Weather History for Seattle, WA

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Month of December, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 56 °F 45 °F 32 °F
Mean Temperature 51 °F 40 °F 26 °F
Min Temperature 47 °F 35 °F 19 °F
Degree Days  
Heating Degree Days (base 65) 39 25 14 778
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 2 0 0 2
Dew Point  
Dew Point 49 °F 32 °F 1 °F
Precipitation  
Precipitation 0.42 in 0.06 in 0.00 in 1.66 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 30 mph 6 mph 0 mph
Gust Wind 41 mph 24 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.65 in 30.30 in 29.72 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 27, 2013 Rise Set
Actual Time 7:56 AM PST 4:24 PM PST
Civil Twilight 7:20 AM PST 5:00 PM PST
Nautical Twilight 6:41 AM PST 5:39 PM PST
Astronomical Twilight 6:03 AM PST 6:17 PM PST
Moon 2:20 AM PST (12/27) 12:51 PM PST (12/27)
Length of Visible Light 9h 40m
Length of Day
8h 28m
Waning Crescent, 27% of the Moon is Illuminated
Dec 27
Waning Crescent
Jan 1
New
Jan 7
First Quarter
Jan 15
Full
Jan 23
Last Quarter

Weather History Calendar

Precipitation Actual month total 1.66 Normal Month Total: 5.35
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Rain
Actual:
56 | 46 0.12
Average:
47 | 37 0.20
Snow
Actual:
46 | 35 0.18
Average:
47 | 37 0.20
Scattered Clouds
Actual:
41 | 31 0.00
Average:
47 | 36 0.20
Scattered Clouds
Actual:
40 | 28 0.00
Average:
47 | 36 0.19
Partly Cloudy
Actual:
34 | 23 0.00
Average:
47 | 36 0.19
Partly Cloudy
Actual:
34 | 24 0.00
Average:
46 | 36 0.18
Clear
Actual:
32 | 19 0.00
Average:
46 | 36 0.19
Partly Cloudy
Actual:
36 | 20 0.00
Average:
46 | 36 0.18
Mostly Cloudy
Actual:
34 | 23 0.00
Average:
46 | 36 0.17
Mostly Cloudy
Actual:
42 | 33 0.00
Average:
46 | 36 0.17
Fog
Actual:
41 | 29 0.00
Average:
46 | 35 0.17
Rain
Actual:
42 | 31 0.27
Average:
46 | 35 0.16
Rain
Actual:
49 | 42 0.02
Average:
46 | 35 0.17
Overcast
Actual:
49 | 43 T
Average:
45 | 35 0.17
Rain
Actual:
53 | 47 0.05
Average:
45 | 35 0.16
Rain
Actual:
50 | 40 0.01
Average:
45 | 35 0.17
Fog
Actual:
47 | 40 0.00
Average:
45 | 35 0.16
Rain
Actual:
46 | 36 0.05
Average:
45 | 35 0.16
Partly Cloudy
Actual:
41 | 32 0.00
Average:
45 | 35 0.17
Snow
Actual:
47 | 33 0.22
Average:
45 | 35 0.16
Rain
Actual:
48 | 42 0.22
Average:
45 | 35 0.17
Rain
Actual:
51 | 47 0.42
Average:
45 | 35 0.17
Rain
Actual:
53 | 43 0.06
Average:
45 | 35 0.17
Partly Cloudy
Actual:
47 | 37 0.00
Average:
45 | 35 0.17
Fog
Actual:
44 | 35 0.00
Average:
45 | 35 0.17
Fog
Actual:
44 | 33 0.00
Average:
45 | 36 0.17
Rain
Actual:
48 | 32 0.01
Average:
45 | 36 0.17
Fog
Actual:
49 | 38 0.00
Average:
45 | 36 0.16
Fog
Actual:
45 | 35 0.00
Average:
45 | 36 0.16
Rain
Actual:
48 | 40 0.01
Average:
45 | 36 0.16
Rain
Actual:
47 | 41 0.02
Average:
46 | 36 0.16
 

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
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 56 51 46 49 46 35 89 75 61 30.09 29.90 29.80 10 8 1 30 20 41 0.12 Rain
2 46 41 35 34 31 30 85 72 58 30.08 29.95 29.84 10 9 3 25 8 32 0.18 Rain , Snow
3 41 36 31 28 24 21 82 64 45 30.34 30.24 30.07 10 10 10 25 13 29 0.00  
4 40 34 28 24 20 17 78 59 40 30.38 30.35 30.32 10 10 10 8 4 10 0.00  
5 34 29 23 23 16 10 68 56 43 30.34 30.28 30.21 10 10 10 13 6 16 0.00  
6 34 29 24 9 5 4 46 37 28 30.25 30.20 30.16 10 10 10 20 11 25 0.00  
7 32 26 19 9 5 1 57 42 26 30.45 30.37 30.25 10 10 10 12 7 16 0.00  
8 36 28 20 16 11 7 57 49 40 30.61 30.53 30.45 10 10 10 9 5 10 0.00  
9 34 29 23 22 17 13 63 57 51 30.61 30.57 30.52 10 10 10 9 3 12 0.00  
10 42 38 33 31 28 22 82 72 61 30.52 30.48 30.43 10 9 6 8 3 10 0.00  
11 41 35 29 35 30 25 85 69 53 30.43 30.31 30.19 10 7 0 7 2 9 0.00 Fog
12 42 37 31 39 35 28 100 83 65 30.18 30.11 30.07 10 4 0 14 5 17 0.27 Fog , Rain
13 49 46 42 46 43 39 93 87 80 30.45 30.34 30.14 10 7 1 13 7 16 0.02 Rain
14 49 46 43 43 42 39 92 86 80 30.47 30.40 30.37 10 10 9 18 8 25 T  
15 53 50 47 46 45 43 93 87 80 30.48 30.40 30.33 10 7 0 17 9 22 0.05 Fog , Rain
16 50 45 40 45 41 37 96 87 77 30.52 30.42 30.28 10 6 0 7 2 8 0.01 Fog , Rain
17 47 44 40 42 38 37 92 84 76 30.28 30.20 30.13 10 4 0 17 6 22 0.00 Fog
18 46 41 36 42 36 30 92 77 62 30.18 30.11 30.04 10 8 2 16 6 20 0.05 Rain
19 41 37 32 34 26 21 79 64 48 30.38 30.29 30.19 10 10 10 15 5 20 0.00  
20 47 40 33 43 34 24 92 81 69 30.21 29.91 29.72 10 4 0 29 8 37 0.22 Rain , Snow
21 48 45 42 45 41 37 93 88 82 30.20 30.10 29.88 10 2 1 13 5 17 0.22 Rain
22 51 49 47 47 46 43 93 88 83 30.33 30.27 30.19 10 4 0 16 9 20 0.42 Rain
23 53 48 43 47 42 37 86 73 59 30.54 30.30 30.17 10 9 2 29 13 38 0.06 Rain
24 47 42 37 39 36 32 86 78 70 30.65 30.60 30.53 10 10 9 9 4 13 0.00  
25 44 40 35 36 33 32 92 81 70 30.54 30.48 30.42 10 6 0 8 2 9 0.00 Fog
26 44 39 33 37 35 32 100 88 76 30.42 30.34 30.23 8 3 0 8 1 8 0.00 Fog
27 48 40 32 43 36 28 100 91 82 30.40 30.23 30.15 10 4 0 23 5 28 0.01 Fog , Rain
28 49 44 38 43 40 36 92 86 79 30.55 30.50 30.38 10 7 0 7 3 9 0.00 Fog
29 45 40 35 38 36 34 92 84 76 30.50 30.43 30.34 9 2 0 7 2 10 0.00 Fog
30 48 44 40 40 38 36 93 85 76 30.33 30.23 30.16 10 3 0 22 6 26 0.01 Fog , Rain
31 47 44 41 45 41 37 93 82 71 30.41 30.31 30.20 10 4 0 12 4 15 0.02 Fog , Rain