Weather History for Islip, NY

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Week of August 18, 2013 through August 24, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 88 °F 82 °F 77 °F
Mean Temperature 77 °F 73 °F 69 °F
Min Temperature 71 °F 64 °F 59 °F
Degree Days  
Heating Degree Days (base 65) 0 0 0 0
Cooling Degree Days (base 65) 12 8 4 56
Growing Degree Days (base 50) 26 22 18 156
Dew Point  
Dew Point 72 °F 61 °F 52 °F
Precipitation  
Precipitation 0.55 in 0.09 in 0.00 in 0.56 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 17 mph 6 mph 0 mph
Gust Wind 23 mph 19 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.34 in 30.09 in 29.85 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Aug. 20, 2013 Rise Set
Actual Time 6:07 AM EDT 7:42 PM EDT
Civil Twilight 5:38 AM EDT 8:11 PM EDT
Nautical Twilight 5:03 AM EDT 8:46 PM EDT
Astronomical Twilight 4:26 AM EDT 9:23 PM EDT
Moon 7:12 PM EDT (8/20) 5:34 AM EDT (8/20)
Length of Visible Light 14h 33m
Length of Day
13h 35m
Full, 100% of the Moon is Illuminated
Aug 20
Full
Aug 20
Full
Aug 28
Last Quarter
Sep 5
New
Sep 12
First Quarter

Daily Weather History & Observations

2013 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Aug high avg low high avg low high avg low high avg low high avg low high avg high sum  
18 77 69 61 60 58 55 84 69 54 30.25 30.19 30.12 10 10 10 9 4 13 0.01 Rain
19 81 71 61 63 59 54 84 66 48 30.11 30.06 30.02 10 10 10 13 6 17 T  
20 87 75 62 67 62 58 93 65 37 30.12 30.08 30.03 10 10 5 15 6 18 0.00  
21 88 77 66 70 65 57 93 65 37 30.16 30.11 30.05 10 9 3 15 6 20 0.00  
22 81 76 71 72 70 67 93 84 74 30.05 29.97 29.86 10 8 0 17 7 22 0.55 Fog , Rain , Thunderstorm
23 82 74 65 69 61 56 100 71 42 30.09 29.95 29.85 10 10 5 16 7 23 0.00  
24 78 69 59 62 55 52 87 65 43 30.34 30.25 30.11 10 10 10 16 7 20 0.00