Port Royal, SC Weather - Forecast & Monthly Averages

TEMPERATURE	45
HUMIDITY	61
PRESSURE	101050
WIND COND.	290 22.3

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Weather Quick Facts

The highest monthly average temperature in Port Royal for July is 82.4 degrees
The lowest monthly average temperature in Port Royal for January is 49.9 degrees
The most monthly precipitation in Port Royal occurs in August with 7.7 inches
The air quality index in Port Royal is 7% better than the national average
The pollution index in Port Royal is 48% better than the national average

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Port Royal Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
Month	Temp. _(min)	Temp. _(max)	Temp. _(avg)	Precipitation
January	40°F	62°F	50°F	2.8"
February	41°F	64°F	52°F	3.8"
March	48°F	71°F	59°F	4.2"
April	56°F	79°F	67°F	3.9"
May	64°F	85°F	74°F	3.5"
June	71°F	90°F	80°F	4.8"
July	74°F	93°F	82°F	4.8"
August	74°F	91°F	82°F	7.7"
September	69°F	87°F	77°F	4.7"
October	59°F	79°F	68°F	3.9"
November	47°F	70°F	58°F	2.1"
December	44°F	66°F	54°F	3.3"

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Port Royal air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
Index	Port Royal	South Carolina	National
Air quality index	39	37	42
Pollution index	1,428,370	3,620,438	2,726,193

Port Royal air quality

Measurement	Total
Days measured	365
Days with good air quality	295
Days with moderate air quality	70
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.020%
Benzene	0.020%
Carbon Tetrachloride	0.002%
Lead	0.040%
Mercury	0.000%

Average monthly Port Royal temperature with heat index

Port Royal monthly precipitation with daily maximum

Port Royal monthly snow depth with daily maximum

Port Royal monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Burton, SC	8,779	29	42.0%
Beaufort, SC	13,417	29	42.0%
Laurel Bay, SC	6,388	29	42.0%
Hilton Head Island, SC	40,000	39	22.0%
Bluffton, SC	23,176	39	22.0%
Port Royal, SC	13,265	39	22.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Conway, FL	13,266	39	22.0%
Colchester, Subd. C, NS	13,273	n/a
Richmond Hill, GA	13,250	39	22.0%
Bellefontaine, OH	13,250	45	10.0%
Channahon, IL	13,281	0	100.0%
Port Royal, SC	13,265	39	22.0%

Source: The Port Royal, SC weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.