Weather History for KSMO - December, 2011

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Thursday, December 29, 2011

  Actual Average Record
Temperature  
Mean Temperature 58 °F -  
Max Temperature 68 °F 65 °F 87 °F (1963)
Min Temperature 48 °F 45 °F 35 °F (1954)
Degree Days  
Heating Degree Days 7    
Growing Degree Days 8 (Base 50)    
Moisture  
Dew Point 44 °F    
Average Humidity 68    
Maximum Humidity 100    
Minimum Humidity 26    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.04 in    
Wind  
Wind Speed 2 mph (South)    
Max Wind Speed 8 mph    
Max Gust Speed -    
Visibility 6 miles    
Events Fog    
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. 29, 2011 Rise Set
Actual Time 6:58 AM PST 4:53 PM PST
Civil Twilight 6:30 AM PST 5:20 PM PST
Nautical Twilight 5:59 AM PST 5:52 PM PST
Astronomical Twilight 5:29 AM PST 6:22 PM PST
Moon 10:08 AM PST 10:18 PM PST
Length of Visible Light 10h 50m
Length of Day
9h 54m
Waxing Crescent, 27% of the Moon is Illuminated
Dec 29
Waxing Crescent
Dec 31
First Quarter
Jan 8
Full
Jan 16
Last Quarter
Jan 22
New

Hourly Weather History & Observations

Time (PST) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:51 AM 52.0 °F 36.0 °F 54% 30.10 in 10.0 mi NNE 3.5 mph - N/A   Clear
1:51 AM 50.0 °F 36.0 °F 59% 30.08 in 10.0 mi NE 3.5 mph - N/A   Clear
3:51 AM 48.9 °F 36.0 °F 61% 30.07 in 10.0 mi Calm Calm - N/A   Clear
5:51 AM 48.9 °F 35.1 °F 59% 30.06 in 10.0 mi Calm Calm - N/A   Clear
6:51 AM 48.0 °F 36.0 °F 63% 30.07 in 10.0 mi East 4.6 mph - N/A   Clear
7:51 AM 52.0 °F 36.0 °F 54% 30.08 in 10.0 mi ENE 3.5 mph - N/A   Clear
8:51 AM 59.0 °F 37.0 °F 44% 30.09 in 10.0 mi Calm Calm - N/A   Clear
9:51 AM 64.0 °F 34.0 °F 33% 30.09 in 10.0 mi Variable 3.5 mph - N/A   Clear
10:51 AM 68.0 °F 32.0 °F 26% 30.08 in 10.0 mi Calm Calm - N/A   Clear
11:51 AM 66.9 °F 39.9 °F 37% 30.05 in 7.0 mi SSW 8.1 mph - N/A   Clear
12:51 PM 64.9 °F 45.0 °F 48% 30.01 in 7.0 mi SSW 5.8 mph - N/A   Clear
1:51 PM 68.0 °F 41.0 °F 37% 29.99 in 7.0 mi South 3.5 mph - N/A   Clear
2:51 PM 66.0 °F 44.1 °F 45% 29.98 in 6.0 mi SSW 5.8 mph - N/A   Haze
4:51 PM 59.0 °F 55.0 °F 87% 29.99 in 8.0 mi SW 4.6 mph - N/A   Clear
5:16 PM 57.2 °F 55.4 °F 94% 29.99 in 1.5 mi WSW 3.5 mph - N/A   Scattered Clouds
6:51 PM 55.0 °F 55.0 °F 100% 29.99 in 0.2 mi Calm Calm - N/A Fog Fog
7:51 PM 54.0 °F 54.0 °F 100% 30.00 in 0.2 mi Calm Calm - N/A Fog Fog
8:51 PM 53.1 °F 53.1 °F 100% 30.01 in 0.2 mi Calm Calm - N/A Fog Fog
9:51 PM 52.0 °F 51.1 °F 97% 30.01 in 0.2 mi Calm Calm - N/A Fog Fog
10:51 PM 51.1 °F 50.0 °F 96% 30.01 in 0.2 mi Calm Calm - N/A Fog Fog
10:58 PM 51.8 °F 50.0 °F 94% 30.02 in 2.0 mi Calm Calm - N/A   Mostly Cloudy
11:02 PM 51.8 °F 50.0 °F 94% 30.02 in 5.0 mi Calm Calm - N/A   Scattered Clouds
11:51 PM 51.1 °F 48.9 °F 92% 30.02 in 6.0 mi Calm Calm - N/A   Clear