Weather History for Boston, MA

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Friday, July 19, 2013

  Actual Average Record
Temperature  
Mean Temperature 89 °F 74 °F  
Max Temperature 99 °F 82 °F 99 °F (2013)
Min Temperature 78 °F 66 °F 54 °F (1881)
Degree Days  
Heating Degree Days 0 0  
Month to date heating degree days 0 0  
Since 1 June heating degree days 25 55  
Since 1 July heating degree days 0 0  
Cooling Degree Days 24 9  
Month to date cooling degree days 278 160  
Year to date cooling degree days 487 326  
Since 1 June cooling degree days 449 296  
Growing Degree Days 37 (Base 50)    
Moisture  
Dew Point 72 °F    
Average Humidity 62    
Maximum Humidity 85    
Minimum Humidity 38    
Precipitation  
Precipitation 0.00 in 0.12 in 1.68 in (1882)
Month to date precipitation 0.23 1.98  
Year to date precipitation 24.98 23.82  
Sea Level Pressure  
Sea Level Pressure 29.82 in    
Wind  
Wind Speed 15 mph (SW)    
Max Wind Speed 26 mph    
Max Gust Speed 37 mph    
Visibility 9 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jul. 19, 2013 Rise Set
Actual Time 5:24 AM EDT 8:16 PM EDT
Civil Twilight 4:51 AM EDT 8:49 PM EDT
Nautical Twilight 4:09 AM EDT 9:30 PM EDT
Astronomical Twilight 3:20 AM EDT 10:19 PM EDT
Moon 5:15 PM EDT (7/19) 2:02 AM EDT (7/19)
Length of Visible Light 15h 58m
Length of Day
14h 51m
Waxing Gibbous, 86% of the Moon is Illuminated
Jul 19
Waxing Gibbous
Jul 22
Full
Jul 29
Last Quarter
Aug 6
New
Aug 14
First Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 79.0 °F - 73.0 °F 82% 29.93 in 10.0 mi SSW 3.5 mph - N/A   Scattered Clouds
1:54 AM 79.0 °F - 73.0 °F 82% 29.92 in 9.0 mi SW 5.8 mph - N/A   Clear
2:54 AM 79.0 °F - 73.0 °F 82% 29.91 in 9.0 mi SW 8.1 mph - N/A   Clear
3:54 AM 79.0 °F - 73.0 °F 82% 29.91 in 9.0 mi SW 6.9 mph - N/A   Clear
4:54 AM 79.0 °F - 73.0 °F 82% 29.89 in 10.0 mi SW 9.2 mph - N/A   Clear
5:54 AM 80.1 °F 84.2 °F 73.0 °F 79% 29.89 in 9.0 mi SW 11.5 mph - N/A   Clear
6:54 AM 82.9 °F 88.8 °F 73.0 °F 72% 29.88 in 10.0 mi WSW 9.2 mph - N/A   Clear
7:54 AM 84.9 °F 90.7 °F 72.0 °F 65% 29.88 in 10.0 mi SW 11.5 mph - N/A   Clear
8:54 AM 88.0 °F 94.7 °F 72.0 °F 59% 29.87 in 10.0 mi WSW 10.4 mph - N/A   Clear
9:54 AM 91.0 °F 97.6 °F 71.1 °F 52% 29.86 in 10.0 mi WSW 12.7 mph - N/A   Scattered Clouds
10:54 AM 93.9 °F 100.8 °F 71.1 °F 47% 29.85 in 10.0 mi WSW 15.0 mph - N/A   Scattered Clouds
11:54 AM 96.1 °F 102.9 °F 70.0 °F 43% 29.84 in 10.0 mi WSW 16.1 mph 24.2 mph N/A   Scattered Clouds
12:54 PM 98.1 °F 104.4 °F 69.1 °F 39% 29.81 in 10.0 mi WSW 19.6 mph 25.3 mph N/A   Scattered Clouds
1:54 PM 99.0 °F 104.2 °F 68.0 °F 36% 29.78 in 10.0 mi WSW 16.1 mph 28.8 mph N/A   Mostly Cloudy
2:54 PM 98.1 °F 104.4 °F 69.1 °F 39% 29.77 in 10.0 mi SW 25.3 mph 31.1 mph N/A   Scattered Clouds
3:54 PM 97.0 °F 104.8 °F 71.1 °F 43% 29.74 in 10.0 mi WSW 19.6 mph 28.8 mph N/A   Scattered Clouds
4:54 PM 97.0 °F 103.5 °F 70.0 °F 41% 29.72 in 10.0 mi WSW 23.0 mph 28.8 mph N/A   Scattered Clouds
5:54 PM 95.0 °F 102.5 °F 71.1 °F 46% 29.71 in 10.0 mi SW 20.7 mph 33.4 mph N/A   Scattered Clouds
6:54 PM 91.9 °F 100.7 °F 73.0 °F 54% 29.72 in 9.0 mi SW 21.9 mph 29.9 mph N/A   Scattered Clouds
7:54 PM 90.0 °F 100.2 °F 75.0 °F 61% 29.74 in 8.0 mi SW 18.4 mph 28.8 mph N/A   Partly Cloudy
8:54 PM 88.0 °F 98.5 °F 75.9 °F 67% 29.74 in 9.0 mi SW 18.4 mph 25.3 mph N/A   Partly Cloudy
9:54 PM 87.1 °F 96.3 °F 75.0 °F 67% 29.75 in 8.0 mi SW 15.0 mph 24.2 mph N/A   Clear
10:54 PM 86.0 °F 93.8 °F 73.9 °F 67% 29.75 in 8.0 mi SW 17.3 mph 24.2 mph N/A   Clear
11:54 PM 84.9 °F 92.1 °F 73.9 °F 69% 29.74 in 8.0 mi SW 15.0 mph - N/A   Clear