Weather History for Hyannis, MA

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Month of December, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 59 °F 46 °F 34 °F
Mean Temperature 52 °F 39 °F 28 °F
Min Temperature 46 °F 32 °F 21 °F
Degree Days  
Heating Degree Days (base 65) 37 26 12 801
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 2 0 0 2
Dew Point  
Dew Point 59 °F 34 °F 11 °F
Precipitation  
Precipitation 1.67 in 0.19 in 0.00 in 5.94 in
Snowdepth - - - -
Wind  
Wind 26 mph 8 mph 0 mph
Gust Wind 45 mph 22 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.59 in 29.96 in 29.13 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 11, 2012 Rise Set
Actual Time 6:58 AM EST 4:10 PM EST
Civil Twilight 6:26 AM EST 4:42 PM EST
Nautical Twilight 5:52 AM EST 5:17 PM EST
Astronomical Twilight 5:18 AM EST 5:50 PM EST
Moon 4:48 AM EST (12/11) 2:47 PM EST (12/11)
Length of Visible Light 10h 15m
Length of Day
9h 12m
Waning Crescent, 4% of the Moon is Illuminated
Dec 11
Waning Crescent
Dec 13
New
Dec 20
First Quarter
Dec 28
Full
Jan 4
Last Quarter

Weather History Calendar

Precipitation Actual month total 5.94 Average Month Total: 4.43
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Rain
Actual:
46 | 33 0.04
Average:
44 | 31 0.07
Rain
Actual:
55 | 46 0.05
Average:
45 | 31 0.09
Partly Cloudy
Actual:
59 | 33 0.00
Average:
47 | 26 0.17
Rain
Actual:
54 | 30 0.00
Average:
46 | 29 0.13
Rain
Actual:
55 | 37 0.01
Average:
44 | 28 0.20
Partly Cloudy
Actual:
37 | 21 0.00
Average:
42 | 26 0.28
Rain
Actual:
46 | 21 0.01
Average:
46 | 27 0.12
Rain
Actual:
55 | 44 0.42
Average:
44 | 28 0.10
Rain
Actual:
48 | 42 0.06
Average:
44 | 27 0.10
Rain
Actual:
59 | 46 1.67
Average:
45 | 27 0.15
Rain
Actual:
55 | 36 0.01
Average:
44 | 29 0.11
Scattered Clouds
Actual:
39 | 27 0.00
Average:
42 | 27 0.23
Scattered Clouds
Actual:
45 | 24 0.00
Average:
43 | 26 0.10
Clear
Actual:
46 | 24 0.00
Average:
44 | 28 0.11
Scattered Clouds
Actual:
43 | 27 0.00
Average:
43 | 25 0.17
Rain
Actual:
39 | 30 0.26
Average:
44 | 26 0.15
Rain
Actual:
48 | 42 0.23
Average:
44 | 28 0.28
Rain
Actual:
52 | 44 0.26
Average:
41 | 25 0.07
Rain
Actual:
45 | 39 0.02
Average:
41 | 22 0.07
Rain
Actual:
43 | 35 0.04
Average:
39 | 23 0.13
Rain
Actual:
53 | 41 0.51
Average:
41 | 24 0.08
Rain
Actual:
39 | 30 0.00
Average:
41 | 25 0.28
Scattered Clouds
Actual:
39 | 26 0.00
Average:
41 | 24 0.11
Scattered Clouds
Actual:
39 | 27 0.00
Average:
40 | 24 0.13
Rain
Actual:
41 | 33 0.15
Average:
41 | 22 0.10
Rain
Actual:
39 | 34 0.28
Average:
41 | 22 0.14
Rain
Actual:
51 | 33 0.47
Average:
39 | 20 0.19
Partly Cloudy
Actual:
39 | 28 0.00
Average:
38 | 21 0.04
Snow
Actual:
39 | 27 1.36
Average:
41 | 24 0.20
Snow
Actual:
34 | 23 0.09
Average:
40 | 23 0.16
Scattered Clouds
Actual:
35 | 21 0.00
Average:
38 | 21 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 46 40 33 43 35 23 93 82 64 30.59 30.53 30.46 10 10 7 9 5 - 0.04 Rain
2 55 50 46 52 48 44 97 91 83 30.44 30.28 30.08 10 10 10 18 8 26 0.05 Rain
3 59 46 33 50 43 30 96 83 57 30.28 30.14 30.04 10 10 6 21 11 28 0.00  
4 54 42 30 50 37 30 100 95 80 30.34 30.26 30.04 10 4 0 14 1 17 0.00 Fog , Rain
5 55 47 37 54 42 22 100 77 53 30.07 29.93 29.87 10 8 5 18 10 26 0.01 Rain
6 37 29 21 25 22 18 92 68 54 30.31 30.25 30.09 10 10 10 16 10 24 0.00  
7 46 34 21 46 36 18 100 89 73 30.30 30.17 30.05 10 10 10 10 2 17 0.01 Rain
8 55 50 44 55 48 45 100 98 93 30.04 29.92 29.82 10 5 0 13 3 16 0.42 Fog , Rain
9 48 45 42 46 42 34 100 87 63 30.26 30.14 29.96 10 8 5 16 7 24 0.06 Rain
10 59 52 46 59 53 43 100 99 89 30.09 29.73 29.51 10 3 1 16 11 26 1.67 Rain
11 55 46 36 56 42 24 100 81 57 30.13 29.80 29.55 10 7 1 14 6 22 0.01 Rain
12 39 33 27 27 24 21 89 69 57 30.42 30.31 30.15 10 10 10 15 6 21 0.00  
13 45 35 24 31 27 22 96 79 56 30.43 30.38 30.30 10 10 10 8 1 - 0.00  
14 46 35 24 34 28 22 96 72 50 30.28 30.17 30.06 10 10 9 18 4 23 0.00  
15 43 35 27 30 27 22 85 71 53 30.32 30.26 30.17 10 10 10 13 5 17 0.00  
16 39 34 30 39 30 23 97 80 65 30.30 30.19 30.02 10 8 3 14 6 22 0.26 Rain
17 48 45 42 48 45 41 100 96 93 29.99 29.88 29.72 7 4 2 12 8 24 0.23 Rain
18 52 48 44 52 48 42 100 98 89 29.71 29.49 29.41 10 5 1 15 8 18 0.26 Rain
19 45 42 39 42 36 33 90 79 68 29.96 29.65 29.42 10 10 7 22 14 34 0.02 Rain
20 43 39 35 39 34 30 97 82 68 30.16 30.09 29.96 10 10 10 15 10 24 0.04 Rain
21 53 47 41 52 44 31 100 88 67 30.01 29.43 29.13 10 7 1 24 11 38 0.51 Rain
22 39 34 30 34 26 16 87 67 44 29.64 29.40 29.27 10 10 10 21 12 29 0.00 Rain
23 39 32 26 25 21 16 82 60 45 29.88 29.82 29.66 10 10 10 17 10 30 0.00  
24 39 33 27 28 23 21 82 67 49 30.06 30.01 29.89 10 10 10 10 5 16 0.00  
25 41 37 33 40 35 30 100 92 79 30.18 30.01 29.94 10 9 3 15 6 22 0.15 Rain
26 39 36 34 36 29 25 93 73 61 30.27 30.16 29.85 10 9 5 16 10 29 0.28 Rain
27 51 42 33 52 42 30 100 93 87 30.01 29.48 29.25 10 6 2 26 15 45 0.47 Rain
28 39 34 28 29 23 20 82 69 53 30.00 29.91 29.76 10 10 10 20 13 30 0.00  
29 39 33 27 39 31 22 100 90 70 30.01 29.54 29.20 10 6 0 24 8 37 1.36 Fog , Rain , Snow
30 34 29 23 34 24 11 100 80 60 29.92 29.56 29.25 10 9 1 26 17 41 0.09 Snow
31 35 28 21 29 20 11 79 70 60 30.05 29.95 29.78 10 10 10 16 11 24 0.00