Weather History for Nantucket, MA

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Month of December, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 57 °F 47 °F 36 °F
Mean Temperature 52 °F 41 °F 32 °F
Min Temperature 48 °F 35 °F 25 °F
Degree Days  
Heating Degree Days (base 65) 34 24 14 742
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 2 0 0 3
Dew Point  
Dew Point 57 °F 36 °F 11 °F
Precipitation  
Precipitation 1.34 in 0.17 in 0.00 in 5.37 in
Snowdepth - - - -
Wind  
Wind 45 mph 13 mph 0 mph
Gust Wind 59 mph 27 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.59 in 29.96 in 29.08 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 31, 2012 Rise Set
Actual Time 7:05 AM EST 4:21 PM EST
Civil Twilight 6:34 AM EST 4:52 PM EST
Nautical Twilight 6:00 AM EST 5:27 PM EST
Astronomical Twilight 5:26 AM EST 6:00 PM EST
Moon 7:50 PM EST (12/31) 8:43 AM EST (12/31)
Length of Visible Light 10h 17m
Length of Day
9h 15m
Waning Gibbous, 90% of the Moon is Illuminated
Dec 31
Waning Gibbous
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter
Jan 26
Full

Weather History Calendar

Precipitation Actual month total 5.37 Average Month Total: 4.52
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Rain
Actual:
48 | 37 0.08
Average:
45 | 32 0.14
Partly Cloudy
Actual:
54 | 48 0.00
Average:
47 | 33 0.18
Partly Cloudy
Actual:
55 | 37 0.00
Average:
45 | 30 0.06
Rain
Actual:
52 | 37 0.01
Average:
43 | 31 0.18
Rain
Actual:
55 | 39 0.01
Average:
45 | 30 0.16
Partly Cloudy
Actual:
39 | 26 0.00
Average:
46 | 32 0.20
Partly Cloudy
Actual:
48 | 28 0.00
Average:
46 | 30 0.18
Rain
Actual:
55 | 46 0.44
Average:
45 | 33 0.08
Rain
Actual:
50 | 45 0.07
Average:
47 | 32 0.24
Rain
Actual:
57 | 46 0.48
Average:
44 | 30 0.06
Rain
Actual:
55 | 37 0.02
Average:
44 | 30 0.09
Clear
Actual:
39 | 34 0.00
Average:
44 | 29 0.11
Partly Cloudy
Actual:
45 | 30 0.00
Average:
46 | 31 0.06
Scattered Clouds
Actual:
46 | 30 0.00
Average:
44 | 31 0.12
Clear
Actual:
44 | 30 0.00
Average:
45 | 31 0.19
Rain
Actual:
43 | 30 0.27
Average:
44 | 30 0.21
Rain
Actual:
50 | 44 0.21
Average:
43 | 27 0.23
Rain
Actual:
52 | 45 0.33
Average:
40 | 26 0.04
Rain
Actual:
46 | 41 0.01
Average:
39 | 24 0.02
Rain
Actual:
44 | 39 0.01
Average:
40 | 28 0.07
Rain
Actual:
54 | 42 0.70
Average:
43 | 30 0.26
Rain
Actual:
43 | 33 0.01
Average:
40 | 29 0.34
Partly Cloudy
Actual:
41 | 34 0.00
Average:
42 | 28 0.18
Rain
Actual:
39 | 30 0.00
Average:
41 | 27 0.06
Rain
Actual:
46 | 35 0.14
Average:
41 | 24 0.10
Rain
Actual:
41 | 34 0.23
Average:
41 | 26 0.38
Snow
Actual:
52 | 33 0.98
Average:
39 | 26 0.06
Snow
Actual:
37 | 30 0.00
Average:
39 | 25 0.15
Snow
Actual:
44 | 25 1.34
Average:
40 | 26 0.12
Snow
Actual:
36 | 27 0.03
Average:
40 | 24 0.08
Scattered Clouds
Actual:
39 | 26 0.00
Average:
38 | 25 0.17
 

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 48 42 37 43 37 25 93 82 62 30.59 30.53 30.47 10 10 6 15 10 16 0.08 Rain
2 54 51 48 51 49 45 100 91 86 30.45 30.26 30.13 10 7 2 17 12 - 0.00  
3 55 46 37 49 43 38 100 85 67 30.29 30.15 30.07 10 7 3 17 11 - 0.00  
4 52 44 37 50 44 37 100 97 83 30.34 30.27 30.07 10 5 0 14 6 - 0.01 Fog , Rain
5 55 47 39 53 43 24 97 78 53 30.06 29.95 29.88 10 8 4 22 14 32 0.01 Rain
6 39 32 26 27 24 20 92 69 55 30.32 30.26 30.10 10 10 10 22 13 31 0.00  
7 48 38 28 48 39 25 100 85 71 30.31 30.18 30.07 10 10 10 14 5 - 0.00  
8 55 50 46 55 50 46 100 98 93 30.06 29.94 29.84 10 4 0 18 6 25 0.44 Fog , Rain
9 50 48 45 48 44 36 100 87 63 30.27 30.17 29.99 10 8 3 18 10 26 0.07 Rain
10 57 52 46 57 53 44 100 99 93 30.09 29.77 29.55 6 2 0 22 16 30 0.48 Fog , Rain
11 55 47 37 55 46 26 100 89 62 30.14 29.77 29.57 10 6 0 18 11 22 0.02 Fog , Rain
12 39 36 34 29 26 23 70 64 57 30.41 30.31 30.16 10 10 10 14 12 22 0.00  
13 45 38 30 29 27 25 85 63 49 30.43 30.38 30.31 10 10 10 13 7 - 0.00  
14 46 38 30 37 31 26 82 70 56 30.29 30.18 30.10 10 10 10 21 9 29 0.00  
15 44 37 30 33 29 25 82 69 58 30.31 30.26 30.17 10 10 10 15 10 22 0.00  
16 43 36 30 43 34 24 100 84 65 30.30 30.13 29.99 10 6 2 23 13 32 0.27 Rain
17 50 47 44 49 47 43 100 96 93 29.99 29.86 29.71 10 6 2 20 16 29 0.21 Rain
18 52 48 45 52 49 44 100 97 88 29.69 29.53 29.44 10 5 1 15 10 20 0.33 Rain
19 46 44 41 45 36 33 93 78 65 29.96 29.67 29.44 10 10 10 29 18 39 0.01 Rain
20 44 42 39 38 35 33 89 81 66 30.17 30.08 29.96 10 10 10 22 15 32 0.01 Rain
21 54 48 42 52 45 33 100 87 68 30.00 29.44 29.17 10 6 1 37 22 50 0.70 Rain
22 43 38 33 36 29 18 89 71 52 29.67 29.42 29.30 10 10 6 24 17 37 0.01 Rain
23 41 38 34 31 25 18 70 60 47 29.91 29.84 29.68 10 10 10 24 18 37 0.00  
24 39 34 30 33 25 23 86 67 53 30.08 30.02 29.91 10 10 10 14 7 - 0.00 Rain
25 46 40 35 45 39 32 100 92 86 30.17 30.01 29.93 10 9 3 20 8 29 0.14 Rain
26 41 38 34 38 32 27 93 78 65 30.28 30.15 29.86 10 9 6 28 12 39 0.23 Rain
27 52 42 33 52 44 29 100 95 85 29.80 29.38 29.21 10 4 0 39 19 59 0.98 Fog , Rain , Snow
28 37 34 30 30 25 22 87 72 59 30.01 29.83 29.56 10 9 2 23 18 34 0.00 Snow
29 44 34 25 43 35 22 100 90 73 30.01 29.48 29.08 10 6 2 45 14 58 1.34 Rain , Snow
30 36 32 27 34 24 13 93 73 51 29.95 29.58 29.27 10 10 7 31 25 44 0.03 Snow
31 39 32 26 31 21 11 76 62 53 30.06 29.97 29.81 10 10 10 26 19 40 0.00