Weather History for Cape Cod CGAS, MA

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Month of December, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 62 °F 46 °F 33 °F
Mean Temperature 53 °F 39 °F 28 °F
Min Temperature 44 °F 31 °F 19 °F
Degree Days  
Heating Degree Days (base 65) 37 26 12 817
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 3 0 0 3
Dew Point  
Dew Point 61 °F 33 °F 12 °F
Precipitation  
Precipitation 0.98 in 0.11 in 0.00 in 3.44 in
Snowdepth - - - -
Wind  
Wind 38 mph 10 mph 0 mph
Gust Wind 56 mph 22 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.60 in 29.98 in 29.17 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 09, 2012 Rise Set
Actual Time 6:57 AM EST 4:11 PM EST
Civil Twilight 6:26 AM EST 4:42 PM EST
Nautical Twilight 5:51 AM EST 5:17 PM EST
Astronomical Twilight 5:17 AM EST 5:51 PM EST
Moon 2:24 AM EST (12/9) 1:18 PM EST (12/9)
Length of Visible Light 10h 16m
Length of Day
9h 14m
Waning Crescent, 19% of the Moon is Illuminated
Dec 9
Waning Crescent
Dec 13
New
Dec 20
First Quarter
Dec 28
Full
Jan 4
Last Quarter

Weather History Calendar

Precipitation Actual month total 3.44 Average Month Total: 4.50
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Snow
Actual:
44 | 32 0.04
Average:
45 | 29 0.11
Rain
Actual:
57 | 44 0.00
Average:
44 | 29 0.10
Fog
Actual:
59 | 32 0.00
Average:
44 | 28 0.13
Rain
Actual:
53 | 30 0.00
Average:
44 | 28 0.13
Rain
Actual:
57 | 35 0.01
Average:
43 | 28 0.24
Clear
Actual:
38 | 19 0.00
Average:
43 | 28 0.24
Rain
Actual:
48 | 19 0.04
Average:
43 | 28 0.12
Rain
Actual:
55 | 44 0.20
Average:
43 | 28 0.06
Rain
Actual:
49 | 41 0.20
Average:
43 | 28 0.14
Thunderstorm
Actual:
62 | 44 0.20
Average:
43 | 28 0.17
Rain
Actual:
55 | 33 0.02
Average:
43 | 27 0.11
Clear
Actual:
39 | 26 0.00
Average:
43 | 27 0.28
Clear
Actual:
44 | 23 0.00
Average:
42 | 27 0.16
Clear
Actual:
46 | 23 0.00
Average:
42 | 27 0.08
Clear
Actual:
43 | 28 0.00
Average:
42 | 27 0.22
Rain
Actual:
41 | 30 0.12
Average:
42 | 26 0.16
Rain
Actual:
50 | 39 0.08
Average:
41 | 26 0.27
Thunderstorm
Actual:
53 | 44 0.08
Average:
41 | 26 0.08
Thunderstorm
Actual:
44 | 37 0.01
Average:
41 | 25 0.08
Rain
Actual:
43 | 32 0.01
Average:
40 | 25 0.06
Rain
Actual:
52 | 37 0.55
Average:
40 | 24 0.07
Rain
Actual:
41 | 30 0.00
Average:
39 | 24 0.25
Overcast
Actual:
39 | 30 0.00
Average:
39 | 24 0.14
Overcast
Actual:
39 | 24 0.01
Average:
39 | 23 0.14
Snow
Actual:
46 | 28 0.02
Average:
39 | 23 0.08
Rain
Actual:
40 | 21 0.43
Average:
39 | 23 0.15
Snow
Actual:
53 | 32 0.43
Average:
39 | 23 0.19
Clear
Actual:
36 | 26 0.00
Average:
39 | 23 0.03
Snow
Actual:
42 | 23 0.98
Average:
39 | 23 0.20
Snow
Actual:
33 | 23 0.01
Average:
38 | 23 0.18
Clear
Actual:
39 | 19 0.00
Average:
38 | 23 0.13
 

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 44 38 32 41 33 21 100 84 50 30.60 30.54 30.47 10 9 2 12 7 - 0.04 Rain , Snow
2 57 50 44 54 47 41 100 85 67 30.47 30.28 30.08 10 10 2 22 11 30 0.00 Rain
3 59 46 32 50 42 30 100 82 51 30.30 30.16 30.06 10 8 0 23 11 33 0.00 Fog
4 53 42 30 50 43 28 100 92 77 30.34 30.24 30.05 10 7 0 15 6 - 0.00 Fog , Rain
5 57 47 35 55 39 19 100 70 42 30.10 29.96 29.88 10 10 2 24 14 34 0.01 Rain
6 38 28 19 25 19 14 93 65 46 30.32 30.26 30.10 10 10 10 17 8 23 0.00  
7 48 34 19 47 35 18 100 87 62 30.31 30.18 30.06 10 9 5 14 3 21 0.04 Rain
8 55 50 44 55 48 45 100 98 93 30.06 29.94 29.83 10 4 0 18 5 22 0.20 Fog , Rain
9 49 45 41 48 40 32 100 85 61 30.28 30.18 29.98 10 7 0 15 8 21 0.20 Fog , Rain
10 62 53 44 61 55 41 100 97 87 30.13 29.76 29.52 10 4 0 26 16 39 0.20 Fog , Rain , Thunderstorm
11 55 45 33 54 39 23 100 78 54 30.15 29.85 29.57 10 9 0 14 9 21 0.02 Fog , Rain
12 39 32 26 28 22 18 93 65 42 30.43 30.32 30.15 10 10 10 13 7 17 0.00  
13 44 34 23 30 26 23 100 74 38 30.46 30.39 30.31 10 10 10 10 4 - 0.00  
14 46 34 23 36 28 21 100 75 51 30.30 30.18 30.08 10 10 10 21 6 28 0.00  
15 43 36 28 31 26 23 87 72 45 30.33 30.27 30.16 10 10 10 14 7 20 0.00  
16 41 36 30 40 29 23 100 79 54 30.32 30.20 30.02 10 8 2 20 9 23 0.12 Rain
17 50 44 39 49 44 37 100 97 90 30.02 29.90 29.74 10 4 1 17 11 25 0.08 Rain
18 53 48 44 54 47 41 100 96 87 29.73 29.51 29.43 10 6 0 16 10 22 0.08 Fog , Rain , Thunderstorm
19 44 40 37 41 33 30 93 71 58 29.99 29.65 29.43 10 10 10 23 14 34 0.01 Thunderstorm
20 43 38 32 36 32 28 93 82 65 30.19 30.11 30.00 10 9 3 18 7 21 0.01 Rain
21 52 44 37 50 41 32 100 87 66 30.03 29.47 29.17 10 8 1 32 15 47 0.55 Rain
22 41 36 30 36 25 16 87 65 41 29.65 29.42 29.27 10 10 5 25 16 37 0.00 Rain
23 39 34 30 30 21 16 75 57 37 29.89 29.82 29.66 10 10 10 24 16 31 0.00  
24 39 32 24 28 22 18 87 65 42 30.07 30.01 29.89 10 10 6 15 7 20 0.01  
25 46 37 28 44 33 25 100 93 80 30.20 30.03 29.95 10 8 2 17 7 20 0.02 Rain , Snow
26 40 30 21 37 27 19 93 79 57 30.29 30.18 29.86 10 9 3 24 9 37 0.43 Rain
27 53 42 32 51 41 27 100 92 80 29.86 29.39 29.20 10 6 1 38 20 56 0.43 Rain , Snow
28 36 31 26 28 23 19 87 72 50 30.02 29.87 29.59 10 10 8 20 13 30 0.00  
29 42 32 23 40 29 21 100 88 70 30.02 29.72 29.18 10 7 0 28 6 37 0.98 Rain , Snow
30 33 28 23 32 22 13 100 80 39 29.97 29.64 29.32 10 9 1 28 17 36 0.01 Rain , Snow
31 39 29 19 28 21 12 86 74 42 30.07 29.96 29.80 10 10 10 21 13 30 0.00