Weather History for Half Moon Bay, CA

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Friday, April 12, 2013

  Actual Average Record
Temperature  
Mean Temperature 50 °F -  
Max Temperature 55 °F 60 °F 57 °F (2012)
Min Temperature 44 °F 43 °F 44 °F (2013)
Degree Days  
Heating Degree Days 16    
Moisture  
Dew Point 46 °F    
Average Humidity 88    
Maximum Humidity 94    
Minimum Humidity 77    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.94 in    
Wind  
Wind Speed 7 mph (North)    
Max Wind Speed 16 mph    
Max Gust Speed 24 mph    
Visibility 4 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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Date:

Astronomy

Apr. 12, 2013 Rise Set
Actual Time 6:38 AM PDT 7:43 PM PDT
Civil Twilight 6:12 AM PDT 8:09 PM PDT
Nautical Twilight 5:40 AM PDT 8:41 PM PDT
Astronomical Twilight 5:07 AM PDT 9:15 PM PDT
Moon 7:55 AM PDT (4/12) 10:15 PM PDT (4/12)
Length of Visible Light 13h 57m
Length of Day
13h 04m
Waxing Crescent, 6% of the Moon is Illuminated
Apr 12
Waxing Crescent
Apr 18
First Quarter
Apr 25
Full
May 2
Last Quarter
May 9
New

Hourly Weather History & Observations

Time (PDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:10 AM 48.2 °F - 46.4 °F 93% 29.95 in 3.0 mi North 6.9 mph - N/A   Overcast
12:30 AM 48.2 °F - 46.4 °F 93% 29.94 in 3.0 mi North 9.2 mph - N/A   Overcast
12:50 AM 48.2 °F - 44.6 °F 87% 29.93 in 3.0 mi North 5.8 mph - N/A   Mostly Cloudy
1:10 AM 48.2 °F - 44.6 °F 87% 29.94 in 3.0 mi North 4.6 mph - N/A   Mostly Cloudy
1:30 AM 48.2 °F - 46.4 °F 93% 29.94 in 3.0 mi North 4.6 mph - N/A   Overcast
1:50 AM 48.2 °F - 46.4 °F 93% 29.93 in 3.0 mi North 6.9 mph - N/A   Overcast
2:10 AM 48.2 °F - 44.6 °F 87% 29.92 in 3.0 mi North 5.8 mph - N/A   Overcast
2:30 AM 46.4 °F 45.2 °F 42.8 °F 87% 29.93 in 4.0 mi East 3.5 mph - N/A   Overcast
2:50 AM 44.6 °F - 42.8 °F 93% 29.92 in 4.0 mi Calm Calm - N/A   Overcast
3:10 AM 46.4 °F - 42.8 °F 87% 29.92 in 4.0 mi Calm Calm - N/A   Overcast
3:30 AM 46.4 °F - 42.8 °F 87% 29.91 in 5.0 mi Calm Calm - N/A   Overcast
3:50 AM 46.4 °F 44.3 °F 42.8 °F 87% 29.91 in 5.0 mi ENE 4.6 mph - N/A   Overcast
4:10 AM 46.4 °F 43.5 °F 44.6 °F 93% 29.91 in 4.0 mi ENE 5.8 mph - N/A   Overcast
4:30 AM 46.4 °F 44.3 °F 44.6 °F 93% 29.91 in 4.0 mi ENE 4.6 mph - N/A   Overcast
4:50 AM 46.4 °F 44.3 °F 44.6 °F 93% 29.91 in 4.0 mi East 4.6 mph - N/A   Overcast
5:10 AM 48.2 °F - 44.6 °F 87% 29.91 in 4.0 mi East 3.5 mph - N/A   Overcast
5:30 AM 46.4 °F 43.5 °F 44.6 °F 93% 29.92 in 4.0 mi East 5.8 mph - N/A   Overcast
5:50 AM 46.4 °F 45.2 °F 44.6 °F 93% 29.92 in 4.0 mi East 3.5 mph - N/A   Overcast
6:10 AM 48.2 °F - 46.4 °F 93% 29.92 in 3.0 mi Calm Calm - N/A   Overcast
6:30 AM 48.2 °F - 44.6 °F 87% 29.92 in 4.0 mi East 3.5 mph - N/A   Overcast
6:50 AM 48.2 °F - 46.4 °F 93% 29.93 in 3.0 mi ENE 3.5 mph - N/A   Overcast
7:10 AM 48.2 °F - 44.6 °F 87% 29.94 in 3.0 mi East 3.5 mph - N/A   Overcast
7:50 AM 48.2 °F - 46.4 °F 93% 29.95 in 2.5 mi Calm Calm - N/A   Overcast
8:10 AM 48.2 °F - 46.4 °F 93% 29.95 in 3.0 mi NNW 5.8 mph - N/A   Overcast
8:30 AM 48.2 °F - 46.4 °F 93% 29.96 in 3.0 mi NNW 3.5 mph - N/A   Overcast
8:50 AM 48.2 °F - 46.4 °F 93% 29.96 in 3.0 mi North 8.1 mph - N/A   Mostly Cloudy
9:10 AM 48.2 °F - 46.4 °F 93% 29.96 in 3.0 mi NNE 3.5 mph - N/A   Mostly Cloudy
9:30 AM 48.2 °F - 46.4 °F 93% 29.97 in 3.0 mi North 3.5 mph - N/A   Mostly Cloudy
9:50 AM 48.2 °F - 46.4 °F 93% 29.97 in 3.0 mi WNW 3.5 mph - N/A   Scattered Clouds
10:10 AM 50.0 °F - 46.4 °F 87% 29.96 in 2.5 mi West 4.6 mph - N/A   Scattered Clouds
10:30 AM 50.0 °F - 46.4 °F 87% 29.96 in 2.5 mi WNW 3.5 mph - N/A   Partly Cloudy
10:50 AM 50.0 °F - 46.4 °F 87% 29.97 in 3.0 mi West 6.9 mph - N/A   Clear
11:10 AM 51.8 °F - 48.2 °F 88% 29.96 in 3.0 mi WSW 8.1 mph - N/A   Clear
11:30 AM 51.8 °F - 48.2 °F 88% 29.96 in 3.0 mi West 8.1 mph - N/A   Clear
11:50 AM 51.8 °F - 48.2 °F 88% 29.96 in 3.0 mi West 9.2 mph - N/A   Clear
12:10 PM 50.0 °F - 48.2 °F 94% 29.96 in 2.5 mi West 6.9 mph - N/A   Clear
12:30 PM 50.0 °F - 48.2 °F 94% 29.96 in 2.5 mi NW 9.2 mph - N/A   Clear
12:50 PM 53.6 °F - 48.2 °F 82% 29.96 in 3.0 mi NNW 12.7 mph - N/A   Haze
1:10 PM 53.6 °F - 48.2 °F 82% 29.95 in 3.0 mi NNW 12.7 mph - N/A   Clear
1:30 PM 55.4 °F - 48.2 °F 77% 29.94 in 3.0 mi NNW 12.7 mph - N/A   Haze
1:50 PM 53.6 °F - 48.2 °F 82% 29.93 in 4.0 mi NNW 13.8 mph - N/A   Haze
2:10 PM 55.4 °F - 48.2 °F 77% 29.93 in 3.0 mi NNW 12.7 mph - N/A   Haze
2:30 PM 53.6 °F - 48.2 °F 82% 29.93 in 4.0 mi NNW 13.8 mph - N/A   Haze
2:45 PM - - - N/A% - - North - - N/A   Unknown
4:35 PM - - - N/A% - - North - - N/A   Unknown
4:50 PM 53.6 °F - 48.2 °F 82% 29.93 in 4.0 mi NNW 16.1 mph 24.2 mph N/A   Haze
5:10 PM 53.6 °F - 46.4 °F 77% 29.92 in 4.0 mi North 15.0 mph 23.0 mph N/A   Haze
5:30 PM 53.6 °F - 46.4 °F 77% 29.92 in 4.0 mi North 15.0 mph 23.0 mph N/A   Haze
5:50 PM 51.8 °F - 46.4 °F 82% 29.92 in 4.0 mi NNW 15.0 mph - N/A   Haze
6:10 PM 51.8 °F - 46.4 °F 82% 29.92 in 3.0 mi NNW 16.1 mph - N/A   Haze
6:30 PM 50.0 °F - 46.4 °F 87% 29.93 in 4.0 mi North 13.8 mph 21.9 mph N/A   Haze
6:50 PM 50.0 °F - 46.4 °F 87% 29.92 in 4.0 mi North 13.8 mph 20.7 mph N/A   Haze
7:10 PM 50.0 °F - 46.4 °F 87% 29.92 in 4.0 mi North 13.8 mph 21.9 mph N/A   Partly Cloudy
7:30 PM 50.0 °F - 46.4 °F 87% 29.92 in 3.0 mi North 9.2 mph - N/A   Scattered Clouds
7:50 PM 50.0 °F - 44.6 °F 82% 29.92 in 3.0 mi North 9.2 mph - N/A   Haze
8:10 PM 48.2 °F - 44.6 °F 87% 29.92 in 5.0 mi North 6.9 mph - N/A   Clear
8:30 PM 48.2 °F - 44.6 °F 87% 29.93 in 5.0 mi NNW 4.6 mph - N/A   Clear
8:50 PM 48.2 °F - 44.6 °F 87% 29.93 in 5.0 mi North 3.5 mph - N/A   Clear
9:10 PM 48.2 °F - 44.6 °F 87% 29.94 in 5.0 mi Calm Calm - N/A   Clear
9:30 PM 48.2 °F - 44.6 °F 87% 29.95 in 5.0 mi North 4.6 mph - N/A   Partly Cloudy
9:50 PM 48.2 °F - 44.6 °F 87% 29.96 in 5.0 mi NNW 8.1 mph - N/A   Mostly Cloudy
10:10 PM 48.2 °F - 44.6 °F 87% 29.96 in 5.0 mi NNW 10.4 mph - N/A   Overcast
10:30 PM 48.2 °F - 46.4 °F 93% 29.96 in 5.0 mi NNW 12.7 mph - N/A   Overcast
10:50 PM 48.2 °F - 44.6 °F 87% 29.96 in 5.0 mi NNW 10.4 mph - N/A   Overcast
11:10 PM 48.2 °F - 44.6 °F 87% 29.96 in 5.0 mi NNW 11.5 mph - N/A   Overcast
11:30 PM 48.2 °F - 44.6 °F 87% 29.95 in 5.0 mi North 11.5 mph 20.7 mph N/A   Overcast
11:50 PM 48.2 °F - 44.6 °F 87% 29.95 in 5.0 mi NNW 10.4 mph - N/A   Mostly Cloudy