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Chicago, IL vs Tucson, AZ weather comparison

Chicago

IL

Tucson has around 93 fewer freezing nights a year.

Tucson endures about 139 more days above 90 °F each year. Chicago picks up around 32 more inches of snow each winter.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Chicago, IL and Tucson, AZ
ChicagoMetricTucson
180 daysSunny daysclear or partly cloudy skies302 days
39 inPrecipitationper year11 in
132 daysWet daysrain or snow per year47 days
37 inSnowfallper year5 in
16 daysHot daysabove 90 °F155 days
102 daysFreezing nightsat or below 32 °F9 days
71%Humidityaverage relative37%
52 °FAverage temperatureyear round71 °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.

ChicagoTucson

Daily highs

406080100JanMarMayJulSepNovChicago, 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 °FTucson, Jan: 66 °FTucson, Feb: 69 °FTucson, Mar: 75 °FTucson, Apr: 83 °FTucson, May: 91 °FTucson, Jun: 101 °FTucson, Jul: 100 °FTucson, Aug: 98 °FTucson, Sep: 95 °FTucson, Oct: 86 °FTucson, Nov: 75 °FTucson, Dec: 65 °F

Daily lows

20406080JanMarMayJulSepNovChicago, 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 °FTucson, Jan: 41 °FTucson, Feb: 44 °FTucson, Mar: 49 °FTucson, Apr: 54 °FTucson, May: 63 °FTucson, Jun: 72 °FTucson, Jul: 76 °FTucson, Aug: 75 °FTucson, Sep: 70 °FTucson, Oct: 59 °FTucson, Nov: 48 °FTucson, Dec: 41 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Chicago high323646576878838175624937
Tucson high66697583911011009895867565
Chicago low202331415161676760473625
Tucson low414449546372767570594841

Monthly precipitation

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

ChicagoTucson
0.02.04.0JanMarMayJulSepNovChicago, 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 inTucson, Jan: 1.3 inTucson, Feb: 1.3 inTucson, Mar: 0.8 inTucson, Apr: 0.3 inTucson, May: 0.1 inTucson, Jun: 0.2 inTucson, Jul: 1.5 inTucson, Aug: 1.5 inTucson, Sep: 1.0 inTucson, Oct: 0.6 inTucson, Nov: 0.7 inTucson, Dec: 1.3 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Chicago2.42.12.84.54.44.03.63.83.03.32.82.4
Tucson1.31.30.80.30.10.21.51.51.00.60.71.3

Monthly sunny days

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

ChicagoTucson
0102030JanMarMayJulSepNovChicago, 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 daysTucson, Jan: 23 daysTucson, Feb: 21 daysTucson, Mar: 25 daysTucson, Apr: 27 daysTucson, May: 28 daysTucson, Jun: 28 daysTucson, Jul: 22 daysTucson, Aug: 24 daysTucson, Sep: 27 daysTucson, Oct: 28 daysTucson, Nov: 25 daysTucson, Dec: 24 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Chicago101114131516202020161411
Tucson232125272828222427282524

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

Tucson vs another city

See the full Tucson, AZ climate profile

More Arizona 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).