Weather History for Half Moon Bay, CA

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Monday, May 13, 2013

  Actual Average Record
Temperature  
Mean Temperature 52 °F -  
Max Temperature 57 °F 61 °F 59 °F (2012)
Min Temperature 46 °F 46 °F 46 °F (2013)
Degree Days  
Heating Degree Days 14    
Growing Degree Days 2 (Base 50)    
Moisture  
Dew Point 51 °F    
Average Humidity 91    
Maximum Humidity 100    
Minimum Humidity 82    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.09 in    
Wind  
Wind Speed 7 mph (NNW)    
Max Wind Speed 15 mph    
Max Gust Speed 20 mph    
Visibility 5 miles    
Events Rain    
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

May. 13, 2013 Rise Set
Actual Time 6:02 AM PDT 8:11 PM PDT
Civil Twilight 5:33 AM PDT 8:40 PM PDT
Nautical Twilight 4:57 AM PDT 9:15 PM PDT
Astronomical Twilight 4:18 AM PDT 9:54 PM PDT
Moon 8:53 AM PDT (5/13) 11:23 PM PDT (5/13)
Length of Visible Light 15h 07m
Length of Day
14h 08m
Waxing Crescent, 13% of the Moon is Illuminated
May 13
Waxing Crescent
May 17
First Quarter
May 24
Full
May 31
Last Quarter
Jun 8
New

Hourly Weather History & Observations

Time (PDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 53.6 °F - 50.0 °F 88% 30.11 in 10.0 mi North 6.9 mph - N/A   Overcast
12:35 AM 53.6 °F - 50.0 °F 88% 30.11 in 9.0 mi NNW 6.9 mph - N/A   Overcast
12:55 AM 53.6 °F - 50.0 °F 88% 30.11 in 10.0 mi North 5.8 mph - N/A   Overcast
1:15 AM 53.6 °F - 50.0 °F 88% 30.10 in 9.0 mi North 9.2 mph - N/A   Overcast
1:35 AM 53.6 °F - 50.0 °F 88% 30.10 in 9.0 mi North 9.2 mph - N/A   Overcast
1:55 AM 53.6 °F - 50.0 °F 88% 30.10 in 8.0 mi NNW 6.9 mph - N/A   Overcast
2:15 AM 53.6 °F - 50.0 °F 88% 30.10 in 5.0 mi NNW 6.9 mph - N/A   Overcast
2:35 AM 53.6 °F - 50.0 °F 88% 30.09 in 8.0 mi North 8.1 mph - N/A   Overcast
2:55 AM 53.6 °F - 50.0 °F 88% 30.09 in 7.0 mi North 3.5 mph - N/A   Overcast
3:15 AM 53.6 °F - 50.0 °F 88% 30.10 in 5.0 mi NNE 5.8 mph - N/A   Overcast
3:35 AM 53.6 °F - 50.0 °F 88% 30.09 in 3.0 mi North 5.8 mph - N/A   Overcast
3:55 AM 53.6 °F - 50.0 °F 88% 30.09 in 9.0 mi NNE 4.6 mph - N/A   Overcast
4:15 AM 53.6 °F - 50.0 °F 88% 30.09 in 7.0 mi Calm Calm - N/A   Overcast
4:35 AM 53.6 °F - 50.0 °F 88% 30.09 in 7.0 mi North 3.5 mph - N/A   Overcast
4:55 AM 53.6 °F - 51.8 °F 94% 30.09 in 4.0 mi Calm Calm - N/A   Overcast
5:15 AM 53.6 °F - 51.8 °F 94% 30.09 in 2.5 mi NNW 5.8 mph - N/A   Overcast
5:35 AM 53.6 °F - 53.6 °F 100% 30.09 in 1.5 mi NNW 5.8 mph - N/A   Overcast
5:55 AM 53.6 °F - 51.8 °F 94% 30.10 in 4.0 mi North 4.6 mph - N/A   Overcast
6:15 AM 53.6 °F - 51.8 °F 94% 30.10 in 2.0 mi North 6.9 mph - N/A   Overcast
6:35 AM 53.6 °F - 51.8 °F 94% 30.10 in 3.0 mi North 6.9 mph - N/A   Overcast
6:55 AM 53.6 °F - 51.8 °F 94% 30.11 in 1.0 mi NNW 9.2 mph - N/A   Overcast
7:15 AM 53.6 °F - 51.8 °F 94% 30.11 in 4.0 mi North 6.9 mph - N/A   Overcast
7:35 AM 53.6 °F - 51.8 °F 94% 30.12 in 2.5 mi North 10.4 mph - N/A   Overcast
7:55 AM 53.6 °F - 51.8 °F 94% 30.12 in 4.0 mi NNW 9.2 mph - N/A   Overcast
8:15 AM 53.6 °F - 51.8 °F 94% 30.13 in 2.0 mi NNW 9.2 mph - N/A   Overcast
8:35 AM 53.6 °F - 53.6 °F 100% 30.14 in 1.8 mi NNW 9.2 mph - N/A   Overcast
8:55 AM 53.6 °F - 53.6 °F 100% 30.14 in 1.0 mi NNW 10.4 mph - N/A Rain Light Rain
9:15 AM 53.6 °F - 53.6 °F 100% 30.14 in 1.8 mi North 8.1 mph - N/A   Overcast
9:35 AM 53.6 °F - 53.6 °F 100% 30.15 in 3.0 mi NNW 10.4 mph - N/A   Overcast
9:55 AM 55.4 °F - 53.6 °F 94% 30.15 in 2.0 mi NNW 9.2 mph - N/A   Overcast
10:15 AM 55.4 °F - 53.6 °F 94% 30.15 in 2.5 mi NNW 8.1 mph - N/A   Overcast
10:35 AM 55.4 °F - 53.6 °F 94% 30.14 in 5.0 mi North 9.2 mph - N/A   Overcast
10:55 AM 55.4 °F - 53.6 °F 94% 30.15 in 3.0 mi NNW 11.5 mph - N/A   Overcast
11:15 AM 55.4 °F - 53.6 °F 94% 30.15 in 7.0 mi North 9.2 mph - N/A   Overcast
11:35 AM 55.4 °F - 53.6 °F 94% 30.15 in 3.0 mi NNW 11.5 mph - N/A   Overcast
11:55 AM 57.2 °F - 53.6 °F 88% 30.14 in 10.0 mi NW 11.5 mph - N/A   Mostly Cloudy
12:15 PM 57.2 °F - 53.6 °F 88% 30.14 in 4.0 mi NW 12.7 mph - N/A   Mostly Cloudy
12:35 PM 57.2 °F - 53.6 °F 88% 30.14 in 2.5 mi NNW 12.7 mph 19.6 mph N/A   Mostly Cloudy
1:35 PM 57.2 °F - 53.6 °F 88% 30.13 in 3.0 mi North 15.0 mph - N/A   Mostly Cloudy
1:55 PM 57.2 °F - 53.6 °F 88% 30.12 in 5.0 mi NNW 13.8 mph - N/A   Overcast
2:15 PM 57.2 °F - 53.6 °F 88% 30.12 in 5.0 mi NNW 13.8 mph 19.6 mph N/A   Overcast
2:35 PM 57.2 °F - 53.6 °F 88% 30.11 in 4.0 mi NNW 13.8 mph 18.4 mph N/A   Overcast
2:55 PM 57.2 °F - 53.6 °F 88% 30.11 in 3.0 mi NNW 11.5 mph - N/A   Overcast
3:15 PM 57.2 °F - 53.6 °F 88% 30.11 in 4.0 mi NNW 11.5 mph - N/A   Overcast
3:35 PM 55.4 °F - 53.6 °F 94% 30.10 in 7.0 mi North 13.8 mph - N/A   Overcast
3:55 PM 57.2 °F - 53.6 °F 88% 30.10 in 7.0 mi North 11.5 mph - N/A   Overcast
4:35 PM 55.4 °F - 53.6 °F 94% 30.09 in 5.0 mi NNW 13.8 mph - N/A   Overcast
5:15 PM 55.4 °F - 53.6 °F 94% 30.08 in 5.0 mi NNW 12.7 mph - N/A   Overcast
5:35 PM 55.4 °F - 53.6 °F 94% 30.08 in 5.0 mi NNW 12.7 mph - N/A   Overcast
5:55 PM 57.2 °F - 53.6 °F 88% 30.07 in 5.0 mi NNW 13.8 mph - N/A   Mostly Cloudy
6:15 PM 57.2 °F - 51.8 °F 82% 30.06 in 6.0 mi NNW 10.4 mph - N/A   Haze
6:35 PM 55.4 °F - 51.8 °F 88% 30.06 in 6.0 mi NNW 13.8 mph - N/A   Clear
6:55 PM 55.4 °F - 50.0 °F 82% 30.05 in 6.0 mi NNW 8.1 mph - N/A   Haze
7:15 PM 55.4 °F - 50.0 °F 82% 30.05 in 5.0 mi NW 5.8 mph - N/A   Haze
7:35 PM 55.4 °F - 50.0 °F 82% 30.04 in 5.0 mi NW 3.5 mph - N/A   Clear
7:55 PM 53.6 °F - 50.0 °F 88% 30.04 in 5.0 mi Calm Calm - N/A   Clear
8:15 PM 53.6 °F - 50.0 °F 88% 30.04 in 2.5 mi West 3.5 mph - N/A   Clear
8:35 PM 53.6 °F - 48.2 °F 82% 30.04 in 3.0 mi Calm Calm - N/A   Partly Cloudy
8:55 PM 51.8 °F - 48.2 °F 88% 30.04 in 7.0 mi SE 3.5 mph - N/A   Partly Cloudy
9:15 PM 50.0 °F - 48.2 °F 94% 30.04 in 5.0 mi Calm Calm - N/A   Partly Cloudy
9:35 PM 50.0 °F - 46.4 °F 87% 30.04 in 5.0 mi Calm Calm - N/A   Clear
9:55 PM 50.0 °F - 46.4 °F 87% 30.04 in 6.0 mi Calm Calm - N/A   Clear
10:15 PM 48.2 °F - 46.4 °F 93% 30.04 in 6.0 mi Calm Calm - N/A   Clear
10:35 PM 48.2 °F - 46.4 °F 93% 30.03 in 6.0 mi Calm Calm - N/A   Clear
10:55 PM 48.2 °F - 46.4 °F 93% 30.04 in 5.0 mi Calm Calm - N/A   Clear
11:15 PM 46.4 °F - 44.6 °F 93% 30.03 in 5.0 mi Calm Calm - N/A   Clear
11:35 PM 46.4 °F - 44.6 °F 93% 30.03 in 5.0 mi Calm Calm - N/A   Clear
11:55 PM 46.4 °F 45.2 °F 44.6 °F 93% 30.03 in 6.0 mi ENE 3.5 mph - N/A   Partly Cloudy