Hot-summer humid continental

Northbrook, Illinois

Cook County, Illinois · Population 35k · 653 ft elevation

Living in Northbrook

Northbrook has a hot-summer humid continental climate: hot summers (July highs around 83°F) and cold winters (January lows around 16°F).

Precipitation is wet at about 40″ a year, and it gets a fair bit of snow (34″ a season).

Skies are partly sunny (58% of possible sunshine). Summers get sticky, with about 29 muggy days a year.

Air quality is poor: a median AQI of 53, with about 25 unhealthy-air days in the latest year.

Northbrook at a glance

Population
35k
Elevation
653 ft
Average daily high
59°F13th percentile
Average daily low
40°F19th percentile
Annual precipitation
40″38th percentile
Annual snowfall
34″74th percentile
Sunshine hours per year
2,610 hrs23th percentile
Median AQI
5389th percentile
Median home value
$644k89th percentile
Median rent
$2,334/mo93th percentile
Median household income
$155k94th percentile
Property tax rate
1.55%75th percentile
Top state income-tax rate
5.0%
Sales tax (state + local)
8.9%
Unemployment rate
3.2%
Homes with broadband
94%69th percentile
Walkability index
11.173th percentile
Average commute
28 min
Math proficiency (8th grade)
62%73th percentile
Reading proficiency (8th grade)
72%
Violent crime rate
20 per 100k5th percentile
Property crime rate
910 per 100k
Overall natural-hazard risk
10093th percentile
Outdoor access
1918th percentile
Public land within 10 miles
1%
Public land within 30 miles
2%
Mountain relief within 30 miles
295 ft

Climate by month

Average monthly weather in Northbrook, Illinois
MonthHighLowPrecipitationSnowSunshine
Jan32°F16°F2.1″11.3″137 hrs
Feb36°F19°F2.0″7.7″157 hrs
Mar46°F28°F2.3″5.6″194 hrs
Apr57°F38°F4.0″1.1″220 hrs
May68°F48°F4.8″—258 hrs
Jun78°F57°F4.3″—298 hrs
Jul83°F63°F3.7″—330 hrs
Aug82°F62°F4.2″—300 hrs
Sep75°F55°F3.6″—255 hrs
Oct63°F43°F3.6″0.1″188 hrs
Nov49°F32°F2.6″1.9″150 hrs
Dec37°F22°F2.3″5.9″124 hrs

Near Northbrook

Largest places in Illinois

Sources: NOAA climate normals, NASA POWER, EPA air quality, U.S. Census Bureau, FEMA, FBI, EPA walkability and EDFacts. Methodology