TODAY JUL17
TEMPERATURE72
HUMIDITY91
PRESSURE30.07
WIND COND.
  • 8874Wed40%40%
  • 9675Thu20%
  • 9873Fri
  • 9370Sat
  • 9473Sun
daynightWeather update from Fayetteville/Springdale, Northwest Arkansas Regional Airport at

Decatur 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
January8°F74°F37°F2.7"
February7°F76°F40°F2.5"
March10°F84°F50°F3.3"
April15°F93°F56°F5.3"
May31°F91°F65°F4.3"
June49°F96°F74°F4.6"
July50°F101°F77°F3.3"
August49°F103°F77°F3.8"
September36°F94°F68°F3.9"
October25°F90°F57°F4.2"
November14°F83°F49°F1.5"
December1°F72°F37°F2.0"

Did you know?

  • The highest monthly average temperature in Decatur for August is 77 degrees.
  • The lowest monthly average temperature in Decatur for December is 37 degrees.
  • The most monthly precipitation in Decatur occurs in April with 5.3 inches.
  • The air quality index in Decatur is 21% better than the national average.
  • The pollution index in Decatur is 58% better than the national average.

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Decatur 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.
IndexDecaturArkansasNational
Air quality index393850
Pollution index2,124,1901,270,1085,066,862

Decatur air quality information

MeasurementTotal
Days measured365
Days with good air quality315
Days with moderate air quality50
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Decatur air quality information

PollutantTotal
Arsenic0.020%
Benzene0.030%
Carbon Tetrachloride0.004%
Lead0.010%
Mercury0.200%

Average monthly Decatur temperature with heat index

Decatur monthly precipitation with daily maximum

Decatur monthly snow depth with daily maximum

Decatur monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Colcord, OK8763628%
Dripping Springs, OK343628%
Noel, MO1,9633726%
Sycamore, OK3003726%
Southwest City, MO9723726%
Decatur, AR2,2723922%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Mason City, IL2,2723530%
Jamestown West, NY2,2723334%
Arcanum, OH2,272688%
West Lafayette, OH2,2723628%
Village of Four Seasons, MO2,2723726%
Decatur, AR2,2723922%
Source: The Decatur, AR 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.