Weather History for Seattle, WA

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Sunday, December 8, 2013

  Actual Average Record
Temperature  
Mean Temperature 28 °F 41 °F  
Max Temperature 36 °F 46 °F 59 °F (1957)
Min Temperature 20 °F 36 °F 13 °F (1972)
Degree Days  
Heating Degree Days 37 24  
Month to date heating degree days 246 188  
Since 1 July heating degree days 1268 1371  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 385 189  
Moisture  
Dew Point 11 °F    
Average Humidity 49    
Maximum Humidity 57    
Minimum Humidity 40    
Precipitation  
Precipitation 0.00 in 0.18 in 1.61 in (1971)
Month to date precipitation 0.30 1.53  
Year to date precipitation 31.20 33.67  
Snow  
Snow 0.00 in - 2.20 in (1971)
Month to date snowfall T  
Since 1 July snowfall T  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.53 in    
Wind  
Wind Speed 5 mph (ESE)    
Max Wind Speed 9 mph    
Max Gust Speed 10 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Dec. 08, 2013 Rise Set
Actual Time 7:44 AM PST 4:18 PM PST
Civil Twilight 7:08 AM PST 4:53 PM PST
Nautical Twilight 6:29 AM PST 5:32 PM PST
Astronomical Twilight 5:52 AM PST 6:10 PM PST
Moon 11:47 AM PST (12/8) 11:36 PM PST (12/8)
Length of Visible Light 9h 45m
Length of Day
8h 34m
Waxing Crescent, 41% of the Moon is Illuminated
Dec 8
Waxing Crescent
Dec 9
First Quarter
Dec 17
Full
Dec 25
Last Quarter
Jan 1
New

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 21.9 °F 11.7 °F 7.0 °F 53% 30.45 in 10.0 mi SE 9.2 mph - N/A   Clear
1:53 AM 21.0 °F 12.4 °F 8.1 °F 57% 30.46 in 10.0 mi SE 6.9 mph - N/A   Clear
2:53 AM 19.9 °F 12.1 °F 7.0 °F 57% 30.48 in 10.0 mi ESE 5.8 mph - N/A   Partly Cloudy
3:53 AM 21.9 °F 12.5 °F 8.1 °F 55% 30.48 in 10.0 mi SE 8.1 mph - N/A   Overcast
4:53 AM 23.0 °F 14.7 °F 7.0 °F 50% 30.48 in 10.0 mi SE 6.9 mph - N/A   Overcast
5:53 AM 23.0 °F 14.7 °F 8.1 °F 53% 30.50 in 10.0 mi SE 6.9 mph - N/A   Clear
6:53 AM 24.1 °F 18.2 °F 9.0 °F 53% 30.51 in 10.0 mi SE 4.6 mph - N/A   Mostly Cloudy
7:53 AM 24.1 °F 16.0 °F 10.0 °F 55% 30.52 in 10.0 mi SE 6.9 mph - N/A   Overcast
8:53 AM 25.0 °F 18.1 °F 10.0 °F 53% 30.53 in 10.0 mi SE 5.8 mph - N/A   Mostly Cloudy
9:53 AM 28.0 °F - 12.9 °F 53% 30.54 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
10:53 AM 30.0 °F - 15.1 °F 54% 30.55 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
11:53 AM 32.0 °F - 12.9 °F 45% 30.53 in 10.0 mi Calm Calm - N/A   Scattered Clouds
12:53 PM 33.1 °F 28.7 °F 16.0 °F 50% 30.53 in 10.0 mi West 4.6 mph - N/A   Scattered Clouds
1:53 PM 35.1 °F 31.0 °F 14.0 °F 42% 30.53 in 10.0 mi Variable 4.6 mph - N/A   Mostly Cloudy
2:53 PM 35.1 °F 31.0 °F 14.0 °F 42% 30.54 in 10.0 mi North 4.6 mph - N/A   Mostly Cloudy
3:53 PM 33.1 °F 27.7 °F 12.9 °F 43% 30.55 in 10.0 mi NNE 5.8 mph - N/A   Partly Cloudy
4:53 PM 30.9 °F 22.8 °F 12.9 °F 47% 30.56 in 10.0 mi North 9.2 mph - N/A   Partly Cloudy
5:53 PM 28.0 °F - 12.9 °F 53% 30.56 in 10.0 mi Calm Calm - N/A   Clear
6:53 PM 30.9 °F - 14.0 °F 50% 30.55 in 10.0 mi Calm Calm - N/A   Clear
7:53 PM 30.0 °F 26.5 °F 12.9 °F 49% 30.56 in 10.0 mi East 3.5 mph - N/A   Clear
8:53 PM 28.0 °F 21.7 °F 12.9 °F 53% 30.58 in 10.0 mi ESE 5.8 mph - N/A   Clear
9:53 PM 27.0 °F 21.6 °F 12.0 °F 53% 30.59 in 10.0 mi SE 4.6 mph - N/A   Clear
10:53 PM 26.1 °F 19.4 °F 12.0 °F 55% 30.61 in 10.0 mi ESE 5.8 mph - N/A   Clear
10:57 PM 26.6 °F 20.0 °F 12.2 °F 55% 30.57 in 10.0 mi SE 5.8 mph - N/A   Clear
11:53 PM 25.0 °F 17.1 °F 12.9 °F 60% 30.59 in 10.0 mi SE 6.9 mph - N/A   Clear