Boston, MA

8:28 AM EST on November 23, 2017 (GMT -0500)
Logan International

Weather History for KBOS - May, 2013

Change the Weather History Date:

Friday, May 17, 2013

  Actual Average Record
Temperature  
Mean Temperature 62 °F 58 °F  
Max Temperature 70 °F 66 °F 92 °F (1977)
Min Temperature 54 °F 50 °F 39 °F (1882)
Degree Days  
Heating Degree Days 3 8  
Month to date heating degree days 144 165  
Since 1 July heating degree days 5260 5546  
Cooling Degree Days 0 1  
Month to date cooling degree days 4 4  
Year to date cooling degree days 4 7  
Growing Degree Days 12 (Base 50)    
Moisture  
Dew Point 41 °F    
Average Humidity 49    
Maximum Humidity 66    
Minimum Humidity 31    
Precipitation  
Precipitation 0.00 in 0.10 in 1.88 in (1916)
Month to date precipitation 1.10 1.77  
Year to date precipitation 12.13 16.44  
Sea Level Pressure  
Sea Level Pressure 30.03 in    
Wind  
Wind Speed 12 mph (North)    
Max Wind Speed 22 mph    
Max Gust Speed 30 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

Search for Another Location

Airport or City:

Trip Planner

Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!

Date:

Astronomy

May. 17, 2013 Rise Set
Actual Time 5:20 AM EDT 8:01 PM EDT
Civil Twilight 4:47 AM EDT 8:33 PM EDT
Nautical Twilight 4:07 AM EDT 9:14 PM EDT
Astronomical Twilight 3:21 AM EDT 10:01 PM EDT
Moon 11:53 AM EDT (5/17) 12:49 AM EDT (5/17)
Length of Visible Light 15h 45m
Length of Day
14h 40m
Waxing Crescent, 45% of the Moon is Illuminated
May 17
Waxing Crescent
May 18
First Quarter
May 25
Full
May 31
Last Quarter
Jun 8
New

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 63.0 °F 39.9 °F 43% 29.83 in 10.0 mi North 13.8 mph - N/A   Clear
1:54 AM 60.1 °F 41.0 °F 49% 29.85 in 10.0 mi NNW 8.1 mph - N/A   Clear
2:54 AM 57.9 °F 39.0 °F 49% 29.86 in 10.0 mi NNW 9.2 mph - N/A   Clear
3:54 AM 57.0 °F 39.9 °F 53% 29.87 in 10.0 mi NNW 11.5 mph - N/A   Clear
4:54 AM 55.9 °F 39.9 °F 55% 29.90 in 10.0 mi NW 12.7 mph - N/A   Clear
5:54 AM 55.0 °F 39.0 °F 55% 29.92 in 10.0 mi NW 11.5 mph 20.7 mph N/A   Clear
6:54 AM 55.0 °F 39.0 °F 55% 29.96 in 10.0 mi NW 15.0 mph 21.9 mph N/A   Partly Cloudy
7:54 AM 55.9 °F 37.0 °F 49% 29.98 in 10.0 mi NNW 15.0 mph 24.2 mph N/A   Scattered Clouds
8:54 AM 57.9 °F 37.9 °F 47% 30.00 in 10.0 mi NNW 12.7 mph 20.7 mph N/A   Scattered Clouds
9:54 AM 61.0 °F 37.9 °F 42% 29.99 in 10.0 mi North 13.8 mph - N/A   Scattered Clouds
10:54 AM 63.0 °F 39.0 °F 41% 30.02 in 10.0 mi NW 11.5 mph 17.3 mph N/A   Scattered Clouds
11:54 AM 63.0 °F 39.0 °F 41% 30.02 in 10.0 mi NNW 12.7 mph 19.6 mph N/A   Scattered Clouds
12:54 PM 63.0 °F 39.0 °F 41% 30.03 in 10.0 mi North 15.0 mph 24.2 mph N/A   Mostly Cloudy
1:54 PM 66.0 °F 39.0 °F 37% 30.04 in 10.0 mi NW 12.7 mph 20.7 mph N/A   Mostly Cloudy
2:54 PM 66.9 °F 39.0 °F 36% 30.06 in 10.0 mi North 13.8 mph 19.6 mph N/A   Mostly Cloudy
3:54 PM 69.1 °F 37.9 °F 32% 30.05 in 10.0 mi North 15.0 mph 23.0 mph N/A   Scattered Clouds
4:26 PM 60.8 °F 44.6 °F 55% 30.07 in 10.0 mi ESE 12.7 mph - N/A   Clear
4:54 PM 60.1 °F 46.9 °F 62% 30.08 in 10.0 mi ESE 13.8 mph - N/A   Partly Cloudy
5:54 PM 60.1 °F 45.0 °F 57% 30.10 in 10.0 mi ESE 10.4 mph - N/A   Scattered Clouds
6:54 PM 57.0 °F 45.0 °F 64% 30.12 in 10.0 mi ESE 12.7 mph - N/A   Scattered Clouds
7:54 PM 55.9 °F 43.0 °F 62% 30.15 in 10.0 mi East 10.4 mph - N/A   Scattered Clouds
8:54 PM 55.9 °F 44.1 °F 64% 30.18 in 10.0 mi ESE 10.4 mph - N/A   Mostly Cloudy
9:54 PM 55.0 °F 45.0 °F 69% 30.20 in 10.0 mi South 6.9 mph - N/A   Scattered Clouds
10:54 PM 55.0 °F 44.1 °F 67% 30.22 in 10.0 mi SSW 8.1 mph - N/A   Clear
11:54 PM 55.0 °F 43.0 °F 64% 30.22 in 10.0 mi SW 8.1 mph - N/A   Clear