Weather History for Seattle, WA

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Tuesday, September 10, 2013

  Actual Average Record
Temperature  
Mean Temperature 70 °F 63 °F  
Max Temperature 80 °F 72 °F 85 °F (2007)
Min Temperature 59 °F 53 °F 39 °F (1952)
Degree Days  
Heating Degree Days 0 3  
Month to date heating degree days 1 25  
Since 1 July heating degree days 16 110  
Cooling Degree Days 5 1  
Month to date cooling degree days 38 10  
Year to date cooling degree days 368 178  
Growing Degree Days 20 (Base 50)    
Moisture  
Dew Point 58 °F    
Average Humidity 71    
Maximum Humidity 90    
Minimum Humidity 52    
Precipitation  
Precipitation 0.00 in 0.04 in 0.64 in (2004)
Month to date precipitation 2.03 0.41  
Year to date precipitation 21.43 21.00  
Sea Level Pressure  
Sea Level Pressure 29.98 in    
Wind  
Wind Speed 8 mph (North)    
Max Wind Speed 14 mph    
Max Gust Speed 36 mph    
Visibility 8 miles    
Events Fog    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Sep. 10, 2013 Rise Set
Actual Time 6:40 AM PDT 7:30 PM PDT
Civil Twilight 6:09 AM PDT 8:01 PM PDT
Nautical Twilight 5:32 AM PDT 8:38 PM PDT
Astronomical Twilight 4:52 AM PDT 9:17 PM PDT
Moon 12:36 PM PDT (9/10) 10:12 PM PDT (9/10)
Length of Visible Light 13h 52m
Length of Day
12h 50m
Waxing Crescent, 29% of the Moon is Illuminated
Sep 10
Waxing Crescent
Sep 12
First Quarter
Sep 19
Full
Sep 26
Last Quarter
Oct 4
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 63.0 °F 57.0 °F 81% 30.01 in 10.0 mi NNE 9.2 mph - N/A   Clear
1:53 AM 62.1 °F 57.0 °F 84% 30.01 in 10.0 mi NNE 6.9 mph - N/A   Clear
2:53 AM 61.0 °F 57.0 °F 87% 30.01 in 10.0 mi North 5.8 mph - N/A   Clear
3:45 AM 60.8 °F 55.4 °F 82% 30.00 in 10.0 mi North 5.8 mph - N/A   Partly Cloudy
3:53 AM 60.1 °F 55.9 °F 86% 30.02 in 10.0 mi North 5.8 mph - N/A   Partly Cloudy
4:53 AM 59.0 °F 55.0 °F 87% 30.01 in 10.0 mi North 5.8 mph - N/A   Scattered Clouds
5:31 AM 60.8 °F 55.4 °F 82% 29.99 in 7.0 mi North 5.8 mph - N/A   Mostly Cloudy
5:53 AM 60.1 °F 55.9 °F 86% 30.01 in 3.0 mi NNE 9.2 mph - N/A   Overcast
6:31 AM 60.8 °F 57.2 °F 88% 29.99 in 0.1 mi North 5.8 mph - N/A   Overcast
6:53 AM 60.1 °F 57.0 °F 90% 30.01 in 0.1 mi North 5.8 mph - N/A Fog Fog
7:53 AM 60.1 °F 57.0 °F 90% 30.02 in 0.1 mi NNE 6.9 mph - N/A Fog Fog
8:39 AM 60.8 °F 57.2 °F 88% 30.01 in 1.5 mi NNE 12.7 mph - N/A   Overcast
8:53 AM 61.0 °F 57.0 °F 87% 30.02 in 1.5 mi NNE 10.4 mph - N/A   Overcast
9:43 AM 62.6 °F 57.2 °F 82% 30.02 in 2.0 mi North 10.4 mph - N/A   Haze
9:53 AM 64.0 °F 57.9 °F 80% 30.03 in 2.0 mi NNE 9.2 mph - N/A   Haze
10:18 AM 64.4 °F 57.2 °F 77% 30.01 in 10.0 mi NNE 10.4 mph - N/A   Mostly Cloudy
10:53 AM 66.9 °F 57.9 °F 73% 30.03 in 10.0 mi North 8.1 mph - N/A   Mostly Cloudy
10:58 AM 66.2 °F 57.2 °F 73% 30.01 in 10.0 mi North 8.1 mph - N/A   Scattered Clouds
11:53 AM 72.0 °F 59.0 °F 64% 30.01 in 10.0 mi North 8.1 mph - N/A   Partly Cloudy
12:53 PM 73.9 °F 59.0 °F 59% 29.99 in 10.0 mi NNW 8.1 mph - N/A   Clear
1:53 PM 75.9 °F 60.1 °F 58% 29.98 in 10.0 mi NNE 6.9 mph - N/A   Clear
2:53 PM 78.1 °F 59.0 °F 52% 29.96 in 10.0 mi North 12.7 mph - N/A   Clear
3:53 PM 79.0 °F 60.1 °F 52% 29.94 in 10.0 mi NNW 9.2 mph - N/A   Clear
4:53 PM 79.0 °F 60.1 °F 52% 29.93 in 10.0 mi NNW 10.4 mph - N/A   Clear
5:53 PM 78.1 °F 60.1 °F 54% 29.93 in 10.0 mi North 6.9 mph - N/A   Clear
6:53 PM 75.9 °F 60.1 °F 58% 29.92 in 10.0 mi North 6.9 mph - N/A   Clear
7:53 PM 71.1 °F 59.0 °F 66% 29.93 in 10.0 mi North 9.2 mph - N/A   Clear
8:53 PM 70.0 °F 59.0 °F 68% 29.94 in 10.0 mi North 9.2 mph - N/A   Clear
9:53 PM 69.1 °F 59.0 °F 70% 29.94 in 10.0 mi NNW 8.1 mph - N/A   Clear
10:53 PM 69.1 °F 59.0 °F 70% 29.94 in 10.0 mi North 9.2 mph - N/A   Clear
11:53 PM 69.1 °F 57.0 °F 65% 29.92 in 10.0 mi North 10.4 mph - N/A   Clear