Skip to content
VSWeather

Aurora, CO vs Chicago, IL weather comparison

Aurora

CO

Aurora endures about 28 more days above 90 °F each year.

Aurora enjoys about 93 more sunny days a year than Chicago. Aurora sees rain or snow on roughly 53 fewer days each year.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Aurora, CO and Chicago, IL
AuroraMetricChicago
273 daysSunny daysclear or partly cloudy skies180 days
15 inPrecipitationper year39 in
79 daysWet daysrain or snow per year132 days
41 inSnowfallper year37 in
44 daysHot daysabove 90 °F16 days
162 daysFreezing nightsat or below 32 °F102 days
51%Humidityaverage relative71%
51 °FAverage temperatureyear round52 °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.

AuroraChicago

Daily highs

406080JanMarMayJulSepNovAurora, Jan: 46 °FAurora, Feb: 48 °FAurora, Mar: 56 °FAurora, Apr: 62 °FAurora, May: 72 °FAurora, Jun: 84 °FAurora, Jul: 90 °FAurora, Aug: 88 °FAurora, Sep: 80 °FAurora, Oct: 67 °FAurora, Nov: 55 °FAurora, Dec: 46 °FChicago, 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 °F

Daily lows

204060JanMarMayJulSepNovAurora, Jan: 18 °FAurora, Feb: 19 °FAurora, Mar: 27 °FAurora, Apr: 33 °FAurora, May: 42 °FAurora, Jun: 52 °FAurora, Jul: 58 °FAurora, Aug: 56 °FAurora, Sep: 48 °FAurora, Oct: 35 °FAurora, Nov: 25 °FAurora, Dec: 18 °FChicago, 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 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Aurora high464856627284908880675546
Chicago high323646576878838175624937
Aurora low181927334252585648352518
Chicago low202331415161676760473625

Monthly precipitation

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

AuroraChicago
0.02.04.0JanMarMayJulSepNovAurora, Jan: 0.5 inAurora, Feb: 0.5 inAurora, Mar: 1.4 inAurora, Apr: 2.1 inAurora, May: 2.5 inAurora, Jun: 1.6 inAurora, Jul: 1.5 inAurora, Aug: 1.4 inAurora, Sep: 1.1 inAurora, Oct: 1.2 inAurora, Nov: 0.8 inAurora, Dec: 0.5 inChicago, 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 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Aurora0.50.51.42.12.51.61.51.41.11.20.80.5
Chicago2.42.12.84.54.44.03.63.83.03.32.82.4

Monthly sunny days

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

AuroraChicago
01020JanMarMayJulSepNovAurora, Jan: 23 daysAurora, Feb: 20 daysAurora, Mar: 22 daysAurora, Apr: 19 daysAurora, May: 20 daysAurora, Jun: 24 daysAurora, Jul: 25 daysAurora, Aug: 24 daysAurora, Sep: 25 daysAurora, Oct: 24 daysAurora, Nov: 23 daysAurora, Dec: 24 daysChicago, 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 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Aurora232022192024252425242324
Chicago101114131516202020161411

Keep comparing

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

Aurora vs another city

See the full Aurora, CO climate profile

More Colorado cities

Chicago vs another city

See the full Chicago, IL climate profile

More Illinois 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).