/A   Overcast
5:30 AM 60.8 °F 60.8 °F 100% 29.94 in 8.0 mi WNW 3.5 mph - N/A   Overcast
5:50 AM 60.8 °F 60.8 °F 100% 29.94 in 6.0 mi WNW 3.5 mph - N/A   Overcast
6:10 AM 60.8 °F 60.8 °F 100% 29.95 in 7.0 mi Calm Calm - N/A   Overcast
6:30 AM 59.0 °F 59.0 °F 100% 29.95 in 5.0 mi Calm Calm - N/A   Overcast
6:50 AM 59.0 °F 59.0 °F 100% 29.95 in 3.0 mi Calm Calm - N/A   Overcast
7:10 AM 60.8 °F 60.8 °F 100% 29.96 in 2.5 mi Calm Calm - N/A   Overcast
7:30 AM 60.8 °F 60.8 °F 100% 29.96 in 2.5 mi Calm Calm - N/A   Overcast
7:50 AM 60.8 °F 60.8 °F 100% 29.97 in 3.0 mi Calm Calm - N/A   Overcast
8:10 AM 60.8 °F 60.8 °F 100% 29.97 in 3.0 mi Calm Calm - N/A   Overcast
8:30 AM 62.6 °F 60.8 °F 94% 29.98 in 4.0 mi Calm Calm - N/A   Overcast
8:50 AM 62.6 °F 62.6 °F 100% 29.98 in 5.0 mi Calm Calm - N/A   Overcast
9:10 AM 62.6 °F 62.6 °F 100% 29.98 in 7.0 mi Calm Calm - N/A   Overcast
9:30 AM - - N/A% - - North - - N/A   Unknown
9:50 AM 64.4 °F 62.6 °F 94% 29.98 in 1.8 mi NW 4.6 mph - N/A   Mist
10:10 AM 64.4 °F 62.6 °F 94% - 3.0 mi North - - N/A   Overcast
10:30 AM 64.4 °F 64.4 °F 100% 29.99 in 9.0 mi NW 4.6 mph - N/A   Overcast
10:50 AM 66.2 °F 62.6 °F 88% 29.99 in 10.0 mi NNW 6.9 mph - N/A   Overcast
11:10 AM 66.2 °F 62.6 °F 88% 30.00 in 10.0 mi NNW 6.9 mph - N/A   Overcast
11:30 AM 68.0 °F 62.6 °F 83% 29.99 in 10.0 mi NW 10.4 mph - N/A   Unknown
11:50 AM 68.0 °F 62.6 °F 83% 29.99 in 9.0 mi NW 11.5 mph - N/A   Scattered Clouds
12:10 PM 68.0 °F 62.6 °F 83% 29.98 in 5.0 mi NW 10.4 mph 16.1 mph N/A   Haze
12:30 PM 68.0 °F 62.6 °F 83% 29.98 in 10.0 mi NW 10.4 mph - N/A   Clear
12:50 PM 69.8 °F 62.6 °F 78% 29.98 in 10.0 mi NNW 11.5 mph 18.4 mph N/A   Clear
1:10 PM 69.8 °F 62.6 °F 78% 29.98 in 10.0 mi NNW 9.2 mph 17.3 mph N/A   Clear
1:30 PM 69.8 °F 62.6 °F 78% 29.98 in 9.0 mi NW 10.4 mph 16.1 mph N/A   Scattered Clouds
1:50 PM 68.0 °F 62.6 °F 83% 29.98 in 10.0 mi NNW 10.4 mph - N/A   Mostly Cloudy
2:10 PM 68.0 °F 62.6 °F 83% 29.97 in 10.0 mi NNW 10.4 mph - N/A   Overcast
2:30 PM 69.8 °F 62.6 °F 78% 29.97 in 10.0 mi NNW 9.2 mph - N/A   Scattered Clouds
2:50 PM 68.0 °F 60.8 °F 78% 29.96 in 10.0 mi NNW 11.5 mph - N/A   Clear
3:10 PM 68.0 °F 62.6 °F 83% 29.96 in 10.0 mi NW 11.5 mph - N/A   Clear
3:30 PM 68.0 °F 62.6 °F 83% 29.95 in 10.0 mi NNW 10.4 mph - N/A   Clear
3:50 PM 68.0 °F 62.6 °F 83% 29.95 in 10.0 mi NNW 11.5 mph - N/A   Clear
4:10 PM 68.0 °F 62.6 °F 83% 29.94 in 10.0 mi NNW 12.7 mph - N/A   Clear
4:30 PM 68.0 °F 62.6 °F 83% 29.94 in 10.0 mi NNW 9.2 mph - N/A   Clear
4:50 PM 68.0 °F 62.6 °F 83% 29.94 in 10.0 mi NW 9.2 mph - N/A   Clear
5:10 PM 68.0 °F 60.8 °F 78% 29.94 in 10.0 mi NNW 11.5 mph - N/A   Clear
5:30 PM 68.0 °F 60.8 °F 78% 29.93 in 9.0 mi NNW 11.5 mph - N/A   Clear
5:50 PM 68.0 °F 62.6 °F 83% 29.93 in 10.0 mi NNW 12.7 mph - N/A   Clear
6:10 PM 68.0 °F 62.6 °F 83% 29.93 in 10.0 mi NNW 11.5 mph - N/A   Clear
6:30 PM 66.2 °F 62.6 °F 88% 29.93 in 10.0 mi North 12.7 mph - N/A   Clear
6:50 PM 66.2 °F 62.6 °F 88% 29.93 in 10.0 mi North 12.7 mph 17.3 mph N/A   Clear
7:10 PM 66.2 °F 62.6 °F 88% 29.93 in 10.0 mi North 11.5 mph 18.4 mph N/A   Partly Cloudy
7:30 PM 64.4 °F 62.6 °F 94% 29.93 in 9.0 mi North 11.5 mph - N/A   Mostly Cloudy
7:50 PM 64.4 °F 62.6 °F 94% 29.93 in 10.0 mi NNW 13.8 mph - N/A   Scattered Clouds
8:10 PM 64.4 °F 62.6 °F 94% 29.94 in 10.0 mi North 11.5 mph - N/A   Mostly Cloudy
8:30 PM 64.4 °F 62.6 °F 94% 29.95 in 9.0 mi North 10.4 mph - N/A   Overcast
8:50 PM 64.4 °F 62.6 °F 94% 29.95 in 4.0 mi North 10.4 mph - N/A   Overcast
9:10 PM 62.6 °F 62.6 °F 100% 29.95 in 0.8 mi North 8.1 mph - N/A   Overcast
9:30 PM 62.6 °F 62.6 °F 100% 29.96 in 0.8 mi North 8.1 mph - N/A   Overcast
9:50 PM 62.6 °F 60.8 °F 94% 29.96 in 1.5 mi NNW 10.4 mph - N/A   Overcast
10:10 PM 60.8 °F 60.8 °F 100% 29.96 in 2.0 mi NNW 10.4 mph - N/A   Overcast
10:30 PM 60.8 °F 59.0 °F 94% 29.97 in 2.0 mi NNW 9.2 mph - N/A   Overcast
10:50 PM 60.8 °F 60.8 °F 100% 29.97 in 1.2 mi NNW 8.1 mph - N/A   Overcast
11:10 PM 60.8 °F 60.8 °F 100% 29.97 in 1.0 mi NNW 5.8 mph - N/A   Overcast
11:30 PM 60.8 °F 60.8 °F 100% 29.97 in 3.0 mi NNW 5.8 mph - N/A   Overcast
11:50 PM 60.8 °F 60.8 °F 100% 29.97 in 8.0 mi NNW 5.8 mph - N/A   Overcast