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Chicago, IL vs Red Oak, IA weather comparison

Chicago

IL

Chicago has around 39 fewer freezing nights a year.

Chicago picks up around 10 more inches of snow each winter. Red Oak enjoys about 35 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 Red Oak, IA
ChicagoMetricRed Oak
180 daysSunny daysclear or partly cloudy skies215 days
39 inPrecipitationper year37 in
132 daysWet daysrain or snow per year107 days
37 inSnowfallper year27 in
16 daysHot daysabove 90 °F26 days
102 daysFreezing nightsat or below 32 °F141 days
71%Humidityaverage relative69%
52 °FAverage temperatureyear round51 °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.

ChicagoRed Oak

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 °FRed Oak, Jan: 33 °FRed Oak, Feb: 38 °FRed Oak, Mar: 51 °FRed Oak, Apr: 63 °FRed Oak, May: 73 °FRed Oak, Jun: 83 °FRed Oak, Jul: 86 °FRed Oak, Aug: 85 °FRed Oak, Sep: 78 °FRed Oak, Oct: 66 °FRed Oak, Nov: 50 °FRed Oak, Dec: 37 °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 °FRed Oak, Jan: 13 °FRed Oak, Feb: 16 °FRed Oak, Mar: 28 °FRed Oak, Apr: 38 °FRed Oak, May: 51 °FRed Oak, Jun: 61 °FRed Oak, Jul: 65 °FRed Oak, Aug: 63 °FRed Oak, Sep: 53 °FRed Oak, Oct: 41 °FRed Oak, Nov: 28 °FRed Oak, Dec: 18 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Chicago high323646576878838175624937
Red Oak high333851637383868578665037
Chicago low202331415161676760473625
Red Oak low131628385161656353412818

Monthly precipitation

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

ChicagoRed Oak
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 inRed Oak, Jan: 1.0 inRed Oak, Feb: 1.4 inRed Oak, Mar: 2.5 inRed Oak, Apr: 4.3 inRed Oak, May: 5.6 inRed Oak, Jun: 4.9 inRed Oak, Jul: 3.9 inRed Oak, Aug: 3.5 inRed Oak, Sep: 3.2 inRed Oak, Oct: 3.0 inRed Oak, Nov: 1.9 inRed Oak, Dec: 1.5 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Chicago2.42.12.84.54.44.03.63.83.03.32.82.4
Red Oak1.01.42.54.35.64.93.93.53.23.01.91.5

Monthly sunny days

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

ChicagoRed Oak
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 daysRed Oak, Jan: 16 daysRed Oak, Feb: 14 daysRed Oak, Mar: 16 daysRed Oak, Apr: 15 daysRed Oak, May: 15 daysRed Oak, Jun: 18 daysRed Oak, Jul: 21 daysRed Oak, Aug: 22 daysRed Oak, Sep: 22 daysRed Oak, Oct: 20 daysRed Oak, Nov: 18 daysRed Oak, Dec: 16 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Chicago101114131516202020161411
Red Oak161416151518212222201816

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

Red Oak vs another city

See the full Red Oak, IA climate profile

More Iowa 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).