Weather History for Grand Isle, LA

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Monday, September 16, 2013

  Actual Average Record
Temperature  
Mean Temperature 82 °F -  
Max Temperature 87 °F 80 °F 87 °F (2013)
Min Temperature 82 °F 77 °F 71 °F (1999)
Cooling Degree Days 17    
Growing Degree Days 32 (Base 50)    
Moisture  
Dew Point 79 °F    
Average Humidity 82    
Maximum Humidity 84    
Minimum Humidity 79    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.01 in    
Wind  
Wind Speed 10 mph (ENE)    
Max Wind Speed 15 mph    
Max Gust Speed -    
Visibility 7 miles    
Events      
Averages and records for this station are not official NWS values.
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Date:

Astronomy

Sep. 16, 2013 Rise Set
Actual Time 6:45 AM CDT 7:03 PM CDT
Civil Twilight 6:21 AM CDT 7:27 PM CDT
Nautical Twilight 5:53 AM CDT 7:54 PM CDT
Astronomical Twilight 5:25 AM CDT 8:22 PM CDT
Moon 5:03 PM CDT (9/16) 3:43 AM CDT (9/16)
Length of Visible Light 13h 05m
Length of Day
12h 18m
Waxing Gibbous, 90% of the Moon is Illuminated
Sep 16
Waxing Gibbous
Sep 19
Full
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter

Hourly Weather History & Observations

Time (CDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
4:55 AM 82.4 °F 90.9 °F 77.0 °F 84% 29.98 in 7.0 mi ENE 8.1 mph - N/A   Scattered Clouds
11:15 AM 87.8 °F 104.9 °F 80.6 °F 79% 30.04 in 7.0 mi ENE 15.0 mph - N/A   Scattered Clouds