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Chicago, IL vs Trenton, MO weather comparison

Chicago

IL

Trenton endures about 25 more days above 90 °F each year.

Chicago picks up around 20 more inches of snow each winter. Trenton enjoys about 27 more sunny days a year than Chicago.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Chicago, IL and Trenton, MO
ChicagoMetricTrenton
180 daysSunny daysclear or partly cloudy skies207 days
39 inPrecipitationper year40 in
132 daysWet daysrain or snow per year112 days
37 inSnowfallper year17 in
16 daysHot daysabove 90 °F41 days
102 daysFreezing nightsat or below 32 °F127 days
71%Humidityaverage relative69%
52 °FAverage temperatureyear round53 °F

Monthly temperatures

Average daily high and low for each month, in °F. The gap between the two lines is what an ordinary day feels like across the year.

ChicagoTrenton

Daily highs

406080JanMarMayJulSepNovChicago, Jan: 32 °FChicago, Feb: 36 °FChicago, Mar: 46 °FChicago, Apr: 57 °FChicago, May: 68 °FChicago, Jun: 78 °FChicago, Jul: 83 °FChicago, Aug: 81 °FChicago, Sep: 75 °FChicago, Oct: 62 °FChicago, Nov: 49 °FChicago, Dec: 37 °FTrenton, Jan: 35 °FTrenton, Feb: 40 °FTrenton, Mar: 53 °FTrenton, Apr: 64 °FTrenton, May: 75 °FTrenton, Jun: 85 °FTrenton, Jul: 89 °FTrenton, Aug: 87 °FTrenton, Sep: 79 °FTrenton, Oct: 67 °FTrenton, Nov: 52 °FTrenton, Dec: 40 °F

Daily lows

204060JanMarMayJulSepNovChicago, Jan: 20 °FChicago, Feb: 23 °FChicago, Mar: 31 °FChicago, Apr: 41 °FChicago, May: 51 °FChicago, Jun: 61 °FChicago, Jul: 67 °FChicago, Aug: 67 °FChicago, Sep: 60 °FChicago, Oct: 47 °FChicago, Nov: 36 °FChicago, Dec: 25 °FTrenton, Jan: 16 °FTrenton, Feb: 20 °FTrenton, Mar: 30 °FTrenton, Apr: 41 °FTrenton, May: 53 °FTrenton, Jun: 63 °FTrenton, Jul: 67 °FTrenton, Aug: 64 °FTrenton, Sep: 55 °FTrenton, Oct: 43 °FTrenton, Nov: 31 °FTrenton, Dec: 21 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Chicago high323646576878838175624937
Trenton high354053647585898779675240
Chicago low202331415161676760473625
Trenton low162030415363676455433121

Monthly precipitation

Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.

ChicagoTrenton
0.02.04.06.0JanMarMayJulSepNovChicago, Jan: 2.4 inChicago, Feb: 2.1 inChicago, Mar: 2.8 inChicago, Apr: 4.5 inChicago, May: 4.4 inChicago, Jun: 4.0 inChicago, Jul: 3.6 inChicago, Aug: 3.8 inChicago, Sep: 3.0 inChicago, Oct: 3.3 inChicago, Nov: 2.8 inChicago, Dec: 2.4 inTrenton, Jan: 1.5 inTrenton, Feb: 1.9 inTrenton, Mar: 3.2 inTrenton, Apr: 4.7 inTrenton, May: 5.6 inTrenton, Jun: 4.4 inTrenton, Jul: 4.3 inTrenton, Aug: 3.8 inTrenton, Sep: 3.4 inTrenton, Oct: 3.3 inTrenton, Nov: 2.3 inTrenton, Dec: 1.8 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Chicago2.42.12.84.54.44.03.63.83.03.32.82.4
Trenton1.51.93.24.75.64.44.33.83.43.32.31.8

Monthly sunny days

Days each month with clear or partly cloudy skies, so compare the same month between cities.

ChicagoTrenton
01020JanMarMayJulSepNovChicago, Jan: 10 daysChicago, Feb: 11 daysChicago, Mar: 14 daysChicago, Apr: 13 daysChicago, May: 15 daysChicago, Jun: 16 daysChicago, Jul: 20 daysChicago, Aug: 20 daysChicago, Sep: 20 daysChicago, Oct: 16 daysChicago, Nov: 14 daysChicago, Dec: 11 daysTrenton, Jan: 15 daysTrenton, Feb: 14 daysTrenton, Mar: 15 daysTrenton, Apr: 15 daysTrenton, May: 16 daysTrenton, Jun: 17 daysTrenton, Jul: 21 daysTrenton, Aug: 21 daysTrenton, Sep: 22 daysTrenton, Oct: 19 daysTrenton, Nov: 17 daysTrenton, Dec: 16 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Chicago101114131516202020161411
Trenton151415151617212122191716

Keep comparing

Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.

Chicago vs another city

See the full Chicago, IL climate profile

More Illinois cities

Trenton vs another city

See the full Trenton, MO climate profile

More Missouri cities

About this data

Every figure on this page is a 30 year average computed from daily climate history for 1991-2020, using each city's own coordinates. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).