Weather History for Seattle, WA

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Sunday, September 22, 2013

  Actual Average Record
Temperature  
Mean Temperature 60 °F 60 °F  
Max Temperature 63 °F 69 °F 92 °F (1990)
Min Temperature 56 °F 51 °F 37 °F (1955)
Degree Days  
Heating Degree Days 5 6  
Month to date heating degree days 20 77  
Since 1 July heating degree days 35 162  
Cooling Degree Days 0 0  
Month to date cooling degree days 55 19  
Year to date cooling degree days 385 187  
Growing Degree Days 9 (Base 50)    
Moisture  
Dew Point 52 °F    
Average Humidity 75    
Maximum Humidity 86    
Minimum Humidity 64    
Precipitation  
Precipitation 0.53 in 0.06 in 1.65 in (1978)
Month to date precipitation 2.84 1.00  
Year to date precipitation 22.24 21.59  
Sea Level Pressure  
Sea Level Pressure 29.69 in    
Wind  
Wind Speed 12 mph (South)    
Max Wind Speed 22 mph    
Max Gust Speed 28 mph    
Visibility 8 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Date:

Astronomy

Sep. 22, 2013 Rise Set
Actual Time 6:56 AM PDT 7:06 PM PDT
Civil Twilight 6:25 AM PDT 7:36 PM PDT
Nautical Twilight 5:49 AM PDT 8:12 PM PDT
Astronomical Twilight 5:12 AM PDT 8:49 PM PDT
Moon 8:42 PM PDT (9/22) 10:38 AM PDT (9/22)
Length of Visible Light 13h 11m
Length of Day
12h 09m
Waning Gibbous, 88% of the Moon is Illuminated
Sep 22
Waning Gibbous
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter
Oct 18
Full

Hourly Weather History & Observations

Time (PDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:14 AM 60.8 °F 53.6 °F 77% 29.72 in 10.0 mi SSW 8.1 mph - N/A   Overcast
12:53 AM 59.0 °F 54.0 °F 83% 29.74 in 7.0 mi SSW 9.2 mph - 0.00 in Rain Light Rain
1:28 AM 57.2 °F 53.6 °F 88% 29.72 in 10.0 mi SSW 6.9 mph - 0.00 in   Mostly Cloudy
1:53 AM 59.0 °F 54.0 °F 83% 29.74 in 10.0 mi South 8.1 mph - 0.00 in   Mostly Cloudy
2:53 AM 59.0 °F 53.1 °F 81% 29.73 in 10.0 mi South 10.4 mph - 0.00 in   Overcast
3:53 AM 57.9 °F 52.0 °F 81% 29.73 in 10.0 mi South 11.5 mph - N/A   Mostly Cloudy
4:53 AM 55.9 °F 52.0 °F 87% 29.73 in 6.0 mi South 11.5 mph - 0.03 in Rain Light Rain
5:04 AM 57.2 °F 53.6 °F 88% 29.70 in 10.0 mi South 17.3 mph 21.9 mph 0.01 in Rain Light Rain
5:53 AM 55.9 °F 51.1 °F 84% 29.72 in 10.0 mi South 9.2 mph - 0.02 in   Overcast
6:53 AM 57.0 °F 51.1 °F 81% 29.72 in 10.0 mi SSE 9.2 mph - N/A   Overcast
7:53 AM 57.0 °F 50.0 °F 77% 29.73 in 10.0 mi South 10.4 mph - 0.00 in   Overcast
8:53 AM 57.0 °F 51.1 °F 81% 29.70 in 10.0 mi South 11.5 mph - 0.01 in Rain Light Rain
9:53 AM 57.9 °F 52.0 °F 81% 29.68 in 10.0 mi SSE 13.8 mph - 0.01 in Rain Light Rain
10:53 AM 60.1 °F 48.9 °F 67% 29.64 in 10.0 mi South 15.0 mph - 0.00 in Rain Light Rain
11:53 AM 59.0 °F 48.9 °F 69% 29.62 in 10.0 mi South 13.8 mph - 0.01 in Rain Light Rain
12:13 PM 57.2 °F 50.0 °F 77% 29.61 in 2.5 mi South 11.5 mph - 0.06 in Rain Rain
12:20 PM 57.2 °F 50.0 °F 77% 29.61 in 4.0 mi South 10.4 mph - 0.07 in Rain Rain
12:53 PM 55.9 °F 51.1 °F 84% 29.62 in 2.5 mi SSE 12.7 mph - 0.16 in Rain Heavy Rain
12:58 PM 57.2 °F 51.8 °F 82% 29.60 in 3.0 mi SSE 12.7 mph - 0.01 in Rain Rain
1:01 PM 55.4 °F 51.8 °F 88% 29.60 in 2.5 mi SSE 12.7 mph - 0.02 in Rain Rain
1:53 PM 57.0 °F 52.0 °F 83% 29.62 in 2.5 mi SSE 16.1 mph - 0.23 in Rain Light Rain
1:58 PM 57.2 °F 51.8 °F 82% 29.61 in 10.0 mi South 16.1 mph - 0.00 in Rain Light Rain
2:53 PM 60.1 °F 54.0 °F 80% 29.63 in 10.0 mi South 16.1 mph - 0.00 in   Mostly Cloudy
3:53 PM 62.1 °F 54.0 °F 75% 29.65 in 10.0 mi SSW 16.1 mph 23.0 mph N/A   Scattered Clouds
4:53 PM 61.0 °F 52.0 °F 72% 29.66 in 10.0 mi SSW 11.5 mph - N/A   Mostly Cloudy
5:53 PM 59.0 °F 54.0 °F 83% 29.67 in 10.0 mi South 12.7 mph - 0.04 in Rain Light Rain
6:53 PM 57.0 °F 52.0 °F 83% 29.69 in 10.0 mi South 10.4 mph - 0.01 in   Scattered Clouds
7:53 PM 57.9 °F 51.1 °F 78% 29.71 in 10.0 mi South 15.0 mph 21.9 mph N/A   Scattered Clouds
8:53 PM 57.0 °F 51.1 °F 81% 29.74 in 10.0 mi South 13.8 mph - N/A   Scattered Clouds
9:53 PM 57.9 °F 51.1 °F 78% 29.75 in 10.0 mi South 13.8 mph - N/A   Mostly Cloudy
10:53 PM 57.9 °F 52.0 °F 81% 29.77 in 10.0 mi SSW 12.7 mph 21.9 mph 0.00 in   Overcast
11:53 PM 57.0 °F 52.0 °F 83% 29.78 in 7.0 mi South 10.4 mph - 0.00 in   Mostly Cloudy