Seatac, WA

12:06 AM PST on February 10, 2016 (GMT -0800)
Seattle-Tacoma International

Weather History for KSEA - January, 2013

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Week of January 13, 2013 through January 19, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 44 °F 39 °F 34 °F
Mean Temperature 38 °F 34 °F 30 °F
Min Temperature 31 °F 28 °F 24 °F
Degree Days  
Heating Degree Days (base 65) 35 31 27 220
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 34 °F 28 °F 18 °F
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in 0.00 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 12 mph 3 mph 0 mph
Gust Wind 14 mph - -
Sea Level Pressure  
Sea Level Pressure 30.72 in 30.49 in 30.26 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Jan. 19, 2013 Rise Set
Actual Time 7:48 AM PST 4:51 PM PST
Civil Twilight 7:14 AM PST 5:25 PM PST
Nautical Twilight 6:36 AM PST 6:03 PM PST
Astronomical Twilight 6:00 AM PST 6:40 PM PST
Moon 11:25 AM PST (1/19) 1:22 AM PST (1/19)
Length of Visible Light 10h 11m
Length of Day
9h 02m
First Quarter, 58% of the Moon is Illuminated
Jan 19
First Quarter
Jan 26
Full
Feb 3
Last Quarter
Feb 9
New
Feb 17
First Quarter

Daily Weather History & Observations

2013 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Jan high avg low high avg low high avg low high avg low high avg low high avg high sum  
13 36 30 24 25 21 18 81 69 56 30.52 30.48 30.42 10 10 10 8 3 9 0.00  
14 38 33 28 29 26 23 82 71 59 30.59 30.54 30.49 10 10 10 7 3 9 0.00  
15 44 38 31 31 29 27 82 70 57 30.72 30.68 30.60 10 10 10 12 5 14 0.00  
16 43 34 25 32 28 23 92 77 62 30.69 30.63 30.54 10 5 0 10 4 12 0.00 Fog
17 39 33 27 34 29 25 96 91 85 30.54 30.43 30.32 7 1 0 7 2 8 0.00 Fog
18 38 34 30 34 32 29 100 93 85 30.37 30.31 30.26 0 0 0 9 3 12 0.00 Fog
19 34 33 31 33 31 29 100 93 85 30.41 30.38 30.33 0 0 0 10 4 13 0.00 Fog