Weather History for Boston, MA

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Month of July, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 97 °F 83 °F 71 °F
Mean Temperature 87 °F 76 °F 68 °F
Min Temperature 76 °F 67 °F 61 °F
Degree Days  
Heating Degree Days (base 65) 0 0 0 0
Cooling Degree Days (base 65) 22 11 3 329
Growing Degree Days (base 50) 36 25 17 785
Dew Point  
Dew Point 73 °F 61 °F 42 °F
Precipitation  
Precipitation 1.74 in 0.15 in 0.00 in 3.88 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 29 mph 9 mph 0 mph
Gust Wind 36 mph 22 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.19 in 29.92 in 29.51 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Jul. 13, 2012 Rise Set
Actual Time 5:19 AM EDT 8:19 PM EDT
Civil Twilight 4:45 AM EDT 8:53 PM EDT
Nautical Twilight 4:02 AM EDT 9:36 PM EDT
Astronomical Twilight 3:11 AM EDT 10:26 PM EDT
Moon 12:56 AM EDT (7/13) 3:45 PM EDT (7/13)
Length of Visible Light 16h 08m
Length of Day
15h 00m
Waning Crescent, 26% of the Moon is Illuminated
Jul 13
Waning Crescent
Jul 19
New
Jul 26
First Quarter
Aug 1
Full
Aug 9
Last Quarter

Weather History Calendar

Precipitation Actual month total 3.88 Normal Month Total: 3.43
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Partly Cloudy
Actual:
91 | 70 0.00
Average:
80 | 64 0.09
Partly Cloudy
Actual:
84 | 69 0.00
Average:
80 | 64 0.09
Partly Cloudy
Actual:
86 | 68 0.00
Average:
81 | 64 0.09
Thunderstorm
Actual:
84 | 68 0.14
Average:
81 | 64 0.09
Partly Cloudy
Actual:
83 | 70 0.00
Average:
81 | 65 0.09
Scattered Clouds
Actual:
80 | 68 0.00
Average:
81 | 65 0.09
Rain
Actual:
86 | 73 T
Average:
81 | 65 0.10
Partly Cloudy
Actual:
89 | 71 0.00
Average:
81 | 65 0.09
Partly Cloudy
Actual:
84 | 67 0.00
Average:
81 | 65 0.10
Scattered Clouds
Actual:
83 | 65 0.00
Average:
81 | 65 0.11
Partly Cloudy
Actual:
80 | 66 0.00
Average:
82 | 65 0.11
Scattered Clouds
Actual:
86 | 63 0.00
Average:
82 | 65 0.11
Partly Cloudy
Actual:
90 | 69 0.00
Average:
82 | 66 0.11
Partly Cloudy
Actual:
91 | 72 0.00
Average:
82 | 66 0.12
Rain
Actual:
91 | 72 T
Average:
82 | 66 0.12
Partly Cloudy
Actual:
88 | 72 T
Average:
82 | 66 0.11
Scattered Clouds
Actual:
97 | 76 0.00
Average:
82 | 66 0.12
Thunderstorm
Actual:
89 | 70 1.74
Average:
82 | 66 0.12
Rain
Actual:
74 | 66 0.06
Average:
82 | 66 0.12
Partly Cloudy
Actual:
71 | 64 0.00
Average:
82 | 66 0.11
Scattered Clouds
Actual:
74 | 61 0.00
Average:
82 | 66 0.12
Scattered Clouds
Actual:
84 | 61 0.00
Average:
82 | 66 0.12
Rain
Actual:
86 | 66 0.02
Average:
82 | 66 0.12
Thunderstorm
Actual:
91 | 68 0.55
Average:
82 | 66 0.11
Partly Cloudy
Actual:
83 | 65 0.00
Average:
82 | 66 0.12
Rain
Actual:
84 | 66 T
Average:
82 | 66 0.12
Rain
Actual:
79 | 64 0.02
Average:
82 | 66 0.12
Thunderstorm
Actual:
72 | 63 0.87
Average:
82 | 66 0.13
Rain
Actual:
73 | 64 T
Average:
82 | 66 0.12
Partly Cloudy
Actual:
81 | 63 0.00
Average:
82 | 66 0.13
Rain
Actual:
73 | 63 0.48
Average:
81 | 66 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
Jul high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 91 81 70 64 60 56 73 53 32 29.83 29.76 29.72 10 10 10 21 9 31 0.00  
2 84 77 69 61 59 55 68 55 42 29.87 29.85 29.81 10 10 10 21 8 25 0.00  
3 86 77 68 61 55 49 76 54 31 29.91 29.88 29.85 10 10 9 18 9 29 0.00  
4 84 76 68 70 67 60 90 73 55 29.85 29.75 29.67 10 8 4 21 8 28 0.14 Rain , Thunderstorm
5 83 77 70 70 63 59 79 63 47 29.86 29.75 29.65 10 10 9 20 9 25 0.00  
6 80 74 68 66 63 60 79 68 56 29.91 29.86 29.82 10 10 10 13 8 16 0.00  
7 86 80 73 68 65 63 73 64 54 29.82 29.77 29.71 10 10 10 17 10 24 T Rain
8 89 80 71 63 59 49 73 51 29 29.88 29.80 29.77 10 10 10 20 9 25 0.00  
9 84 76 67 59 49 42 70 47 24 29.98 29.92 29.88 10 10 10 16 8 24 0.00  
10 83 74 65 59 50 42 70 50 29 30.09 30.03 29.98 10 10 9 14 7 17 0.00  
11 80 73 66 65 59 52 81 59 36 30.19 30.15 30.09 10 10 10 15 8 18 0.00  
12 86 75 63 65 59 54 84 62 40 30.19 30.15 30.09 10 10 9 20 11 24 0.00  
13 90 80 69 67 60 55 66 53 40 30.19 30.15 30.13 10 10 9 23 11 26 0.00  
14 91 82 72 64 61 59 73 55 37 30.14 30.10 30.05 10 10 10 17 11 24 0.00  
15 91 82 72 71 66 63 79 60 41 30.09 30.00 29.88 10 10 9 17 9 26 T Rain
16 88 80 72 72 68 64 84 65 46 29.87 29.79 29.75 10 10 10 16 10 22 T  
17 97 87 76 68 65 62 74 54 34 29.78 29.71 29.65 10 10 9 29 12 36 0.00  
18 89 80 70 72 69 66 93 72 50 29.88 29.81 29.68 10 7 0 23 8 26 1.74 Rain , Thunderstorm
19 74 70 66 67 59 52 81 65 49 30.02 29.96 29.88 10 10 10 17 8 21 0.06 Rain
20 71 68 64 63 58 56 87 74 61 30.09 30.06 30.02 10 10 10 14 7 17 0.00  
21 74 68 61 60 57 55 84 69 53 30.13 30.10 30.06 10 10 10 13 7 15 0.00  
22 84 73 61 60 57 50 78 56 33 30.14 30.11 30.07 10 10 10 21 11 25 0.00  
23 86 76 66 70 65 60 87 69 51 30.10 29.96 29.77 10 10 7 21 11 28 0.02 Rain
24 91 80 68 70 67 56 87 69 50 29.76 29.62 29.51 10 8 0 26 10 32 0.55 Fog , Rain , Thunderstorm
25 83 74 65 59 53 49 70 51 31 29.81 29.77 29.70 10 10 10 21 11 28 0.00  
26 84 75 66 72 64 58 87 73 58 29.78 29.68 29.59 10 10 7 16 8 21 T Rain
27 79 72 64 73 65 62 93 83 73 29.91 29.76 29.59 10 8 2 14 6 20 0.02 Rain
28 72 68 63 66 64 60 100 90 79 30.01 29.97 29.91 10 6 0 14 7 18 0.87 Rain , Thunderstorm
29 73 69 64 65 63 59 93 81 68 30.07 30.00 29.94 10 9 2 18 9 22 T Rain
30 81 72 63 64 61 59 93 72 51 30.12 30.10 30.06 10 10 9 18 8 23 0.00  
31 73 68 63 66 63 61 93 83 73 30.12 30.07 29.89 10 9 3 16 9 21 0.48 Rain