Hot-summer humid continental

Monticello, Illinois

Piatt County, Illinois · Population 6.3k · 659 ft elevation

Living in Monticello

Monticello has a hot-summer humid continental climate: hot summers (July highs around 84°F) and cold winters (January lows around 18°F).

Precipitation is wet at about 40″ a year, and it gets light snow (18″ a season).

Skies are sunny (60% of possible sunshine). Summers get sticky, with about 41 muggy days a year.

Air quality is moderate: a median AQI of 43, with about 4 unhealthy-air days in the latest year.

Monticello at a glance

Population
6.3k
Elevation
659 ft
Average daily high
62°F30th percentile
Average daily low
41°F25th percentile
Annual precipitation
40″38th percentile
Annual snowfall
18″56th percentile
Sunshine hours per year
2,727 hrs42th percentile
Median AQI
4356th percentile
Median home value
$196k33th percentile
Median rent
$1,030/mo36th percentile
Median household income
$89k65th percentile
Property tax rate
1.74%82th percentile
Top state income-tax rate
5.0%
Sales tax (state + local)
8.9%
Unemployment rate
2.2%
Homes with broadband
87%27th percentile
Walkability index
8.142th percentile
Average commute
23 min
Math proficiency (8th grade)
37%34th percentile
Reading proficiency (8th grade)
67%
Violent crime rate
0 per 100k0th percentile
Property crime rate
232 per 100k
Overall natural-hazard risk
356th percentile
Outdoor access
44th percentile
Public land within 10 miles
2%
Public land within 30 miles
0%
Mountain relief within 30 miles
164 ft

Climate by month

Average monthly weather in Monticello, Illinois
MonthHighLowPrecipitationSnowSunshine
Jan33°F18°F2.3″7.7″144 hrs
Feb38°F21°F2.0″4.4″155 hrs
Mar50°F30°F2.9″2.3″194 hrs
Apr63°F40°F3.7″0.1″231 hrs
May74°F51°F4.6″—267 hrs
Jun82°F60°F4.9″—312 hrs
Jul84°F62°F4.3″—337 hrs
Aug82°F60°F3.3″—311 hrs
Sep78°F52°F3.1″—270 hrs
Oct66°F41°F3.1″—207 hrs
Nov50°F31°F3.1″0.8″167 hrs
Dec38°F23°F2.3″2.8″133 hrs

Near Monticello

Largest places in Illinois

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