Weather History for Seattle, WA

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Friday, October 21, 2005

  Actual Average Record
Temperature  
Mean Temperature 59 °F 51 °F  
Max Temperature 68 °F 58 °F 72 °F (1965)
Min Temperature 50 °F 45 °F 32 °F (1949)
Degree Days  
Heating Degree Days 6 14  
Month to date heating degree days 206 229  
Since 1 July heating degree days 418 446  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 162 189  
Growing Degree Days 8 (Base 50)    
Moisture  
Dew Point 49 °F    
Average Humidity 74    
Maximum Humidity 96    
Minimum Humidity 52    
Precipitation  
Precipitation 0.00 in 0.13 in 1.29 in (1963)
Month to date precipitation 1.50 1.98  
Year to date precipitation 21.75 24.07  
Snow  
Snow 0.00 in - - ()
Month to date snowfall 0.0  
Since 1 July snowfall 0.0  
Snow Depth -    
Sea Level Pressure  
Sea Level Pressure 30.13 in    
Wind  
Wind Speed 4 mph (North)    
Max Wind Speed 10 mph    
Max Gust Speed 13 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Oct. 21, 2005 Rise Set
Actual Time 7:36 AM PDT 6:09 PM PDT
Civil Twilight 7:05 AM PDT 6:41 PM PDT
Nautical Twilight 6:29 AM PDT 7:16 PM PDT
Astronomical Twilight 5:54 AM PDT 7:52 PM PDT
Moon 8:26 PM PDT (10/21) 12:54 PM PDT (10/21)
Length of Visible Light 11h 35m
Length of Day
10h 32m
Waning Gibbous, 80% of the Moon is Illuminated
Oct 21
Waning Gibbous
Oct 24
Last Quarter
Nov 1
New
Nov 8
First Quarter
Nov 15
Full

Hourly Weather History & Observations

Time (PDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 53.1 °F 46.9 °F 80% 30.23 in 10.0 mi Calm Calm - N/A   Overcast
1:56 AM 54.0 °F 46.9 °F 77% 30.23 in 10.0 mi Calm Calm - N/A   Overcast
2:56 AM 52.0 °F 46.9 °F 83% 30.22 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
3:56 AM 52.0 °F 48.0 °F 86% 30.22 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
4:56 AM 52.0 °F 48.9 °F 89% 30.21 in 10.0 mi NE 6.9 mph - N/A   Mostly Cloudy
5:56 AM 51.1 °F 48.0 °F 89% 30.21 in 10.0 mi Calm Calm - N/A   Scattered Clouds
6:56 AM 50.0 °F 48.0 °F 93% 30.20 in 10.0 mi NNE 3.5 mph - N/A   Mostly Cloudy
7:56 AM 50.0 °F 48.9 °F 96% 30.20 in 10.0 mi NW 3.5 mph - N/A   Mostly Cloudy
8:56 AM 52.0 °F 50.0 °F 93% 30.20 in 10.0 mi NNE 3.5 mph - N/A   Mostly Cloudy
9:56 AM 55.9 °F 50.0 °F 80% 30.19 in 10.0 mi Calm Calm - N/A   Scattered Clouds
10:56 AM 57.9 °F 52.0 °F 81% 30.18 in 10.0 mi WNW 5.8 mph - N/A   Scattered Clouds
11:56 AM 59.0 °F 50.0 °F 72% 30.17 in 10.0 mi Variable 4.6 mph - N/A   Scattered Clouds
12:56 PM 60.1 °F 50.0 °F 69% 30.14 in 10.0 mi NW 5.8 mph - N/A   Scattered Clouds
1:56 PM 63.0 °F 50.0 °F 63% 30.12 in 10.0 mi Variable 4.6 mph - N/A   Scattered Clouds
2:56 PM 64.9 °F 50.0 °F 58% 30.09 in 10.0 mi WNW 5.8 mph - N/A   Scattered Clouds
3:56 PM 66.9 °F 50.0 °F 54% 30.07 in 10.0 mi North 4.6 mph - N/A   Scattered Clouds
4:56 PM 66.9 °F 48.9 °F 52% 30.05 in 10.0 mi NW 3.5 mph - N/A   Scattered Clouds
5:56 PM 64.0 °F 50.0 °F 60% 30.04 in 10.0 mi NW 4.6 mph - N/A   Partly Cloudy
6:56 PM 63.0 °F 48.9 °F 60% 30.04 in 10.0 mi NNE 5.8 mph - N/A   Partly Cloudy
7:56 PM 64.0 °F 48.0 °F 56% 30.03 in 10.0 mi East 6.9 mph - N/A   Clear
8:56 PM 63.0 °F 48.0 °F 58% 30.02 in 10.0 mi NE 8.1 mph - N/A   Clear
9:56 PM 63.0 °F 46.9 °F 56% 30.01 in 10.0 mi Variable 3.5 mph - N/A   Partly Cloudy
10:56 PM 54.0 °F 50.0 °F 86% 30.02 in 10.0 mi Calm Calm - N/A   Clear
11:56 PM 52.0 °F 50.0 °F 93% 30.02 in 10.0 mi SSW 5.8 mph - N/A   Clear