Humid subtropical

Johnston City, Illinois

Williamson County, Illinois · Population 3.4k · 436 ft elevation

Living in Johnston City

Johnston City has a humid subtropical climate: hot summers (July highs around 88°F) and cold winters (January lows around 23°F).

Precipitation is wet at about 49″ a year, and it gets light snow (11″ a season).

Skies are sunny (62% of possible sunshine). Summers get sticky, with about 66 muggy days a year.

Air quality is moderate: a median AQI of 42 and virtually no unhealthy-air days.

Johnston City at a glance

Population
3.4k
Elevation
436 ft
Average daily high
67°F54th percentile
Average daily low
45°F47th percentile
Annual precipitation
49″71th percentile
Annual snowfall
11″47th percentile
Sunshine hours per year
2,799 hrs48th percentile
Median AQI
4252th percentile
Median home value
$85k3th percentile
Median rent
$830/mo16th percentile
Median household income
$47k11th percentile
Property tax rate
1.64%79th percentile
Top state income-tax rate
5.0%
Sales tax (state + local)
8.9%
Unemployment rate
3.9%
Homes with broadband
92%55th percentile
Walkability index
6.619th percentile
Average commute
15 min
Math proficiency (8th grade)
27%19th percentile
Reading proficiency (8th grade)
17%
Overall natural-hazard risk
8641th percentile
Outdoor access
5454th percentile
Public land within 10 miles
4%
Public land within 30 miles
9%
Mountain relief within 30 miles
295 ft

Climate by month

Average monthly weather in Johnston City, Illinois
MonthHighLowPrecipitationSnowSunshine
Jan41°F23°F3.4″3.2″151 hrs
Feb46°F26°F3.1″4.0″153 hrs
Mar56°F34°F4.5″1.3″193 hrs
Apr68°F44°F5.5″—240 hrs
May76°F55°F5.2″—272 hrs
Jun85°F64°F4.6″—325 hrs
Jul88°F67°F4.1″—337 hrs
Aug87°F64°F3.2″—316 hrs
Sep81°F56°F3.4″—271 hrs
Oct70°F44°F3.7″0.2″224 hrs
Nov56°F35°F4.5″—177 hrs
Dec45°F27°F3.7″2.7″139 hrs

Near Johnston City

Largest places in Illinois

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