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Chicago, IL vs Green River, WY weather comparison

Chicago

IL

Chicago has around 93 fewer freezing nights a year.

Green River sees rain or snow on roughly 49 fewer days each year. Green River enjoys about 65 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 Green River, WY
ChicagoMetricGreen River
180 daysSunny daysclear or partly cloudy skies245 days
39 inPrecipitationper year10 in
132 daysWet daysrain or snow per year83 days
37 inSnowfallper year38 in
16 daysHot daysabove 90 °F30 days
102 daysFreezing nightsat or below 32 °F195 days
71%Humidityaverage relative57%
52 °FAverage temperatureyear round44 °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.

ChicagoGreen River

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 °FGreen River, Jan: 31 °FGreen River, Feb: 36 °FGreen River, Mar: 47 °FGreen River, Apr: 56 °FGreen River, May: 66 °FGreen River, Jun: 78 °FGreen River, Jul: 87 °FGreen River, Aug: 85 °FGreen River, Sep: 76 °FGreen River, Oct: 61 °FGreen River, Nov: 44 °FGreen River, Dec: 32 °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 °FGreen River, Jan: 8 °FGreen River, Feb: 13 °FGreen River, Mar: 22 °FGreen River, Apr: 29 °FGreen River, May: 38 °FGreen River, Jun: 46 °FGreen River, Jul: 53 °FGreen River, Aug: 51 °FGreen River, Sep: 41 °FGreen River, Oct: 30 °FGreen River, Nov: 19 °FGreen River, Dec: 10 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Chicago high323646576878838175624937
Green River high313647566678878576614432
Chicago low202331415161676760473625
Green River low81322293846535141301910

Monthly precipitation

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

ChicagoGreen River
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 inGreen River, Jan: 0.7 inGreen River, Feb: 0.7 inGreen River, Mar: 1.1 inGreen River, Apr: 1.5 inGreen River, May: 1.5 inGreen River, Jun: 0.7 inGreen River, Jul: 0.4 inGreen River, Aug: 0.4 inGreen River, Sep: 0.8 inGreen River, Oct: 1.0 inGreen River, Nov: 0.8 inGreen River, Dec: 0.7 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Chicago2.42.12.84.54.44.03.63.83.03.32.82.4
Green River0.70.71.11.51.50.70.40.40.81.00.80.7

Monthly sunny days

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

ChicagoGreen River
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 daysGreen River, Jan: 16 daysGreen River, Feb: 15 daysGreen River, Mar: 19 daysGreen River, Apr: 17 daysGreen River, May: 20 daysGreen River, Jun: 24 daysGreen River, Jul: 27 daysGreen River, Aug: 26 daysGreen River, Sep: 25 daysGreen River, Oct: 23 daysGreen River, Nov: 18 daysGreen River, Dec: 15 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Chicago101114131516202020161411
Green River161519172024272625231815

Keep comparing

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

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).