Mountainside, NJ Weather - Forecast & Monthly Averages

TEMPERATURE
HUMIDITY
PRESSURE
WIND COND.

New Real Estate Listings in Mountainside Area

For Sale For Rent

Search

Search Homes for Sale in Mountainside, NJ

Weather Quick Facts

The highest monthly average temperature in Mountainside for July is 78.1 degrees
The lowest monthly average temperature in Mountainside for February is 32.4 degrees
The most monthly precipitation in Mountainside occurs in May with 9.9 inches
The air quality index in Mountainside is 21% worse than the national average
The pollution index in Mountainside is 371% worse than the national average

Compare Mountainside, NJ Weather

Write a review to give others more information about this area.

See all Mountainside poll results

Mountainside 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	26°F	42°F	34°F	6.3"
February	24°F	42°F	32°F	4.9"
March	31°F	50°F	40°F	7.3"
April	46°F	67°F	55°F	5.0"
May	56°F	76°F	65°F	9.9"
June	64°F	83°F	73°F	8.3"
July	71°F	87°F	78°F	8.3"
August	67°F	84°F	75°F	7.8"
September	61°F	80°F	70°F	4.9"
October	54°F	72°F	62°F	6.3"
November	38°F	56°F	46°F	5.9"
December	33°F	46°F	39°F	5.8"

The best places in New Jersey

Here are the best places to live in New Jersey

These are the largest cities in New Jersey

Check out the 10 safest cities in New Jersey

Most Dangerous Cities In The US

Mountainside 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	Mountainside	New Jersey	National
Air quality index	51	45	42
Pollution index	12,837,200	7,246,891	2,726,193

Mountainside air quality

Measurement	Total
Days measured	365
Days with good air quality	169
Days with moderate air quality	180
Days w/ poor A.Q. for sensitive groups	16
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.010%
Benzene	0.110%
Carbon Tetrachloride	0.050%
Lead	0.020%
Mercury	0.230%

Average monthly Mountainside temperature with heat index

Mountainside monthly precipitation with daily maximum

Mountainside monthly snow depth with daily maximum

Mountainside monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Mendham, NJ	4,880	34	32.0%
Wharton, NJ	6,458	34	32.0%
Dover, NJ	17,866	34	32.0%
Kenvil, NJ	1,934	34	32.0%
Victory Gardens, NJ	1,604	34	32.0%
Mountainside, NJ	6,859	51	2.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Greenbrier, TN	6,859	45	10.0%
Douglas, NB	6,862	n/a
Pea Ridge, WV	6,854	42	16.0%
Newport, TN	6,865	44	12.0%
Freeland, MI	6,866	26	48.0%
Mountainside, NJ	6,859	51	2.0%

Source: The Mountainside, NJ 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.