Weather History for Half Moon Bay, CA

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Monday, February 18, 2013

  Actual Average Record
Temperature  
Mean Temperature 47 °F -  
Max Temperature 50 °F 59 °F 57 °F (2014)
Min Temperature 44 °F 44 °F 44 °F (2013)
Degree Days  
Heating Degree Days 18    
Moisture  
Dew Point 40 °F    
Average Humidity 74    
Maximum Humidity 87    
Minimum Humidity 62    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.04 in    
Wind  
Wind Speed 7 mph (NW)    
Max Wind Speed 15 mph    
Max Gust Speed 20 mph    
Visibility 8 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

Feb. 18, 2013 Rise Set
Actual Time 6:55 AM PST 5:53 PM PST
Civil Twilight 6:28 AM PST 6:19 PM PST
Nautical Twilight 5:58 AM PST 6:50 PM PST
Astronomical Twilight 5:27 AM PST 7:20 PM PST
Moon 11:46 AM PST (2/18) 1:36 AM PST (2/18)
Length of Visible Light 11h 50m
Length of Day
10h 57m
First Quarter, 59% of the Moon is Illuminated
Feb 18
First Quarter
Feb 25
Full
Mar 4
Last Quarter
Mar 11
New
Mar 19
First Quarter

Hourly Weather History & Observations

Time (PST) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 44.6 °F 41.0 °F 87% 30.06 in 6.0 mi Calm Calm - N/A   Overcast
12:35 AM 44.6 °F 41.0 °F 87% 30.06 in 6.0 mi Calm Calm - N/A   Overcast
12:55 AM 46.4 °F 42.8 °F 87% 30.06 in 6.0 mi Calm Calm - N/A   Overcast
1:15 AM 48.2 °F 44.6 °F 87% 30.06 in 6.0 mi NNW 8.1 mph - N/A   Overcast
1:35 AM 48.2 °F 44.6 °F 87% 30.06 in 5.0 mi NNW 4.6 mph - N/A   Overcast
1:55 AM 48.2 °F 44.6 °F 87% 30.06 in 5.0 mi NNW 8.1 mph - N/A   Haze
2:15 AM 48.2 °F 44.6 °F 87% 30.05 in 5.0 mi NW 8.1 mph - N/A   Overcast
2:35 AM 48.2 °F 42.8 °F 82% 30.05 in 7.0 mi NNW 5.8 mph - N/A   Overcast
2:55 AM 48.2 °F 44.6 °F 87% 30.04 in 5.0 mi North 5.8 mph - N/A   Overcast
3:15 AM 48.2 °F 42.8 °F 82% 30.03 in 7.0 mi NW 3.5 mph - N/A   Overcast
3:35 AM 48.2 °F 42.8 °F 82% 30.03 in 7.0 mi NNW 5.8 mph - N/A   Overcast
3:55 AM 48.2 °F 42.8 °F 82% 30.03 in 6.0 mi NNW 9.2 mph - N/A   Haze
4:15 AM 48.2 °F 41.0 °F 76% 30.03 in 7.0 mi NW 6.9 mph - N/A   Overcast
4:35 AM 48.2 °F 41.0 °F 76% 30.04 in 7.0 mi NNW 10.4 mph - N/A   Overcast
4:55 AM 48.2 °F 41.0 °F 76% 30.04 in 7.0 mi NNW 10.4 mph - N/A   Overcast
5:15 AM 48.2 °F 41.0 °F 76% 30.04 in 7.0 mi NNW 10.4 mph - N/A   Overcast
5:35 AM 48.2 °F 41.0 °F 76% 30.05 in 7.0 mi NNW 9.2 mph - N/A   Overcast
6:15 AM 48.2 °F 41.0 °F 76% 30.04 in 7.0 mi NNW 10.4 mph - N/A   Overcast
6:35 AM 48.2 °F 41.0 °F 76% 30.04 in 7.0 mi NNW 10.4 mph - N/A   Overcast
6:55 AM 48.2 °F 41.0 °F 76% 30.04 in 7.0 mi NNW 9.2 mph - N/A   Overcast
7:15 AM 48.2 °F 41.0 °F 76% 30.04 in 5.0 mi NW 9.2 mph - N/A   Haze
7:35 AM 48.2 °F 39.2 °F 71% 30.05 in 6.0 mi NNW 8.1 mph - N/A   Haze
7:55 AM 48.2 °F 41.0 °F 76% 30.05 in 5.0 mi NW 8.1 mph - N/A   Haze
8:15 AM 48.2 °F 41.0 °F 76% 30.06 in 6.0 mi NW 9.2 mph - N/A   Haze
8:35 AM 48.2 °F 41.0 °F 76% 30.07 in 7.0 mi NW 9.2 mph - N/A   Mostly Cloudy
8:55 AM 48.2 °F 41.0 °F 76% 30.07 in 7.0 mi NW 9.2 mph - N/A   Overcast
9:15 AM 48.2 °F 39.2 °F 71% 30.08 in 7.0 mi NNW 11.5 mph - N/A   Overcast
9:35 AM 48.2 °F 39.2 °F 71% 30.08 in 8.0 mi NW 8.1 mph - N/A   Overcast
9:55 AM 48.2 °F 39.2 °F 71% 30.08 in 8.0 mi NW 6.9 mph - N/A   Overcast
10:15 AM 48.2 °F 39.2 °F 71% 30.08 in 8.0 mi WNW 6.9 mph - N/A   Overcast
10:35 AM 50.0 °F 39.2 °F 66% 30.08 in 8.0 mi NW 9.2 mph - N/A   Overcast
10:55 AM 50.0 °F 41.0 °F 71% 30.08 in 7.0 mi NW 9.2 mph - N/A   Overcast
11:15 AM 50.0 °F 41.0 °F 71% 30.08 in 5.0 mi NW 12.7 mph - N/A   Haze
11:35 AM 50.0 °F 41.0 °F 71% 30.08 in 7.0 mi NW 11.5 mph - N/A   Overcast
11:55 AM 50.0 °F 41.0 °F 71% 30.07 in 7.0 mi NW 15.0 mph 19.6 mph N/A   Overcast
12:15 PM 50.0 °F 39.2 °F 66% 30.06 in 7.0 mi NW 15.0 mph 18.4 mph N/A   Overcast
12:35 PM 50.0 °F 39.2 °F 66% 30.05 in 8.0 mi NW 13.8 mph - N/A   Overcast
12:55 PM 50.0 °F 39.2 °F 66% 30.05 in 8.0 mi NW 11.5 mph - N/A   Overcast
1:15 PM 50.0 °F 39.2 °F 66% 30.04 in 8.0 mi NW 8.1 mph - N/A   Overcast
1:35 PM 50.0 °F 39.2 °F 66% 30.03 in 8.0 mi NW 8.1 mph - N/A   Overcast
1:55 PM 50.0 °F 39.2 °F 66% 30.03 in 8.0 mi NW 11.5 mph - N/A   Overcast
2:15 PM 50.0 °F 39.2 °F 66% 30.03 in 8.0 mi NW 10.4 mph 16.1 mph N/A   Overcast
2:35 PM 50.0 °F 39.2 °F 66% 30.03 in 8.0 mi NW 8.1 mph - N/A   Overcast
3:15 PM 50.0 °F 39.2 °F 66% 30.03 in 10.0 mi NW 6.9 mph - N/A   Overcast
3:35 PM 50.0 °F 39.2 °F 66% 30.02 in 9.0 mi WNW 6.9 mph - N/A   Overcast
3:55 PM 48.2 °F 39.2 °F 71% 30.02 in 7.0 mi WNW 10.4 mph - N/A   Overcast
4:15 PM 50.0 °F 41.0 °F 71% 30.02 in 7.0 mi NW 9.2 mph - N/A   Overcast
4:35 PM 48.2 °F 41.0 °F 76% 30.02 in 8.0 mi NW 12.7 mph - N/A   Overcast
4:55 PM 48.2 °F 41.0 °F 76% 30.02 in 8.0 mi NNW 11.5 mph - N/A   Overcast
5:15 PM 48.2 °F 39.2 °F 71% 30.02 in 9.0 mi NW 13.8 mph 19.6 mph N/A   Overcast
5:35 PM 48.2 °F 39.2 °F 71% 30.02 in 9.0 mi NW 12.7 mph - N/A   Overcast
5:55 PM 48.2 °F 39.2 °F 71% 30.02 in 8.0 mi NW 10.4 mph - N/A   Overcast
6:15 PM 48.2 °F 39.2 °F 71% 30.01 in 10.0 mi NW 10.4 mph - N/A   Overcast
6:35 PM 48.2 °F 39.2 °F 71% 30.02 in 10.0 mi NW 10.4 mph - N/A   Overcast
6:55 PM 48.2 °F 39.2 °F 71% 30.01 in 10.0 mi NW 10.4 mph - N/A   Overcast
7:15 PM 48.2 °F 39.2 °F 71% 30.01 in 10.0 mi NW 10.4 mph - N/A   Overcast
7:35 PM 48.2 °F 41.0 °F 76% 30.01 in 10.0 mi NW 12.7 mph 16.1 mph N/A   Overcast
8:15 PM 48.2 °F 41.0 °F 76% 30.01 in 10.0 mi NW 12.7 mph 18.4 mph N/A   Overcast
8:35 PM 48.2 °F 41.0 °F 76% 30.01 in 10.0 mi NW 10.4 mph - N/A   Overcast
8:55 PM 48.2 °F 41.0 °F 76% 30.02 in 10.0 mi NW 12.7 mph - N/A   Overcast
9:15 PM 48.2 °F 39.2 °F 71% 30.02 in 10.0 mi NW 11.5 mph 16.1 mph N/A   Overcast
9:35 PM 48.2 °F 39.2 °F 71% 30.02 in 10.0 mi NW 12.7 mph - N/A   Mostly Cloudy
9:55 PM 48.2 °F 39.2 °F 71% 30.02 in 10.0 mi NNW 9.2 mph - N/A   Overcast
10:15 PM 48.2 °F 39.2 °F 71% 30.02 in 10.0 mi NW 10.4 mph - N/A   Overcast
10:35 PM 48.2 °F 37.4 °F 66% 30.02 in 10.0 mi NW 11.5 mph - N/A   Overcast
10:55 PM 48.2 °F 35.6 °F 62% 30.01 in 10.0 mi NW 12.7 mph - N/A   Overcast
11:15 PM 48.2 °F 35.6 °F 62% 30.01 in 10.0 mi NNW 12.7 mph - N/A   Overcast
11:35 PM 48.2 °F 37.4 °F 66% 30.01 in 10.0 mi NW 9.2 mph - N/A   Overcast
11:55 PM 48.2 °F 37.4 °F 66% 30.01 in 10.0 mi NW 11.5 mph - N/A   Overcast