Weather History for Seattle, WA

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Saturday, December 29, 2012

  Actual Average Record
Temperature  
Mean Temperature 40 °F 40 °F  
Max Temperature 41 °F 45 °F 54 °F (1949)
Min Temperature 38 °F 36 °F 8 °F (1968)
Degree Days  
Heating Degree Days 25 24  
Month to date heating degree days 664 709  
Since 1 July heating degree days 1691 1892  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 177 189  
Moisture  
Dew Point 33 °F    
Average Humidity 78    
Maximum Humidity 92    
Minimum Humidity 64    
Precipitation  
Precipitation 0.06 in 0.16 in 1.92 in (1996)
Month to date precipitation 6.85 5.03  
Year to date precipitation 48.26 37.17  
Snow  
Snow 0.00 in - 2.10 in (1971)
Month to date snowfall 0.6  
Since 1 July snowfall 0.6  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.19 in    
Wind  
Wind Speed 4 mph (ESE)    
Max Wind Speed 9 mph    
Max Gust Speed 13 mph    
Visibility 9 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Dec. 29, 2012 Rise Set
Actual Time 7:56 AM PST 4:26 PM PST
Civil Twilight 7:20 AM PST 5:02 PM PST
Nautical Twilight 6:41 AM PST 5:41 PM PST
Astronomical Twilight 6:04 AM PST 6:18 PM PST
Moon 6:12 PM PST (12/29) 8:26 AM PST (12/29)
Length of Visible Light 9h 41m
Length of Day
8h 30m
Full, 98% of the Moon is Illuminated
Dec 29
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter
Jan 26
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 39.0 °F 33.4 °F 28.9 °F 67% 30.18 in 10.0 mi ESE 8.1 mph - N/A   Mostly Cloudy
1:53 AM 39.0 °F 34.0 °F 28.9 °F 67% 30.19 in 10.0 mi ESE 6.9 mph - N/A   Overcast
2:53 AM 39.0 °F 33.4 °F 28.0 °F 65% 30.20 in 10.0 mi ESE 8.1 mph - N/A   Overcast
3:53 AM 39.2 °F 34.2 °F 28.4 °F 65% 30.17 in 10.0 mi ESE 6.9 mph - N/A   Overcast
4:53 AM 39.0 °F 34.8 °F 28.9 °F 67% 30.20 in 10.0 mi ESE 5.8 mph - N/A   Overcast
5:53 AM 39.0 °F 34.0 °F 28.0 °F 65% 30.20 in 10.0 mi ESE 6.9 mph - N/A   Overcast
6:53 AM 39.0 °F 34.0 °F 28.0 °F 65% 30.20 in 10.0 mi SE 6.9 mph - N/A   Overcast
7:17 AM 39.2 °F 35.9 °F 28.4 °F 65% 30.17 in 10.0 mi ESE 4.6 mph - N/A   Overcast
7:53 AM 39.0 °F 35.7 °F 28.9 °F 67% 30.20 in 10.0 mi ESE 4.6 mph - N/A   Overcast
8:53 AM 39.0 °F - 28.9 °F 67% 30.21 in 10.0 mi Calm Calm - N/A   Overcast
9:31 AM 39.2 °F 37.0 °F 28.4 °F 65% 30.19 in 10.0 mi ESE 3.5 mph - N/A   Overcast
9:53 AM 39.9 °F 37.8 °F 30.0 °F 68% 30.23 in 10.0 mi SE 3.5 mph - N/A   Overcast
10:53 AM 39.0 °F 34.8 °F 30.9 °F 73% 30.21 in 10.0 mi SE 5.8 mph - 0.00 in Rain Light Rain
11:53 AM 39.9 °F - 34.0 °F 79% 30.19 in 10.0 mi Calm Calm - 0.01 in   Overcast
12:48 PM 39.2 °F 37.0 °F 35.6 °F 87% 30.16 in 7.0 mi South 3.5 mph - N/A Rain Light Rain
12:53 PM 39.9 °F - 35.1 °F 83% 30.19 in 7.0 mi Calm Calm - 0.00 in Rain Light Rain
1:53 PM 39.9 °F - 33.1 °F 77% 30.17 in 10.0 mi Calm Calm - 0.03 in Rain Light Rain
2:32 PM 39.2 °F - 33.8 °F 81% 30.15 in 10.0 mi Calm Calm - 0.01 in Rain Light Rain
2:53 PM 39.2 °F - 33.8 °F 81% 30.15 in 10.0 mi Calm Calm - N/A Rain Light Rain
3:03 PM 39.2 °F 37.0 °F 33.8 °F 81% 30.15 in 10.0 mi ESE 3.5 mph - 0.00 in Rain Light Rain
3:30 PM 39.2 °F - 35.6 °F 87% 30.15 in 10.0 mi Calm Calm - 0.00 in   Overcast
3:53 PM 39.0 °F 35.7 °F 35.1 °F 86% 30.18 in 10.0 mi ESE 4.6 mph - 0.00 in   Overcast
4:53 PM 37.9 °F 34.4 °F 35.1 °F 89% 30.19 in 10.0 mi SSE 4.6 mph - 0.00 in   Overcast
5:53 PM 39.0 °F - 36.0 °F 89% 30.19 in 10.0 mi Calm Calm - N/A   Overcast
6:41 PM 39.2 °F - 35.6 °F 87% 30.17 in 10.0 mi Calm Calm - N/A   Overcast
6:53 PM 39.0 °F - 35.1 °F 86% 30.20 in 10.0 mi Calm Calm - N/A   Overcast
7:53 PM 39.0 °F 34.8 °F 35.1 °F 86% 30.20 in 9.0 mi ESE 5.8 mph - 0.00 in   Overcast
8:53 PM 39.0 °F - 36.0 °F 89% 30.22 in 8.0 mi Calm Calm - 0.00 in Rain Light Rain
9:50 PM 39.2 °F - 35.6 °F 87% 30.20 in 7.0 mi Calm Calm - N/A   Overcast
9:53 PM 39.2 °F - 35.6 °F 87% 30.21 in 7.0 mi Calm Calm - N/A   Overcast
10:10 PM 39.2 °F 35.9 °F 35.6 °F 87% 30.21 in 6.0 mi ENE 4.6 mph - N/A   Overcast
10:33 PM 39.2 °F 35.0 °F 35.6 °F 87% 30.21 in 4.0 mi NE 5.8 mph - N/A   Overcast
10:53 PM 39.0 °F 35.7 °F 36.0 °F 89% 30.25 in 5.0 mi North 4.6 mph - N/A   Mostly Cloudy
11:53 PM 39.0 °F 34.8 °F 36.0 °F 89% 30.25 in 5.0 mi NNE 5.8 mph - N/A   Mostly Cloudy