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Atherton, CA vs Chicago, IL weather comparison

Atherton

CA

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

Atherton has around 90 fewer freezing nights a year. Atherton sees rain or snow on roughly 76 fewer days each year.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Atherton, CA and Chicago, IL
AthertonMetricChicago
234 daysSunny daysclear or partly cloudy skies180 days
21 inPrecipitationper year39 in
56 daysWet daysrain or snow per year132 days
0 inSnowfallper year37 in
24 daysHot daysabove 90 °F16 days
12 daysFreezing nightsat or below 32 °F102 days
77%Humidityaverage relative71%
59 °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.

AthertonChicago

Daily highs

406080JanMarMayJulSepNovAtherton, Jan: 59 °FAtherton, Feb: 62 °FAtherton, Mar: 66 °FAtherton, Apr: 70 °FAtherton, May: 74 °FAtherton, Jun: 80 °FAtherton, Jul: 82 °FAtherton, Aug: 82 °FAtherton, Sep: 81 °FAtherton, Oct: 76 °FAtherton, Nov: 65 °FAtherton, Dec: 59 °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

204060JanMarMayJulSepNovAtherton, Jan: 40 °FAtherton, Feb: 42 °FAtherton, Mar: 44 °FAtherton, Apr: 46 °FAtherton, May: 49 °FAtherton, Jun: 53 °FAtherton, Jul: 56 °FAtherton, Aug: 55 °FAtherton, Sep: 53 °FAtherton, Oct: 49 °FAtherton, Nov: 43 °FAtherton, Dec: 39 °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
Atherton high596266707480828281766559
Chicago high323646576878838175624937
Atherton low404244464953565553494339
Chicago low202331415161676760473625

Monthly precipitation

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

AthertonChicago
0.02.04.0JanMarMayJulSepNovAtherton, Jan: 3.9 inAtherton, Feb: 4.2 inAtherton, Mar: 3.2 inAtherton, Apr: 1.6 inAtherton, May: 0.8 inAtherton, Jun: 0.2 inAtherton, Jul: 0.0 inAtherton, Aug: 0.0 inAtherton, Sep: 0.1 inAtherton, Oct: 0.9 inAtherton, Nov: 2.0 inAtherton, Dec: 3.7 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
Atherton3.94.23.21.60.80.20.00.00.10.92.03.7
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.

AthertonChicago
01020JanMarMayJulSepNovAtherton, Jan: 13 daysAtherton, Feb: 13 daysAtherton, Mar: 15 daysAtherton, Apr: 18 daysAtherton, May: 20 daysAtherton, Jun: 23 daysAtherton, Jul: 26 daysAtherton, Aug: 25 daysAtherton, Sep: 26 daysAtherton, Oct: 23 daysAtherton, Nov: 18 daysAtherton, Dec: 15 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
Atherton131315182023262526231815
Chicago101114131516202020161411

Keep comparing

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

Atherton vs another city

See the full Atherton, CA climate profile

More California 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).