Winchester, NH Weather - Forecast & Monthly Averages

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TEMPERATURE
HUMIDITY
PRESSURE
WIND COND.

Weather Quick Facts

The highest monthly average temperature in Winchester for July is 70.1 degrees
The lowest monthly average temperature in Winchester for January is 23.1 degrees
The most monthly precipitation in Winchester occurs in July with 10.6 inches
The air quality index in Winchester is 19% better than the national average
The pollution index in Winchester is 142% worse than the national average

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Winchester 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	14°F	33°F	23°F	4.0"
February	14°F	35°F	24°F	4.6"
March	23°F	44°F	33°F	6.9"
April	34°F	59°F	46°F	4.4"
May	45°F	70°F	57°F	5.3"
June	54°F	76°F	65°F	5.7"
July	60°F	82°F	70°F	10.6"
August	57°F	80°F	67°F	6.5"
September	50°F	73°F	61°F	8.8"
October	40°F	62°F	49°F	8.2"
November	29°F	49°F	39°F	4.3"
December	21°F	38°F	29°F	4.5"

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Winchester 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	Winchester	New Hampshire	National
Air quality index	34	34	42
Pollution index	6,602,810	3,959,618	2,726,193

Winchester air quality

Measurement	Total
Days measured	365
Days with good air quality	348
Days with moderate air quality	17
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.010%
Benzene	0.070%
Carbon Tetrachloride	0.020%
Lead	0.060%
Mercury	0.010%

Average monthly Winchester temperature with heat index

Winchester monthly precipitation with daily maximum

Winchester monthly snow depth with daily maximum

Winchester monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Orange, MA	3,966	34	32.0%
Keene, NH	23,283	34	32.0%
Brattleboro, VT	6,631	34	32.0%
Athol, MA	8,568	34	32.0%
Turners Falls, MA	3,779	34	32.0%
Winchester, NH	1,999	34	32.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Darien, GA	2,000	36	28.0%
Carbon Cliff, IL	1,998	46	8.0%
Wellsville, KS	1,998	41	18.0%
Mexico, ME	2,000	40	20.0%
Gaylord, MN	2,000	46	8.0%
Winchester, NH	1,999	34	32.0%

Source: The Winchester, NH 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.