Update from Beaufort, Marine Corps Air Station, SC on 26 Nov 10:56 PM EST
|Month||Temp. (min)||Temp. (max)||Temp. (avg)||Precipitation|
The highest average temperature in Hilton Head Island is August at 83.1 degrees. The coldest average temperature in Hilton Head Island is January at 52.9 degrees. The most monthly precipitation in Hilton Head Island occurs in January with 0 inches. The Hilton Head Island weather information is based on the average of the previous 3-7 years of data.
|Index||Hilton Head Island||South Carolina||National|
|Air quality index||40||37||50|
The Hilton Head Island, SC air quality index is a median value which considers the most hazardous air pollutants. The Hilton Head Island, SC air quality index is 8.8% greater than the South Carolina average and 19.5% less than the national average.
The Hilton Head Island, SC pollution index is the sum of the most hazardous air pollutants displayed in pounds. The Hilton Head Island, SC pollution index is 56.2% less than the South Carolina average and 71.8% less than the national average.
|Days with good air quality||249|
|Days with moderate air quality||106|
|Days w/ poor A.Q. for sensitive groups||10|
|Days with unhealthy air quality|
|Talahi Island, GA||82||18.2|
|Wilmington Island, GA||81||19.6|
|Whitemarsh Island, GA||81||20.2|
|Richmond Hill, GA||81||37.5|
|Skidaway Island, GA||80||26|
|Dutch Island, GA||80||21.8|
|Tybee Island, GA||79||15.9|
|Port Wentworth, GA||77||24.5|
|Port Royal, SC||77||11.8|