TODAY SEP21
TEMPERATURE69
HUMIDITY75
PRESSURE30.1
WIND COND.190 16.1
  • 7352Sat50%
  • 7152Sun
  • 6750Mon
  • 7063Tue60%
  • 7759Wed40%50%
daynightWeather update from Groton / New London, Groton / New London Airport at
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Long Hill 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
January23°F40°F32°F2.5"
February23°F40°F32°F2.1"
March30°F47°F38°F3.3"
April39°F58°F48°F3.1"
May48°F66°F57°F3.6"
June58°F75°F66°F3.6"
July65°F81°F72°F2.8"
August63°F80°F71°F3.0"
September57°F75°F66°F3.3"
October47°F65°F56°F4.4"
November37°F55°F46°F2.9"
December29°F46°F37°F3.4"

Did you know?

  • The highest monthly average temperature in Long Hill for July is 72 degrees.
  • The lowest monthly average temperature in Long Hill for January is 32 degrees.
  • The most monthly precipitation in Long Hill occurs in October with 4.4 inches.
  • The air quality index in Long Hill is 11% better than the national average.
  • The pollution index in Long Hill is 18% better than the national average.

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Long Hill 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.
IndexLong HillConnecticutNational
Air quality index444350
Pollution index4,117,2507,127,5315,066,862

Long Hill air quality information

MeasurementTotal
Days measured349
Days with good air quality234
Days with moderate air quality109
Days w/ poor A.Q. for sensitive groups6
Days with unhealthy air quality

Long Hill air quality information

PollutantTotal
Arsenic0.010%
Benzene0.050%
Carbon Tetrachloride0.010%
Lead0.010%
Mercury0.010%

Average monthly Long Hill temperature with heat index

Long Hill monthly precipitation with daily maximum

Long Hill monthly snow depth with daily maximum

Long Hill monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Groton, CT9,2404412%
New London, CT27,2184412%
Old Mystic, CT3,4034412%
Stonington, CT9734412%
Ashaway, RI1,1114412%
Long Hill, CT4,4624412%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Crestline, OH4,4633628%
Lawrenceville, IL4,4643334%
Middletown, MD4,4604118%
Aurora, NE4,459265430%
Coleman, TX4,4673334%
Long Hill, CT4,4624412%
Source: The Long Hill, CT 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.