Weather History for Seattle, WA

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Month of September, 2006

  Max Avg Min Sum
Temperature  
Max Temperature 89 °F 72 °F 55 °F
Mean Temperature 74 °F 62 °F 53 °F
Min Temperature 58 °F 52 °F 47 °F
Degree Days  
Heating Degree Days (base 65) 12 4 0 110
Cooling Degree Days (base 65) 9 1 0 35
Growing Degree Days (base 50) 24 12 2 359
Dew Point  
Dew Point 60 °F 50 °F 26 °F
Precipitation  
Precipitation 0.39 in 0.05 in 0.00 in 1.43 in
Snowdepth - - - -
Wind  
Wind 22 mph 7 mph 0 mph
Gust Wind 25 mph 21 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.34 in 30.07 in 29.72 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 04, 2006 Rise Set
Actual Time 6:32 AM PDT 7:43 PM PDT
Civil Twilight 6:00 AM PDT 8:14 PM PDT
Nautical Twilight 5:22 AM PDT 8:52 PM PDT
Astronomical Twilight 4:41 AM PDT 9:33 PM PDT
Moon 6:36 PM PDT (9/4) 1:56 AM PDT (9/4)
Length of Visible Light 14h 14m
Length of Day
13h 11m
Waxing Gibbous, 87% of the Moon is Illuminated
Sep 4
Waxing Gibbous
Sep 7
Full
Sep 14
Last Quarter
Sep 22
New
Sep 30
First Quarter

Weather History Calendar

Precipitation Actual month total 1.43 Normal Month Total: 1.63
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Scattered Clouds
Actual:
88 | 55 0.00
Average:
74 | 54 0.04
Scattered Clouds
Actual:
89 | 58 0.00
Average:
74 | 54 0.04
Partly Cloudy
Actual:
84 | 56 0.00
Average:
73 | 54 0.04
Scattered Clouds
Actual:
81 | 53 0.00
Average:
73 | 54 0.04
Scattered Clouds
Actual:
80 | 53 0.00
Average:
73 | 54 0.05
Scattered Clouds
Actual:
82 | 55 0.00
Average:
73 | 54 0.05
Partly Cloudy
Actual:
75 | 51 0.00
Average:
73 | 53 0.05
Partly Cloudy
Actual:
71 | 51 T
Average:
72 | 53 0.05
Rain
Actual:
71 | 54 0.02
Average:
72 | 53 0.05
Scattered Clouds
Actual:
74 | 50 0.00
Average:
72 | 53 0.05
Scattered Clouds
Actual:
78 | 52 0.00
Average:
72 | 53 0.05
Scattered Clouds
Actual:
75 | 57 0.00
Average:
71 | 53 0.05
Rain
Actual:
63 | 51 0.03
Average:
71 | 52 0.05
Rain
Actual:
63 | 50 0.31
Average:
71 | 52 0.05
Rain
Actual:
63 | 49 0.06
Average:
71 | 52 0.05
Rain
Actual:
68 | 48 0.01
Average:
70 | 52 0.05
Overcast
Actual:
66 | 52 T
Average:
70 | 52 0.06
Rain
Actual:
68 | 55 0.39
Average:
70 | 52 0.06
Rain
Actual:
61 | 51 0.15
Average:
69 | 51 0.06
Rain
Actual:
55 | 51 0.29
Average:
69 | 51 0.06
Rain
Actual:
60 | 47 0.17
Average:
69 | 51 0.06
Fog
Actual:
63 | 47 0.00
Average:
69 | 51 0.06
Fog
Actual:
70 | 47 0.00
Average:
68 | 51 0.06
Fog
Actual:
77 | 50 0.00
Average:
68 | 50 0.06
Scattered Clouds
Actual:
77 | 52 0.00
Average:
67 | 50 0.06
Fog
Actual:
78 | 54 0.00
Average:
67 | 50 0.06
Clear
Actual:
80 | 54 0.00
Average:
67 | 50 0.06
Clear
Actual:
77 | 56 0.00
Average:
66 | 50 0.07
Fog
Actual:
75 | 54 0.00
Average:
66 | 49 0.07
Mostly Cloudy
Actual:
60 | 52 0.00
Average:
66 | 49 0.07
 

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

2006 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 88 72 55 49 43 26 77 45 13 30.18 30.06 29.94 10 10 10 22 12 24 0.00  
2 89 74 58 48 43 34 62 39 15 29.95 29.89 29.83 10 10 10 15 7 17 0.00  
3 84 70 56 52 48 38 77 49 20 29.92 29.88 29.84 10 10 10 12 5 14 0.00  
4 81 67 53 53 50 41 93 64 35 30.12 30.01 29.91 10 10 10 15 6 17 0.00  
5 80 67 53 55 52 49 100 68 35 30.25 30.20 30.14 10 8 2 15 5 20 0.00  
6 82 69 55 54 52 49 86 60 33 30.22 30.17 30.11 10 10 9 9 4 13 0.00  
7 75 63 51 52 51 50 100 72 44 30.13 30.05 29.90 10 7 0 10 5 13 0.00  
8 71 61 51 54 50 47 96 72 47 29.91 29.87 29.82 10 10 6 14 7 17 T  
9 71 63 54 56 51 45 93 69 44 30.12 30.00 29.87 10 10 8 20 12 25 0.02 Rain
10 74 62 50 50 46 43 89 62 35 30.17 30.14 30.11 10 10 10 14 7 16 0.00  
11 78 65 52 51 46 34 77 50 23 30.20 30.16 30.13 10 10 9 15 7 16 0.00  
12 75 66 57 54 52 48 86 65 43 30.22 30.18 30.14 10 10 9 16 8 22 0.00  
13 63 57 51 54 49 44 93 74 55 30.14 30.06 29.89 10 8 0 17 10 22 0.03 Rain
14 63 57 50 50 47 44 93 73 52 29.89 29.80 29.72 10 10 6 15 8 18 0.31 Rain
15 63 56 49 51 47 41 89 70 51 29.98 29.81 29.73 10 10 5 13 5 15 0.06 Rain
16 68 58 48 51 47 43 93 68 42 30.24 30.15 30.00 10 10 10 21 9 24 0.01 Rain
17 66 59 52 52 48 44 83 68 52 30.23 30.15 30.02 10 10 10 12 6 14 T  
18 68 62 55 60 55 51 100 79 58 30.02 29.98 29.95 10 7 1 16 8 20 0.39 Rain
19 61 56 51 52 51 48 93 80 67 30.18 30.06 29.96 10 10 6 13 4 - 0.15 Rain
20 55 53 51 54 51 48 100 92 83 30.19 30.06 29.92 10 7 2 16 10 20 0.29 Rain
21 60 54 47 52 49 46 100 86 72 30.18 30.02 29.93 10 8 3 16 7 20 0.17 Rain
22 63 55 47 50 47 45 100 78 55 30.34 30.28 30.21 10 7 0 12 5 13 0.00 Fog
23 70 59 47 52 49 46 100 74 47 30.34 30.29 30.21 10 7 0 14 6 16 0.00 Fog
24 77 64 50 58 53 50 100 75 50 30.22 30.17 30.10 10 7 0 10 5 13 0.00 Fog
25 77 65 52 57 53 46 93 63 33 30.15 30.12 30.08 10 10 6 14 4 15 0.00  
26 78 66 54 55 53 51 93 67 40 30.16 30.13 30.10 10 8 0 12 5 14 0.00 Fog
27 80 67 54 58 56 53 93 69 45 30.19 30.14 30.11 10 10 8 9 3 12 0.00  
28 77 67 56 57 55 53 93 70 47 30.19 30.14 30.10 10 10 8 12 5 14 0.00  
29 75 65 54 56 54 52 100 73 46 30.11 30.05 29.96 10 6 0 14 5 16 0.00 Fog
30 60 56 52 52 48 43 96 77 57 30.04 30.00 29.95 10 8 2 15 7 17 0.00