Weather History for Seattle, WA

Change the Weather History Date:

Thursday, February 21, 2013

  Actual Average Record
Temperature  
Mean Temperature 42 °F 44 °F  
Max Temperature 44 °F 51 °F 67 °F (1973)
Min Temperature 39 °F 37 °F 25 °F (1957)
Degree Days  
Heating Degree Days 23 21  
Month to date heating degree days 428 459  
Since 1 July heating degree days 3002 3108  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 37 °F    
Average Humidity 81    
Maximum Humidity 86    
Minimum Humidity 76    
Precipitation  
Precipitation 0.02 in 0.12 in 0.97 in (1949)
Month to date precipitation 0.59 2.65  
Year to date precipitation 4.75 8.22  
Snow  
Snow 0.00 in - T in (1993)
Month to date snowfall 0.0  
Since 1 July snowfall 0.6  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.06 in    
Wind  
Wind Speed 14 mph (SSW)    
Max Wind Speed 24 mph    
Max Gust Speed 31 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

Search for Another Location

Airport:

Trip Planner

Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!

Date:

Astronomy

Feb. 21, 2013 Rise Set
Actual Time 7:03 AM PST 5:42 PM PST
Civil Twilight 6:32 AM PST 6:13 PM PST
Nautical Twilight 5:56 AM PST 6:49 PM PST
Astronomical Twilight 5:21 AM PST 7:25 PM PST
Moon 1:52 PM PST (2/21) 4:23 AM PST (2/21)
Length of Visible Light 11h 41m
Length of Day
10h 39m
Waxing Gibbous, 84% of the Moon is Illuminated
Feb 21
Waxing Gibbous
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
12:41 AM 39.2 °F 37.0 °F 35.6 °F 87% 30.01 in 10.0 mi SE 3.5 mph - N/A   Overcast
12:53 AM 39.9 °F 37.8 °F 36.0 °F 86% 30.04 in 10.0 mi SE 3.5 mph - N/A   Overcast
1:53 AM 39.9 °F - 37.0 °F 89% 30.06 in 10.0 mi Calm Calm - 0.01 in Rain Light Rain
2:53 AM 39.9 °F 34.5 °F 37.0 °F 89% 30.05 in 5.0 mi South 8.1 mph 17.3 mph 0.00 in   Overcast
3:53 AM 41.0 °F 34.7 °F 37.9 °F 89% 30.05 in 9.0 mi South 10.4 mph - 0.01 in   Overcast
4:53 AM 41.0 °F 33.5 °F 37.9 °F 89% 30.05 in 10.0 mi SSW 13.8 mph - N/A   Overcast
5:53 AM 41.0 °F 33.1 °F 37.0 °F 86% 30.05 in 10.0 mi South 15.0 mph 24.2 mph N/A   Overcast
6:53 AM 42.1 °F 33.6 °F 37.0 °F 82% 30.06 in 10.0 mi SSW 18.4 mph 27.6 mph N/A   Overcast
7:34 AM 42.8 °F 34.5 °F 37.4 °F 81% 30.03 in 10.0 mi SSW 18.4 mph 26.5 mph N/A   Overcast
7:53 AM 42.1 °F 33.9 °F 37.0 °F 82% 30.07 in 10.0 mi SSW 17.3 mph 25.3 mph N/A   Overcast
8:53 AM 42.1 °F 33.1 °F 36.0 °F 79% 30.08 in 10.0 mi SSW 20.7 mph 28.8 mph N/A   Overcast
9:12 AM 42.8 °F 33.5 °F 35.6 °F 76% 30.06 in 10.0 mi SW 23.0 mph 28.8 mph 0.00 in Rain Light Rain
9:53 AM 42.1 °F 32.3 °F 36.0 °F 79% 30.07 in 10.0 mi SW 24.2 mph 31.1 mph 0.00 in   Mostly Cloudy
10:53 AM 42.1 °F 32.8 °F 36.0 °F 79% 30.09 in 10.0 mi South 21.9 mph 25.3 mph N/A   Overcast
11:53 AM 42.1 °F 34.5 °F 36.0 °F 79% 30.09 in 10.0 mi SSW 15.0 mph - 0.00 in   Overcast
12:53 PM 42.1 °F 35.2 °F 36.0 °F 79% 30.08 in 10.0 mi South 12.7 mph - 0.00 in Rain Light Rain
1:41 PM 42.8 °F 37.5 °F 35.6 °F 76% 30.03 in 10.0 mi South 9.2 mph - 0.00 in   Overcast
1:53 PM 43.0 °F 36.4 °F 36.0 °F 76% 30.06 in 8.0 mi South 12.7 mph - 0.00 in Rain Light Rain
2:20 PM 42.8 °F 35.8 °F 37.4 °F 81% 30.02 in 5.0 mi SSW 13.8 mph 21.9 mph 0.00 in Rain Light Rain
2:53 PM 43.0 °F 35.7 °F 37.9 °F 82% 30.06 in 10.0 mi SSW 15.0 mph - 0.00 in   Light Drizzle
3:53 PM 44.1 °F 37.7 °F 37.0 °F 76% 30.05 in 10.0 mi SSW 12.7 mph - 0.00 in   Overcast
4:00 PM 44.6 °F 37.2 °F 37.4 °F 76% 30.02 in 10.0 mi SSW 17.3 mph 24.2 mph N/A   Overcast
4:53 PM 44.1 °F 36.5 °F 37.0 °F 76% 30.04 in 10.0 mi South 17.3 mph 24.2 mph N/A   Overcast
5:53 PM 44.1 °F 35.9 °F 37.9 °F 79% 30.06 in 10.0 mi SSW 19.6 mph 24.2 mph N/A   Overcast
6:53 PM 44.1 °F 36.8 °F 37.9 °F 79% 30.06 in 10.0 mi SSW 16.1 mph - N/A   Mostly Cloudy
7:53 PM 44.1 °F 38.6 °F 39.0 °F 82% 30.07 in 10.0 mi SSW 10.4 mph - N/A   Overcast
8:53 PM 44.1 °F 37.7 °F 37.9 °F 79% 30.09 in 10.0 mi SSW 12.7 mph - N/A   Overcast
9:53 PM 44.1 °F 39.0 °F 39.0 °F 82% 30.10 in 10.0 mi SSW 9.2 mph - N/A   Overcast
11:53 PM 43.0 °F 35.4 °F 37.9 °F 82% 30.08 in 10.0 mi SSW 16.1 mph 24.2 mph N/A   Overcast