Winthrop Harbor, IL Weather - Forecast & Monthly Averages

TEMPERATURE	42
HUMIDITY	79
PRESSURE	102300
WIND COND.	110 9.4

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Weather Quick Facts

The highest monthly average temperature in Winthrop Harbor for July is 72 degrees
The lowest monthly average temperature in Winthrop Harbor for January is 23.8 degrees
The most monthly precipitation in Winthrop Harbor occurs in June with 4.5 inches
The air quality index in Winthrop Harbor is 7% better than the national average
The pollution index in Winthrop Harbor is 15% worse than the national average

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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"

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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	39	41	42
Pollution index	3,131,700	3,148,694	2,726,193

Winthrop Harbor air quality information

Measurement	Total
Days measured	203
Days with good air quality	174
Days with moderate air quality	28
Days w/ poor A.Q. for sensitive groups	1
Days with unhealthy air quality	0

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	Population	Air Quality Index	National Avg.
Antioch, IL	14,231	39	22.0%
Libertyville, IL	20,300	39	22.0%
Venetian Village, IL	2,561	39	22.0%
Round Lake Heights, IL	3,009	39	22.0%
Wadsworth, IL	3,515	39	22.0%
Winthrop Harbor, IL	6,675	39	22.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Raleigh Hills, OR	6,675	38	24.0%
Barnhart, MO	6,676	54	8.0%
Barnesville, GA	6,673	38	24.0%
Logan, OH	6,677	25	50.0%
Marvin, NC	6,672	49	2.0%
Winthrop Harbor, IL	6,675	39	22.0%

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.