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Chicago, IL vs Oyster Bay, NY weather comparison

Chicago

IL

Chicago picks up around 14 more inches of snow each winter.

Oyster Bay enjoys about 25 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 Oyster Bay, NY
ChicagoMetricOyster Bay
180 daysSunny daysclear or partly cloudy skies205 days
39 inPrecipitationper year47 in
132 daysWet daysrain or snow per year124 days
37 inSnowfallper year24 in
16 daysHot daysabove 90 °F12 days
102 daysFreezing nightsat or below 32 °F86 days
71%Humidityaverage relative74%
52 °FAverage temperatureyear round54 °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.

ChicagoOyster Bay

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 °FOyster Bay, Jan: 39 °FOyster Bay, Feb: 42 °FOyster Bay, Mar: 49 °FOyster Bay, Apr: 60 °FOyster Bay, May: 70 °FOyster Bay, Jun: 79 °FOyster Bay, Jul: 84 °FOyster Bay, Aug: 82 °FOyster Bay, Sep: 75 °FOyster Bay, Oct: 64 °FOyster Bay, Nov: 54 °FOyster Bay, Dec: 44 °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 °FOyster Bay, Jan: 26 °FOyster Bay, Feb: 26 °FOyster Bay, Mar: 33 °FOyster Bay, Apr: 42 °FOyster Bay, May: 51 °FOyster Bay, Jun: 61 °FOyster Bay, Jul: 67 °FOyster Bay, Aug: 66 °FOyster Bay, Sep: 59 °FOyster Bay, Oct: 49 °FOyster Bay, Nov: 39 °FOyster Bay, Dec: 31 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Chicago high323646576878838175624937
Oyster Bay high394249607079848275645444
Chicago low202331415161676760473625
Oyster Bay low262633425161676659493931

Monthly precipitation

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

ChicagoOyster Bay
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 inOyster Bay, Jan: 3.8 inOyster Bay, Feb: 3.5 inOyster Bay, Mar: 4.6 inOyster Bay, Apr: 3.9 inOyster Bay, May: 3.6 inOyster Bay, Jun: 3.7 inOyster Bay, Jul: 3.5 inOyster Bay, Aug: 4.0 inOyster Bay, Sep: 3.8 inOyster Bay, Oct: 4.4 inOyster Bay, Nov: 3.6 inOyster Bay, Dec: 4.7 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Chicago2.42.12.84.54.44.03.63.83.03.32.82.4
Oyster Bay3.83.54.63.93.63.73.54.03.84.43.64.7

Monthly sunny days

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

ChicagoOyster Bay
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 daysOyster Bay, Jan: 17 daysOyster Bay, Feb: 16 daysOyster Bay, Mar: 17 daysOyster Bay, Apr: 15 daysOyster Bay, May: 15 daysOyster Bay, Jun: 16 daysOyster Bay, Jul: 19 daysOyster Bay, Aug: 19 daysOyster Bay, Sep: 18 daysOyster Bay, Oct: 19 daysOyster Bay, Nov: 17 daysOyster Bay, Dec: 17 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Chicago101114131516202020161411
Oyster Bay171617151516191918191717

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).