Seattle, WA

10:10 AM PDT on July 28, 2017 (GMT -0700)
Seattle-Tacoma International

Weather History for KSEA - December, 2013

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Sunday, December 22, 2013

  Actual Average Record
Temperature  
Mean Temperature 49 °F 40 °F  
Max Temperature 51 °F 45 °F 57 °F (2005)
Min Temperature 47 °F 35 °F 14 °F (1983)
Degree Days  
Heating Degree Days 16 25  
Month to date heating degree days 574 535  
Since 1 July heating degree days 1596 1718  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 385 189  
Moisture  
Dew Point 46 °F    
Average Humidity 88    
Maximum Humidity 93    
Minimum Humidity 83    
Precipitation  
Precipitation 0.42 in 0.17 in 1.28 in (1964)
Month to date precipitation 1.56 3.86  
Year to date precipitation 32.46 36.00  
Snow  
Snow 0.00 in - 2.20 in (1968)
Month to date snowfall 1.1  
Since 1 July snowfall 1.1  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.27 in    
Wind  
Wind Speed 9 mph (South)    
Max Wind Speed 16 mph    
Max Gust Speed 20 mph    
Visibility 4 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

Dec. 22, 2013 Rise Set
Actual Time 7:54 AM PST 4:21 PM PST
Civil Twilight 7:18 AM PST 4:57 PM PST
Nautical Twilight 6:39 AM PST 5:36 PM PST
Astronomical Twilight 6:02 AM PST 6:14 PM PST
Moon 10:00 PM PST (12/22) 10:34 AM PST (12/22)
Length of Visible Light 9h 38m
Length of Day
8h 26m
Waning Gibbous, 76% of the Moon is Illuminated
Dec 22
Waning Gibbous
Dec 25
Last Quarter
Jan 1
New
Jan 7
First Quarter
Jan 15
Full

Hourly Weather History & Observations

Time (PST) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 46.9 °F 43.0 °F 86% 30.19 in 1.0 mi South 12.7 mph - 0.04 in   Light Drizzle
1:53 AM 46.9 °F 43.0 °F 86% 30.19 in 0.8 mi South 10.4 mph - 0.03 in   Light Drizzle
2:53 AM 46.9 °F 44.1 °F 90% 30.22 in 0.8 mi South 9.2 mph - 0.02 in   Light Drizzle
3:53 AM 46.9 °F 44.1 °F 90% 30.21 in 0.8 mi South 8.1 mph - 0.02 in   Light Drizzle
4:53 AM 46.9 °F 44.1 °F 90% 30.21 in 1.0 mi SSE 5.8 mph - 0.02 in   Light Drizzle
5:53 AM 46.9 °F 45.0 °F 93% 30.21 in 1.2 mi South 4.6 mph - 0.01 in Rain Light Rain
6:50 AM 48.2 °F 44.6 °F 87% 30.20 in 1.2 mi South 5.8 mph - 0.02 in Rain Light Rain
6:53 AM 48.0 °F 45.0 °F 89% 30.23 in 1.2 mi South 4.6 mph - 0.02 in Rain Light Rain
7:53 AM 48.0 °F 45.0 °F 89% 30.24 in 1.2 mi South 5.8 mph - 0.01 in Rain Light Rain
8:53 AM 48.9 °F 45.0 °F 86% 30.25 in 1.2 mi South 10.4 mph - 0.01 in   Light Drizzle
9:53 AM 48.9 °F 46.0 °F 90% 30.27 in 1.2 mi SSW 10.4 mph - 0.02 in   Light Drizzle
10:53 AM 50.0 °F 46.0 °F 86% 30.29 in 1.2 mi South 9.2 mph - 0.02 in   Light Drizzle
11:18 AM 50.0 °F 46.4 °F 87% 30.27 in 0.5 mi South 8.1 mph - 0.01 in Rain Light Rain
11:19 AM 50.0 °F 46.4 °F 87% 30.27 in 0.5 mi South 8.1 mph - 0.01 in Rain Light Rain
11:53 AM 50.0 °F 46.9 °F 89% 30.30 in 0.5 mi South 9.2 mph - 0.02 in Rain Light Rain
12:53 PM 50.0 °F 46.9 °F 89% 30.30 in 0.5 mi South 9.2 mph - 0.03 in Rain Light Rain
1:53 PM 50.0 °F 46.9 °F 89% 30.30 in 0.5 mi South 10.4 mph - 0.02 in Rain Light Rain
2:53 PM 50.0 °F 46.9 °F 89% 30.31 in 0.5 mi South 8.1 mph - 0.02 in Rain Light Rain
3:53 PM 50.0 °F 46.9 °F 89% 30.32 in 0.5 mi South 6.9 mph - 0.01 in Rain Light Rain
4:53 PM 50.0 °F 46.9 °F 89% 30.32 in 0.5 mi South 9.2 mph - 0.04 in Rain Light Rain
5:40 PM 50.0 °F 46.4 °F 87% 30.30 in 2.0 mi South 11.5 mph - 0.03 in Rain Light Rain
5:53 PM 51.1 °F 46.9 °F 86% 30.33 in 2.0 mi SSW 9.2 mph - 0.03 in Rain Light Rain
6:14 PM 51.8 °F 46.4 °F 82% 30.30 in 2.0 mi SSW 9.2 mph - 0.01 in Rain Light Rain
6:39 PM 51.8 °F 46.4 °F 82% 30.30 in 7.0 mi SSW 9.2 mph - 0.01 in Rain Light Rain
6:53 PM 51.1 °F 46.9 °F 86% 30.32 in 5.0 mi SSW 6.9 mph - 0.01 in Rain Light Rain
7:34 PM 50.0 °F 46.4 °F 87% 30.30 in 3.0 mi SSW 10.4 mph - 0.02 in Rain Light Rain
7:53 PM 50.0 °F 46.9 °F 89% 30.33 in 4.0 mi SW 8.1 mph - 0.02 in Rain Light Rain
8:53 PM 50.0 °F 46.9 °F 89% 30.32 in 8.0 mi SSW 10.4 mph - 0.01 in   Overcast
9:00 PM 50.0 °F 46.4 °F 87% 30.29 in 10.0 mi SSW 10.4 mph - N/A   Overcast
9:07 PM 51.8 °F 46.4 °F 82% 30.28 in 10.0 mi SSW 11.5 mph - N/A   Overcast
9:20 PM 51.8 °F 46.4 °F 82% 30.28 in 10.0 mi SSW 13.8 mph - N/A   Overcast
9:51 PM 51.8 °F 46.4 °F 82% 30.28 in 10.0 mi South 12.7 mph - 0.00 in Rain Light Rain
9:53 PM 51.1 °F 46.0 °F 83% 30.30 in 10.0 mi South 13.8 mph - 0.00 in Rain Light Rain
10:53 PM 51.1 °F 46.0 °F 83% 30.30 in 7.0 mi SSW 12.7 mph - 0.00 in   Overcast
11:04 PM 50.0 °F 46.4 °F 87% 30.27 in 2.0 mi SSW 13.8 mph - N/A   Overcast
11:32 PM 50.0 °F 46.4 °F 87% 30.27 in 10.0 mi SSW 12.7 mph - N/A   Overcast
11:39 PM 50.0 °F 46.4 °F 87% 30.27 in 10.0 mi SSW 12.7 mph - N/A   Overcast
11:53 PM 50.0 °F 46.0 °F 86% 30.30 in 10.0 mi SSW 11.5 mph - N/A   Overcast