Weather History for Martha's Vineyard, MA

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Month of December, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 60 °F 47 °F 33 °F
Mean Temperature 53 °F 39 °F 28 °F
Min Temperature 48 °F 32 °F 16 °F
Degree Days  
Heating Degree Days (base 65) 38 26 12 793
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 3 0 0 7
Dew Point  
Dew Point 61 °F 35 °F 11 °F
Precipitation  
Precipitation 1.70 in 0.20 in 0.00 in 6.07 in
Snowdepth - - - -
Wind  
Wind 33 mph 10 mph 0 mph
Gust Wind 46 mph 24 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.58 in 29.97 in 29.16 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 30, 2012 Rise Set
Actual Time 7:08 AM EST 4:22 PM EST
Civil Twilight 6:37 AM EST 4:53 PM EST
Nautical Twilight 6:02 AM EST 5:28 PM EST
Astronomical Twilight 5:28 AM EST 6:01 PM EST
Moon 6:52 PM EST (12/30) 8:14 AM EST (12/30)
Length of Visible Light 10h 16m
Length of Day
9h 13m
Waning Gibbous, 95% of the Moon is Illuminated
Dec 30
Waning Gibbous
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter
Jan 26
Full

Weather History Calendar

Precipitation Actual month total 6.07 Average Month Total: 4.34
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Snow
Actual:
46 | 33 0.06
Average:
46 | 32 0.08
Partly Cloudy
Actual:
57 | 48 0.01
Average:
47 | 31 0.08
Fog
Actual:
59 | 30 0.00
Average:
48 | 30 0.15
Fog
Actual:
54 | 28 0.00
Average:
46 | 30 0.08
Rain
Actual:
57 | 37 0.03
Average:
44 | 29 0.23
Clear
Actual:
39 | 16 0.00
Average:
44 | 27 0.25
Rain
Actual:
50 | 16 0.01
Average:
46 | 28 0.10
Rain
Actual:
57 | 46 0.32
Average:
45 | 28 0.07
Rain
Actual:
50 | 43 0.16
Average:
44 | 29 0.15
Thunderstorm
Actual:
60 | 46 1.70
Average:
45 | 29 0.18
Rain
Actual:
57 | 37 0.02
Average:
44 | 29 0.15
Clear
Actual:
39 | 23 0.00
Average:
42 | 28 0.21
Clear
Actual:
45 | 19 0.00
Average:
44 | 28 0.17
Scattered Clouds
Actual:
48 | 21 0.00
Average:
45 | 28 0.07
Clear
Actual:
45 | 32 0.00
Average:
44 | 28 0.15
Rain
Actual:
42 | 35 0.12
Average:
45 | 29 0.21
Rain
Actual:
48 | 42 0.29
Average:
43 | 29 0.16
Rain
Actual:
55 | 46 0.33
Average:
42 | 26 0.11
Mostly Cloudy
Actual:
46 | 39 0.01
Average:
40 | 24 0.08
Rain
Actual:
43 | 36 0.00
Average:
40 | 25 0.09
Rain
Actual:
53 | 41 0.53
Average:
41 | 26 0.08
Rain
Actual:
41 | 33 0.07
Average:
42 | 26 0.21
Snow
Actual:
39 | 34 0.00
Average:
41 | 25 0.21
Rain
Actual:
39 | 28 0.00
Average:
41 | 25 0.14
Rain
Actual:
41 | 30 0.09
Average:
42 | 23 0.11
Rain
Actual:
39 | 23 0.22
Average:
39 | 21 0.08
Snow
Actual:
53 | 33 0.53
Average:
39 | 22 0.20
Snow
Actual:
37 | 25 0.00
Average:
38 | 22 0.05
Snow
Actual:
41 | 21 1.55
Average:
41 | 25 0.16
Snow
Actual:
33 | 24 0.02
Average:
41 | 26 0.18
Partly Cloudy
Actual:
39 | 23 0.00
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

2012 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 46 40 33 43 35 24 100 85 59 30.58 30.53 30.46 10 10 5 13 9 - 0.06 Rain , Snow
2 57 52 48 54 50 44 97 90 74 30.44 30.29 30.11 10 10 9 15 11 23 0.01  
3 59 44 30 52 44 29 100 85 58 30.29 30.15 30.07 10 9 0 18 10 30 0.00 Fog
4 54 41 28 53 39 28 100 96 80 30.34 30.26 30.05 10 5 0 14 3 22 0.00 Fog
5 57 47 37 55 41 21 97 72 47 30.09 29.96 29.89 10 9 7 22 14 32 0.03 Rain
6 39 28 16 20 18 13 92 63 46 30.32 30.27 30.12 10 10 7 18 10 24 0.00  
7 50 33 16 45 37 14 100 89 71 30.31 30.17 30.06 10 10 8 14 2 21 0.01 Rain
8 57 52 46 57 51 46 100 99 93 30.05 29.93 29.83 10 5 0 13 4 21 0.32 Fog , Rain
9 50 46 43 48 42 30 100 85 52 30.27 30.17 30.00 10 8 4 17 9 24 0.16 Rain
10 60 53 46 61 56 45 100 99 88 30.09 29.73 29.53 10 4 1 23 14 31 1.70 Rain , Thunderstorm
11 57 47 37 57 42 23 100 82 54 30.15 29.82 29.57 10 9 2 15 8 23 0.02 Rain
12 39 31 23 24 22 20 88 67 53 30.43 30.32 30.16 10 10 10 16 9 22 0.00  
13 45 33 19 29 25 18 96 75 49 30.45 30.39 30.31 10 10 4 9 5 - 0.00  
14 48 34 21 34 28 18 92 71 48 30.28 30.19 30.09 10 10 5 16 4 24 0.00  
15 45 38 32 31 27 24 82 68 47 30.32 30.26 30.17 10 10 10 13 7 21 0.00  
16 42 38 35 41 33 26 100 85 65 30.31 30.15 30.00 10 8 3 18 11 30 0.12 Rain
17 48 45 42 48 46 42 100 98 93 29.98 29.87 29.73 7 4 2 21 13 25 0.29 Rain
18 55 50 46 54 48 43 100 97 86 29.70 29.50 29.43 10 7 1 15 9 21 0.33 Rain
19 46 42 39 43 33 30 89 67 56 29.99 29.65 29.45 10 10 10 24 14 34 0.01  
20 43 40 36 36 33 30 87 77 66 30.18 30.12 30.01 10 10 10 15 9 21 0.00 Rain
21 53 47 41 54 44 29 100 87 60 29.97 29.44 29.16 10 7 2 25 16 43 0.53 Rain
22 41 37 33 36 26 18 93 65 47 29.67 29.44 29.29 10 10 5 24 13 37 0.07 Rain
23 39 36 34 29 24 18 73 57 48 29.90 29.84 29.69 10 10 10 24 15 36 0.00 Snow
24 39 34 28 32 23 21 86 64 49 30.07 30.02 29.91 10 10 10 12 5 16 0.00 Rain
25 41 36 30 40 34 25 100 91 75 30.19 30.02 29.94 10 10 6 15 7 23 0.09 Rain
26 39 31 23 38 31 22 96 82 63 30.28 30.11 29.83 10 9 5 29 13 39 0.22 Rain
27 53 43 33 52 43 28 100 92 82 29.80 29.37 29.20 10 8 2 33 20 46 0.53 Rain , Snow
28 37 31 25 31 24 20 92 70 53 30.02 29.84 29.61 10 9 2 22 14 33 0.00 Snow
29 41 31 21 39 32 19 100 92 70 30.02 29.57 29.23 10 6 1 23 9 37 1.55 Rain , Snow
30 33 29 24 34 23 12 100 75 60 29.98 29.63 29.31 10 9 2 28 20 40 0.02 Snow
31 39 31 23 29 21 11 76 65 57 30.09 29.98 29.82 10 10 10 21 14 32 0.00