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Duncannon 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
January24°F40°F32°F2.5"
February24°F43°F33°F2.3"
March33°F53°F42°F2.7"
April43°F66°F54°F3.9"
May52°F75°F63°F3.9"
June62°F83°F73°F4.6"
July67°F87°F77°F4.4"
August64°F85°F74°F4.2"
September58°F79°F68°F3.4"
October47°F67°F56°F5.1"
November36°F55°F45°F2.4"
December29°F45°F36°F3.7"

Did you know?

  • The highest monthly average temperature in Duncannon for July is 77 degrees.
  • The lowest monthly average temperature in Duncannon for January is 32 degrees.
  • The most monthly precipitation in Duncannon occurs in October with 5.1 inches.
  • The air quality index in Duncannon is 4% worse than the national average.
  • The pollution index in Duncannon is 118% worse than the national average.

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Compare Duncannon, PA Weather To Other Cities

Duncannon 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.
IndexDuncannonPennsylvaniaNational
Air quality index524550
Pollution index11,091,2004,327,9925,066,862

Duncannon air quality information

MeasurementTotal
Days measured365
Days with good air quality168
Days with moderate air quality187
Days w/ poor A.Q. for sensitive groups10
Days with unhealthy air quality

Duncannon air quality information

PollutantTotal
Arsenic0.010%
Benzene0.140%
Carbon Tetrachloride0.030%
Lead0.310%
Mercury0.004%

Average monthly Duncannon temperature with heat index

Duncannon monthly precipitation with daily maximum

Duncannon monthly snow depth with daily maximum

Duncannon monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Highspire, PA2,275524%
Lenkerville, PA683524%
Marysville, PA2,516524%
New Buffalo, PA101524%
Newport, PA1,442524%
Duncannon, PA1,472524%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Mariposa, CA1,472548%
Cementon, PA1,471476%
Tubac, AZ1,471355610%
Jonesboro, IN1,4713628%
Snyder, OK1,4734216%
Duncannon, PA1,472524%
Source: The Duncannon, PA 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.