Weather History for Seattle, WA

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Thursday, December 27, 2012

  Actual Average Record
Temperature  
Mean Temperature 42 °F 40 °F  
Max Temperature 46 °F 45 °F 58 °F (1994)
Min Temperature 38 °F 36 °F 20 °F (1968)
Degree Days  
Heating Degree Days 23 25  
Month to date heating degree days 617 660  
Since 1 July heating degree days 1644 1843  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 177 189  
Moisture  
Dew Point 37 °F    
Average Humidity 82    
Maximum Humidity 93    
Minimum Humidity 70    
Precipitation  
Precipitation 0.16 in 0.17 in 1.53 in (1998)
Month to date precipitation 6.79 4.71  
Year to date precipitation 48.20 36.85  
Snow  
Snow 0.00 in - 1.20 in (1965)
Month to date snowfall 0.6  
Since 1 July snowfall 0.6  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.09 in    
Wind  
Wind Speed 7 mph (SSW)    
Max Wind Speed 17 mph    
Max Gust Speed 22 mph    
Visibility 9 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 27, 2012 Rise Set
Actual Time 7:56 AM PST 4:25 PM PST
Civil Twilight 7:20 AM PST 5:00 PM PST
Nautical Twilight 6:41 AM PST 5:40 PM PST
Astronomical Twilight 6:04 AM PST 6:17 PM PST
Moon 4:15 PM PST (12/27) 7:09 AM PST (12/27)
Length of Visible Light 9h 40m
Length of Day
8h 28m
Full, 100% of the Moon is Illuminated
Dec 27
Full
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter

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 42.1 °F 34.2 °F 37.9 °F 85% 29.95 in 10.0 mi SSW 16.1 mph 21.9 mph 0.03 in Rain Light Rain
1:31 AM 42.8 °F 36.2 °F 37.4 °F 81% 29.95 in 10.0 mi SSW 12.7 mph - 0.01 in Rain Light Rain
1:53 AM 42.1 °F 34.9 °F 37.9 °F 85% 29.99 in 10.0 mi SSW 13.8 mph - 0.01 in Rain Light Rain
2:39 AM 42.8 °F 38.0 °F 39.2 °F 87% 29.98 in 10.0 mi SW 8.1 mph - 0.01 in Rain Light Rain
2:53 AM 42.1 °F 36.1 °F 39.0 °F 89% 30.01 in 9.0 mi SSW 10.4 mph - 0.01 in Rain Light Rain
3:27 AM 42.8 °F 37.5 °F 39.2 °F 87% 29.99 in 10.0 mi SSW 9.2 mph - N/A Rain Light Rain
3:41 AM 42.8 °F 38.0 °F 39.2 °F 87% 29.99 in 10.0 mi SSW 8.1 mph - 0.04 in Rain Light Rain
3:53 AM 42.1 °F 36.6 °F 39.0 °F 89% 30.02 in 10.0 mi SSW 9.2 mph - 0.05 in Rain Light Rain
4:04 AM 42.8 °F 38.0 °F 39.2 °F 87% 30.00 in 10.0 mi SSW 8.1 mph - 0.01 in Rain Light Rain
4:38 AM 42.8 °F 38.6 °F 39.2 °F 87% 30.00 in 10.0 mi SSW 6.9 mph - 0.02 in Rain Light Rain
4:53 AM 41.0 °F 37.1 °F 39.0 °F 93% 30.04 in 10.0 mi South 5.8 mph - 0.03 in Rain Light Rain
5:00 AM 41.0 °F 36.4 °F 39.2 °F 93% 30.01 in 10.0 mi SSW 6.9 mph - 0.00 in   Overcast
5:18 AM 42.8 °F 40.1 °F 39.2 °F 87% 30.02 in 10.0 mi South 4.6 mph - 0.00 in   Overcast
5:53 AM 41.0 °F 39.0 °F 39.0 °F 93% 30.06 in 8.0 mi SSE 3.5 mph - 0.00 in Rain Light Rain
6:17 AM 41.0 °F 39.0 °F 39.2 °F 93% 30.04 in 2.0 mi SE 3.5 mph - 0.00 in Rain Light Rain
6:42 AM 42.8 °F 40.1 °F 39.2 °F 87% 30.04 in 2.0 mi North 4.6 mph - 0.01 in Rain Light Rain
6:53 AM 41.0 °F 39.0 °F 37.9 °F 89% 30.07 in 2.0 mi Variable 3.5 mph - 0.02 in Rain Light Rain
7:36 AM 41.0 °F - 37.4 °F 87% 30.05 in 9.0 mi Calm Calm - 0.01 in   Overcast
7:53 AM 41.0 °F 38.0 °F 37.9 °F 89% 30.08 in 10.0 mi West 4.6 mph - 0.01 in   Overcast
8:53 AM 41.0 °F 38.0 °F 37.9 °F 89% 30.11 in 10.0 mi SW 4.6 mph - N/A   Overcast
9:07 AM 41.0 °F 37.1 °F 37.4 °F 87% 30.09 in 10.0 mi SW 5.8 mph - N/A   Overcast
9:53 AM 41.0 °F 35.2 °F 37.0 °F 86% 30.13 in 10.0 mi SW 9.2 mph - 0.00 in   Mostly Cloudy
10:53 AM 41.0 °F 39.0 °F 37.0 °F 86% 30.14 in 10.0 mi WSW 3.5 mph - N/A   Overcast
11:40 AM 42.8 °F 38.6 °F 39.2 °F 87% 30.11 in 10.0 mi SW 6.9 mph - N/A   Overcast
11:53 AM 43.0 °F 39.5 °F 39.0 °F 86% 30.14 in 10.0 mi WSW 5.8 mph - N/A   Overcast
12:53 PM 43.0 °F 39.5 °F 39.0 °F 86% 30.15 in 10.0 mi WSW 5.8 mph - N/A   Overcast
1:53 PM 45.0 °F 39.7 °F 37.9 °F 76% 30.14 in 10.0 mi SW 10.4 mph 19.6 mph 0.00 in   Mostly Cloudy
2:53 PM 45.0 °F 40.1 °F 37.0 °F 74% 30.15 in 10.0 mi SSW 9.2 mph - N/A   Mostly Cloudy
3:17 PM 44.6 °F 39.2 °F 37.4 °F 76% 30.13 in 10.0 mi SSW 10.4 mph - N/A   Mostly Cloudy
3:53 PM 44.6 °F 39.7 °F 35.6 °F 71% 30.14 in 10.0 mi SSW 9.2 mph - N/A   Mostly Cloudy
4:28 PM 42.8 °F 39.3 °F 35.6 °F 76% 30.14 in 10.0 mi South 5.8 mph - N/A   Mostly Cloudy
4:53 PM 43.0 °F 38.8 °F 36.0 °F 76% 30.17 in 10.0 mi South 6.9 mph - N/A   Mostly Cloudy
5:53 PM 42.1 °F 37.7 °F 35.1 °F 76% 30.18 in 10.0 mi South 6.9 mph - N/A   Mostly Cloudy
6:35 PM 42.8 °F 38.0 °F 33.8 °F 70% 30.14 in 10.0 mi South 8.1 mph - N/A   Overcast
6:53 PM 42.1 °F 37.7 °F 35.1 °F 76% 30.17 in 10.0 mi South 6.9 mph - N/A   Overcast
7:53 PM 39.9 °F 36.7 °F 34.0 °F 79% 30.18 in 10.0 mi South 4.6 mph - N/A   Overcast
8:19 PM 39.2 °F 35.9 °F 33.8 °F 81% 30.15 in 10.0 mi South 4.6 mph - N/A   Mostly Cloudy
8:53 PM 41.0 °F 37.1 °F 36.0 °F 82% 30.17 in 10.0 mi SE 5.8 mph - N/A   Overcast
9:53 PM 37.9 °F 34.4 °F 34.0 °F 86% 30.18 in 10.0 mi SSE 4.6 mph - N/A   Mostly Cloudy
10:53 PM 39.9 °F 35.8 °F 34.0 °F 79% 30.19 in 10.0 mi ESE 5.8 mph - N/A   Overcast
11:53 PM 39.0 °F 34.8 °F 33.1 °F 79% 30.19 in 10.0 mi SE 5.8 mph - N/A   Overcast