TODAY JUL18
TEMPERATURE67
HUMIDITY90
PRESSURE29.9
WIND COND.270 3.4
  • 8357Wed
  • 8360Thu
  • 8465Fri
  • 8266Sat40%50%
  • 8369Sun60%60%
daynightWeather update from York, York Airport at

Stonybrook 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
January-8°F72°F33°F2.6"
February-7°F70°F32°F2.4"
March-8°F82°F40°F2.9"
April21°F90°F52°F4.0"
May30°F93°F60°F3.5"
June41°F97°F71°F2.0"
July46°F94°F74°F3.9"
August45°F97°F73°F3.4"
September34°F91°F65°F3.1"
October25°F99°F54°F4.7"
November16°F76°F45°F3.2"
December-5°F73°F34°F3.6"

Did you know?

  • The highest monthly average temperature in Stonybrook for July is 74 degrees.
  • The lowest monthly average temperature in Stonybrook for February is 32 degrees.
  • The most monthly precipitation in Stonybrook occurs in October with 4.7 inches.
  • The air quality index in Stonybrook is 9% better than the national average.
  • The pollution index in Stonybrook is 118% worse than the national average.

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Compare Stonybrook, PA Weather To Other Cities

Stonybrook 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.
IndexStonybrookPennsylvaniaNational
Air quality index454550
Pollution index11,091,2004,327,9925,066,862

Stonybrook air quality information

MeasurementTotal
Days measured365
Days with good air quality241
Days with moderate air quality119
Days w/ poor A.Q. for sensitive groups5
Days with unhealthy air quality

Stonybrook air quality information

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

Average monthly Stonybrook temperature with heat index

Stonybrook monthly precipitation with daily maximum

Stonybrook monthly snow depth with daily maximum

Stonybrook monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Penryn, PA9634314%
Dallastown, PA3,8164510%
East York, PA8,4674510%
Felton, PA5784510%
Hallam, PA2,6564510%
Stonybrook, PA2,2544510%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Neillsville, WI2,254355610%
Hebron, OH2,2544314%
Franklinton, NC2,2534314%
Belleair Bluffs, FL2,2554314%
Butler, AL2,2553138%
Stonybrook, PA2,2544510%
Source: The Stonybrook, 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.