Islip, NY

6:42 PM EST on December 15, 2019 (GMT -0500)
Long Island Mac Arthur

Weather History for KISP - August, 2019

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Sunday, August 18, 2019

  Actual Average Record
Temperature  
Mean Temperature 79 °F 73 °F  
Max Temperature 87 °F 80 °F 92 °F (2002)
Min Temperature 70 °F 65 °F 52 °F (1979)
Degree Days  
Heating Degree Days 0 0  
Month to date heating degree days 0 0  
Since 1 June heating degree days 16 40  
Since 1 July heating degree days 0 2  
Cooling Degree Days 14 8  
Month to date cooling degree days 183 156  
Year to date cooling degree days 783 596  
Since 1 June cooling degree days 756 572  
Growing Degree Days 28 (Base 50)    
Moisture  
Dew Point 74 °F    
Average Humidity 83    
Maximum Humidity 100    
Minimum Humidity 65    
Precipitation  
Precipitation 0.33 in 0.13 in 1.91 in (2017)
Month to date precipitation 1.90 2.34  
Year to date precipitation 30.79 29.50  
Snow  
Snow 0.00 in 0.00 in - ()
Month to date snowfall 0.0 0.0  
Since 1 July snowfall 0.0 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.00 in    
Wind  
Wind Speed 6 mph (SW)    
Max Wind Speed 23 mph    
Max Gust Speed 28 mph    
Visibility 9 miles    
Events Rain , Thunderstorm    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Astronomy

Aug. 18, 2019 Rise Set
Actual Time 6:05 AM EDT 7:46 PM EDT
Civil Twilight 5:36 AM EDT 8:15 PM EDT
Nautical Twilight 5:00 AM EDT 8:50 PM EDT
Astronomical Twilight 4:22 AM EDT 9:28 PM EDT
Moon 9:39 PM EDT (8/18) 8:48 AM EDT (8/18)
Length of Visible Light 14h 39m
Length of Day
13h 41m
Waning Gibbous, 91% of the Moon is Illuminated
Aug 18
Waning Gibbous
Aug 23
Last Quarter
Aug 30
New
Sep 5
First Quarter
Sep 14
Full

Hourly Weather History & Observations

Time (EDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:33 AM 73.9 °F - 73.9 °F 100% 30.01 in 10.0 mi NNE 4.6 mph - N/A   Overcast
12:56 AM 75.0 °F - 73.9 °F 96% 30.01 in 10.0 mi NNE 8.1 mph - N/A   Overcast
1:12 AM 73.9 °F - 73.9 °F 100% 30.00 in 8.0 mi ENE 4.6 mph - N/A   Overcast
1:48 AM 73.9 °F - 73.9 °F 100% 30.00 in 10.0 mi East 3.5 mph - N/A   Overcast
1:56 AM 73.9 °F - 73.0 °F 97% 30.00 in 10.0 mi Calm Calm - N/A   Overcast
2:10 AM 73.9 °F - 73.0 °F 97% 30.00 in 8.0 mi Calm Calm - 0.00 in Rain Light Rain
2:19 AM 73.9 °F - 73.9 °F 100% 30.00 in 3.0 mi Variable 3.5 mph - 0.02 in Rain , Thunderstorm Rain
2:22 AM 73.9 °F - 73.0 °F 97% 30.01 in 2.5 mi SW 9.2 mph - 0.04 in Rain , Thunderstorm Rain
2:38 AM 71.1 °F - 69.1 °F 93% 30.00 in 4.0 mi SSW 12.7 mph - 0.16 in Rain , Thunderstorm Rain
2:56 AM 71.1 °F - 70.0 °F 96% 29.99 in 10.0 mi WSW 8.1 mph - 0.21 in Rain , Thunderstorm Light Rain
3:11 AM 71.1 °F - 70.0 °F 96% 30.00 in 10.0 mi WSW 4.6 mph - 0.00 in Rain Light Rain
3:56 AM 70.0 °F - 69.1 °F 97% 29.99 in 10.0 mi NW 3.5 mph - 0.00 in   Clear
4:56 AM 70.0 °F - 69.1 °F 97% 29.98 in 10.0 mi Calm Calm - N/A   Partly Cloudy
5:09 AM 70.0 °F - 70.0 °F 100% 29.99 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
5:56 AM 72.0 °F - 72.0 °F 100% 29.99 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:56 AM 73.9 °F - 73.0 °F 97% 30.02 in 10.0 mi West 3.5 mph - N/A   Overcast
7:56 AM 75.0 °F - 73.9 °F 96% 30.03 in 10.0 mi Calm Calm - N/A   Overcast
8:56 AM 75.9 °F - 73.9 °F 94% 30.04 in 10.0 mi SW 5.8 mph - N/A   Overcast
9:56 AM 79.0 °F - 75.9 °F 90% 30.02 in 10.0 mi WSW 4.6 mph - N/A   Mostly Cloudy
10:41 AM 81.0 °F 87.3 °F 75.9 °F 85% 30.02 in 10.0 mi WSW 4.6 mph - N/A   Mostly Cloudy
10:56 AM 81.0 °F 87.3 °F 75.9 °F 85% 30.03 in 10.0 mi SW 8.1 mph - N/A   Overcast
11:56 AM 84.0 °F 93.7 °F 77.0 °F 79% 30.01 in 10.0 mi Variable 4.6 mph - N/A   Overcast
12:31 PM 82.9 °F 91.8 °F 77.0 °F 82% 30.02 in 10.0 mi SSW 8.1 mph - N/A   Mostly Cloudy
12:56 PM 82.9 °F 91.8 °F 77.0 °F 82% 30.01 in 10.0 mi South 9.2 mph - N/A   Mostly Cloudy
1:56 PM 86.0 °F 96.0 °F 75.9 °F 72% 30.01 in 10.0 mi Variable 6.9 mph - N/A   Mostly Cloudy
2:56 PM 86.0 °F 93.8 °F 73.9 °F 67% 30.00 in 10.0 mi SSW 12.7 mph - N/A   Mostly Cloudy
3:56 PM 82.9 °F 89.4 °F 73.9 °F 74% 29.99 in 10.0 mi South 13.8 mph - N/A   Mostly Cloudy
4:56 PM 81.0 °F 87.3 °F 75.9 °F 85% 29.99 in 10.0 mi South 12.7 mph - N/A   Mostly Cloudy
5:26 PM 81.0 °F 87.9 °F 77.0 °F 88% 29.99 in 10.0 mi South 12.7 mph - N/A   Mostly Cloudy
5:56 PM 80.1 °F 85.8 °F 77.0 °F 90% 29.99 in 10.0 mi SSW 10.4 mph - N/A   Mostly Cloudy
6:56 PM 79.0 °F - 77.0 °F 94% 29.98 in 10.0 mi SSW 13.8 mph - N/A   Overcast
7:56 PM 78.1 °F - 77.0 °F 96% 29.98 in 10.0 mi SW 12.7 mph - N/A   Overcast
8:56 PM 78.1 °F - 77.0 °F 96% 30.00 in 9.0 mi SW 8.1 mph - N/A   Mostly Cloudy
9:15 PM 78.1 °F - 77.0 °F 96% 30.02 in 10.0 mi NW 13.8 mph 25.3 mph N/A Thunderstorm Thunderstorm
9:56 PM 75.0 °F - 73.0 °F 94% 30.01 in 10.0 mi Calm Calm - 0.12 in   Mostly Cloudy
10:56 PM 73.0 °F - 72.0 °F 96% 30.00 in 10.0 mi East 3.5 mph - N/A   Mostly Cloudy
11:56 PM 73.0 °F - 73.0 °F 100% 29.97 in 10.0 mi Calm Calm - N/A   Partly Cloudy