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Chicago, IL vs Key Largo, FL weather comparison

Chicago

IL

Chicago picks up around 37 more inches of snow each winter.

Key Largo has around 102 fewer freezing nights a year. Key Largo endures about 31 more days above 90 °F each year.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Chicago, IL and Key Largo, FL
ChicagoMetricKey Largo
180 daysSunny daysclear or partly cloudy skies241 days
39 inPrecipitationper year33 in
132 daysWet daysrain or snow per year118 days
37 inSnowfallper year0 in
16 daysHot daysabove 90 °F47 days
102 daysFreezing nightsat or below 32 °F0 days
71%Humidityaverage relative77%
52 °FAverage temperatureyear round78 °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.

ChicagoKey Largo

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 °FKey Largo, Jan: 76 °FKey Largo, Feb: 78 °FKey Largo, Mar: 80 °FKey Largo, Apr: 83 °FKey Largo, May: 85 °FKey Largo, Jun: 88 °FKey Largo, Jul: 90 °FKey Largo, Aug: 90 °FKey Largo, Sep: 89 °FKey Largo, Oct: 86 °FKey Largo, Nov: 81 °FKey Largo, Dec: 78 °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 °FKey Largo, Jan: 63 °FKey Largo, Feb: 65 °FKey Largo, Mar: 67 °FKey Largo, Apr: 71 °FKey Largo, May: 74 °FKey Largo, Jun: 77 °FKey Largo, Jul: 79 °FKey Largo, Aug: 79 °FKey Largo, Sep: 78 °FKey Largo, Oct: 75 °FKey Largo, Nov: 70 °FKey Largo, Dec: 66 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Chicago high323646576878838175624937
Key Largo high767880838588909089868178
Chicago low202331415161676760473625
Key Largo low636567717477797978757066

Monthly precipitation

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

ChicagoKey Largo
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 inKey Largo, Jan: 1.4 inKey Largo, Feb: 1.3 inKey Largo, Mar: 1.3 inKey Largo, Apr: 1.5 inKey Largo, May: 3.0 inKey Largo, Jun: 4.5 inKey Largo, Jul: 2.9 inKey Largo, Aug: 4.3 inKey Largo, Sep: 5.2 inKey Largo, Oct: 4.4 inKey Largo, Nov: 1.8 inKey Largo, 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
Key Largo1.41.31.31.53.04.52.94.35.24.41.81.3

Monthly sunny days

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

ChicagoKey Largo
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 daysKey Largo, Jan: 22 daysKey Largo, Feb: 23 daysKey Largo, Mar: 26 daysKey Largo, Apr: 24 daysKey Largo, May: 24 daysKey Largo, Jun: 14 daysKey Largo, Jul: 16 daysKey Largo, Aug: 16 daysKey Largo, Sep: 13 daysKey Largo, Oct: 19 daysKey Largo, Nov: 23 daysKey Largo, Dec: 23 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Chicago101114131516202020161411
Key Largo222326242414161613192323

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

Key Largo vs another city

See the full Key Largo, FL climate profile

More Florida 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).