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Chicago, IL vs San Marino, CA weather comparison

Chicago

IL

San Marino has around 102 fewer freezing nights a year.

Chicago picks up around 37 more inches of snow each winter. San Marino endures about 52 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 San Marino, CA
ChicagoMetricSan Marino
180 daysSunny daysclear or partly cloudy skies291 days
39 inPrecipitationper year14 in
132 daysWet daysrain or snow per year34 days
37 inSnowfallper year0 in
16 daysHot daysabove 90 °F68 days
102 daysFreezing nightsat or below 32 °F0 days
71%Humidityaverage relative59%
52 °FAverage temperatureyear round66 °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.

ChicagoSan Marino

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 °FSan Marino, Jan: 68 °FSan Marino, Feb: 69 °FSan Marino, Mar: 72 °FSan Marino, Apr: 75 °FSan Marino, May: 77 °FSan Marino, Jun: 82 °FSan Marino, Jul: 87 °FSan Marino, Aug: 89 °FSan Marino, Sep: 88 °FSan Marino, Oct: 82 °FSan Marino, Nov: 74 °FSan Marino, Dec: 67 °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 °FSan Marino, Jan: 46 °FSan Marino, Feb: 47 °FSan Marino, Mar: 49 °FSan Marino, Apr: 52 °FSan Marino, May: 56 °FSan Marino, Jun: 60 °FSan Marino, Jul: 64 °FSan Marino, Aug: 64 °FSan Marino, Sep: 63 °FSan Marino, Oct: 57 °FSan Marino, Nov: 50 °FSan Marino, Dec: 45 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Chicago high323646576878838175624937
San Marino high686972757782878988827467
Chicago low202331415161676760473625
San Marino low464749525660646463575045

Monthly precipitation

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

ChicagoSan Marino
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 inSan Marino, Jan: 3.3 inSan Marino, Feb: 3.5 inSan Marino, Mar: 2.2 inSan Marino, Apr: 0.9 inSan Marino, May: 0.4 inSan Marino, Jun: 0.1 inSan Marino, Jul: 0.1 inSan Marino, Aug: 0.0 inSan Marino, Sep: 0.1 inSan Marino, Oct: 0.6 inSan Marino, Nov: 0.8 inSan Marino, Dec: 2.2 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Chicago2.42.12.84.54.44.03.63.83.03.32.82.4
San Marino3.33.52.20.90.40.10.10.00.10.60.82.2

Monthly sunny days

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

ChicagoSan Marino
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 daysSan Marino, Jan: 19 daysSan Marino, Feb: 18 daysSan Marino, Mar: 21 daysSan Marino, Apr: 23 daysSan Marino, May: 24 daysSan Marino, Jun: 27 daysSan Marino, Jul: 29 daysSan Marino, Aug: 30 daysSan Marino, Sep: 28 daysSan Marino, Oct: 27 daysSan Marino, Nov: 24 daysSan Marino, Dec: 21 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Chicago101114131516202020161411
San Marino191821232427293028272421

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).