South Lancaster, MA Weather - Forecast & Monthly Averages

TEMPERATURE	52
HUMIDITY	21
PRESSURE	102440
WIND COND.

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Weather Quick Facts

The highest monthly average temperature in South Lancaster for July is 74.1 degrees
The lowest monthly average temperature in South Lancaster for January is 27.1 degrees
The most monthly precipitation in South Lancaster occurs in October with 5.8 inches
The air quality index in South Lancaster is 5% better than the national average
The pollution index in South Lancaster is 177% worse than the national average

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South Lancaster Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
Month	Temp. _(min)	Temp. _(max)	Temp. _(avg)	Precipitation
January	18°F	37°F	27°F	2.8"
February	18°F	39°F	28°F	3.3"
March	26°F	47°F	36°F	4.0"
April	38°F	62°F	49°F	3.9"
May	48°F	72°F	59°F	4.0"
June	57°F	80°F	68°F	5.0"
July	63°F	86°F	74°F	4.0"
August	61°F	83°F	72°F	3.6"
September	54°F	77°F	65°F	3.7"
October	43°F	65°F	53°F	5.8"
November	32°F	53°F	42°F	3.2"
December	23°F	42°F	32°F	4.0"

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South Lancaster 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.
Index	South Lancaster	Massachusetts	National
Air quality index	40	40	42
Pollution index	7,556,320	8,399,610	2,726,193

South Lancaster air quality

Measurement	Total
Days measured	365
Days with good air quality	312
Days with moderate air quality	52
Days w/ poor A.Q. for sensitive groups	1
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.010%
Benzene	0.070%
Carbon Tetrachloride	0.040%
Lead	0.010%
Mercury	0.040%

Average monthly South Lancaster temperature with heat index

South Lancaster monthly precipitation with daily maximum

South Lancaster monthly snow depth with daily maximum

South Lancaster monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Groton, MA	1,127	37	26.0%
Hopkinton, MA	3,864	40	20.0%
Clinton, MA	7,058	40	20.0%
Littleton Common, MA	3,370	40	20.0%
Gardner, MA	20,605	40	20.0%
South Lancaster, MA	1,575	40	20.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Concord, AL	1,575	53	6.0%
Oakland, NE	1,575	40	20.0%
Shinnecock Hills, NY	1,575	41	18.0%
Jackson Center, OH	1,575	39	22.0%
South Carthage, TN	1,575	25	50.0%
South Lancaster, MA	1,575	40	20.0%

Source: The South Lancaster, 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.