Islip, NY
on Friday, December 8, 2017

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Daily Summary
 ActualAverageRecord
Temperature
Mean Temperature °F °C 38°F 3°C  
Max Temperature 40°F 4°C 45°F 7°C 62°F 16°C (1980)
Min Temperature 32°F 0°C 31°F -1°C 15°F -9°C (1970)
Degree Days
Heating Degree Days 29 27  
Month to date heating degree days 176 207  
Since 1 July heating degree days 927 1223  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 972 787  
Moisture
Dew Point 20°F -7°C   
Average Humidity 53    
Maximum Humidity 69    
Minimum Humidity 37    
Precipitation
Precipitation 0.00 in / 0.00 cm 0.14 in / 3.56 cm 1.58 in / 4.01 cm (1974)
Month to date precipitation 0.54 1.12  
Year to date precipitation 41.86 43.30  
Snow
Snow 0.00 in / 0.00 cm 0.10 in / 0.25 cm in / cm ()
Month to date snowfall 0.0 0.8  
Since 1 July snowfall T 1.3  
Snow Depth 0.00 in / 0.00 cm   
Wind
Wind Speed 6 mph / 9 km/h   
Max Wind Speed 10 mph / 16 km/h   
Max Gust Speed 15 mph / 24 km/h   
Visibility 10 miles / 16 kilometers   
Events     

Key: T is trace of precipitation, MM is missing value
Source: NWS Daily Summary
Time(EST)TemperatureDew PointHumidity Pressure Visibility Wind DirectionWind SpeedGust SpeedPrecipitationEvents Conditions
12:56 AM 37.0°F 2.8°C 25.0°F -3.9°C 62% 30.01 in / 1016.3 hPa 10.0 miles / 16.1 kilometers West 6.9 mph / 11.1 km/h - N/A   Partly Cloudy
1:56 AM 37.0°F 2.8°C 24.1°F -4.4°C 59% 30.03 in / 1016.9 hPa 10.0 miles / 16.1 kilometers West 6.9 mph / 11.1 km/h - N/A   Clear
2:56 AM 34.0°F 1.1°C 24.1°F -4.4°C 67% 30.04 in / 1017.2 hPa 10.0 miles / 16.1 kilometers West 6.9 mph / 11.1 km/h - N/A   Clear
3:56 AM 35.1°F 1.7°C 21.9°F -5.6°C 59% 30.04 in / 1017.2 hPa 10.0 miles / 16.1 kilometers WNW 8.1 mph / 13.0 km/h - N/A   Clear
4:56 AM 33.1°F 0.6°C 21.9°F -5.6°C 64% 30.06 in / 1017.9 hPa 10.0 miles / 16.1 kilometers WSW 3.5 mph / 5.6 km/h - N/A   Clear
5:56 AM 34.0°F 1.1°C 21.0°F -6.1°C 59% 30.06 in / 1017.9 hPa 10.0 miles / 16.1 kilometers West 4.6 mph / 7.4 km/h - N/A   Mostly Cloudy
6:56 AM 34.0°F 1.1°C 21.0°F -6.1°C 59% 30.06 in / 1017.7 hPa 10.0 miles / 16.1 kilometers West 3.5 mph / 5.6 km/h - N/A   Overcast
7:56 AM 35.1°F 1.7°C 19.9°F -6.7°C 54% 30.08 in / 1018.6 hPa 10.0 miles / 16.1 kilometers West 4.6 mph / 7.4 km/h - N/A   Overcast
8:56 AM 36.0°F 2.2°C 19.9°F -6.7°C 52% 30.08 in / 1018.4 hPa 10.0 miles / 16.1 kilometers WNW 5.8 mph / 9.3 km/h - N/A   Overcast
9:56 AM 37.9°F 3.3°C 19.0°F -7.2°C 47% 30.09 in / 1018.8 hPa 10.0 miles / 16.1 kilometers WNW 5.8 mph / 9.3 km/h - N/A   Overcast
10:56 AM 37.9°F 3.3°C 17.1°F -8.3°C 43% 30.06 in / 1018.0 hPa 10.0 miles / 16.1 kilometers WSW 4.6 mph / 7.4 km/h - N/A   Overcast
11:56 AM 39.0°F 3.9°C 17.1°F -8.3°C 41% 30.05 in / 1017.5 hPa 10.0 miles / 16.1 kilometers SW 6.9 mph / 11.1 km/h - N/A   Overcast
12:56 PM 39.9°F 4.4°C 17.1°F -8.3°C 40% 30.04 in / 1017.3 hPa 10.0 miles / 16.1 kilometers West 6.9 mph / 11.1 km/h - N/A   Overcast
1:56 PM 39.9°F 4.4°C 17.1°F -8.3°C 40% 30.04 in / 1017.1 hPa 10.0 miles / 16.1 kilometers WNW 6.9 mph / 11.1 km/h - N/A   Overcast
2:56 PM 39.0°F 3.9°C 16.0°F -8.9°C 39% 30.02 in / 1016.4 hPa 10.0 miles / 16.1 kilometers SW 4.6 mph / 7.4 km/h - N/A   Overcast
3:56 PM 37.9°F 3.3°C 19.0°F -7.2°C 47% 30.03 in / 1016.8 hPa 10.0 miles / 16.1 kilometers WSW 5.8 mph / 9.3 km/h - N/A   Overcast
4:56 PM 37.9°F 3.3°C 19.9°F -6.7°C 48% 30.02 in / 1016.6 hPa 10.0 miles / 16.1 kilometers SW 5.8 mph / 9.3 km/h - N/A   Overcast
5:56 PM 37.9°F 3.3°C 21.0°F -6.1°C 51% 30.03 in / 1016.8 hPa 10.0 miles / 16.1 kilometers WSW 6.9 mph / 11.1 km/h - N/A   Overcast
6:56 PM 37.9°F 3.3°C 21.0°F -6.1°C 51% 30.00 in / 1015.8 hPa 10.0 miles / 16.1 kilometers West 8.1 mph / 13.0 km/h - N/A   Overcast
7:56 PM 37.0°F 2.8°C 19.0°F -7.2°C 48% 29.98 in / 1015.2 hPa 10.0 miles / 16.1 kilometers West 5.8 mph / 9.3 km/h - N/A   Overcast
8:56 PM 37.0°F 2.8°C 16.0°F -8.9°C 42% 29.97 in / 1014.9 hPa 10.0 miles / 16.1 kilometers WNW 4.6 mph / 7.4 km/h - N/A   Overcast
9:56 PM 37.0°F 2.8°C 17.1°F -8.3°C 44% 29.98 in / 1015.1 hPa 10.0 miles / 16.1 kilometers West 3.5 mph / 5.6 km/h - N/A   Overcast
10:56 PM 37.0°F 2.8°C 18.0°F -7.8°C 46% 29.98 in / 1015.1 hPa 10.0 miles / 16.1 kilometers West 4.6 mph / 7.4 km/h - N/A   Overcast
11:56 PM 36.0°F 2.2°C 17.1°F -8.3°C 46% 29.95 in / 1014.1 hPa 10.0 miles / 16.1 kilometers NW 4.6 mph / 7.4 km/h - N/A   Overcast