Weather History for Seattle, WA

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Monday, February 18, 2013

  Actual Average Record
Temperature  
Mean Temperature 43 °F 44 °F  
Max Temperature 46 °F 50 °F 62 °F (1977)
Min Temperature 39 °F 37 °F 20 °F (1990)
Degree Days  
Heating Degree Days 22 22  
Month to date heating degree days 358 396  
Since 1 July heating degree days 2932 3045  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 35 °F    
Average Humidity 72    
Maximum Humidity 86    
Minimum Humidity 58    
Precipitation  
Precipitation T in 0.11 in 1.63 in (1968)
Month to date precipitation 0.51 2.29  
Year to date precipitation 4.67 7.86  
Snow  
Snow 0.00 in - T in (1986)
Month to date snowfall 0.0  
Since 1 July snowfall 0.6  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.95 in    
Wind  
Wind Speed 4 mph (South)    
Max Wind Speed 10 mph    
Max Gust Speed 15 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Feb. 18, 2013 Rise Set
Actual Time 7:08 AM PST 5:38 PM PST
Civil Twilight 6:37 AM PST 6:09 PM PST
Nautical Twilight 6:01 AM PST 6:45 PM PST
Astronomical Twilight 5:26 AM PST 7:20 PM PST
Moon 11:15 AM PST (2/18) 2:05 AM PST (2/18)
Length of Visible Light 11h 32m
Length of Day
10h 29m
First Quarter, 59% of the Moon is Illuminated
Feb 18
First Quarter
Feb 25
Full
Mar 4
Last Quarter
Mar 11
New
Mar 19
First Quarter

Hourly Weather History & Observations

Time (PST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:30 AM 41.0 °F 38.0 °F 35.6 °F 81% 30.09 in 10.0 mi SSE 4.6 mph - N/A   Overcast
12:53 AM 41.0 °F 39.0 °F 37.0 °F 86% 30.12 in 10.0 mi SSE 3.5 mph - N/A   Overcast
1:53 AM 41.0 °F - 36.0 °F 82% 30.09 in 10.0 mi Calm Calm - N/A   Overcast
2:14 AM 41.0 °F - 35.6 °F 81% 30.06 in 10.0 mi Calm Calm - N/A   Overcast
2:53 AM 41.0 °F - 35.1 °F 79% 30.08 in 10.0 mi Calm Calm - N/A   Overcast
3:53 AM 41.0 °F - 36.0 °F 82% 30.06 in 10.0 mi Calm Calm - N/A   Overcast
4:53 AM 39.9 °F 37.8 °F 35.1 °F 83% 30.04 in 10.0 mi SE 3.5 mph - N/A   Mostly Cloudy
5:53 AM 39.9 °F 36.7 °F 35.1 °F 83% 30.03 in 10.0 mi SSE 4.6 mph - N/A   Overcast
6:53 AM 39.9 °F 35.8 °F 35.1 °F 83% 30.01 in 10.0 mi SSE 5.8 mph - N/A   Overcast
7:53 AM 39.9 °F 36.7 °F 36.0 °F 86% 30.02 in 10.0 mi South 4.6 mph - N/A   Overcast
8:53 AM 39.9 °F 34.5 °F 36.0 °F 86% 30.01 in 10.0 mi SSE 8.1 mph - N/A   Overcast
9:30 AM 41.0 °F 35.2 °F 35.6 °F 81% 29.97 in 10.0 mi ESE 9.2 mph - N/A   Overcast
9:53 AM 41.0 °F 37.1 °F 36.0 °F 82% 30.00 in 10.0 mi South 5.8 mph - N/A   Overcast
10:04 AM 41.0 °F 38.0 °F 35.6 °F 81% 29.98 in 10.0 mi SSW 4.6 mph - N/A   Overcast
10:53 AM 44.1 °F 40.1 °F 36.0 °F 73% 29.99 in 10.0 mi SSW 6.9 mph - N/A   Overcast
11:31 AM 42.8 °F 38.6 °F 35.6 °F 76% 29.95 in 10.0 mi SSW 6.9 mph - N/A   Overcast
11:53 AM 44.1 °F 40.1 °F 35.1 °F 71% 29.97 in 10.0 mi South 6.9 mph - N/A   Overcast
12:53 PM 45.0 °F 41.8 °F 34.0 °F 65% 29.95 in 10.0 mi SW 5.8 mph - N/A   Overcast
1:53 PM 46.0 °F 43.1 °F 34.0 °F 63% 29.94 in 10.0 mi South 5.8 mph - N/A   Mostly Cloudy
2:38 PM 44.6 °F 40.7 °F 37.4 °F 76% 29.90 in 7.0 mi SSW 6.9 mph - 0.00 in Rain Light Rain
2:53 PM 44.6 °F 42.2 °F 37.4 °F 76% 29.89 in 10.0 mi South 4.6 mph - N/A Rain Light Rain
3:09 PM 44.6 °F 43.1 °F 37.4 °F 76% 29.89 in 10.0 mi South 3.5 mph - 0.00 in   Overcast
3:53 PM 46.0 °F 43.1 °F 36.0 °F 68% 29.90 in 10.0 mi South 5.8 mph - 0.00 in   Mostly Cloudy
4:53 PM 46.0 °F 41.9 °F 32.0 °F 58% 29.87 in 10.0 mi SSW 8.1 mph - N/A   Overcast
5:53 PM 44.1 °F 42.5 °F 33.1 °F 65% 29.86 in 10.0 mi South 3.5 mph - N/A   Mostly Cloudy
6:53 PM 45.0 °F - 34.0 °F 65% 29.84 in 10.0 mi Calm Calm - 0.00 in Rain Light Rain
7:53 PM 44.1 °F 42.5 °F 34.0 °F 68% 29.82 in 10.0 mi SSE 3.5 mph - 0.00 in Rain Light Rain
8:53 PM 43.0 °F 38.8 °F 34.0 °F 71% 29.81 in 10.0 mi SE 6.9 mph - 0.00 in   Mostly Cloudy
9:53 PM 43.0 °F 40.3 °F 33.1 °F 68% 29.80 in 10.0 mi ESE 4.6 mph - N/A   Overcast
10:53 PM 41.0 °F 39.0 °F 34.0 °F 76% 29.80 in 10.0 mi SSW 3.5 mph - N/A   Overcast
11:53 PM 42.1 °F - 35.1 °F 76% 29.78 in 10.0 mi Calm Calm - 0.00 in   Mostly Cloudy