Duncan, OK Weather - Forecast & Monthly Averages

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TEMPERATURE	46
HUMIDITY	93
PRESSURE	102030
WIND COND.

Weather Quick Facts

The highest monthly average temperature in Duncan for August is 85.8 degrees
The lowest monthly average temperature in Duncan for December is 40.8 degrees
The most monthly precipitation in Duncan occurs in August with 18.1 inches
The air quality index in Duncan is 2% worse than the national average
The pollution index in Duncan is 67% better than the national average

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Duncan 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	33°F	52°F	42°F	5.9"
February	37°F	55°F	47°F	2.2"
March	49°F	68°F	59°F	14.4"
April	52°F	71°F	63°F	4.9"
May	63°F	79°F	72°F	11.9"
June	70°F	88°F	80°F	13.6"
July	73°F	91°F	83°F	7.2"
August	74°F	94°F	86°F	18.1"
September	67°F	87°F	79°F	5.9"
October	54°F	76°F	66°F	4.9"
November	43°F	68°F	55°F	1.6"
December	31°F	52°F	41°F	4.4"

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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.
Index	Duncan	Oklahoma	National
Air quality index	43	55	42
Pollution index	906,693	1,271,533	2,726,193

Duncan air quality

Measurement	Total
Days measured	365
Days with good air quality	285
Days with moderate air quality	80
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.000%
Benzene	0.010%
Carbon Tetrachloride	0.002%
Lead	0.000%
Mercury	0.000%

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	Population	Air Quality Index	National Avg.
Comanche, OK	1,946	43	14.0%
Bray, OK	1,084	43	14.0%
Empire City, OK	860	43	14.0%
Central High, OK	1,556	43	14.0%
Meridian town, OK	38	43	14.0%
Duncan, OK	23,311	43	14.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Machesney Park, IL	23,320	42	16.0%
Roselle, IL	23,298	55	10.0%
Lennox, CA	23,290	72	44.0%
Keene, NH	23,283	34	32.0%
Allison Park, PA	23,344	56	12.0%
Duncan, OK	23,311	43	14.0%

Source: The Duncan, OK 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.