Weather History for KSEA - July, 2013

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Tuesday, July 9, 2013

  Actual Average Record
Temperature  
Mean Temperature 73 °F 65 °F  
Max Temperature 86 °F 75 °F 93 °F (2010)
Min Temperature 59 °F 55 °F 48 °F (1960)
Degree Days  
Heating Degree Days 0 2  
Month to date heating degree days 1 20  
Since 1 June heating degree days 50 164  
Since 1 July heating degree days 1 20  
Cooling Degree Days 8 2  
Month to date cooling degree days 41 14  
Year to date cooling degree days 103 41  
Since 1 June cooling degree days 90 35  
Growing Degree Days 22 (Base 50)    
Moisture  
Dew Point 54 °F    
Average Humidity 58    
Maximum Humidity 84    
Minimum Humidity 32    
Precipitation  
Precipitation 0.00 in 0.02 in 0.81 in (1995)
Month to date precipitation 0.00 0.26  
Year to date precipitation 18.05 19.27  
Sea Level Pressure  
Sea Level Pressure 30.10 in    
Wind  
Wind Speed 6 mph (NNW)    
Max Wind Speed 14 mph    
Max Gust Speed 18 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jul. 09, 2013 Rise Set
Actual Time 5:22 AM PDT 9:06 PM PDT
Civil Twilight 4:43 AM PDT 9:45 PM PDT
Nautical Twilight 3:49 AM PDT 10:38 PM PDT
Astronomical Twilight 2:33 AM PDT 11:53 PM PDT
Moon 7:01 AM PDT (7/9) 9:34 PM PDT (7/9)
Length of Visible Light 17h 02m
Length of Day
15h 43m
New Moon, 2% of the Moon is Illuminated
Jul 9
New Moon
Jul 15
First Quarter
Jul 22
Full
Jul 29
Last Quarter
Aug 6
New

Hourly Weather History & Observations

Time (PDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 69.1 °F - 55.9 °F 63% 30.12 in 10.0 mi NNE 5.8 mph - N/A   Clear
1:53 AM 64.9 °F - 55.0 °F 70% 30.12 in 10.0 mi North 3.5 mph - N/A   Clear
2:53 AM 64.0 °F - 55.0 °F 73% 30.12 in 10.0 mi Calm Calm - N/A   Clear
3:53 AM 61.0 °F - 55.0 °F 81% 30.12 in 10.0 mi Calm Calm - N/A   Clear
4:53 AM 60.1 °F - 54.0 °F 80% 30.12 in 10.0 mi Calm Calm - N/A   Clear
5:53 AM 60.1 °F - 54.0 °F 80% 30.12 in 10.0 mi Calm Calm - N/A   Clear
6:53 AM 63.0 °F - 55.9 °F 78% 30.13 in 10.0 mi Calm Calm - N/A   Clear
7:53 AM 68.0 °F - 55.0 °F 63% 30.14 in 10.0 mi Calm Calm - N/A   Clear
8:53 AM 71.1 °F - 57.0 °F 61% 30.15 in 10.0 mi Calm Calm - N/A   Partly Cloudy
9:53 AM 72.0 °F - 55.9 °F 57% 30.14 in 10.0 mi WNW 4.6 mph - N/A   Partly Cloudy
10:53 AM 73.0 °F - 55.9 °F 55% 30.13 in 10.0 mi West 6.9 mph - N/A   Partly Cloudy
11:53 AM 77.0 °F - 55.9 °F 48% 30.13 in 10.0 mi West 6.9 mph - N/A   Partly Cloudy
12:53 PM 78.1 °F - 55.9 °F 46% 30.11 in 10.0 mi WNW 9.2 mph - N/A   Partly Cloudy
1:53 PM 80.1 °F 80.1 °F 55.0 °F 42% 30.10 in 10.0 mi WNW 10.4 mph - N/A   Partly Cloudy
2:53 PM 82.9 °F 81.9 °F 54.0 °F 37% 30.09 in 10.0 mi WNW 8.1 mph - N/A   Partly Cloudy
3:53 PM 84.9 °F 83.3 °F 54.0 °F 34% 30.08 in 10.0 mi NW 6.9 mph - N/A   Partly Cloudy
4:53 PM 84.9 °F 83.3 °F 54.0 °F 34% 30.07 in 10.0 mi NW 10.4 mph - N/A   Partly Cloudy
5:53 PM 84.9 °F - 51.1 °F 31% 30.05 in 10.0 mi NW 10.4 mph - N/A   Partly Cloudy
6:53 PM 82.9 °F - 51.1 °F 33% 30.04 in 10.0 mi North 10.4 mph - N/A   Partly Cloudy
7:53 PM 81.0 °F - 52.0 °F 36% 30.03 in 10.0 mi North 9.2 mph - N/A   Partly Cloudy
8:53 PM 78.1 °F - 54.0 °F 43% 30.03 in 10.0 mi NNE 11.5 mph - N/A   Partly Cloudy
9:53 PM 75.0 °F - 50.0 °F 41% 30.04 in 10.0 mi NNE 8.1 mph - N/A   Partly Cloudy
10:53 PM 69.1 °F - 48.9 °F 49% 30.06 in 10.0 mi NNW 6.9 mph - N/A   Clear
11:53 PM 68.0 °F - 50.0 °F 52% 30.06 in 10.0 mi NNW 3.5 mph - N/A   Clear