TODAY OCT15
TEMPERATURE60
HUMIDITY
PRESSURE30.06
WIND COND.200 8.1
  • 5639Tue
  • 5535Wed
  • 4733Thu
  • 5545Fri30%
  • 5739Sat40%30%
daynightWeather update from Allentown, Lehigh Valley International Airport at
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Belfast Average Temperature

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
January20°F40°F30°F3.5"
February20°F42°F31°F3.1"
March28°F53°F40°F3.4"
April38°F67°F52°F3.9"
May48°F76°F62°F3.7"
June58°F84°F71°F5.5"
July63°F88°F75°F6.4"
August61°F85°F73°F5.0"
September54°F80°F66°F4.5"
October43°F68°F55°F5.4"
November33°F56°F44°F2.8"
December26°F45°F35°F4.9"

Did you know?

  • The highest monthly average temperature in Belfast for July is 75 degrees.
  • The lowest monthly average temperature in Belfast for January is 30 degrees.
  • The most monthly precipitation in Belfast occurs in July with 6.4 inches.
  • The air quality index in Belfast is 21% better than the national average.
  • The pollution index in Belfast is 37% better than the national average.

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Belfast 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.
IndexBelfastPennsylvaniaNational
Air quality index394550
Pollution index3,167,1104,327,9925,066,862

Belfast air quality information

MeasurementTotal
Days measured365
Days with good air quality276
Days with moderate air quality89
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Belfast air quality information

PollutantTotal
Arsenic0.002%
Benzene0.040%
Carbon Tetrachloride0.010%
Lead0.030%
Mercury0.001%

Average monthly Belfast temperature with heat index

Belfast monthly precipitation with daily maximum

Belfast monthly snow depth with daily maximum

Belfast monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Brainards, NJ2213922%
Brookfield, NJ6323922%
Delaware Park, NJ7043922%
Hutchinson, NJ1083922%
New Village, NJ3803922%
Belfast, PA1,0103922%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Topeka, IN1,010468%
Doniphan, NE1,010265430%
Julian, CA1,0106122%
Heritage Creek, KY1,0105510%
Marlborough, NH1,0093628%
Belfast, PA1,0103922%
Source: The Belfast, 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.