Weather History for Seattle Boeing, WA

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Month of September, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 89 °F 71 °F 57 °F
Mean Temperature 76 °F 64 °F 54 °F
Min Temperature 64 °F 58 °F 44 °F
Degree Days  
Heating Degree Days (base 65) 12 3 0 85
Cooling Degree Days (base 65) 10 2 0 53
Growing Degree Days (base 50) 26 14 4 428
Dew Point  
Dew Point 61 °F 54 °F 41 °F
Precipitation  
Precipitation 1.21 in 0.17 in 0.00 in 5.06 in
Snowdepth - - - -
Wind  
Wind 20 mph 5 mph 0 mph
Gust Wind 34 mph 22 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.14 in 29.89 in 29.18 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 15, 2013 Rise Set
Actual Time 6:47 AM PDT 7:20 PM PDT
Civil Twilight 6:16 AM PDT 7:51 PM PDT
Nautical Twilight 5:39 AM PDT 8:28 PM PDT
Astronomical Twilight 5:01 AM PDT 9:06 PM PDT
Moon 5:03 PM PDT (9/15) 2:16 AM PDT (9/15)
Length of Visible Light 13h 35m
Length of Day
12h 33m
Waxing Gibbous, 83% of the Moon is Illuminated
Sep 15
Waxing Gibbous
Sep 19
Full
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter

Weather History Calendar

Precipitation Actual month total 5.06 Average Month Total: 1.67
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Scattered Clouds
Actual:
82 | 61 0.00
Average:
73 | 54 0.07
Partly Cloudy
Actual:
82 | 64 0.00
Average:
74 | 55 0.06
Rain
Actual:
75 | 64 0.12
Average:
73 | 54 0.02
Rain
Actual:
72 | 62 0.00
Average:
73 | 54 0.02
Thunderstorm
Actual:
69 | 62 0.46
Average:
71 | 53 0.05
Rain
Actual:
73 | 62 1.08
Average:
72 | 53 0.05
Rain
Actual:
73 | 64 0.00
Average:
71 | 53 0.01
Scattered Clouds
Actual:
80 | 60 0.01
Average:
70 | 53 0.06
Partly Cloudy
Actual:
78 | 59 0.00
Average:
71 | 53 0.05
Partly Cloudy
Actual:
77 | 60 0.00
Average:
72 | 52 0.05
Clear
Actual:
89 | 63 0.00
Average:
68 | 51 0.02
Partly Cloudy
Actual:
80 | 60 0.00
Average:
69 | 51 0.01
Mostly Cloudy
Actual:
68 | 61 0.00
Average:
71 | 51 0.02
Partly Cloudy
Actual:
71 | 62 0.00
Average:
72 | 52 0.05
Thunderstorm
Actual:
68 | 59 0.21
Average:
69 | 51 0.01
Mostly Cloudy
Actual:
72 | 62 0.00
Average:
69 | 52 0.04
Overcast
Actual:
64 | 60 0.00
Average:
68 | 51 0.18
Partly Cloudy
Actual:
71 | 57 0.00
Average:
68 | 51 0.08
Scattered Clouds
Actual:
79 | 53 0.00
Average:
67 | 51 0.07
Rain
Actual:
75 | 55 0.15
Average:
67 | 51 0.08
Partly Cloudy
Actual:
71 | 57 0.01
Average:
69 | 51 0.06
Rain
Actual:
63 | 57 0.37
Average:
69 | 50 0.16
Rain
Actual:
63 | 55 0.08
Average:
67 | 51 0.10
Partly Cloudy
Actual:
64 | 52 0.01
Average:
66 | 50 0.07
Rain
Actual:
63 | 48 0.04
Average:
67 | 50 0.06
Fog
Actual:
64 | 44 0.01
Average:
67 | 49 0.05
Rain
Actual:
59 | 52 0.05
Average:
67 | 49 0.05
Rain
Actual:
63 | 55 1.21
Average:
66 | 50 0.06
Rain
Actual:
57 | 55 0.62
Average:
67 | 50 0.03
Rain
Actual:
60 | 51 0.63
Average:
67 | 49 0.03
 

Calendar Legend

Sunny
Clear
Mostly Cloudy
Partly Sunny
Partly Cloudy
Mostly Sunny
Cloudy Rain Snow
Hail
Flurries
Thunderstorms Hazy
Fog
Sleet '?' denotes
'chance of'
Unknown

Daily Weather History & Observations

2013 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Sep high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 82 72 61 57 55 52 82 61 41 29.90 29.86 29.80 10 10 10 7 3 - 0.00  
2 82 73 64 56 54 52 73 55 38 29.95 29.89 29.87 10 10 10 7 2 - 0.00  
3 75 70 64 61 59 54 88 73 48 30.03 29.98 29.94 10 10 8 6 2 - 0.12 Rain
4 72 67 62 59 58 57 84 75 61 30.06 30.03 30.01 10 10 9 12 2 - 0.00 Rain
5 69 65 62 61 58 56 88 80 68 30.04 30.00 29.95 10 9 5 10 2 - 0.46 Rain , Thunderstorm
6 73 68 62 61 60 57 94 83 61 30.12 30.02 29.96 10 8 2 8 5 - 1.08 Rain
7 73 68 64 59 58 56 84 73 55 30.11 30.07 30.02 10 10 10 7 2 - 0.00 Rain
8 80 70 60 58 57 55 86 67 44 30.12 30.07 30.03 10 10 10 6 1 - 0.01  
9 78 68 59 59 57 55 93 76 48 30.08 30.04 29.98 10 6 1 9 3 - 0.00  
10 77 68 60 59 57 55 88 71 54 30.00 29.96 29.89 10 9 3 9 3 - 0.00  
11 89 76 63 59 57 55 75 56 34 29.94 29.91 29.86 10 10 10 9 3 - 0.00  
12 80 70 60 60 58 56 90 71 48 30.01 29.96 29.91 10 8 3 8 2 - 0.00  
13 68 64 61 59 58 57 93 80 73 29.98 29.94 29.88 10 9 3 6 2 - 0.00  
14 71 66 62 59 57 57 82 75 64 29.88 29.82 29.74 10 9 5 6 2 - 0.00  
15 68 64 59 61 58 55 90 84 73 29.82 29.77 29.72 10 7 1 9 4 - 0.21 Rain , Thunderstorm
16 72 66 62 57 55 51 81 72 59 29.94 29.90 29.82 10 10 10 13 7 21 0.00  
17 64 62 60 52 50 46 75 65 50 29.94 29.90 29.87 10 10 10 7 3 - 0.00  
18 71 64 57 53 50 47 81 65 42 30.08 30.04 29.95 10 10 10 10 5 - 0.00  
19 79 66 53 51 48 44 80 59 30 30.04 29.90 29.77 10 10 10 6 1 - 0.00  
20 75 64 55 57 51 49 84 66 42 29.76 29.67 29.60 10 10 4 10 7 - 0.15 Rain
21 71 64 57 56 53 50 88 72 51 29.73 29.69 29.66 10 10 10 8 5 - 0.01  
22 63 60 57 54 52 49 84 76 65 29.76 29.67 29.59 10 10 4 17 10 28 0.37 Rain
23 63 59 55 53 51 49 88 75 65 29.97 29.89 29.77 10 10 10 12 9 20 0.08 Rain
24 64 58 52 50 47 42 86 73 46 29.96 29.90 29.85 10 10 10 14 6 20 0.01  
25 63 56 48 49 47 43 86 74 50 30.04 29.95 29.87 10 10 10 14 3 - 0.04 Rain
26 64 54 44 48 45 41 87 75 53 30.14 30.10 30.04 10 9 3 8 4 - 0.01 Fog
27 59 56 52 51 48 45 83 75 67 30.13 29.99 29.86 10 10 7 15 10 23 0.05 Rain
28 63 59 55 57 53 48 90 82 74 29.84 29.54 29.36 10 8 2 20 10 34 1.21 Rain
29 57 56 55 52 48 45 83 75 67 29.57 29.46 29.18 10 10 7 18 14 34 0.62 Rain
30 60 55 51 52 47 43 83 76 69 29.94 29.70 29.47 10 9 5 18 13 28 0.63 Rain