Islip, NY
on Saturday, December 9, 2017

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Daily Summary
 ActualAverageRecord
Temperature
Mean Temperature °F °C 38°F 3°C  
Max Temperature 38°F 3°C 45°F 7°C 66°F 18°C (1991)
Min Temperature 32°F 0°C 30°F -1°C 8°F -13°C (1968)
Degree Days
Heating Degree Days 30 27  
Month to date heating degree days 206 234  
Since 1 July heating degree days 957 1250  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 972 787  
Moisture
Dew Point 28°F -2°C   
Average Humidity 74    
Maximum Humidity 100    
Minimum Humidity 47    
Precipitation
Precipitation 0.31 in / 7.87 cm 0.14 in / 3.56 cm 2.14 in / 5.44 cm (2014)
Month to date precipitation 0.85 1.26  
Year to date precipitation 42.17 43.44  
Snow
Snow 0.00 in / 0.00 cm 0.10 in / 0.25 cm 0.50 in / 1.27 cm (1986)
Month to date snowfall 0.0 0.9  
Since 1 July snowfall T 1.4  
Snow Depth 0.00 in / 0.00 cm   
Wind
Wind Speed 7 mph / 12 km/h   
Max Wind Speed 15 mph / 24 km/h   
Max Gust Speed 20 mph / 32 km/h   
Visibility 4 miles / 6 kilometers   
Events Fog , Snow   

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 36.0°F 2.2°C 18.0°F -7.8°C 48% 29.97 in / 1014.8 hPa 10.0 miles / 16.1 kilometers West 4.6 mph / 7.4 km/h - N/A   Overcast
1:56 AM 36.0°F 2.2°C 19.0°F -7.2°C 50% 29.96 in / 1014.4 hPa 10.0 miles / 16.1 kilometers Calm Calm - N/A   Overcast
2:56 AM 35.1°F 1.7°C 19.9°F -6.7°C 54% 29.96 in / 1014.5 hPa 10.0 miles / 16.1 kilometers West 3.5 mph / 5.6 km/h - N/A   Overcast
3:56 AM 36.0°F 2.2°C 19.9°F -6.7°C 52% 29.96 in / 1014.4 hPa 10.0 miles / 16.1 kilometers WNW 3.5 mph / 5.6 km/h - N/A   Overcast
4:56 AM 36.0°F 2.2°C 19.0°F -7.2°C 50% 29.96 in / 1014.4 hPa 10.0 miles / 16.1 kilometers NW 5.8 mph / 9.3 km/h - N/A   Overcast
5:56 AM 36.0°F 2.2°C 19.9°F -6.7°C 52% 29.94 in / 1013.6 hPa 10.0 miles / 16.1 kilometers Calm Calm - N/A   Overcast
6:56 AM 36.0°F 2.2°C 21.9°F -5.6°C 57% 29.94 in / 1013.7 hPa 10.0 miles / 16.1 kilometers North 4.6 mph / 7.4 km/h - N/A   Overcast
7:56 AM 37.0°F 2.8°C 21.9°F -5.6°C 54% 29.94 in / 1013.7 hPa 10.0 miles / 16.1 kilometers NNE 5.8 mph / 9.3 km/h - N/A   Overcast
8:56 AM 37.0°F 2.8°C 23.0°F -5.0°C 57% 29.91 in / 1012.8 hPa 10.0 miles / 16.1 kilometers NNE 8.1 mph / 13.0 km/h - N/A   Overcast
9:56 AM 36.0°F 2.2°C 27.0°F -2.8°C 70% 29.92 in / 1013.1 hPa 3.0 miles / 4.8 kilometers Variable 6.9 mph / 11.1 km/h - 0.00 in / 0.0 cm Snow Light Snow
10:10 AM 35.1°F 1.7°C 28.0°F -2.2°C 76% 29.92 in / 1013.1 hPa 1.0 miles / 1.6 kilometers North 10.4 mph / 16.7 km/h - 0.00 in / 0.0 cm Snow Light Snow
10:56 AM 34.0°F 1.1°C 30.9°F -0.6°C 89% 29.90 in / 1012.3 hPa 1.5 miles / 2.4 kilometers North 8.1 mph / 13.0 km/h - 0.01 in / 0.3 cm Snow Light Snow
11:40 AM 32.0°F 0.0°C 30.9°F -0.6°C 96% 29.87 in / 1011.4 hPa 1.0 miles / 1.6 kilometers North 8.1 mph / 13.0 km/h - 0.01 in / 0.3 cm Snow Light Snow
11:56 AM 32.0°F 0.0°C 30.9°F -0.6°C 96% 29.86 in / 1011.2 hPa 1.0 miles / 1.6 kilometers North 8.1 mph / 13.0 km/h - 0.02 in / 0.5 cm Snow Light Snow
12:08 PM 32.0°F 0.0°C 30.9°F -0.6°C 96% 29.84 in / 1010.4 hPa 0.5 miles / 0.8 kilometers NNE 6.9 mph / 11.1 km/h - 0.01 in / 0.3 cm Snow Light Snow
12:27 PM 32.0°F 0.0°C 30.9°F -0.6°C 96% 29.82 in / 1009.7 hPa 0.5 miles / 0.8 kilometers North 6.9 mph / 11.1 km/h - 0.03 in / 0.8 cm Fog , Snow Light Snow
12:52 PM 33.8°F 1.0°C 32.0°F 0.0°C 93% 29.81 in / 1009.4 hPa 0.5 miles / 0.8 kilometers North 8.1 mph / 13.0 km/h - 0.06 in / 1.5 cm Fog , Snow Snow
12:56 PM 33.1°F 0.6°C 32.0°F 0.0°C 96% 29.81 in / 1009.4 hPa 0.5 miles / 0.8 kilometers North 9.2 mph / 14.8 km/h - 0.07 in / 1.8 cm Fog , Snow Snow
1:52 PM 33.8°F 1.0°C 32.0°F 0.0°C 93% 29.77 in / 1008.0 hPa 1.0 miles / 1.6 kilometers North 9.2 mph / 14.8 km/h - 0.03 in / 0.8 cm Snow Light Snow
1:56 PM 33.1°F 0.6°C 32.0°F 0.0°C 96% 29.76 in / 1007.8 hPa 1.0 miles / 1.6 kilometers North 9.2 mph / 14.8 km/h - 0.03 in / 0.8 cm Snow Light Snow
2:56 PM 33.1°F 0.6°C 32.0°F 0.0°C 96% 29.74 in / 1007.1 hPa 1.0 miles / 1.6 kilometers NNE 11.5 mph / 18.5 km/h - 0.03 in / 0.8 cm Snow Light Snow
3:56 PM 33.1°F 0.6°C 32.0°F 0.0°C 96% 29.71 in / 1006.1 hPa 1.0 miles / 1.6 kilometers North 11.5 mph / 18.5 km/h - 0.02 in / 0.5 cm Snow Light Snow
3:59 PM 33.1°F 0.6°C 32.0°F 0.0°C 96% 29.71 in / 1006.0 hPa 3.0 miles / 4.8 kilometers North 11.5 mph / 18.5 km/h - 0.00 in / 0.0 cm Snow Light Snow
4:56 PM 33.1°F 0.6°C 32.0°F 0.0°C 96% 29.70 in / 1005.7 hPa 1.5 miles / 2.4 kilometers North 11.5 mph / 18.5 km/h - 0.02 in / 0.5 cm Snow Light Snow
5:56 PM 33.1°F 0.6°C 32.0°F 0.0°C 96% 29.69 in / 1005.2 hPa 1.5 miles / 2.4 kilometers North 11.5 mph / 18.5 km/h - 0.02 in / 0.5 cm Snow Light Snow
6:56 PM 33.1°F 0.6°C 32.0°F 0.0°C 96% 29.68 in / 1005.0 hPa 1.5 miles / 2.4 kilometers North 11.5 mph / 18.5 km/h - 0.03 in / 0.8 cm Snow Light Snow
7:56 PM 33.1°F 0.6°C 33.1°F 0.6°C 100% 29.69 in / 1005.3 hPa 1.5 miles / 2.4 kilometers North 5.8 mph / 9.3 km/h - 0.01 in / 0.3 cm Snow Light Snow
8:56 PM 33.1°F 0.6°C 32.0°F 0.0°C 96% 29.69 in / 1005.2 hPa 1.5 miles / 2.4 kilometers NNW 6.9 mph / 11.1 km/h - 0.02 in / 0.5 cm Snow Light Snow
9:56 PM 33.1°F 0.6°C 32.0°F 0.0°C 96% 29.69 in / 1005.2 hPa 1.5 miles / 2.4 kilometers NNW 10.4 mph / 16.7 km/h - 0.02 in / 0.5 cm Snow Light Snow
10:56 PM 33.1°F 0.6°C 32.0°F 0.0°C 96% 29.68 in / 1005.1 hPa 1.5 miles / 2.4 kilometers NNW 8.1 mph / 13.0 km/h - 0.01 in / 0.3 cm Snow Light Snow
11:56 PM 33.1°F 0.6°C 32.0°F 0.0°C 96% 29.69 in / 1005.3 hPa 3.0 miles / 4.8 kilometers NNW 8.1 mph / 13.0 km/h - 0.00 in / 0.0 cm Snow Light Snow