Winthrop Harbor, IL Weather Forecast & Monthly Average Temperatures

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TEMPERATURE
HUMIDITY	69
PRESSURE	30.2
WIND COND.	5.8

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Winthrop Harbor 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	16°F	32°F	24°F	1.4"
February	17°F	33°F	25°F	1.5"
March	28°F	45°F	36°F	2.6"
April	37°F	57°F	46°F	4.1"
May	47°F	68°F	57°F	3.7"
June	57°F	77°F	67°F	4.5"
July	63°F	82°F	72°F	4.4"
August	62°F	80°F	71°F	3.7"
September	55°F	73°F	64°F	3.3"
October	44°F	62°F	52°F	3.4"
November	33°F	49°F	40°F	2.0"
December	22°F	36°F	29°F	2.5"

Did you know?

The highest monthly average temperature in Winthrop Harbor for July is 72 degrees.
The lowest monthly average temperature in Winthrop Harbor for January is 24 degrees.
The most monthly precipitation in Winthrop Harbor occurs in June with 4.5 inches.
The air quality index in Winthrop Harbor is 30% better than the national average.
The pollution index in Winthrop Harbor is 38% better than the national average.

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Compare Winthrop Harbor, IL Weather To Other Cities

Winthrop Harbor 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	Winthrop Harbor	Illinois	National
Air quality index	35	41	50
Pollution index	3,131,700	3,347,295	5,066,862

Winthrop Harbor air quality information

Measurement	Total
Days measured	189
Days with good air quality	178
Days with moderate air quality	11
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Winthrop Harbor air quality information

Pollutant	Total
Arsenic	0.010%
Benzene	0.030%
Carbon Tetrachloride	0.010%
Lead	0.004%
Mercury	0.360%

Average monthly Winthrop Harbor temperature with heat index

Winthrop Harbor monthly precipitation with daily maximum

Winthrop Harbor monthly snow depth with daily maximum

Winthrop Harbor monthly wind speed information

Nearby cities with good air quality

City, State	Population	Air Quality Index	National Avg.
Grandwood Park, IL	5,471	35	30%
Hainesville, IL	3,671	35	30%
Lake Villa, IL	8,916	35	30%
North Chicago, IL	30,023	35	30%
Round Lake Beach, IL	27,936	35	30%
Winthrop Harbor, IL	6,832	35	30%

Cities with similar population

City, State	Population	Air Quality Index	National Avg.
Barrington, NJ	6,831	57	14%
Greenville, IL	6,833	39	22%
Milford, OH	6,833	54	8%
Whitinsville, MA	6,831	38	24%
Mountainside, NJ	6,835	53	6%
Winthrop Harbor, IL	6,832	35	30%

Source: The Winthrop Harbor, IL 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.