Weather History for San Nicolas Island, CA

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Friday, December 21, 2012

  Actual Average Record
Temperature  
Mean Temperature 59 °F -  
Max Temperature 73 °F 58 °F 77 °F (1999)
Min Temperature 45 °F 49 °F 43 °F (1998)
Degree Days  
Heating Degree Days 6    
Growing Degree Days 9 (Base 50)    
Moisture  
Dew Point 43 °F    
Average Humidity 58    
Maximum Humidity 100    
Minimum Humidity 28    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.07 in    
Wind  
Wind Speed 9 mph (West)    
Max Wind Speed 15 mph    
Max Gust Speed -    
Visibility 9 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

Dec. 21, 2012 Rise Set
Actual Time 6:57 AM PST 4:54 PM PST
Civil Twilight 6:30 AM PST 5:22 PM PST
Nautical Twilight 5:59 AM PST 5:53 PM PST
Astronomical Twilight 5:28 AM PST 6:23 PM PST
Moon 12:33 PM PST (12/21) 1:01 AM PST (12/21)
Length of Visible Light 10h 52m
Length of Day
9h 57m
Waxing Gibbous, 66% of the Moon is Illuminated
Dec 21
Waxing Gibbous
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter

Hourly Weather History & Observations

Time (PST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 59.0 °F - 39.9 °F 49% 30.06 in 10.0 mi West 8.1 mph - N/A   Clear
1:53 AM 60.1 °F - 39.9 °F 47% 30.06 in 10.0 mi West 10.4 mph - N/A   Clear
2:53 AM 60.1 °F - 37.0 °F 42% 30.05 in 10.0 mi West 8.1 mph - N/A   Clear
3:53 AM 60.1 °F - 33.1 °F 36% 30.03 in 10.0 mi West 3.5 mph - N/A   Clear
4:53 AM 62.1 °F - 28.0 °F 28% 30.02 in 10.0 mi West 6.9 mph - N/A   Clear
5:53 AM 45.5 °F 39.9 °F 43.9 °F 94% 30.04 in 7.0 mi West 11.5 mph - N/A   Clear
6:53 AM 46.2 °F 40.8 °F 46.2 °F 100% 30.08 in 7.0 mi West 11.5 mph - N/A   Clear
7:53 AM 49.8 °F - 44.2 °F 81% 30.09 in 7.0 mi West 11.5 mph - N/A   Clear
8:53 AM 52.9 °F - 47.7 °F 82% 30.11 in 7.0 mi WNW 13.8 mph - N/A   Partly Cloudy
9:53 AM 54.5 °F - 47.8 °F 78% 30.12 in 7.0 mi WNW 15.0 mph - N/A   Scattered Clouds
10:53 AM 56.5 °F - 48.0 °F 73% 30.11 in 7.0 mi NW 11.5 mph - N/A   Scattered Clouds
11:53 AM 55.0 °F - 48.4 °F 78% 30.09 in 7.0 mi NW 12.7 mph - N/A   Scattered Clouds
12:53 PM 54.5 °F - 47.1 °F 76% 30.06 in 7.0 mi NNW 9.2 mph - N/A   Scattered Clouds
1:53 PM 55.2 °F - 47.8 °F 76% 30.06 in 7.0 mi NW 9.2 mph - N/A   Mostly Cloudy
2:53 PM 73.9 °F - 46.0 °F 37% 30.05 in 10.0 mi WNW 8.1 mph - N/A   Clear
3:53 PM 69.1 °F - 45.0 °F 42% 30.05 in 10.0 mi WNW 8.1 mph - N/A   Clear
4:53 PM 66.9 °F - 43.0 °F 42% 30.04 in 10.0 mi West 8.1 mph - N/A   Clear
5:53 PM 64.9 °F - 42.1 °F 43% 30.06 in 10.0 mi WSW 9.2 mph - N/A   Clear
6:53 PM 66.0 °F - 44.1 °F 45% 30.07 in 10.0 mi SW 9.2 mph - N/A   Clear
7:53 PM 66.9 °F - 44.1 °F 44% 30.08 in 10.0 mi SW 10.4 mph - N/A   Clear
8:53 PM 64.9 °F - 45.0 °F 48% 30.08 in 10.0 mi SW 8.1 mph - N/A   Clear
9:53 PM 64.9 °F - 44.1 °F 47% 30.08 in 10.0 mi SW 8.1 mph - N/A   Clear
10:53 PM 64.0 °F - 44.1 °F 48% 30.08 in 10.0 mi SW 6.9 mph - N/A   Clear
11:53 PM 62.1 °F - 44.1 °F 52% 30.07 in 10.0 mi SW 5.8 mph - N/A   Clear