Weather History for KNBC - December, 2011

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Thursday, December 22, 2011

  Actual Average Record
Temperature  
Mean Temperature 70 °F -  
Max Temperature 78 °F 60 °F 79 °F (1970)
Min Temperature 62 °F 41 °F 21 °F (1960)
Cooling Degree Days 5    
Growing Degree Days 20 (Base 50)    
Moisture  
Dew Point 60 °F    
Average Humidity 77    
Maximum Humidity 90    
Minimum Humidity 54    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.08 in    
Wind  
Wind Speed 6 mph (SE)    
Max Wind Speed 12 mph    
Max Gust Speed 20 mph    
Visibility 10 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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Astronomy

Dec. 22, 2011 Rise Set
Actual Time 7:20 AM EST 5:21 PM EST
Civil Twilight 6:53 AM EST 5:49 PM EST
Nautical Twilight 6:22 AM EST 6:19 PM EST
Astronomical Twilight 5:52 AM EST 6:49 PM EST
Moon 5:03 AM EST (12/22) 3:30 PM EST (12/22)
Length of Visible Light 10h 55m
Length of Day
10h 01m
Waning Crescent, 6% of the Moon is Illuminated
Dec 22
Waning Crescent
Dec 24
New
Jan 1
First Quarter
Jan 9
Full
Jan 16
Last Quarter

Hourly Weather History & Observations

Time (EST) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 64.0 °F 59.0 °F 84% 30.08 in 10.0 mi SSE 8.1 mph - N/A   Clear
1:56 AM 63.0 °F 59.0 °F 87% 30.08 in 10.0 mi South 5.8 mph - N/A   Clear
2:56 AM 64.0 °F 59.0 °F 84% 30.09 in 10.0 mi SSE 3.5 mph - N/A   Overcast
3:56 AM 63.0 °F 59.0 °F 87% 30.09 in 10.0 mi Calm Calm - N/A   Overcast
4:56 AM 62.1 °F 59.0 °F 90% 30.09 in 10.0 mi Calm Calm - N/A   Overcast
5:56 AM 62.1 °F 57.9 °F 86% 30.10 in 10.0 mi ESE 3.5 mph - N/A   Overcast
6:56 AM 63.0 °F 59.0 °F 87% 30.12 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
7:56 AM 62.1 °F 59.0 °F 90% 30.13 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
8:56 AM 63.0 °F 59.0 °F 87% 30.14 in 10.0 mi SE 3.5 mph - N/A   Mostly Cloudy
9:56 AM 68.0 °F 60.1 °F 76% 30.14 in 10.0 mi ESE 5.8 mph - N/A   Mostly Cloudy
10:56 AM 75.0 °F 62.1 °F 64% 30.13 in 10.0 mi Variable 3.5 mph - N/A   Scattered Clouds
11:56 AM 75.9 °F 63.0 °F 64% 30.10 in 10.0 mi SE 8.1 mph - N/A   Scattered Clouds
12:56 PM 78.1 °F 60.1 °F 54% 30.07 in 10.0 mi South 9.2 mph 18.4 mph N/A   Clear
1:56 PM 78.1 °F 60.1 °F 54% 30.06 in 10.0 mi SE 11.5 mph - N/A   Clear
2:56 PM 73.9 °F 59.0 °F 59% 30.05 in 10.0 mi SSE 11.5 mph 18.4 mph N/A   Mostly Cloudy
3:56 PM 69.1 °F 61.0 °F 75% 30.04 in 10.0 mi ESE 9.2 mph - N/A   Mostly Cloudy
4:56 PM 66.9 °F 60.1 °F 79% 30.03 in 10.0 mi SE 10.4 mph 18.4 mph N/A   Overcast
5:56 PM 68.0 °F 57.0 °F 68% 30.04 in 10.0 mi SSE 8.1 mph - N/A   Overcast
6:56 PM 66.0 °F 57.9 °F 75% 30.06 in 10.0 mi SE 8.1 mph - N/A   Partly Cloudy
7:56 PM 66.0 °F 59.0 °F 78% 30.06 in 10.0 mi SSE 8.1 mph 17.3 mph N/A   Clear
8:56 PM 66.9 °F 60.1 °F 79% 30.06 in 10.0 mi SSE 10.4 mph 19.6 mph N/A   Clear
9:56 PM 66.0 °F 60.1 °F 81% 30.06 in 10.0 mi SSE 9.2 mph 18.4 mph N/A   Clear
10:56 PM 66.0 °F 60.1 °F 81% 30.08 in 10.0 mi SSE 3.5 mph - N/A   Partly Cloudy
11:56 PM 64.9 °F 60.1 °F 84% 30.07 in 10.0 mi SSE 3.5 mph - N/A   Overcast