Weather History for Martha's Vineyard, MA

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Month of December, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 62 °F 51 °F 33 °F
Mean Temperature 58 °F 41 °F 28 °F
Min Temperature 57 °F 31 °F 10 °F
Degree Days  
Heating Degree Days (base 65) 37 24 6 743
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 8 1 0 20
Dew Point  
Dew Point 60 °F 34 °F 5 °F
Precipitation  
Precipitation 0.61 in 0.08 in 0.00 in 2.59 in
Snowdepth - - - -
Wind  
Wind 36 mph 9 mph 0 mph
Gust Wind 47 mph 23 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.67 in 30.11 in 29.17 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 18, 2011 Rise Set
Actual Time 7:03 AM EST 4:14 PM EST
Civil Twilight 6:31 AM EST 4:46 PM EST
Nautical Twilight 5:57 AM EST 5:20 PM EST
Astronomical Twilight 5:23 AM EST 5:54 PM EST
Moon No Moon Rise 11:41 AM EST (12/18)
Length of Visible Light 10h 14m
Length of Day
9h 11m
Last Quarter, 42% of the Moon is Illuminated
Dec 18
Last Quarter
Dec 24
New
Jan 1
First Quarter
Jan 9
Full
Jan 16
Last Quarter

Weather History Calendar

Precipitation Actual month total 2.59 Average Month Total: 4.34
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Scattered Clouds
Actual:
48 | 26 0.00
Average:
46 | 32 0.08
Scattered Clouds
Actual:
52 | 26 0.00
Average:
47 | 31 0.08
Scattered Clouds
Actual:
48 | 27 0.00
Average:
48 | 30 0.15
Fog
Actual:
55 | 26 0.00
Average:
46 | 30 0.08
Fog
Actual:
59 | 48 0.00
Average:
44 | 29 0.23
Rain
Actual:
61 | 54 0.14
Average:
44 | 27 0.25
Rain
Actual:
61 | 57 0.61
Average:
46 | 28 0.10
Rain
Actual:
62 | 30 0.23
Average:
45 | 28 0.07
Scattered Clouds
Actual:
55 | 25 0.00
Average:
44 | 29 0.15
Rain
Actual:
51 | 34 0.00
Average:
45 | 29 0.18
Clear
Actual:
39 | 21 0.00
Average:
44 | 29 0.15
Fog
Actual:
48 | 21 0.00
Average:
42 | 28 0.21
Scattered Clouds
Actual:
48 | 30 0.00
Average:
44 | 28 0.17
Rain
Actual:
46 | 32 0.00
Average:
45 | 28 0.07
Rain
Actual:
57 | 35 0.11
Average:
44 | 28 0.15
Rain
Actual:
57 | 42 0.02
Average:
45 | 29 0.21
Partly Cloudy
Actual:
45 | 30 0.00
Average:
43 | 29 0.16
Partly Cloudy
Actual:
33 | 23 0.00
Average:
42 | 26 0.11
Partly Cloudy
Actual:
51 | 10 0.00
Average:
40 | 24 0.08
Scattered Clouds
Actual:
50 | 30 0.00
Average:
40 | 25 0.09
Rain
Actual:
57 | 39 0.23
Average:
41 | 26 0.08
Rain
Actual:
59 | 39 0.05
Average:
42 | 26 0.21
Rain
Actual:
48 | 37 0.51
Average:
41 | 25 0.21
Partly Cloudy
Actual:
36 | 25 0.00
Average:
41 | 25 0.14
Rain
Actual:
48 | 15 0.11
Average:
42 | 23 0.11
Partly Cloudy
Actual:
46 | 24 0.00
Average:
39 | 21 0.08
Rain
Actual:
55 | 21 0.18
Average:
39 | 22 0.20
Rain
Actual:
57 | 32 0.21
Average:
38 | 22 0.05
Scattered Clouds
Actual:
36 | 27 0.00
Average:
41 | 25 0.16
Scattered Clouds
Actual:
51 | 25 0.00
Average:
41 | 26 0.18
Rain
Actual:
57 | 41 0.19
Average:
39 | 22 0.15
 

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

2011 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 48 37 26 34 31 23 89 67 54 30.27 30.08 29.86 10 10 10 16 10 22 0.00  
2 52 39 26 36 30 21 88 64 48 30.42 30.32 30.27 10 10 10 15 5 22 0.00  
3 48 38 27 33 29 23 89 68 50 30.67 30.60 30.45 10 10 10 16 10 22 0.00  
4 55 40 26 47 35 21 100 87 66 30.62 30.51 30.43 10 4 0 14 2 - 0.00 Fog
5 59 54 48 54 50 46 100 91 82 30.43 30.34 30.25 10 6 0 9 5 - 0.00 Fog
6 61 58 54 56 55 52 94 89 82 30.23 30.06 29.94 10 10 6 15 10 23 0.14 Rain
7 61 58 57 59 57 55 94 92 88 29.93 29.71 29.40 10 8 1 13 9 23 0.61 Rain
8 62 49 30 60 38 23 93 73 41 30.29 29.66 29.17 10 10 5 36 18 47 0.23 Rain
9 55 40 25 45 35 21 86 71 49 30.38 30.30 30.20 10 10 10 20 6 24 0.00  
10 51 42 34 44 32 16 90 64 46 30.41 30.22 30.14 10 10 10 14 7 21 0.00 Rain
11 39 30 21 21 17 14 78 58 40 30.63 30.57 30.43 10 10 10 9 5 - 0.00  
12 48 34 21 37 28 16 93 80 56 30.61 30.51 30.41 10 7 0 13 4 20 0.00 Fog
13 48 39 30 39 30 21 93 73 33 30.40 30.32 30.24 10 8 1 12 3 22 0.00  
14 46 39 32 39 33 27 96 75 57 30.41 30.35 30.29 10 10 10 13 6 - 0.00 Rain
15 57 46 35 52 43 29 89 75 65 30.35 30.02 29.77 10 10 8 23 10 32 0.11 Rain
16 57 50 42 52 35 26 87 58 39 30.07 29.93 29.70 10 10 10 21 15 32 0.02 Rain
17 45 38 30 31 25 16 89 60 46 30.09 30.05 30.00 10 10 10 17 8 25 0.00  
18 33 28 23 24 19 8 76 63 51 30.28 30.16 30.07 10 10 10 21 13 26 0.00  
19 51 30 10 39 28 6 81 63 47 30.28 30.07 29.89 10 10 10 23 10 36 0.00  
20 50 40 30 37 27 17 69 57 40 30.24 30.10 29.89 10 10 10 17 11 25 0.00  
21 57 48 39 56 48 28 94 83 63 30.22 29.99 29.73 10 9 3 22 12 32 0.23 Rain
22 59 49 39 56 44 36 93 76 49 30.10 29.95 29.68 10 9 1 22 13 37 0.05 Rain
23 48 44 37 45 40 25 93 82 60 30.15 29.94 29.80 10 9 4 15 9 22 0.51 Rain
24 36 30 25 25 20 16 69 63 50 30.48 30.35 30.16 10 10 10 16 9 24 0.00  
25 48 32 15 40 26 10 84 71 55 30.48 30.23 29.88 10 10 10 15 6 24 0.11 Rain
26 46 36 24 39 28 19 89 65 40 30.26 30.03 29.82 10 10 10 23 8 36 0.00  
27 55 38 21 53 39 17 94 77 63 30.21 29.91 29.42 10 9 5 28 9 39 0.18 Rain
28 57 44 32 55 39 18 94 72 52 29.67 29.41 29.33 10 9 4 30 17 38 0.21 Rain
29 36 32 27 23 15 5 61 48 36 30.05 29.90 29.69 10 10 10 17 13 30 0.00  
30 51 38 25 46 36 19 90 77 64 30.10 30.07 30.04 10 10 10 18 6 23 0.00  
31 57 49 41 54 48 39 94 90 83 30.03 29.86 29.76 10 8 2 15 8 18 0.19 Rain