Weather History for Islip, NY

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Sunday, February 17, 2013

  Actual Average Record
Temperature  
Mean Temperature 24 °F 33 °F  
Max Temperature 31 °F 41 °F 57 °F (2006)
Min Temperature 17 °F 25 °F 9 °F (1994)
Degree Days  
Heating Degree Days 41 32  
Month to date heating degree days 593 563  
Since 1 July heating degree days 3290 3555  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 12 °F    
Average Humidity 56    
Maximum Humidity 81    
Minimum Humidity 31    
Precipitation  
Precipitation 0.10 in 0.11 in 0.62 in (1988)
Month to date precipitation 3.87 1.86  
Year to date precipitation 6.09 5.50  
Snow  
Snow 1.50 in 0.30 in 2.50 in (1996)
Month to date snowfall 31.2 4.2  
Since 1 July snowfall 39.3 16.8  
Snow Depth 7.00 in    
Sea Level Pressure  
Sea Level Pressure 29.67 in    
Wind  
Wind Speed 22 mph (NNW)    
Max Wind Speed 32 mph    
Max Gust Speed 47 mph    
Visibility 6 miles    
Events Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Feb. 17, 2013 Rise Set
Actual Time 6:43 AM EST 5:29 PM EST
Civil Twilight 6:15 AM EST 5:57 PM EST
Nautical Twilight 5:43 AM EST 6:29 PM EST
Astronomical Twilight 5:11 AM EST 7:01 PM EST
Moon 10:31 AM EST (2/17) 12:25 AM EST (2/17)
Length of Visible Light 11h 42m
Length of Day
10h 46m
Waxing Crescent, 49% of the Moon is Illuminated
Feb 17
Waxing Crescent
Feb 17
First Quarter
Feb 25
Full
Mar 4
Last Quarter
Mar 11
New

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:25 AM 28.4 °F 17.0 °F 21.2 °F 74% 29.68 in 3.0 mi NNW 15.0 mph - 0.00 in Snow Light Snow
12:36 AM 28.4 °F 16.2 °F 21.2 °F 74% 29.68 in 4.0 mi NNW 17.3 mph 23.0 mph 0.00 in Snow Light Snow
12:51 AM 28.4 °F 17.0 °F 21.2 °F 74% 29.67 in 2.5 mi North 15.0 mph - 0.00 in Snow Light Snow
12:56 AM 28.0 °F 17.0 °F 21.9 °F 78% 29.67 in 2.0 mi NNW 13.8 mph - 0.00 in Snow Light Snow
1:03 AM 28.4 °F 18.0 °F 21.2 °F 74% 29.66 in 1.2 mi North 12.7 mph - 0.00 in Snow Light Snow
1:12 AM 26.6 °F 14.7 °F 21.2 °F 80% 29.66 in 1.0 mi North 15.0 mph - 0.01 in Snow Light Snow
1:18 AM 26.6 °F 13.8 °F 21.2 °F 80% 29.65 in 0.8 mi North 17.3 mph 21.9 mph 0.01 in Snow Light Snow
1:35 AM 26.6 °F 15.2 °F 21.2 °F 80% 29.64 in 1.0 mi North 13.8 mph - 0.02 in Snow Light Snow
1:45 AM 26.6 °F 13.8 °F 21.2 °F 80% 29.64 in 1.0 mi NNW 17.3 mph 21.9 mph 0.02 in Snow Light Snow
1:56 AM 27.0 °F 16.1 °F 21.9 °F 81% 29.64 in 1.5 mi North 12.7 mph - 0.02 in Snow Light Snow
2:05 AM 26.6 °F 15.2 °F 21.2 °F 80% 29.64 in 2.0 mi North 13.8 mph - 0.00 in Snow Light Snow
2:53 AM 26.6 °F 15.2 °F 21.2 °F 80% 29.63 in 1.5 mi NNW 13.8 mph - 0.00 in Snow Light Snow
2:56 AM 26.1 °F 15.0 °F 21.9 °F 84% 29.62 in 1.5 mi NNW 12.7 mph - 0.00 in Snow Light Snow
3:56 AM 25.0 °F 12.2 °F 19.9 °F 81% 29.62 in 1.8 mi North 16.1 mph - 0.01 in Snow Light Snow
4:03 AM 24.8 °F 10.7 °F 19.4 °F 80% 29.61 in 2.5 mi North 19.6 mph 25.3 mph 0.00 in Snow Light Snow
4:12 AM 24.8 °F 12.4 °F 19.4 °F 80% 29.60 in 3.0 mi North 15.0 mph 24.2 mph 0.00 in Snow Light Snow
4:56 AM 27.0 °F 14.3 °F 14.0 °F 58% 29.60 in 10.0 mi NNW 17.3 mph 23.0 mph 0.00 in   Overcast
5:56 AM 24.1 °F 9.0 °F 10.9 °F 57% 29.58 in 10.0 mi NNW 21.9 mph 29.9 mph N/A   Overcast
6:56 AM 24.1 °F 7.4 °F 9.0 °F 53% 29.58 in 10.0 mi NNW 27.6 mph 34.5 mph N/A   Overcast
7:56 AM 24.1 °F 9.0 °F 8.1 °F 51% 29.60 in 10.0 mi NNW 21.9 mph 29.9 mph N/A   Overcast
8:56 AM 24.1 °F 9.4 °F 6.1 °F 46% 29.57 in 10.0 mi NW 20.7 mph 33.4 mph N/A   Mostly Cloudy
9:56 AM 25.0 °F 8.6 °F 5.0 °F 43% 29.59 in 10.0 mi NW 27.6 mph 36.8 mph N/A   Mostly Cloudy
10:56 AM 27.0 °F 11.9 °F 3.9 °F 37% 29.60 in 10.0 mi NW 25.3 mph 43.7 mph N/A   Mostly Cloudy
11:56 AM 28.9 °F 14.3 °F 3.9 °F 35% 29.60 in 10.0 mi NW 26.5 mph 39.1 mph N/A   Mostly Cloudy
12:56 PM 30.0 °F 15.2 °F 3.0 °F 32% 29.61 in 10.0 mi NW 28.8 mph 41.4 mph N/A   Mostly Cloudy
1:56 PM 30.0 °F 14.9 °F 3.9 °F 33% 29.62 in 10.0 mi WNW 29.9 mph 36.8 mph N/A   Mostly Cloudy
2:56 PM 30.0 °F 15.4 °F 3.9 °F 33% 29.64 in 10.0 mi WNW 27.6 mph 41.4 mph N/A   Mostly Cloudy
3:56 PM 28.9 °F 15.1 °F 3.0 °F 33% 29.67 in 10.0 mi NW 23.0 mph 35.7 mph N/A   Mostly Cloudy
4:56 PM 27.0 °F 11.3 °F 1.9 °F 34% 29.70 in 10.0 mi WNW 27.6 mph 38.0 mph N/A   Scattered Clouds
5:56 PM 25.0 °F 12.6 °F 3.0 °F 39% 29.75 in 10.0 mi WNW 15.0 mph 27.6 mph N/A   Scattered Clouds
6:56 PM 23.0 °F 7.2 °F 3.0 °F 42% 29.78 in 10.0 mi WNW 23.0 mph 36.8 mph N/A   Scattered Clouds
7:56 PM 21.0 °F 3.9 °F 1.9 °F 44% 29.81 in 10.0 mi WNW 25.3 mph 34.5 mph N/A   Scattered Clouds
8:56 PM 19.9 °F 3.9 °F 3.0 °F 48% 29.84 in 10.0 mi WNW 20.7 mph 33.4 mph N/A   Scattered Clouds
9:56 PM 18.0 °F -0.8 °F 1.0 °F 48% 29.87 in 10.0 mi NW 27.6 mph 42.6 mph N/A   Scattered Clouds
10:56 PM 17.1 °F -1.0 °F 1.0 °F 50% 29.89 in 10.0 mi WNW 24.2 mph 36.8 mph N/A   Scattered Clouds
11:56 PM 17.1 °F 0.6 °F 1.9 °F 52% 29.91 in 10.0 mi WNW 19.6 mph 32.2 mph N/A   Partly Cloudy