Weather History for Seattle, WA

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Sunday, March 13, 2011

  Actual Average Record
Temperature  
Mean Temperature 48 °F 46 °F  
Max Temperature 53 °F 53 °F 70 °F (1979)
Min Temperature 43 °F 39 °F 28 °F (1967)
Degree Days  
Heating Degree Days 17 19  
Month to date heating degree days 276 255  
Since 1 July heating degree days 3633 3509  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 40 °F    
Average Humidity 78    
Maximum Humidity 92    
Minimum Humidity 64    
Precipitation  
Precipitation 0.33 in 0.12 in 0.70 in (1961)
Month to date precipitation 3.59 1.62  
Year to date precipitation 11.63 10.69  
Snow  
Snow 0.00 in - 1.70 in (1955)
Month to date snowfall 0.0  
Since 1 July snowfall 7.8  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.78 in    
Wind  
Wind Speed 12 mph (SE)    
Max Wind Speed 24 mph    
Max Gust Speed 35 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Mar. 13, 2011 Rise Set
Actual Time 7:26 AM PDT 7:11 PM PDT
Civil Twilight 6:56 AM PDT 7:42 PM PDT
Nautical Twilight 6:20 AM PDT 8:18 PM PDT
Astronomical Twilight 5:44 AM PDT 8:54 PM PDT
Moon 12:06 PM PDT (3/13) 3:29 AM PDT (3/13)
Length of Visible Light 12h 46m
Length of Day
11h 45m
First Quarter, 58% of the Moon is Illuminated
Mar 13
First Quarter
Mar 19
Full
Mar 26
Last Quarter
Apr 3
New
Apr 11
First Quarter

Hourly Weather History & Observations

Time (PDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 43.0 °F 38.2 °F 37.9 °F 82% 29.99 in 10.0 mi SE 8.1 mph - N/A   Mostly Cloudy
1:53 AM 44.1 °F 37.7 °F 37.0 °F 76% 29.94 in 10.0 mi East 12.7 mph - 0.00 in   Mostly Cloudy
3:53 AM 46.0 °F 41.4 °F 36.0 °F 68% 29.89 in 10.0 mi ESE 9.2 mph - N/A   Overcast
4:53 AM 45.0 °F 43.5 °F 37.0 °F 74% 29.87 in 10.0 mi Variable 3.5 mph - 0.01 in Rain Light Rain
5:53 AM 45.0 °F 40.6 °F 37.9 °F 76% 29.85 in 10.0 mi ESE 8.1 mph - 0.04 in Rain Light Rain
6:53 AM 46.0 °F 40.6 °F 39.0 °F 76% 29.82 in 10.0 mi ESE 11.5 mph - 0.01 in Rain Light Rain
7:53 AM 46.9 °F - 37.9 °F 71% 29.81 in 10.0 mi ESE 10.4 mph - 0.00 in Rain Light Rain
8:53 AM 48.0 °F - 37.9 °F 68% 29.79 in 10.0 mi ESE 13.8 mph - 0.00 in Rain Light Rain
9:53 AM 48.0 °F - 39.0 °F 71% 29.76 in 10.0 mi ESE 13.8 mph - 0.00 in Rain Light Rain
10:53 AM 48.0 °F - 39.9 °F 74% 29.74 in 7.0 mi ESE 15.0 mph - 0.04 in Rain Light Rain
11:53 AM 48.9 °F - 42.1 °F 77% 29.71 in 10.0 mi ESE 12.7 mph - 0.03 in   Overcast
12:53 PM 50.0 °F - 42.1 °F 74% 29.68 in 10.0 mi East 12.7 mph - 0.00 in Rain Light Rain
1:53 PM 51.1 °F - 41.0 °F 68% 29.65 in 10.0 mi ESE 12.7 mph - 0.00 in Rain Light Rain
2:53 PM 52.0 °F - 41.0 °F 66% 29.62 in 10.0 mi ESE 11.5 mph - 0.00 in   Overcast
3:53 PM 53.1 °F - 41.0 °F 64% 29.57 in 10.0 mi East 10.4 mph - N/A   Overcast
4:53 PM 51.1 °F - 44.1 °F 77% 29.64 in 4.0 mi SW 11.5 mph 18.4 mph 0.03 in Rain Rain
5:53 PM 48.9 °F - 44.1 °F 83% 29.68 in 10.0 mi South 20.7 mph 27.6 mph 0.09 in Rain Light Rain
6:53 PM 46.9 °F - 43.0 °F 86% 29.73 in 10.0 mi SSW 13.8 mph - 0.03 in Rain Light Rain
7:53 PM 45.0 °F 38.9 °F 43.0 °F 93% 29.77 in 10.0 mi South 12.7 mph - 0.02 in   Overcast
8:53 PM 45.0 °F 38.9 °F 42.1 °F 90% 29.78 in 10.0 mi South 12.7 mph 18.4 mph 0.01 in   Mostly Cloudy
9:53 PM 45.0 °F 39.7 °F 42.1 °F 90% 29.84 in 10.0 mi SSW 10.4 mph - 0.02 in Rain Light Rain
10:06 PM 44.6 °F 38.8 °F 41.0 °F 87% 29.82 in 10.0 mi South 11.5 mph 18.4 mph 0.00 in   Mostly Cloudy
10:53 PM 44.1 °F 36.8 °F 39.9 °F 85% 29.84 in 10.0 mi South 16.1 mph - 0.00 in   Mostly Cloudy
11:53 PM 45.0 °F 37.9 °F 37.9 °F 76% 29.82 in 10.0 mi SSE 16.1 mph - 0.00 in   Mostly Cloudy
12:53 AM 45.0 °F 37.9 °F 37.9 °F 76% 29.83 in 10.0 mi SE 16.1 mph - 0.00 in Rain Light Rain