Winthrop, MA

4:46 AM EST on December 06, 2016 (GMT -0500)
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Weather History for KBOS - September, 2013

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Wednesday, September 4, 2013

  Actual Average Record
Temperature  
Mean Temperature 73 °F 69 °F  
Max Temperature 82 °F 76 °F 94 °F (1973)
Min Temperature 63 °F 61 °F 43 °F (1872)
Degree Days  
Heating Degree Days 0 1  
Month to date heating degree days 0 4  
Since 1 July heating degree days 2 17  
Cooling Degree Days 8 5  
Month to date cooling degree days 37 20  
Year to date cooling degree days 858 679  
Growing Degree Days 22 (Base 50)    
Moisture  
Dew Point 54 °F    
Average Humidity 57    
Maximum Humidity 78    
Minimum Humidity 36    
Precipitation  
Precipitation 0.00 in 0.10 in 1.73 in (1905)
Month to date precipitation 0.76 0.40  
Year to date precipitation 30.96 29.02  
Sea Level Pressure  
Sea Level Pressure 29.86 in    
Wind  
Wind Speed 11 mph (West)    
Max Wind Speed 18 mph    
Max Gust Speed 25 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Date:

Astronomy

Sep. 04, 2013 Rise Set
Actual Time 6:12 AM EDT 7:12 PM EDT
Civil Twilight 5:43 AM EDT 7:41 PM EDT
Nautical Twilight 5:09 AM EDT 8:15 PM EDT
Astronomical Twilight 4:33 AM EDT 8:50 PM EDT
Moon 5:21 AM EDT (9/4) 6:29 PM EDT (9/4)
Length of Visible Light 13h 57m
Length of Day
12h 59m
Waning Crescent, 1% of the Moon is Illuminated
Sep 4
Waning Crescent
Sep 5
New
Sep 12
First Quarter
Sep 19
Full
Sep 26
Last 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 66.9 °F - 55.9 °F 68% 29.80 in 10.0 mi WNW 11.5 mph - N/A   Mostly Cloudy
1:54 AM 66.0 °F - 55.0 °F 68% 29.81 in 10.0 mi WNW 10.4 mph - N/A   Scattered Clouds
2:54 AM 64.9 °F - 55.0 °F 70% 29.81 in 10.0 mi WNW 13.8 mph - N/A   Clear
3:54 AM 64.0 °F - 55.0 °F 73% 29.82 in 10.0 mi West 9.2 mph - N/A   Clear
4:54 AM 64.0 °F - 55.0 °F 73% 29.83 in 10.0 mi West 9.2 mph - N/A   Partly Cloudy
5:54 AM 63.0 °F - 55.0 °F 75% 29.85 in 10.0 mi WNW 12.7 mph - N/A   Partly Cloudy
6:54 AM 63.0 °F - 55.0 °F 75% 29.87 in 10.0 mi West 11.5 mph - N/A   Partly Cloudy
7:54 AM 66.0 °F - 55.9 °F 70% 29.88 in 10.0 mi West 10.4 mph - N/A   Partly Cloudy
8:54 AM 70.0 °F - 55.9 °F 61% 29.89 in 10.0 mi WNW 11.5 mph 18.4 mph N/A   Partly Cloudy
9:54 AM 73.0 °F - 55.9 °F 55% 29.89 in 10.0 mi WNW 12.7 mph - N/A   Partly Cloudy
10:54 AM 75.9 °F - 55.0 °F 48% 29.88 in 10.0 mi WNW 10.4 mph - N/A   Scattered Clouds
11:54 AM 77.0 °F - 53.1 °F 43% 29.87 in 10.0 mi West 10.4 mph - N/A   Partly Cloudy
12:54 PM 79.0 °F - 52.0 °F 39% 29.87 in 10.0 mi WSW 16.1 mph 20.7 mph N/A   Partly Cloudy
1:54 PM 80.1 °F - 52.0 °F 38% 29.86 in 10.0 mi West 9.2 mph - N/A   Partly Cloudy
2:54 PM 81.0 °F - 52.0 °F 36% 29.86 in 10.0 mi West 13.8 mph - N/A   Partly Cloudy
3:54 PM 82.0 °F 81.3 °F 54.0 °F 38% 29.86 in 10.0 mi West 11.5 mph 19.6 mph N/A   Partly Cloudy
4:54 PM 81.0 °F - 52.0 °F 36% 29.85 in 10.0 mi West 10.4 mph 19.6 mph N/A   Partly Cloudy
5:54 PM 79.0 °F - 54.0 °F 42% 29.86 in 10.0 mi West 11.5 mph - N/A   Partly Cloudy
6:54 PM 78.1 °F - 53.1 °F 42% 29.86 in 10.0 mi West 11.5 mph 25.3 mph N/A   Partly Cloudy
7:54 PM 77.0 °F - 52.0 °F 42% 29.88 in 10.0 mi West 15.0 mph 21.9 mph N/A   Clear
8:54 PM 75.0 °F - 52.0 °F 44% 29.90 in 10.0 mi West 11.5 mph - N/A   Clear
9:54 PM 73.0 °F - 53.1 °F 49% 29.91 in 10.0 mi West 8.1 mph - N/A   Clear
10:54 PM 72.0 °F - 52.0 °F 49% 29.92 in 10.0 mi West 6.9 mph - N/A   Clear
11:54 PM 68.0 °F - 54.0 °F 61% 29.91 in 10.0 mi SW 6.9 mph - N/A   Clear