Weather History for KSEA - May, 2013

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Thursday, May 2, 2013

  Actual Average Record
Temperature  
Mean Temperature 57 °F 53 °F  
Max Temperature 69 °F 62 °F 74 °F (1966)
Min Temperature 44 °F 45 °F 33 °F (1952)
Degree Days  
Heating Degree Days 8 12  
Month to date heating degree days 21 24  
Since 1 July heating degree days 4101 4292  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Growing Degree Days 6 (Base 50)    
Moisture  
Dew Point 38 °F    
Average Humidity 53    
Maximum Humidity 71    
Minimum Humidity 34    
Precipitation  
Precipitation 0.00 in 0.06 in 0.47 in (1975)
Month to date precipitation 0.00 0.13  
Year to date precipitation 14.37 15.63  
Sea Level Pressure  
Sea Level Pressure 30.47 in    
Wind  
Wind Speed 9 mph (North)    
Max Wind Speed 21 mph    
Max Gust Speed 24 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

May. 02, 2013 Rise Set
Actual Time 5:50 AM PDT 8:22 PM PDT
Civil Twilight 5:15 AM PDT 8:57 PM PDT
Nautical Twilight 4:32 AM PDT 9:41 PM PDT
Astronomical Twilight 3:42 AM PDT 10:31 PM PDT
Moon 2:11 AM PDT 12:49 PM PDT
Length of Visible Light 15h 41m
Length of Day
14h 32m
Waning Gibbous, 46% of the Moon is Illuminated
May 2
Waning Gibbous
May 9
New
May 17
First Quarter
May 24
Full
May 31
Last 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 52.0 °F - 36.0 °F 54% 30.57 in 10.0 mi North 9.2 mph - N/A   Mostly Cloudy
1:53 AM 52.0 °F - 34.0 °F 50% 30.56 in 10.0 mi North 6.9 mph - N/A   Scattered Clouds
2:53 AM 48.9 °F - 35.1 °F 59% 30.56 in 10.0 mi North 6.9 mph - N/A   Scattered Clouds
3:53 AM 48.0 °F - 35.1 °F 61% 30.54 in 10.0 mi NNE 6.9 mph - N/A   Clear
4:53 AM 45.0 °F 41.2 °F 36.0 °F 71% 30.53 in 10.0 mi North 6.9 mph - N/A   Clear
5:53 AM 46.0 °F 43.1 °F 36.0 °F 68% 30.53 in 10.0 mi NNE 5.8 mph - N/A   Partly Cloudy
6:53 AM 46.9 °F - 37.9 °F 71% 30.52 in 10.0 mi North 3.5 mph - N/A   Partly Cloudy
7:53 AM 51.1 °F - 39.0 °F 63% 30.52 in 10.0 mi NNW 5.8 mph - N/A   Partly Cloudy
8:53 AM 54.0 °F - 39.0 °F 57% 30.51 in 10.0 mi North 6.9 mph - N/A   Scattered Clouds
9:53 AM 57.9 °F - 39.0 °F 49% 30.49 in 10.0 mi North 4.6 mph - N/A   Scattered Clouds
10:53 AM 60.1 °F - 42.1 °F 51% 30.48 in 10.0 mi WNW 4.6 mph - N/A   Scattered Clouds
11:53 AM 64.0 °F - 41.0 °F 43% 30.47 in 10.0 mi Variable 4.6 mph - N/A   Scattered Clouds
12:53 PM 64.9 °F - 39.9 °F 40% 30.45 in 10.0 mi West 9.2 mph - N/A   Mostly Cloudy
1:53 PM 69.1 °F - 41.0 °F 36% 30.43 in 10.0 mi North 8.1 mph - N/A   Mostly Cloudy
2:53 PM 68.0 °F - 39.9 °F 36% 30.42 in 10.0 mi NNW 10.4 mph - N/A   Overcast
3:53 PM 66.0 °F - 37.0 °F 34% 30.42 in 10.0 mi NNW 16.1 mph - N/A   Overcast
4:53 PM 63.0 °F - 36.0 °F 37% 30.41 in 10.0 mi NNW 16.1 mph - N/A   Overcast
5:53 PM 62.1 °F - 36.0 °F 38% 30.41 in 10.0 mi North 12.7 mph - N/A   Overcast
6:53 PM 61.0 °F - 36.0 °F 39% 30.41 in 10.0 mi North 11.5 mph - N/A   Overcast
7:53 PM 59.0 °F - 37.0 °F 44% 30.40 in 10.0 mi North 15.0 mph - N/A   Mostly Cloudy
8:53 PM 57.9 °F - 37.0 °F 46% 30.41 in 10.0 mi NNE 13.8 mph - N/A   Mostly Cloudy
9:53 PM 55.9 °F - 37.0 °F 49% 30.41 in 10.0 mi NNE 11.5 mph - N/A   Scattered Clouds
10:53 PM 55.0 °F - 37.9 °F 53% 30.40 in 10.0 mi NNE 10.4 mph - N/A   Partly Cloudy
11:53 PM 54.0 °F - 37.9 °F 55% 30.40 in 10.0 mi NNE 9.2 mph - N/A   Clear