TODAY MAY22
TEMPERATURE72
HUMIDITY35
PRESSURE30.08
WIND COND.250 3.4
  • 6953Tue70%
  • 7751Wed
  • 6855Thu
  • 8364Fri
  • 8257Sat30%30%
daynightWeather update from Bedford, Hanscom Field at

Lexington 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-10°F71°F28°F3.1"
February-6°F61°F28°F2.7"
March1°F73°F35°F3.3"
April23°F91°F48°F4.1"
May28°F91°F56°F5.1"
June37°F99°F67°F4.4"
July46°F97°F72°F5.3"
August45°F99°F71°F3.0"
September34°F95°F63°F3.0"
October25°F88°F52°F5.3"
November14°F72°F43°F3.9"
December-6°F69°F32°F4.1"

Did you know?

  • The highest monthly average temperature in Lexington for July is 72 degrees.
  • The lowest monthly average temperature in Lexington for January is 28 degrees.
  • The most monthly precipitation in Lexington occurs in October with 5.3 inches.
  • The air quality index in Lexington is 5% better than the national average.
  • The pollution index in Lexington is 49% worse than the national average.

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Compare Lexington, MA Weather To Other Cities

Lexington 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.
IndexLexingtonMassachusettsNational
Air quality index474050
Pollution index7,556,32012,377,8395,066,862

Lexington air quality information

MeasurementTotal
Days measured365
Days with good air quality223
Days with moderate air quality137
Days w/ poor A.Q. for sensitive groups5
Days with unhealthy air quality

Lexington air quality information

PollutantTotal
Arsenic0.010%
Benzene0.070%
Carbon Tetrachloride0.040%
Lead0.010%
Mercury0.040%

Average monthly Lexington temperature with heat index

Lexington monthly precipitation with daily maximum

Lexington monthly snow depth with daily maximum

Lexington monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Lowell, MA109,8713628%
Littleton Common, MA3,0023824%
Cordaville, MA2,8473824%
Maynard, MA10,5263824%
Framingham, MA70,7433824%
Lexington, MA32,936476%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Newark, DE32,9413824%
Foster City, CA32,967484%
Socorro, TX32,988512%
Ken Caryl, CO32,883548%
Franklin Town, MA32,8734510%
Lexington, MA32,936476%
Source: The Lexington, MA 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.