Seattle Boeing, WA
on Monday, December 17, 2012

Monday
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Daily Summary
 ActualAverage (KSEA)Record (KSEA)
Temperature
Mean Temperature °F / °C 40°F / 4°C  
Max Temperature 48°F / 9°C 45°F / 7°C 57°F / 13°C (1994)
Min Temperature 37°F / 3°C 35°F / 2°C 11°F / -11°C (1964)
Degree Days
Heating Degree Days 22 25  
Month to date heating degree days 410  
Since 1 July heating degree days 1593  
Cooling Degree Days 0 0  
Month to date cooling degree days 0  
Year to date cooling degree days 189  
Moisture
Dew Point 35°F / 2°C   
Average Humidity 73    
Maximum Humidity 86    
Minimum Humidity 60    
Precipitation
Precipitation 0.11 in / 2.79 cm 0.16 in / 4.06 cm 1.61 in / 4.09 cm (1979)
Month to date precipitation 3.03  
Year to date precipitation 35.17  
Snow
Snow 0.00 in / 0.00 cm in / cm 0.10 in / 0.25 cm (1992)
Month to date snowfall  
Since 1 July snowfall  
Snow Depth in / cm   
Wind
Wind Speed 15 mph / 24 km/h   
Max Wind Speed 23 mph / 37 km/h   
Max Gust Speed 39 mph / 63 km/h   
Visibility 10 miles / 16 kilometers   
Events Rain   

Key: T is trace of precipitation, MM is missing value
Source: NWS Daily Summary
Time(PST)TemperatureDew PointHumidity Pressure Visibility Wind DirectionWind SpeedGust SpeedPrecipitationEvents Conditions
12:53 AM 45.0°F / 7.2°C 41.0°F / 5.0°C 86% 28.95 in / 980.4 hPa 10.0 miles / 16.1 kilometers SE 13.8 mph / 22.2 km/h - 0.06 in / 1.5 cm Rain Light Rain
1:53 AM 46.9°F / 8.3°C 41.0°F / 5.0°C 80% 28.94 in / 979.9 hPa 10.0 miles / 16.1 kilometers SSE 17.3 mph / 27.8 km/h 25.3 mph / 40.7 km/h 0.02 in / 0.5 cm Rain Light Rain
2:53 AM 48.0°F / 8.9°C 43.0°F / 6.1°C 83% 29.00 in / 981.9 hPa 10.0 miles / 16.1 kilometers South 16.1 mph / 25.9 km/h 25.3 mph / 40.7 km/h 0.01 in / 0.3 cm Rain Light Rain
3:53 AM 46.9°F / 8.3°C 42.1°F / 5.6°C 83% 29.03 in / 983.0 hPa 10.0 miles / 16.1 kilometers South 18.4 mph / 29.6 km/h 29.9 mph / 48.2 km/h 0.02 in / 0.5 cm Rain Light Rain
4:53 AM 45.0°F / 7.2°C 37.0°F / 2.8°C 74% 29.10 in / 985.4 hPa 10.0 miles / 16.1 kilometers SSW 23.0 mph / 37.0 km/h 39.1 mph / 63.0 km/h N/A   Mostly Cloudy
5:53 AM 45.0°F / 7.2°C 37.0°F / 2.8°C 74% 29.21 in / 989.1 hPa 10.0 miles / 16.1 kilometers SSW 16.1 mph / 25.9 km/h 36.8 mph / 59.3 km/h N/A   Scattered Clouds
6:53 AM 46.0°F / 7.8°C 35.1°F / 1.7°C 66% 29.28 in / 991.5 hPa 10.0 miles / 16.1 kilometers SSW 19.6 mph / 31.5 km/h 33.4 mph / 53.7 km/h N/A   Scattered Clouds
7:53 AM 45.0°F / 7.2°C 36.0°F / 2.2°C 71% 29.36 in / 994.2 hPa 10.0 miles / 16.1 kilometers SW 17.3 mph / 27.8 km/h 29.9 mph / 48.2 km/h N/A   Clear
8:53 AM 44.1°F / 6.7°C 36.0°F / 2.2°C 73% 29.44 in / 996.8 hPa 10.0 miles / 16.1 kilometers SSW 17.3 mph / 27.8 km/h 31.1 mph / 50.0 km/h N/A   Scattered Clouds
9:53 AM 44.1°F / 6.7°C 34.0°F / 1.1°C 68% 29.51 in / 999.2 hPa 10.0 miles / 16.1 kilometers SSW 12.7 mph / 20.4 km/h 26.5 mph / 42.6 km/h N/A   Mostly Cloudy
10:53 AM 44.1°F / 6.7°C 33.1°F / 0.6°C 65% 29.55 in / 1000.7 hPa 10.0 miles / 16.1 kilometers SSW 11.5 mph / 18.5 km/h 19.6 mph / 31.5 km/h N/A   Mostly Cloudy
11:53 AM 44.1°F / 6.7°C 33.1°F / 0.6°C 65% 29.60 in / 1002.1 hPa 10.0 miles / 16.1 kilometers SSW 13.8 mph / 22.2 km/h 25.3 mph / 40.7 km/h N/A   Mostly Cloudy
12:53 PM 44.1°F / 6.7°C 32.0°F / 0.0°C 63% 29.63 in / 1003.4 hPa 10.0 miles / 16.1 kilometers SSW 15.0 mph / 24.1 km/h 24.2 mph / 38.9 km/h N/A   Clear
1:53 PM 45.0°F / 7.2°C 32.0°F / 0.0°C 60% 29.66 in / 1004.3 hPa 10.0 miles / 16.1 kilometers SSW 15.0 mph / 24.1 km/h 25.3 mph / 40.7 km/h N/A   Mostly Cloudy
4:53 PM 39.0°F / 3.9°C 30.0°F / -1.1°C 70% 29.76 in / 1007.8 hPa 10.0 miles / 16.1 kilometers SW 10.4 mph / 16.7 km/h 16.1 mph / 25.9 km/h N/A   Mostly Cloudy
5:53 PM 39.0°F / 3.9°C 30.9°F / -0.6°C 73% 29.80 in / 1008.9 hPa 10.0 miles / 16.1 kilometers Variable 3.5 mph / 5.6 km/h - N/A   Scattered Clouds
6:53 PM 39.0°F / 3.9°C 30.9°F / -0.6°C 73% 29.82 in / 1009.6 hPa 10.0 miles / 16.1 kilometers Variable 6.9 mph / 11.1 km/h - N/A   Mostly Cloudy
7:53 PM 39.0°F / 3.9°C 30.9°F / -0.6°C 73% 29.85 in / 1010.6 hPa 10.0 miles / 16.1 kilometers SSW 9.2 mph / 14.8 km/h 21.9 mph / 35.2 km/h N/A   Mostly Cloudy
8:53 PM 37.9°F / 3.3°C 30.9°F / -0.6°C 76% 29.86 in / 1011.1 hPa 10.0 miles / 16.1 kilometers SE 10.4 mph / 16.7 km/h 17.3 mph / 27.8 km/h N/A   Overcast
9:53 PM 37.9°F / 3.3°C 32.0°F / 0.0°C 79% 29.89 in / 1012.0 hPa 10.0 miles / 16.1 kilometers SSE 13.8 mph / 22.2 km/h - N/A   Overcast
10:53 PM 37.9°F / 3.3°C 32.0°F / 0.0°C 79% 29.88 in / 1011.9 hPa 10.0 miles / 16.1 kilometers South 13.8 mph / 22.2 km/h 23.0 mph / 37.0 km/h N/A   Mostly Cloudy
11:53 PM 37.0°F / 2.8°C 30.9°F / -0.6°C 79% 29.89 in / 1012.0 hPa 10.0 miles / 16.1 kilometers South 10.4 mph / 16.7 km/h 21.9 mph / 35.2 km/h N/A   Mostly Cloudy
Moon Phase
Dec. 17 Dec. 20 Dec. 28 Jan. 04 Jan. 11
Sunrise:07:52 AM (PST) Moon Rise:10:45 AM (PST)12/17
Sunset:04:19 PM (PST) Moon Set:10:07 PM (PST)12/17

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