TODAY JUN20
TEMPERATURE76
HUMIDITY94
PRESSURE29.96
WIND COND.
  • 9573Wed30%
  • 9273Thu30%40%
  • 9070Fri50%60%
  • 9072Sat50%30%
  • 9473Sun30%30%
daynightWeather update from Greer, Greenville-Spartanburg Airport at

Duncan Average Weather

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January13°F72°F44°F3.0"
February16°F74°F45°F2.8"
March20°F88°F53°F4.2"
April28°F92°F61°F3.2"
May43°F92°F68°F3.3"
June55°F99°F77°F4.5"
July60°F106°F79°F3.4"
August64°F104°F80°F3.5"
September48°F93°F73°F2.0"
October30°F88°F62°F3.2"
November22°F81°F52°F2.9"
December19°F77°F45°F4.8"

Did you know?

  • The highest monthly average temperature in Duncan for August is 80 degrees.
  • The lowest monthly average temperature in Duncan for January is 44 degrees.
  • The most monthly precipitation in Duncan occurs in December with 4.8 inches.
  • The air quality index in Duncan is 19% better than the national average.
  • The pollution index in Duncan is 54% worse than the national average.

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Compare Duncan, SC Weather To Other Cities

Duncan 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.
IndexDuncanSouth CarolinaNational
Air quality index403750
Pollution index7,804,1803,325,3185,066,862

Duncan air quality information

MeasurementTotal
Days measured365
Days with good air quality274
Days with moderate air quality91
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Duncan air quality information

PollutantTotal
Arsenic0.010%
Benzene0.070%
Carbon Tetrachloride0.020%
Lead0.050%
Mercury0.003%

Average monthly Duncan temperature with heat index

Duncan monthly precipitation with daily maximum

Duncan monthly snow depth with daily maximum

Duncan monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Arcadia, SC3,8204020%
Fingerville, SC04020%
Greenville, SC62,7764020%
Lyman, SC3,3784020%
Saxon, SC3,7344020%
Duncan, SC3,2834020%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Montura, FL3,2843334%
El Cenizo, TX3,2823824%
Lowville, NY3,2823138%
Russell, KY3,2813824%
Gray, GA3,2814118%
Duncan, SC3,2834020%
Source: The Duncan, 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.