Weather History for Hyannis, MA

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Month of December, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 15 °C 8 °C 1 °C
Mean Temperature 11 °C 4 °C -2 °C
Min Temperature 8 °C 0 °C -6 °C
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 15 °C 1 °C -12 °C
Precipitation  
Precipitation 42.4 mm 4.9 mm 0.0 mm 150.86 mm
Snowdepth - - - -
Wind  
Wind 42 km/h 13 km/h 0 km/h
Gust Wind 72 km/h 35 km/h 26 km/h
Sea Level Pressure  
Sea Level Pressure 1036 hPa 1015 hPa 986 hPa

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 31, 2012 Rise Set
Actual Time 7:08 AM EST 4:20 PM EST
Civil Twilight 6:36 AM EST 4:52 PM EST
Nautical Twilight 6:01 AM EST 5:27 PM EST
Astronomical Twilight 5:28 AM EST 6:00 PM EST
Moon 7:51 PM EST (12/31) 8:45 AM EST (12/31)
Length of Visible Light 10h 15m
Length of Day
9h 12m
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 150.86 Average Month Total: 11.3
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Rain
Actual:
8 | 1 1.02
Average:
7 | -1 0.18
Rain
Actual:
13 | 8 1.27
Average:
7 | -1 0.23
Partly Cloudy
Actual:
15 | 1 0.00
Average:
8 | -3 0.43
Rain
Actual:
12 | -1 0.00
Average:
8 | -2 0.33
Rain
Actual:
13 | 3 0.25
Average:
7 | -2 0.51
Partly Cloudy
Actual:
3 | -6 0.00
Average:
6 | -3 0.71
Rain
Actual:
8 | -6 0.25
Average:
8 | -3 0.30
Rain
Actual:
13 | 7 10.67
Average:
7 | -2 0.25
Rain
Actual:
9 | 6 1.52
Average:
7 | -3 0.25
Rain
Actual:
15 | 8 42.42
Average:
7 | -3 0.38
Rain
Actual:
13 | 2 0.25
Average:
7 | -2 0.28
Scattered Clouds
Actual:
4 | -3 0.00
Average:
6 | -3 0.58
Scattered Clouds
Actual:
7 | -4 0.00
Average:
6 | -3 0.25
Clear
Actual:
8 | -4 0.00
Average:
7 | -2 0.28
Scattered Clouds
Actual:
6 | -3 0.00
Average:
6 | -4 0.43
Rain
Actual:
4 | -1 6.60
Average:
7 | -3 0.38
Rain
Actual:
9 | 6 5.84
Average:
7 | -2 0.71
Rain
Actual:
11 | 7 6.60
Average:
5 | -4 0.18
Rain
Actual:
7 | 4 0.51
Average:
5 | -6 0.18
Rain
Actual:
6 | 2 1.02
Average:
4 | -5 0.33
Rain
Actual:
12 | 5 12.95
Average:
5 | -4 0.20
Rain
Actual:
4 | -1 0.00
Average:
5 | -4 0.71
Scattered Clouds
Actual:
4 | -3 0.00
Average:
5 | -4 0.28
Scattered Clouds
Actual:
4 | -3 0.00
Average:
4 | -4 0.33
Rain
Actual:
5 | 1 3.81
Average:
5 | -6 0.25
Rain
Actual:
4 | 1 7.11
Average:
5 | -6 0.36
Rain
Actual:
11 | 1 11.94
Average:
4 | -7 0.48
Partly Cloudy
Actual:
4 | -2 0.00
Average:
3 | -6 0.10
Snow
Actual:
4 | -3 34.54
Average:
5 | -4 0.51
Snow
Actual:
1 | -5 2.29
Average:
4 | -5 0.41
Scattered Clouds
Actual:
2 | -6 0.00
Average:
3 | -6 0.43
 

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. (°C) Dew Point (°C) Humidity (%) Sea Level Press. (hPa) Visibility (km) Wind (km/h) Precip. (mm) Events
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 8 4 1 6 2 -5 93 82 64 1036 1034 1031 16 16 11 14 8 - 1.02 Rain
2 13 10 8 11 9 7 97 91 83 1031 1025 1019 16 16 16 29 13 42 1.27 Rain
3 15 8 1 10 6 -1 96 83 57 1025 1021 1017 16 15 10 34 18 45 0.00  
4 12 6 -1 10 3 -1 100 95 80 1027 1025 1017 16 7 0 23 2 27 0.00 Fog , Rain
5 13 8 3 12 6 -6 100 77 53 1018 1013 1011 16 14 8 29 16 42 0.25 Rain
6 3 -2 -6 -4 -6 -8 92 68 54 1026 1024 1019 16 16 16 26 16 39 0.00  
7 8 1 -6 8 2 -8 100 89 73 1026 1022 1017 16 16 16 16 3 27 0.25 Rain
8 13 10 7 13 9 7 100 98 93 1017 1013 1010 16 9 0 21 5 26 10.67 Fog , Rain
9 9 7 6 8 6 1 100 87 63 1025 1021 1014 16 14 8 26 11 39 1.52 Rain
10 15 11 8 15 12 6 100 99 89 1019 1007 999 16 4 1 26 18 42 42.42 Rain
11 13 8 2 13 6 -4 100 81 57 1020 1009 1001 16 11 2 23 10 35 0.25 Rain
12 4 1 -3 -3 -4 -6 89 69 57 1030 1026 1021 16 16 16 24 10 34 0.00  
13 7 2 -4 -1 -3 -6 96 79 56 1030 1029 1026 16 16 16 13 2 - 0.00  
14 8 2 -4 1 -2 -6 96 72 50 1025 1022 1018 16 16 14 29 6 37 0.00  
15 6 2 -3 -1 -3 -6 85 71 53 1027 1025 1022 16 16 16 21 8 27 0.00  
16 4 1 -1 4 -1 -5 97 80 65 1026 1022 1016 16 13 5 23 10 35 6.60 Rain
17 9 7 6 9 7 5 100 96 93 1015 1012 1006 11 6 4 19 13 39 5.84 Rain
18 11 9 7 11 9 6 100 98 89 1006 999 996 16 8 1 24 13 29 6.60 Rain
19 7 6 4 6 2 1 90 79 68 1014 1004 996 16 16 11 35 23 55 0.51 Rain
20 6 4 2 4 1 -1 97 82 68 1021 1019 1014 16 16 16 24 16 39 1.02 Rain
21 12 8 5 11 7 -1 100 88 67 1016 996 986 16 11 1 39 18 61 12.95 Rain
22 4 1 -1 1 -3 -9 87 67 44 1004 995 991 16 16 16 34 19 47 0.00 Rain
23 4 0 -3 -4 -6 -9 82 60 45 1012 1010 1004 16 16 16 27 16 48 0.00  
24 4 1 -3 -2 -5 -6 82 67 49 1018 1016 1012 16 16 16 16 8 26 0.00  
25 5 3 1 4 2 -1 100 92 79 1022 1016 1014 16 14 5 24 10 35 3.81 Rain
26 4 2 1 2 -2 -4 93 73 61 1025 1021 1011 16 15 8 26 16 47 7.11 Rain
27 11 6 1 11 6 -1 100 93 87 1016 998 990 16 10 4 42 24 72 11.94 Rain
28 4 1 -2 -2 -5 -7 82 69 53 1016 1013 1008 16 16 16 32 21 48 0.00  
29 4 1 -3 4 -1 -6 100 90 70 1016 1000 989 16 9 1 39 13 60 34.54 Fog , Rain , Snow
30 1 -2 -5 1 -4 -12 100 80 60 1013 1001 990 16 14 2 42 27 66 2.29 Snow
31 2 -2 -6 -2 -7 -12 79 70 60 1017 1014 1008 16 16 16 26 18 39 0.00