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Atlantic, IA vs Chicago, IL weather comparison

Atlantic

IA

Chicago has around 50 fewer freezing nights a year.

Chicago picks up around 10 more inches of snow each winter. Atlantic enjoys about 30 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 Atlantic, IA and Chicago, IL
AtlanticMetricChicago
210 daysSunny daysclear or partly cloudy skies180 days
35 inPrecipitationper year39 in
110 daysWet daysrain or snow per year132 days
27 inSnowfallper year37 in
22 daysHot daysabove 90 °F16 days
152 daysFreezing nightsat or below 32 °F102 days
69%Humidityaverage relative71%
49 °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.

AtlanticChicago

Daily highs

406080JanMarMayJulSepNovAtlantic, Jan: 31 °FAtlantic, Feb: 36 °FAtlantic, Mar: 50 °FAtlantic, Apr: 63 °FAtlantic, May: 73 °FAtlantic, Jun: 83 °FAtlantic, Jul: 86 °FAtlantic, Aug: 84 °FAtlantic, Sep: 78 °FAtlantic, Oct: 65 °FAtlantic, Nov: 49 °FAtlantic, Dec: 36 °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

204060JanMarMayJulSepNovAtlantic, Jan: 10 °FAtlantic, Feb: 14 °FAtlantic, Mar: 25 °FAtlantic, Apr: 36 °FAtlantic, May: 49 °FAtlantic, Jun: 60 °FAtlantic, Jul: 64 °FAtlantic, Aug: 61 °FAtlantic, Sep: 51 °FAtlantic, Oct: 38 °FAtlantic, Nov: 25 °FAtlantic, Dec: 15 °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
Atlantic high313650637383868478654936
Chicago high323646576878838175624937
Atlantic low101425364960646151382515
Chicago low202331415161676760473625

Monthly precipitation

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

AtlanticChicago
0.02.04.0JanMarMayJulSepNovAtlantic, Jan: 1.0 inAtlantic, Feb: 1.4 inAtlantic, Mar: 2.4 inAtlantic, Apr: 4.4 inAtlantic, May: 5.2 inAtlantic, Jun: 5.1 inAtlantic, Jul: 3.4 inAtlantic, Aug: 3.6 inAtlantic, Sep: 3.0 inAtlantic, Oct: 2.8 inAtlantic, Nov: 1.8 inAtlantic, Dec: 1.5 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
Atlantic1.01.42.44.45.25.13.43.63.02.81.81.5
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.

AtlanticChicago
01020JanMarMayJulSepNovAtlantic, Jan: 15 daysAtlantic, Feb: 14 daysAtlantic, Mar: 16 daysAtlantic, Apr: 15 daysAtlantic, May: 16 daysAtlantic, Jun: 18 daysAtlantic, Jul: 21 daysAtlantic, Aug: 21 daysAtlantic, Sep: 22 daysAtlantic, Oct: 20 daysAtlantic, Nov: 17 daysAtlantic, Dec: 16 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
Atlantic151416151618212122201716
Chicago101114131516202020161411

Keep comparing

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

Atlantic vs another city

See the full Atlantic, IA climate profile

More Iowa 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).