Weather History for Boston, MA

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Month of May, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 94 °F 67 °F 52 °F
Mean Temperature 83 °F 59 °F 47 °F
Min Temperature 72 °F 50 °F 36 °F
Degree Days  
Heating Degree Days (base 65) 18 7 0 227
Cooling Degree Days (base 65) 18 1 0 38
Growing Degree Days (base 50) 32 9 0 278
Dew Point  
Dew Point 67 °F 47 °F 24 °F
Precipitation  
Precipitation 0.84 in 0.11 in 0.00 in 3.21 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 26 mph 10 mph 0 mph
Gust Wind 43 mph 23 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.53 in 30.06 in 29.57 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

May. 13, 2013 Rise Set
Actual Time 5:24 AM EDT 7:56 PM EDT
Civil Twilight 4:52 AM EDT 8:29 PM EDT
Nautical Twilight 4:12 AM EDT 9:09 PM EDT
Astronomical Twilight 3:27 AM EDT 9:54 PM EDT
Moon 8:07 AM EDT (5/13) 11:04 PM EDT (5/13)
Length of Visible Light 15h 36m
Length of Day
14h 32m
Waxing Crescent, 12% of the Moon is Illuminated
May 13
Waxing Crescent
May 18
First Quarter
May 25
Full
May 31
Last Quarter
Jun 8
New

Weather History Calendar

Precipitation Actual month total 3.21 Normal Month Total: 3.49
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Scattered Clouds
Actual:
60 | 45 0.00
Average:
61 | 46 0.10
Rain
Actual:
70 | 36 T
Average:
62 | 46 0.11
Scattered Clouds
Actual:
53 | 44 0.00
Average:
62 | 46 0.11
Scattered Clouds
Actual:
52 | 44 0.00
Average:
62 | 46 0.10
Scattered Clouds
Actual:
53 | 40 0.00
Average:
63 | 47 0.12
Partly Cloudy
Actual:
55 | 43 0.00
Average:
63 | 47 0.11
Scattered Clouds
Actual:
72 | 47 0.00
Average:
63 | 47 0.10
Rain
Actual:
66 | 53 0.37
Average:
64 | 48 0.10
Thunderstorm
Actual:
63 | 53 0.61
Average:
64 | 48 0.10
Rain
Actual:
69 | 56 0.06
Average:
64 | 48 0.10
Rain
Actual:
72 | 59 0.02
Average:
64 | 48 0.11
Rain
Actual:
73 | 51 0.04
Average:
65 | 49 0.10
Partly Cloudy
Actual:
60 | 46 0.00
Average:
65 | 49 0.10
Partly Cloudy
Actual:
60 | 44 T
Average:
65 | 49 0.10
Rain
Actual:
67 | 44 T
Average:
66 | 50 0.10
Scattered Clouds
Actual:
82 | 53 0.00
Average:
66 | 50 0.11
Scattered Clouds
Actual:
70 | 54 0.00
Average:
66 | 50 0.10
Partly Cloudy
Actual:
67 | 51 0.00
Average:
67 | 50 0.11
Rain
Actual:
63 | 50 0.17
Average:
67 | 51 0.11
Rain
Actual:
82 | 56 0.03
Average:
67 | 51 0.12
Rain
Actual:
66 | 52 0.01
Average:
68 | 51 0.11
Rain
Actual:
60 | 51 0.05
Average:
68 | 52 0.12
Rain
Actual:
77 | 53 0.05
Average:
68 | 52 0.13
Rain
Actual:
70 | 51 0.57
Average:
69 | 52 0.13
Rain
Actual:
54 | 42 0.34
Average:
69 | 53 0.13
Rain
Actual:
60 | 41 0.05
Average:
69 | 53 0.13
Scattered Clouds
Actual:
73 | 47 0.00
Average:
70 | 53 0.13
Partly Cloudy
Actual:
64 | 51 0.00
Average:
70 | 54 0.12
Thunderstorm
Actual:
70 | 57 0.84
Average:
70 | 54 0.13
Scattered Clouds
Actual:
88 | 65 0.00
Average:
71 | 54 0.13
Scattered Clouds
Actual:
94 | 72 0.00
Average:
71 | 55 0.12
 

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

2013 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
May high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 60 53 45 45 38 30 77 57 36 30.50 30.46 30.39 10 10 10 15 6 17 0.00  
2 70 53 36 47 41 37 82 58 33 30.50 30.44 30.39 10 10 10 25 9 29 T Rain
3 53 49 44 45 40 34 80 70 60 30.53 30.47 30.38 10 10 10 20 10 24 0.00  
4 52 48 44 43 39 37 82 71 59 30.38 30.36 30.34 10 10 10 16 9 21 0.00  
5 53 47 40 42 40 37 89 76 63 30.34 30.31 30.28 10 10 7 15 9 17 0.00  
6 55 49 43 49 45 42 100 89 77 30.31 30.24 30.17 10 7 0 15 7 17 0.00  
7 72 60 47 56 51 45 93 75 56 30.19 30.16 30.11 10 10 10 18 9 22 0.00  
8 66 60 53 57 54 52 100 89 78 30.23 30.17 30.07 10 6 0 22 11 26 0.37 Fog , Rain
9 63 58 53 59 55 53 100 94 87 30.07 29.97 29.90 10 4 0 14 5 15 0.61 Fog , Rain , Thunderstorm
10 69 63 56 59 56 53 100 82 63 29.96 29.93 29.90 10 7 0 16 7 20 0.06 Rain
11 72 66 59 61 58 53 90 78 66 29.91 29.78 29.71 10 10 7 20 12 43 0.02 Rain
12 73 62 51 59 51 26 97 65 32 29.81 29.65 29.57 10 9 6 25 11 33 0.04 Rain
13 60 53 46 31 27 24 53 40 27 30.03 29.94 29.84 10 10 10 21 12 31 0.00  
14 60 52 44 32 28 24 58 43 28 30.05 30.02 29.98 10 10 10 16 11 24 T  
15 67 56 44 52 39 30 86 59 32 30.06 29.91 29.69 10 10 10 25 11 31 T Rain
16 82 68 53 51 39 29 93 56 18 29.81 29.68 29.62 10 10 9 25 13 36 0.00  
17 70 62 54 47 41 37 66 49 31 30.22 30.03 29.83 10 10 10 22 12 30 0.00  
18 67 59 51 51 45 41 77 61 44 30.32 30.27 30.23 10 10 10 20 10 23 0.00  
19 63 57 50 54 50 45 93 78 62 30.36 30.31 30.24 10 9 1 20 8 24 0.17 Rain
20 82 69 56 61 58 54 100 76 51 30.24 30.03 29.92 10 9 3 14 7 22 0.03 Rain
21 66 59 52 59 55 50 100 89 78 30.02 29.96 29.90 10 4 0 22 10 26 0.01 Fog , Rain
22 60 56 51 54 52 48 100 90 80 30.06 29.95 29.91 10 8 1 18 8 22 0.05 Rain
23 77 65 53 67 59 53 100 85 69 29.93 29.88 29.82 10 5 0 26 10 32 0.05 Fog , Rain
24 70 61 51 65 60 48 93 86 78 29.82 29.74 29.67 10 8 2 18 10 25 0.57 Rain
25 54 48 42 52 46 37 96 89 82 29.82 29.75 29.70 10 6 2 24 14 31 0.34 Rain
26 60 51 41 39 37 35 86 63 39 30.10 29.86 29.72 10 10 10 26 16 38 0.05 Rain
27 73 60 47 44 36 31 76 49 22 30.18 30.11 30.07 10 10 10 22 10 26 0.00  
28 64 58 51 52 47 39 77 62 46 30.25 30.21 30.17 10 10 10 15 7 18 0.00  
29 70 64 57 63 58 54 100 88 76 30.20 30.09 30.00 10 7 2 18 6 25 0.84 Rain , Thunderstorm
30 88 77 65 65 63 62 87 65 43 30.08 30.04 30.00 10 10 10 20 11 28 0.00  
31 94 83 72 65 63 60 73 53 33 30.09 30.02 29.93 10 10 7 21 11 26 0.00