Weather History for Plymouth, MA

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Month of December, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 62 °F 45 °F 30 °F
Mean Temperature 52 °F 38 °F 26 °F
Min Temperature 44 °F 31 °F 19 °F
Degree Days  
Heating Degree Days (base 65) 39 27 13 834
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 2 0 0 2
Dew Point  
Dew Point 59 °F 32 °F 9 °F
Precipitation  
Precipitation 1.63 in 0.18 in 0.00 in 5.43 in
Snowdepth - - - -
Wind  
Wind 30 mph 7 mph 0 mph
Gust Wind 54 mph 23 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.61 in 29.97 in 29.14 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 31, 2012 Rise Set
Actual Time 7:10 AM EST 4:21 PM EST
Civil Twilight 6:39 AM EST 4:53 PM EST
Nautical Twilight 6:04 AM EST 5:28 PM EST
Astronomical Twilight 5:30 AM EST 6:02 PM EST
Moon 7:52 PM EST (12/31) 8:47 AM EST (12/31)
Length of Visible Light 10h 14m
Length of Day
9h 11m
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 5.43 Average Month Total: 4.61
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Snow
Actual:
39 | 34 0.04
Average:
46 | 27 0.10
Partly Cloudy
Actual:
57 | 39 0.02
Average:
46 | 26 0.09
Scattered Clouds
Actual:
60 | 32 0.00
Average:
48 | 25 0.18
Rain
Actual:
55 | 30 0.00
Average:
46 | 26 0.19
Rain
Actual:
57 | 37 0.02
Average:
42 | 24 0.27
Clear
Actual:
39 | 21 0.00
Average:
42 | 23 0.14
Rain
Actual:
46 | 21 0.05
Average:
47 | 25 0.12
Rain
Actual:
50 | 44 0.27
Average:
42 | 24 0.06
Rain
Actual:
50 | 37 0.06
Average:
44 | 25 0.11
Rain
Actual:
62 | 42 1.63
Average:
45 | 25 0.17
Rain
Actual:
57 | 35 0.04
Average:
43 | 24 0.16
Clear
Actual:
39 | 27 0.00
Average:
42 | 24 0.18
Clear
Actual:
45 | 25 0.00
Average:
44 | 24 0.12
Clear
Actual:
48 | 23 0.00
Average:
43 | 23 0.13
Clear
Actual:
42 | 25 0.00
Average:
43 | 24 0.23
Snow
Actual:
39 | 30 0.21
Average:
43 | 24 0.15
Rain
Actual:
46 | 39 0.37
Average:
44 | 24 0.30
Rain
Actual:
54 | 44 0.27
Average:
41 | 21 0.11
Overcast
Actual:
46 | 39 0.00
Average:
38 | 19 0.12
Rain
Actual:
41 | 33 0.00
Average:
38 | 20 0.07
Rain
Actual:
55 | 37 0.57
Average:
39 | 22 0.12
Partly Cloudy
Actual:
39 | 30 0.00
Average:
41 | 21 0.22
Scattered Clouds
Actual:
39 | 26 0.00
Average:
39 | 22 0.19
Scattered Clouds
Actual:
39 | 24 0.00
Average:
39 | 19 0.10
Snow
Actual:
35 | 28 0.04
Average:
39 | 18 0.13
Rain
Actual:
39 | 23 0.34
Average:
39 | 17 0.08
Snow
Actual:
52 | 32 0.59
Average:
36 | 17 0.24
Partly Cloudy
Actual:
37 | 26 0.00
Average:
37 | 18 0.05
Snow
Actual:
39 | 24 0.90
Average:
41 | 21 0.21
Snow
Actual:
30 | 23 0.01
Average:
40 | 20 0.19
Partly Cloudy
Actual:
33 | 19 0.00
Average:
37 | 15 0.08
 

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 39 36 34 37 32 20 97 82 56 30.61 30.55 30.48 10 6 1 7 3 - 0.04 Rain , Snow
2 57 48 39 52 46 37 93 83 70 30.47 30.28 30.07 10 9 2 15 3 24 0.02  
3 60 47 32 48 41 30 93 78 47 30.30 30.14 30.05 10 9 3 16 9 - 0.00  
4 55 42 30 51 39 28 100 90 74 30.33 30.24 30.03 10 5 0 9 2 17 0.00 Fog , Rain
5 57 47 37 54 41 18 93 70 46 30.11 29.94 29.85 10 9 5 18 12 25 0.02 Rain
6 39 30 21 18 17 14 88 59 36 30.32 30.27 30.13 10 10 10 18 8 23 0.00  
7 46 34 21 42 33 17 93 83 66 30.31 30.17 30.06 10 10 5 7 1 - 0.05 Rain
8 50 47 44 48 44 43 100 93 87 30.04 29.94 29.84 10 4 0 7 2 - 0.27 Fog , Rain
9 50 44 37 45 38 30 100 87 48 30.28 30.13 29.96 10 5 0 14 4 - 0.06 Fog , Rain
10 62 52 42 59 55 39 94 92 87 30.14 29.73 29.51 10 5 1 18 10 26 1.63 Rain
11 57 46 35 55 38 21 94 74 50 30.14 29.82 29.55 10 10 6 10 6 - 0.04 Rain
12 39 33 27 24 21 19 85 65 45 30.43 30.33 30.17 10 10 10 9 4 - 0.00  
13 45 35 25 27 24 21 89 74 42 30.47 30.39 30.31 10 10 9 4 0 - 0.00  
14 48 36 23 30 23 20 88 64 39 30.28 30.18 30.06 10 10 8 16 4 24 0.00  
15 42 34 25 26 23 21 88 71 47 30.33 30.28 30.18 10 10 6 10 3 16 0.00  
16 39 34 30 37 29 23 93 77 60 30.32 30.20 30.06 10 7 2 13 7 20 0.21 Rain , Snow
17 46 42 39 45 43 37 93 92 87 30.04 29.91 29.76 6 3 1 14 10 25 0.37 Rain
18 54 50 44 52 46 41 97 88 80 29.74 29.50 29.41 10 7 1 14 8 20 0.27 Rain
19 46 42 39 40 32 29 85 66 54 30.00 29.64 29.44 10 10 10 21 14 30 0.00  
20 41 37 33 36 32 28 93 81 68 30.19 30.13 30.02 10 10 6 12 6 - 0.00 Rain
21 55 46 37 52 41 29 94 85 67 30.04 29.50 29.14 10 8 1 26 11 41 0.57 Rain
22 39 34 30 32 23 15 82 61 46 29.65 29.42 29.26 10 10 10 21 12 31 0.00  
23 39 32 26 21 19 15 78 56 44 29.88 29.82 29.67 10 10 10 17 10 28 0.00  
24 39 32 24 25 20 16 81 64 43 30.07 30.02 29.89 10 10 10 10 4 - 0.00  
25 35 32 28 32 28 20 93 87 72 30.21 30.04 29.98 10 6 1 10 3 - 0.04 Rain , Snow
26 39 31 23 34 25 16 89 75 65 30.30 30.18 29.89 10 9 5 20 7 32 0.34 Rain
27 52 42 32 50 39 26 94 87 79 29.86 29.38 29.19 10 5 2 30 15 54 0.59 Rain , Snow
28 37 32 26 27 21 18 81 67 52 30.02 29.85 29.61 10 10 10 18 12 25 0.00  
29 39 32 24 36 28 20 93 84 70 30.02 29.66 29.31 10 7 0 18 6 32 0.90 Fog , Rain , Snow
30 30 26 23 28 20 9 93 74 55 29.97 29.62 29.36 10 9 1 20 15 32 0.01 Snow
31 33 26 19 24 17 9 78 68 60 30.06 29.96 29.80 10 10 10 15 9 22 0.00