Seattle, WA

1:37 PM PST on January 23, 2017 (GMT -0800)
Seattle-Tacoma International

Weather History for KSEA - December, 2014

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Friday, December 12, 2014

  Actual Average Record
Temperature  
Mean Temperature 49 °F 40 °F  
Max Temperature 52 °F 46 °F 60 °F (1960)
Min Temperature 45 °F 35 °F 22 °F (1972)
Degree Days  
Heating Degree Days 16 25  
Month to date heating degree days 209 285  
Since 1 July heating degree days 1049 1468  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 369 189  
Moisture  
Dew Point 43 °F    
Average Humidity 80    
Maximum Humidity 89    
Minimum Humidity 71    
Precipitation  
Precipitation T in 0.16 in 2.19 in (2010)
Month to date precipitation 1.97 2.20  
Year to date precipitation 45.68 34.34  
Snow  
Snow 0.00 in - 2.60 in (1975)
Month to date snowfall 0.0  
Since 1 July snowfall 0.8  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.86 in    
Wind  
Wind Speed 8 mph (South)    
Max Wind Speed 26 mph    
Max Gust Speed 35 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Date:

Astronomy

Dec. 12, 2014 Rise Set
Actual Time 7:47 AM PST 4:18 PM PST
Civil Twilight 7:11 AM PST 4:54 PM PST
Nautical Twilight 6:32 AM PST 5:33 PM PST
Astronomical Twilight 5:55 AM PST 6:10 PM PST
Moon 10:49 PM PST (12/12) 11:26 AM PST (12/12)
Length of Visible Light 9h 42m
Length of Day
8h 30m
Waning Gibbous, 66% of the Moon is Illuminated
Dec 12
Waning Gibbous
Dec 14
Last Quarter
Dec 21
New
Dec 28
First Quarter
Jan 4
Full

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 48.9 °F - 44.1 °F 83% 29.59 in 10.0 mi South 19.6 mph 29.9 mph 0.00 in   Mostly Cloudy
1:53 AM 48.9 °F - 43.0 °F 80% 29.62 in 10.0 mi SSW 17.3 mph 26.5 mph N/A   Scattered Clouds
2:53 AM 48.9 °F - 42.1 °F 77% 29.66 in 10.0 mi South 11.5 mph - N/A   Mostly Cloudy
3:53 AM 48.9 °F - 43.0 °F 80% 29.70 in 10.0 mi South 11.5 mph - N/A   Overcast
4:53 AM 48.9 °F - 43.0 °F 80% 29.71 in 10.0 mi South 10.4 mph - N/A   Mostly Cloudy
5:53 AM 48.9 °F - 43.0 °F 80% 29.73 in 10.0 mi South 9.2 mph - N/A   Mostly Cloudy
6:53 AM 48.9 °F - 42.1 °F 77% 29.73 in 10.0 mi South 13.8 mph - N/A   Overcast
7:53 AM 48.9 °F - 42.1 °F 77% 29.76 in 10.0 mi South 10.4 mph - N/A   Overcast
8:53 AM 48.9 °F - 43.0 °F 80% 29.79 in 10.0 mi SSW 6.9 mph - N/A   Mostly Cloudy
9:53 AM 48.9 °F - 43.0 °F 80% 29.82 in 10.0 mi SSW 5.8 mph - N/A   Mostly Cloudy
10:01 AM 48.2 °F - 44.6 °F 87% 29.81 in 10.0 mi SW 6.9 mph - N/A   Mostly Cloudy
10:28 AM 48.2 °F - 42.8 °F 82% 29.81 in 10.0 mi SW 6.9 mph - N/A   Mostly Cloudy
10:53 AM 50.0 °F - 44.1 °F 80% 29.83 in 10.0 mi South 9.2 mph - N/A   Mostly Cloudy
11:53 AM 51.1 °F - 45.0 °F 80% 29.84 in 10.0 mi SSW 8.1 mph - N/A   Mostly Cloudy
12:53 PM 51.1 °F - 44.1 °F 77% 29.85 in 10.0 mi SSW 6.9 mph - N/A   Mostly Cloudy
1:53 PM 52.0 °F - 44.1 °F 74% 29.86 in 10.0 mi South 6.9 mph - N/A   Mostly Cloudy
2:53 PM 51.1 °F - 43.0 °F 74% 29.88 in 10.0 mi South 6.9 mph - N/A   Mostly Cloudy
3:53 PM 50.0 °F - 44.1 °F 80% 29.90 in 10.0 mi SSW 5.8 mph - N/A   Mostly Cloudy
4:53 PM 46.9 °F - 42.1 °F 83% 29.93 in 10.0 mi SSW 4.6 mph - N/A   Scattered Clouds
5:53 PM 46.9 °F - 42.1 °F 83% 29.95 in 10.0 mi South 4.6 mph - N/A   Scattered Clouds
6:53 PM 46.0 °F 43.9 °F 42.1 °F 86% 29.97 in 10.0 mi South 4.6 mph - N/A   Mostly Cloudy
7:53 PM 45.0 °F 42.6 °F 41.0 °F 86% 29.99 in 10.0 mi South 4.6 mph - N/A   Scattered Clouds
8:22 PM 46.4 °F 45.2 °F 42.8 °F 87% 29.98 in 10.0 mi South 3.5 mph - N/A   Mostly Cloudy
8:44 PM 46.4 °F 44.3 °F 42.8 °F 87% 29.99 in 10.0 mi South 4.6 mph - N/A   Overcast
8:53 PM 46.9 °F - 42.1 °F 83% 30.01 in 10.0 mi SSW 4.6 mph - N/A   Overcast
9:20 PM 46.4 °F 42.9 °F 42.8 °F 87% 30.00 in 10.0 mi South 6.9 mph - N/A   Mostly Cloudy
9:38 PM 46.4 °F 42.9 °F 42.8 °F 87% 30.01 in 10.0 mi South 6.9 mph - N/A   Mostly Cloudy
9:53 PM 46.9 °F - 42.1 °F 83% 30.04 in 10.0 mi South 4.6 mph - N/A   Overcast
10:53 PM 46.0 °F 43.9 °F 42.1 °F 86% 30.06 in 10.0 mi SSE 4.6 mph - N/A   Overcast
11:53 PM 46.0 °F 43.9 °F 41.0 °F 83% 30.08 in 10.0 mi SSE 4.6 mph - N/A   Overcast