Islip, NY
on Sunday, December 10, 2017

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Daily Summary
 ActualAverageRecord
Temperature
Mean Temperature °F °C 37°F 3°C  
Max Temperature 39°F 4°C 45°F 7°C 61°F 16°C (2015)
Min Temperature 30°F -1°C 30°F -1°C 6°F -14°C (1968)
Degree Days
Heating Degree Days 30 28  
Month to date heating degree days 236 262  
Since 1 July heating degree days 987 1278  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 972 787  
Moisture
Dew Point 27°F -3°C   
Average Humidity 76    
Maximum Humidity 96    
Minimum Humidity 56    
Precipitation
Precipitation T in / T cm 0.14 in / 3.56 cm 1.00 in / 2.54 cm (1994)
Month to date precipitation 0.85 1.40  
Year to date precipitation 42.17 43.58  
Snow
Snow T in / T cm 0.20 in / 0.51 cm in / cm ()
Month to date snowfall 1.3 1.1  
Since 1 July snowfall 1.3 1.6  
Snow Depth 1.00 in / 2.54 cm   
Wind
Wind Speed 10 mph / 15 km/h   
Max Wind Speed 16 mph / 26 km/h   
Max Gust Speed 22 mph / 35 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
12:43 AM 33.1°F 0.6°C 32.0°F 0.0°C 96% 29.68 in / 1005.0 hPa 8.0 miles / 12.9 kilometers NNW 6.9 mph / 11.1 km/h - 0.00 in / 0.0 cm   Overcast
12:56 AM 33.1°F 0.6°C 32.0°F 0.0°C 96% 29.69 in / 1005.2 hPa 10.0 miles / 16.1 kilometers NW 5.8 mph / 9.3 km/h - 0.00 in / 0.0 cm   Overcast
1:56 AM 33.1°F 0.6°C 32.0°F 0.0°C 96% 29.70 in / 1005.6 hPa 10.0 miles / 16.1 kilometers WNW 4.6 mph / 7.4 km/h - N/A   Overcast
2:08 AM 33.1°F 0.6°C 32.0°F 0.0°C 96% 29.70 in / 1005.6 hPa 10.0 miles / 16.1 kilometers West 5.8 mph / 9.3 km/h - N/A   Overcast
2:56 AM 33.1°F 0.6°C 30.9°F -0.6°C 92% 29.72 in / 1006.4 hPa 10.0 miles / 16.1 kilometers West 8.1 mph / 13.0 km/h - N/A   Overcast
3:56 AM 32.0°F 0.0°C 30.9°F -0.6°C 96% 29.72 in / 1006.4 hPa 10.0 miles / 16.1 kilometers WNW 6.9 mph / 11.1 km/h - N/A   Overcast
4:56 AM 30.9°F -0.6°C 28.9°F -1.7°C 92% 29.75 in / 1007.2 hPa 10.0 miles / 16.1 kilometers West 9.2 mph / 14.8 km/h - N/A   Clear
5:56 AM 30.9°F -0.6°C 28.0°F -2.2°C 89% 29.78 in / 1008.2 hPa 10.0 miles / 16.1 kilometers West 6.9 mph / 11.1 km/h - N/A   Mostly Cloudy
6:56 AM 30.0°F -1.1°C 27.0°F -2.8°C 88% 29.81 in / 1009.4 hPa 10.0 miles / 16.1 kilometers West 6.9 mph / 11.1 km/h - N/A   Mostly Cloudy
7:56 AM 30.0°F -1.1°C 26.1°F -3.3°C 85% 29.85 in / 1010.6 hPa 10.0 miles / 16.1 kilometers West 6.9 mph / 11.1 km/h - N/A   Mostly Cloudy
8:56 AM 30.9°F -0.6°C 25.0°F -3.9°C 79% 29.88 in / 1011.7 hPa 10.0 miles / 16.1 kilometers West 11.5 mph / 18.5 km/h - N/A   Scattered Clouds
9:56 AM 33.1°F 0.6°C 25.0°F -3.9°C 72% 29.90 in / 1012.5 hPa 10.0 miles / 16.1 kilometers West 10.4 mph / 16.7 km/h - N/A   Partly Cloudy
10:56 AM 34.0°F 1.1°C 25.0°F -3.9°C 70% 29.90 in / 1012.5 hPa 10.0 miles / 16.1 kilometers West 12.7 mph / 20.4 km/h - N/A   Clear
11:56 AM 36.0°F 2.2°C 26.1°F -3.3°C 67% 29.89 in / 1012.0 hPa 10.0 miles / 16.1 kilometers West 10.4 mph / 16.7 km/h - N/A   Clear
12:56 PM 37.0°F 2.8°C 26.1°F -3.3°C 65% 29.89 in / 1012.1 hPa 10.0 miles / 16.1 kilometers WNW 15.0 mph / 24.1 km/h - N/A   Partly Cloudy
1:56 PM 37.9°F 3.3°C 25.0°F -3.9°C 60% 29.90 in / 1012.3 hPa 10.0 miles / 16.1 kilometers West 16.1 mph / 25.9 km/h - N/A   Scattered Clouds
2:56 PM 37.9°F 3.3°C 25.0°F -3.9°C 60% 29.91 in / 1012.9 hPa 10.0 miles / 16.1 kilometers West 13.8 mph / 22.2 km/h - N/A   Scattered Clouds
3:56 PM 37.0°F 2.8°C 25.0°F -3.9°C 62% 29.94 in / 1013.6 hPa 10.0 miles / 16.1 kilometers West 8.1 mph / 13.0 km/h - N/A   Scattered Clouds
4:56 PM 35.1°F 1.7°C 25.0°F -3.9°C 67% 29.96 in / 1014.3 hPa 10.0 miles / 16.1 kilometers WSW 8.1 mph / 13.0 km/h - N/A   Scattered Clouds
5:56 PM 35.1°F 1.7°C 25.0°F -3.9°C 67% 29.98 in / 1015.0 hPa 10.0 miles / 16.1 kilometers SW 10.4 mph / 16.7 km/h - N/A   Partly Cloudy
6:56 PM 35.1°F 1.7°C 24.1°F -4.4°C 64% 29.99 in / 1015.4 hPa 10.0 miles / 16.1 kilometers WSW 12.7 mph / 20.4 km/h - N/A   Partly Cloudy
7:56 PM 35.1°F 1.7°C 21.9°F -5.6°C 59% 30.01 in / 1016.0 hPa 10.0 miles / 16.1 kilometers WSW 10.4 mph / 16.7 km/h - N/A   Mostly Cloudy
8:56 PM 35.1°F 1.7°C 21.9°F -5.6°C 59% 30.01 in / 1016.0 hPa 10.0 miles / 16.1 kilometers WSW 8.1 mph / 13.0 km/h - N/A   Mostly Cloudy
9:56 PM 35.1°F 1.7°C 24.1°F -4.4°C 64% 30.01 in / 1016.1 hPa 10.0 miles / 16.1 kilometers WSW 9.2 mph / 14.8 km/h - N/A   Mostly Cloudy
10:56 PM 35.1°F 1.7°C 24.1°F -4.4°C 64% 30.01 in / 1016.2 hPa 10.0 miles / 16.1 kilometers WSW 9.2 mph / 14.8 km/h - N/A   Overcast
11:56 PM 36.0°F 2.2°C 23.0°F -5.0°C 59% 30.01 in / 1016.3 hPa 10.0 miles / 16.1 kilometers West 10.4 mph / 16.7 km/h - N/A   Overcast