Wellesley, MA Weather - Forecast & Monthly Averages

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TEMPERATURE	54
HUMIDITY	82
PRESSURE	101049.84
WIND COND.	120 9.3

Weather Quick Facts

The highest monthly average temperature in Wellesley for July is 73.3 degrees
The lowest monthly average temperature in Wellesley for January is 29.1 degrees
The most monthly precipitation in Wellesley occurs in October with 4.9 inches
The air quality index in Wellesley is 2% worse than the national average
The pollution index in Wellesley is 177% worse than the national average

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Wellesley 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	19°F	39°F	29°F	3.1"
February	18°F	40°F	29°F	2.8"
March	27°F	48°F	37°F	3.2"
April	37°F	61°F	49°F	3.7"
May	46°F	71°F	59°F	3.4"
June	55°F	79°F	67°F	4.5"
July	61°F	85°F	73°F	3.6"
August	57°F	83°F	71°F	3.6"
September	51°F	77°F	64°F	3.2"
October	41°F	66°F	53°F	4.9"
November	32°F	55°F	43°F	3.6"
December	25°F	45°F	34°F	4.0"

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Wellesley 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	Wellesley	Massachusetts	National
Air quality index	43	40	42
Pollution index	7,556,320	8,399,610	2,726,193

Wellesley air quality

Measurement	Total
Days measured	365
Days with good air quality	291
Days with moderate air quality	73
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 Wellesley temperature with heat index

Wellesley monthly precipitation with daily maximum

Wellesley monthly snow depth with daily maximum

Wellesley monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Framingham, MA	74,706	40	20.0%
Marlborough, MA	40,753	40	20.0%
Hopedale, MA	3,750	40	20.0%
Hopkinton, MA	3,986	40	20.0%
Maynard, MA	11,308	40	20.0%
Wellesley, MA	29,744	43	14.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Summerlin South, NV	29,750	54	8.0%
Paragould, AR	29,773	26	48.0%
Fuquay-Varina, NC	29,773	46	8.0%
Whitehorse, YT	29,774	n/a
Leamington, ON	29,703	n/a
Wellesley, MA	29,744	43	14.0%

Source: The Wellesley, 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.