Weather History for Half Moon Bay, CA

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Tuesday, November 20, 2012

  Actual Average Record
Temperature  
Mean Temperature 60 °F -  
Max Temperature 62 °F 62 °F 62 °F (2012)
Min Temperature 57 °F 44 °F 46 °F (2011)
Degree Days  
Heating Degree Days 6    
Growing Degree Days 10 (Base 50)    
Moisture  
Dew Point 57 °F    
Average Humidity 93    
Maximum Humidity 100    
Minimum Humidity 82    
Precipitation  
Precipitation 0.21 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.11 in    
Wind  
Wind Speed 14 mph (South)    
Max Wind Speed 21 mph    
Max Gust Speed 28 mph    
Visibility 6 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

Nov. 20, 2012 Rise Set
Actual Time 6:55 AM PST 4:55 PM PST
Civil Twilight 6:27 AM PST 5:23 PM PST
Nautical Twilight 5:55 AM PST 5:55 PM PST
Astronomical Twilight 5:24 AM PST 6:27 PM PST
Moon 12:36 PM PST (11/20) No Moon Set
Length of Visible Light 10h 56m
Length of Day
10h 00m
First Quarter, 52% of the Moon is Illuminated
Nov 20
First Quarter
Nov 28
Full
Dec 6
Last Quarter
Dec 13
New
Dec 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 57.2 °F 53.6 °F 88% 30.18 in 10.0 mi SSE 10.4 mph - N/A   Overcast
12:35 AM 57.2 °F 53.6 °F 88% 30.18 in 10.0 mi South 10.4 mph - N/A   Overcast
12:55 AM 57.2 °F 53.6 °F 88% 30.17 in 10.0 mi South 10.4 mph - N/A   Overcast
1:15 AM 57.2 °F 53.6 °F 88% 30.17 in 10.0 mi South 12.7 mph 17.3 mph N/A   Overcast
1:35 AM 57.2 °F 55.4 °F 94% 30.16 in 5.0 mi South 16.1 mph - N/A   Overcast
1:55 AM 57.2 °F 55.4 °F 94% 30.16 in 10.0 mi South 15.0 mph - N/A   Overcast
2:15 AM 57.2 °F 55.4 °F 94% 30.16 in 9.0 mi South 13.8 mph - N/A   Overcast
2:35 AM 57.2 °F 55.4 °F 94% 30.15 in 9.0 mi South 15.0 mph - N/A   Overcast
2:55 AM 57.2 °F 55.4 °F 94% 30.15 in 10.0 mi South 12.7 mph - N/A   Overcast
3:15 AM 57.2 °F 55.4 °F 94% 30.15 in 10.0 mi South 11.5 mph - N/A   Overcast
3:35 AM 57.2 °F 55.4 °F 94% 30.15 in 10.0 mi South 12.7 mph - N/A   Overcast
3:55 AM 57.2 °F 55.4 °F 94% 30.14 in 8.0 mi South 12.7 mph - N/A   Overcast
4:15 AM 57.2 °F 55.4 °F 94% 30.14 in 3.0 mi South 9.2 mph - N/A   Overcast
4:35 AM 57.2 °F 55.4 °F 94% 30.14 in 3.0 mi SSE 10.4 mph - N/A   Overcast
4:55 AM 57.2 °F 55.4 °F 94% 30.14 in 7.0 mi South 12.7 mph - N/A   Overcast
5:15 AM 57.2 °F 55.4 °F 94% 30.14 in 6.0 mi South 11.5 mph - N/A   Overcast
5:35 AM 57.2 °F 55.4 °F 94% 30.14 in 5.0 mi South 12.7 mph - N/A   Overcast
5:55 AM 57.2 °F 55.4 °F 94% 30.15 in 8.0 mi South 12.7 mph - N/A   Overcast
6:15 AM 57.2 °F 57.2 °F 100% 30.15 in 8.0 mi South 15.0 mph - N/A   Overcast
6:35 AM 57.2 °F 55.4 °F 94% 30.15 in 10.0 mi South 12.7 mph - N/A   Overcast
6:55 AM 57.2 °F 55.4 °F 94% 30.15 in 7.0 mi South 13.8 mph 20.7 mph N/A   Overcast
7:15 AM 57.2 °F 55.4 °F 94% 30.15 in 8.0 mi South 15.0 mph - N/A   Overcast
7:35 AM 57.2 °F 55.4 °F 94% 30.15 in 7.0 mi South 13.8 mph - N/A   Overcast
7:55 AM 57.2 °F 57.2 °F 100% 30.15 in 5.0 mi South 13.8 mph - N/A   Overcast
8:15 AM 57.2 °F 57.2 °F 100% 30.15 in 7.0 mi South 15.0 mph - N/A   Overcast
8:35 AM 59.0 °F 57.2 °F 94% 30.15 in 7.0 mi South 15.0 mph - N/A   Overcast
8:55 AM 59.0 °F 57.2 °F 94% 30.15 in 7.0 mi South 15.0 mph 20.7 mph N/A   Overcast
9:15 AM 59.0 °F 57.2 °F 94% 30.14 in 7.0 mi South 13.8 mph 18.4 mph N/A   Overcast
9:35 AM 59.0 °F 57.2 °F 94% 30.15 in 7.0 mi South 13.8 mph - N/A   Overcast
9:55 AM 59.0 °F 57.2 °F 94% 30.15 in 7.0 mi South 15.0 mph - N/A   Overcast
10:15 AM 60.8 °F 57.2 °F 88% 30.14 in 7.0 mi South 17.3 mph 20.7 mph N/A   Mostly Cloudy
10:35 AM 60.8 °F 57.2 °F 88% 30.15 in 7.0 mi South 15.0 mph - N/A   Mostly Cloudy
10:55 AM 59.0 °F 57.2 °F 94% 30.14 in 7.0 mi South 16.1 mph - N/A   Overcast
11:15 AM 59.0 °F 57.2 °F 94% 30.13 in 7.0 mi South 15.0 mph - N/A   Overcast
11:35 AM 60.8 °F 57.2 °F 88% 30.12 in 8.0 mi South 17.3 mph - N/A   Overcast
11:55 AM 62.6 °F 57.2 °F 82% 30.11 in 8.0 mi South 18.4 mph 21.9 mph N/A   Overcast
12:15 PM 60.8 °F 57.2 °F 88% 30.10 in 8.0 mi South 13.8 mph - N/A   Overcast
12:35 PM 60.8 °F 57.2 °F 88% 30.10 in 7.0 mi South 15.0 mph - N/A   Overcast
12:55 PM 60.8 °F 57.2 °F 88% 30.09 in 8.0 mi South 18.4 mph 25.3 mph N/A   Overcast
1:15 PM 59.0 °F 57.2 °F 94% 30.09 in 7.0 mi SSW 15.0 mph 24.2 mph N/A   Overcast
1:35 PM 59.0 °F 57.2 °F 94% 30.08 in 5.0 mi South 16.1 mph 21.9 mph N/A   Overcast
1:55 PM 59.0 °F 57.2 °F 94% 30.08 in 4.0 mi South 16.1 mph 24.2 mph N/A   Overcast
2:15 PM 59.0 °F 57.2 °F 94% 30.08 in 5.0 mi South 15.0 mph - N/A   Overcast
2:35 PM 59.0 °F 57.2 °F 94% 30.08 in 3.0 mi South 13.8 mph 19.6 mph N/A   Overcast
2:55 PM 59.0 °F 57.2 °F 94% 30.07 in 4.0 mi South 18.4 mph 21.9 mph N/A   Overcast
3:15 PM 59.0 °F 57.2 °F 94% 30.07 in 5.0 mi South 17.3 mph 23.0 mph N/A   Overcast
3:35 PM 59.0 °F 57.2 °F 94% 30.07 in 5.0 mi South 17.3 mph 21.9 mph N/A   Overcast
3:55 PM 59.0 °F 57.2 °F 94% 30.07 in 7.0 mi South 18.4 mph 24.2 mph N/A   Overcast
4:15 PM 59.0 °F 57.2 °F 94% 30.07 in 6.0 mi South 15.0 mph - N/A   Overcast
4:35 PM 59.0 °F 57.2 °F 94% 30.07 in 5.0 mi South 16.1 mph 20.7 mph N/A   Overcast
4:55 PM 59.0 °F 57.2 °F 94% 30.07 in 4.0 mi South 15.0 mph 21.9 mph N/A   Overcast
5:15 PM 59.0 °F 57.2 °F 94% 30.07 in 5.0 mi South 16.1 mph 20.7 mph N/A   Overcast
5:35 PM 59.0 °F 57.2 °F 94% 30.07 in 6.0 mi South 16.1 mph - N/A   Mostly Cloudy
5:55 PM 59.0 °F 57.2 °F 94% 30.07 in 6.0 mi South 16.1 mph 26.5 mph N/A   Overcast
6:15 PM 59.0 °F 57.2 °F 94% 30.07 in 6.0 mi South 16.1 mph - N/A   Overcast
6:35 PM 59.0 °F 57.2 °F 94% 30.07 in 6.0 mi South 17.3 mph - N/A   Overcast
6:55 PM 59.0 °F 57.2 °F 94% 30.07 in 5.0 mi South 17.3 mph 26.5 mph N/A   Overcast
7:15 PM 59.0 °F 57.2 °F 94% 30.06 in 5.0 mi South 20.7 mph 25.3 mph N/A   Overcast
7:35 PM 59.0 °F 57.2 °F 94% 30.07 in 5.0 mi South 17.3 mph 21.9 mph N/A   Overcast
7:55 PM 59.0 °F 57.2 °F 94% 30.07 in 5.0 mi South 19.6 mph 23.0 mph N/A   Overcast
8:15 PM 59.0 °F 57.2 °F 94% 30.07 in 5.0 mi South 19.6 mph 27.6 mph N/A   Overcast
8:35 PM 59.0 °F 57.2 °F 94% 30.06 in 4.0 mi South 18.4 mph - N/A   Overcast
8:55 PM 59.0 °F 57.2 °F 94% 30.06 in 5.0 mi South 18.4 mph 24.2 mph N/A   Overcast
9:15 PM 59.0 °F 57.2 °F 94% 30.07 in 5.0 mi South 15.0 mph 21.9 mph N/A   Overcast
9:35 PM 59.0 °F 57.2 °F 94% 30.07 in 5.0 mi South 17.3 mph 24.2 mph N/A Rain Light Rain
9:55 PM 59.0 °F 57.2 °F 94% 30.07 in 6.0 mi South 17.3 mph 25.3 mph 0.01 in   Overcast
10:15 PM 59.0 °F 57.2 °F 94% 30.07 in 4.0 mi South 20.7 mph 25.3 mph N/A   Overcast
10:35 PM 59.0 °F 57.2 °F 94% 30.07 in 2.0 mi South 16.1 mph 26.5 mph 0.04 in Rain Light Rain
10:55 PM 59.0 °F 57.2 °F 94% 30.07 in 1.0 mi South 15.0 mph 25.3 mph 0.11 in Rain Heavy Rain
11:15 PM 59.0 °F 57.2 °F 94% 30.07 in 1.5 mi South 19.6 mph - 0.03 in   Overcast
11:35 PM 59.0 °F 57.2 °F 94% 30.07 in 1.5 mi South 16.1 mph 21.9 mph 0.08 in   Overcast
11:55 PM 59.0 °F 57.2 °F 94% 30.07 in 2.5 mi SSW 15.0 mph - 0.09 in Rain Light Rain