Weather History for Islip, NY

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Saturday, April 20, 2013

  Actual Average Record
Temperature  
Mean Temperature 53 °F 51 °F  
Max Temperature 59 °F 59 °F 82 °F (2005)
Min Temperature 46 °F 42 °F 32 °F (2001)
Degree Days  
Heating Degree Days 12 14  
Month to date heating degree days 312 350  
Since 1 July heating degree days 4745 5042  
Cooling Degree Days 0 0  
Month to date cooling degree days 1 0  
Year to date cooling degree days 1 0  
Growing Degree Days 2 (Base 50)    
Moisture  
Dew Point 38 °F    
Average Humidity 59    
Maximum Humidity 89    
Minimum Humidity 28    
Precipitation  
Precipitation 0.20 in 0.14 in 1.01 in (2009)
Month to date precipitation 1.50 2.96  
Year to date precipitation 12.27 14.30  
Snow  
Snow 0.00 in 0.00 in - ()
Month to date snowfall 0.0 0.5  
Since 1 July snowfall 46.9 24.7  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.89 in    
Wind  
Wind Speed 11 mph (WNW)    
Max Wind Speed 22 mph    
Max Gust Speed 30 mph    
Visibility 9 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Apr. 20, 2013 Rise Set
Actual Time 6:05 AM EDT 7:37 PM EDT
Civil Twilight 5:36 AM EDT 8:06 PM EDT
Nautical Twilight 5:02 AM EDT 8:41 PM EDT
Astronomical Twilight 4:25 AM EDT 9:18 PM EDT
Moon 2:16 PM EDT (4/20) 2:55 AM EDT (4/20)
Length of Visible Light 14h 29m
Length of Day
13h 31m
Waxing Gibbous, 71% of the Moon is Illuminated
Apr 20
Waxing Gibbous
Apr 25
Full
May 2
Last Quarter
May 9
New
May 18
First Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:03 AM 59.0 °F - 57.2 °F 94% 29.68 in 6.0 mi SSW 21.9 mph 34.5 mph 0.01 in Rain Light Rain
12:56 AM 57.9 °F - 55.9 °F 93% 29.70 in 8.0 mi SSW 18.4 mph 29.9 mph 0.02 in   Overcast
1:56 AM 55.9 °F - 54.0 °F 93% 29.69 in 5.0 mi WSW 13.8 mph 28.8 mph 0.01 in Rain Light Rain
2:33 AM 53.6 °F - 51.8 °F 94% 29.68 in 10.0 mi NW 12.7 mph 26.5 mph 0.01 in Rain Light Rain
2:42 AM 53.6 °F - 50.0 °F 88% 29.67 in 10.0 mi NW 6.9 mph - 0.01 in   Overcast
2:56 AM 54.0 °F - 50.0 °F 86% 29.68 in 10.0 mi WNW 5.8 mph - 0.01 in Rain Light Rain
3:56 AM 52.0 °F - 48.0 °F 86% 29.70 in 8.0 mi West 5.8 mph - 0.04 in Rain Light Rain
4:56 AM 51.1 °F - 46.9 °F 86% 29.73 in 10.0 mi West 8.1 mph - 0.05 in Rain Light Rain
5:56 AM 50.0 °F - 46.9 °F 89% 29.78 in 8.0 mi West 12.7 mph - 0.04 in Rain Light Rain
6:56 AM 50.0 °F - 46.9 °F 89% 29.81 in 8.0 mi West 10.4 mph - 0.05 in Rain Light Rain
7:49 AM 48.2 °F - 44.6 °F 87% 29.84 in 8.0 mi NNW 13.8 mph 27.6 mph 0.00 in   Overcast
7:56 AM 48.0 °F - 44.1 °F 86% 29.85 in 8.0 mi NNW 10.4 mph - 0.00 in   Overcast
8:29 AM 46.4 °F 42.4 °F 44.6 °F 93% 29.85 in 10.0 mi NW 8.1 mph - N/A   Overcast
8:56 AM 48.0 °F - 44.1 °F 86% 29.86 in 10.0 mi WNW 8.1 mph - N/A   Overcast
9:56 AM 52.0 °F - 42.1 °F 69% 29.89 in 10.0 mi WNW 8.1 mph - N/A   Overcast
10:56 AM 55.0 °F - 37.9 °F 53% 29.92 in 10.0 mi West 11.5 mph - N/A   Overcast
11:56 AM 55.0 °F - 28.0 °F 35% 29.94 in 10.0 mi West 17.3 mph - N/A   Mostly Cloudy
12:56 PM 55.9 °F - 27.0 °F 33% 29.92 in 10.0 mi WNW 16.1 mph 21.9 mph N/A   Mostly Cloudy
1:56 PM 54.0 °F - 28.0 °F 37% 29.95 in 10.0 mi WNW 16.1 mph 21.9 mph N/A   Mostly Cloudy
2:56 PM 55.0 °F - 28.0 °F 35% 29.95 in 10.0 mi West 13.8 mph 25.3 mph N/A   Mostly Cloudy
3:56 PM 55.9 °F - 28.0 °F 34% 29.96 in 10.0 mi West 9.2 mph 19.6 mph N/A   Mostly Cloudy
4:56 PM 57.9 °F - 27.0 °F 31% 29.98 in 10.0 mi West 13.8 mph 21.9 mph N/A   Mostly Cloudy
5:56 PM 57.0 °F - 26.1 °F 30% 30.01 in 10.0 mi West 11.5 mph 18.4 mph N/A   Mostly Cloudy
6:56 PM 57.0 °F - 25.0 °F 29% 30.03 in 10.0 mi WNW 11.5 mph - N/A   Mostly Cloudy
7:56 PM 55.0 °F - 25.0 °F 31% 30.07 in 10.0 mi NW 6.9 mph - N/A   Mostly Cloudy
8:56 PM 52.0 °F - 27.0 °F 38% 30.13 in 10.0 mi WNW 6.9 mph - N/A   Mostly Cloudy
9:56 PM 51.1 °F - 27.0 °F 39% 30.17 in 10.0 mi NW 9.2 mph - N/A   Mostly Cloudy
10:56 PM 50.0 °F - 24.1 °F 36% 30.20 in 10.0 mi NW 16.1 mph 20.7 mph N/A   Mostly Cloudy
11:56 PM 48.9 °F - 25.0 °F 39% 30.24 in 10.0 mi NW 13.8 mph - N/A   Mostly Cloudy