Weather History for KSEA - June, 2013

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Saturday, June 15, 2013

  Actual Average Record
Temperature  
Mean Temperature 64 °F 61 °F  
Max Temperature 78 °F 70 °F 88 °F (1963)
Min Temperature 50 °F 52 °F 43 °F (1949)
Degree Days  
Heating Degree Days 1 5  
Month to date heating degree days 36 86  
Since 1 June heating degree days 36 86  
Since 1 July heating degree days 4319 4639  
Cooling Degree Days 0 1  
Month to date cooling degree days 8 3  
Year to date cooling degree days 21 9  
Since 1 June cooling degree days 8 3  
Growing Degree Days 14 (Base 50)    
Moisture  
Dew Point 48 °F    
Average Humidity 58    
Maximum Humidity 83    
Minimum Humidity 33    
Precipitation  
Precipitation 0.00 in 0.05 in 0.37 in (1954)
Month to date precipitation 0.05 0.91  
Year to date precipitation 16.80 18.35  
Sea Level Pressure  
Sea Level Pressure 30.00 in    
Wind  
Wind Speed 6 mph (NNW)    
Max Wind Speed 14 mph    
Max Gust Speed 17 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jun. 15, 2013 Rise Set
Actual Time 5:11 AM PDT 9:08 PM PDT
Civil Twilight 4:31 AM PDT 9:48 PM PDT
Nautical Twilight 3:35 AM PDT 10:44 PM PDT
Astronomical Twilight 2:08 AM PDT 12:11 AM PDT
Moon 12:17 PM PDT (6/15) 12:22 AM PDT (6/15)
Length of Visible Light 17h 17m
Length of Day
15h 56m
Waxing Crescent, 40% of the Moon is Illuminated
Jun 15
Waxing Crescent
Jun 16
First Quarter
Jun 23
Full
Jun 29
Last Quarter
Jul 8
New

Hourly Weather History & Observations

Time (PDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 57.9 °F 46.9 °F 67% 30.06 in 10.0 mi NNE 10.4 mph - N/A   Clear
1:53 AM 55.9 °F 48.0 °F 75% 30.04 in 10.0 mi North 6.9 mph - N/A   Clear
2:53 AM 55.0 °F 48.0 °F 77% 30.04 in 10.0 mi North 6.9 mph - N/A   Clear
3:53 AM 53.1 °F 48.0 °F 83% 30.03 in 10.0 mi North 6.9 mph - N/A   Clear
4:53 AM 51.1 °F 46.9 °F 86% 30.02 in 10.0 mi North 5.8 mph - N/A   Partly Cloudy
5:53 AM 53.1 °F 48.0 °F 83% 30.02 in 10.0 mi North 3.5 mph - N/A   Mostly Cloudy
6:13 AM 53.6 °F 48.2 °F 82% 30.00 in 10.0 mi North 5.8 mph - N/A   Mostly Cloudy
6:53 AM 54.0 °F 48.9 °F 83% 30.01 in 10.0 mi North 6.9 mph - N/A   Mostly Cloudy
7:38 AM 57.2 °F 50.0 °F 77% 29.99 in 10.0 mi North 5.8 mph - N/A   Mostly Cloudy
7:53 AM 57.9 °F 50.0 °F 75% 30.01 in 10.0 mi NNW 5.8 mph - N/A   Mostly Cloudy
8:53 AM 61.0 °F 48.9 °F 64% 30.01 in 10.0 mi North 6.9 mph - N/A   Mostly Cloudy
9:53 AM 64.9 °F 48.0 °F 54% 30.00 in 10.0 mi North 6.9 mph - N/A   Mostly Cloudy
10:53 AM 66.9 °F 50.0 °F 54% 29.99 in 10.0 mi North 6.9 mph - N/A   Mostly Cloudy
11:53 AM 70.0 °F 50.0 °F 49% 29.99 in 10.0 mi North 6.9 mph - N/A   Mostly Cloudy
12:53 PM 72.0 °F 51.1 °F 48% 29.98 in 10.0 mi Variable 6.9 mph - N/A   Mostly Cloudy
1:53 PM 72.0 °F 51.1 °F 48% 29.97 in 10.0 mi WNW 11.5 mph - N/A   Mostly Cloudy
2:53 PM 73.9 °F 48.9 °F 41% 29.96 in 10.0 mi West 11.5 mph - N/A   Mostly Cloudy
3:53 PM 75.0 °F 46.9 °F 37% 29.96 in 10.0 mi West 6.9 mph - N/A   Mostly Cloudy
4:53 PM 75.9 °F 48.0 °F 37% 29.96 in 10.0 mi WNW 4.6 mph - N/A   Mostly Cloudy
5:53 PM 77.0 °F 46.9 °F 34% 29.96 in 10.0 mi West 5.8 mph - N/A   Mostly Cloudy
6:53 PM 73.9 °F 48.0 °F 40% 29.96 in 10.0 mi West 5.8 mph - N/A   Mostly Cloudy
7:53 PM 72.0 °F 46.9 °F 41% 29.97 in 10.0 mi NW 5.8 mph - N/A   Mostly Cloudy
8:53 PM 69.1 °F 46.9 °F 45% 29.98 in 10.0 mi NW 5.8 mph - N/A   Scattered Clouds
9:53 PM 68.0 °F 45.0 °F 43% 30.00 in 10.0 mi North 3.5 mph - N/A   Partly Cloudy
10:53 PM 63.0 °F 46.9 °F 56% 30.01 in 10.0 mi SW 5.8 mph - N/A   Clear
11:53 PM 61.0 °F 48.9 °F 64% 30.03 in 10.0 mi SW 4.6 mph - N/A   Partly Cloudy