Weather History for Boston, MA

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Month of December, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 60 °F 44 °F 30 °F
Mean Temperature 51 °F 39 °F 26 °F
Min Temperature 43 °F 33 °F 21 °F
Degree Days  
Heating Degree Days (base 65) 39 26 14 817
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 57 °F 30 °F 7 °F
Precipitation  
Precipitation 1.67 in 0.24 in 0.00 in 5.89 in
Snowdepth 9.0 in 0.8 in 0.0 in -
Wind  
Wind 45 mph 11 mph 0 mph
Gust Wind 54 mph 25 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.64 in 29.99 in 29.10 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 03, 2012 Rise Set
Actual Time 6:56 AM EST 4:11 PM EST
Civil Twilight 6:24 AM EST 4:43 PM EST
Nautical Twilight 5:49 AM EST 5:18 PM EST
Astronomical Twilight 5:15 AM EST 5:52 PM EST
Moon 8:58 PM EST (12/3) 10:14 AM EST (12/3)
Length of Visible Light 10h 18m
Length of Day
9h 15m
Waning Gibbous, 78% of the Moon is Illuminated
Dec 3
Waning Gibbous
Dec 6
Last Quarter
Dec 13
New
Dec 20
First Quarter
Dec 28
Full

Weather History Calendar

Precipitation Actual month total 5.89 Normal Month Total: 3.78
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Snow
Actual:
32 | 28 0.03
Average:
46 | 33 0.13
Rain
Actual:
52 | 32 T
Average:
46 | 33 0.13
Partly Cloudy
Actual:
59 | 41 0.00
Average:
46 | 33 0.13
Rain
Actual:
57 | 39 0.01
Average:
45 | 32 0.14
Rain
Actual:
57 | 33 T
Average:
45 | 32 0.13
Scattered Clouds
Actual:
41 | 30 0.00
Average:
44 | 32 0.13
Rain
Actual:
44 | 30 0.03
Average:
44 | 31 0.14
Rain
Actual:
47 | 43 0.34
Average:
44 | 31 0.12
Rain
Actual:
49 | 41 0.08
Average:
43 | 31 0.13
Rain
Actual:
60 | 42 0.56
Average:
43 | 30 0.13
Rain
Actual:
56 | 34 T
Average:
43 | 30 0.13
Partly Cloudy
Actual:
40 | 31 0.00
Average:
42 | 29 0.12
Scattered Clouds
Actual:
42 | 29 0.00
Average:
42 | 29 0.12
Scattered Clouds
Actual:
49 | 31 0.00
Average:
42 | 29 0.12
Partly Cloudy
Actual:
40 | 33 0.00
Average:
41 | 28 0.13
Snow
Actual:
39 | 34 0.25
Average:
41 | 28 0.12
Rain
Actual:
45 | 37 0.48
Average:
41 | 28 0.12
Rain
Actual:
50 | 41 0.86
Average:
40 | 27 0.12
Rain
Actual:
45 | 38 T
Average:
40 | 27 0.12
Rain
Actual:
43 | 33 T
Average:
40 | 27 0.11
Rain
Actual:
52 | 38 0.65
Average:
39 | 26 0.13
Partly Cloudy
Actual:
38 | 30 0.00
Average:
39 | 26 0.11
Partly Cloudy
Actual:
38 | 29 0.00
Average:
39 | 26 0.12
Partly Cloudy
Actual:
40 | 31 0.00
Average:
39 | 26 0.12
Snow
Actual:
35 | 28 0.01
Average:
38 | 25 0.13
Snow
Actual:
39 | 23 0.23
Average:
38 | 25 0.11
Snow
Actual:
47 | 30 1.67
Average:
38 | 25 0.11
Partly Cloudy
Actual:
37 | 28 0.00
Average:
38 | 24 0.11
Snow
Actual:
37 | 29 0.69
Average:
37 | 24 0.11
Snow
Actual:
30 | 22 T
Average:
37 | 24 0.11
Partly Cloudy
Actual:
34 | 21 0.00
Average:
37 | 24 0.10
 

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 32 30 28 29 23 13 92 69 45 30.64 30.58 30.51 10 6 1 13 7 21 0.03 Snow
2 52 42 32 46 36 28 96 84 71 30.49 30.29 30.04 10 6 2 21 6 28 T Rain
3 59 50 41 46 41 36 86 69 51 30.30 30.14 30.02 10 9 6 23 10 30 0.00  
4 57 48 39 54 44 35 96 86 76 30.33 30.23 29.98 10 7 0 22 7 33 0.01 Fog , Rain
5 57 45 33 54 38 14 93 68 43 30.15 29.94 29.83 10 10 10 26 16 35 T Rain
6 41 36 30 18 16 14 54 46 37 30.32 30.27 30.16 10 10 10 22 9 30 0.00  
7 44 37 30 40 31 19 89 74 58 30.31 30.17 30.04 10 10 7 10 5 14 0.03 Rain
8 47 45 43 44 42 41 100 93 86 30.04 29.96 29.87 9 4 0 13 5 17 0.34 Rain
9 49 45 41 44 35 28 93 73 53 30.30 30.19 29.97 10 10 6 16 9 20 0.08 Rain
10 60 51 42 57 49 39 100 95 89 30.15 29.78 29.50 10 6 2 21 8 25 0.56 Rain
11 56 45 34 54 35 21 93 71 49 30.15 29.83 29.53 10 10 9 21 11 26 T Rain
12 40 36 31 23 20 18 63 54 44 30.43 30.33 30.17 10 10 10 13 9 18 0.00  
13 42 36 29 27 25 21 70 61 51 30.48 30.40 30.30 10 10 10 6 4 7 0.00  
14 49 40 31 26 23 18 69 49 29 30.27 30.17 30.04 10 10 10 20 11 24 0.00  
15 40 37 33 27 24 21 70 59 48 30.34 30.28 30.18 10 10 10 21 9 26 0.00  
16 39 37 34 36 30 22 92 77 61 30.33 30.20 30.09 10 6 2 21 14 26 0.25 Rain , Snow
17 45 41 37 45 41 37 100 96 92 30.08 29.97 29.80 5 2 0 22 14 26 0.48 Rain
18 50 46 41 49 45 37 100 95 89 29.78 29.50 29.39 10 4 0 18 11 25 0.86 Fog , Rain
19 45 42 38 38 32 28 89 71 53 30.03 29.66 29.44 10 10 9 25 16 37 T Rain
20 43 38 33 35 30 28 76 67 57 30.21 30.13 30.04 10 10 10 14 9 17 T Rain
21 52 45 38 52 41 32 100 88 76 30.02 29.46 29.10 10 7 2 39 21 49 0.65 Rain
22 38 34 30 31 22 13 82 63 43 29.64 29.40 29.24 10 10 10 28 16 37 0.00  
23 38 34 29 22 18 13 56 48 40 29.87 29.80 29.66 10 10 10 23 13 30 0.00  
24 40 36 31 22 18 15 61 49 37 30.06 30.01 29.88 10 10 10 18 8 25 0.00  
25 35 32 28 27 24 16 78 65 51 30.23 30.07 29.99 10 9 2 14 8 20 0.01 Snow
26 39 31 23 34 22 12 85 69 53 30.32 30.21 29.93 10 9 4 36 14 44 0.23 Rain , Snow
27 47 39 30 45 37 27 96 91 85 29.88 29.46 29.22 10 4 1 45 24 54 1.67 Rain , Snow
28 37 33 28 25 21 17 78 65 52 30.01 29.88 29.64 10 10 10 24 14 35 0.00  
29 37 33 29 34 27 22 92 78 63 30.01 29.71 29.39 10 6 0 30 10 37 0.69 Fog , Rain , Snow
30 30 26 22 27 17 7 92 69 46 29.97 29.66 29.42 10 8 1 30 19 40 T Snow
31 34 28 21 22 17 7 69 61 52 30.04 29.93 29.77 10 10 10 24 14 30 0.00