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Charter Oak, CA vs Chicago, IL weather comparison

Charter Oak

CA

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

Charter Oak has around 99 fewer freezing nights a year. Charter Oak endures about 56 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 Charter Oak, CA and Chicago, IL
Charter OakMetricChicago
290 daysSunny daysclear or partly cloudy skies180 days
16 inPrecipitationper year39 in
38 daysWet daysrain or snow per year132 days
0 inSnowfallper year37 in
72 daysHot daysabove 90 °F16 days
3 daysFreezing nightsat or below 32 °F102 days
60%Humidityaverage relative71%
65 °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.

Charter OakChicago

Daily highs

406080JanMarMayJulSepNovCharter Oak, Jan: 68 °FCharter Oak, Feb: 68 °FCharter Oak, Mar: 72 °FCharter Oak, Apr: 76 °FCharter Oak, May: 78 °FCharter Oak, Jun: 84 °FCharter Oak, Jul: 90 °FCharter Oak, Aug: 92 °FCharter Oak, Sep: 89 °FCharter Oak, Oct: 81 °FCharter Oak, Nov: 74 °FCharter Oak, Dec: 67 °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

204060JanMarMayJulSepNovCharter Oak, Jan: 43 °FCharter Oak, Feb: 45 °FCharter Oak, Mar: 47 °FCharter Oak, Apr: 50 °FCharter Oak, May: 55 °FCharter Oak, Jun: 58 °FCharter Oak, Jul: 63 °FCharter Oak, Aug: 63 °FCharter Oak, Sep: 61 °FCharter Oak, Oct: 54 °FCharter Oak, Nov: 47 °FCharter Oak, Dec: 42 °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
Charter Oak high686872767884909289817467
Chicago high323646576878838175624937
Charter Oak low434547505558636361544742
Chicago low202331415161676760473625

Monthly precipitation

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

Charter OakChicago
0.02.04.0JanMarMayJulSepNovCharter Oak, Jan: 3.6 inCharter Oak, Feb: 4.0 inCharter Oak, Mar: 2.4 inCharter Oak, Apr: 1.0 inCharter Oak, May: 0.4 inCharter Oak, Jun: 0.1 inCharter Oak, Jul: 0.1 inCharter Oak, Aug: 0.0 inCharter Oak, Sep: 0.2 inCharter Oak, Oct: 0.7 inCharter Oak, Nov: 1.0 inCharter Oak, Dec: 2.4 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
Charter Oak3.64.02.41.00.40.10.10.00.20.71.02.4
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.

Charter OakChicago
0102030JanMarMayJulSepNovCharter Oak, Jan: 19 daysCharter Oak, Feb: 17 daysCharter Oak, Mar: 20 daysCharter Oak, Apr: 23 daysCharter Oak, May: 25 daysCharter Oak, Jun: 28 daysCharter Oak, Jul: 29 daysCharter Oak, Aug: 30 daysCharter Oak, Sep: 29 daysCharter Oak, Oct: 27 daysCharter Oak, Nov: 24 daysCharter Oak, Dec: 21 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
Charter Oak191720232528293029272421
Chicago101114131516202020161411

Keep comparing

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

Charter Oak vs another city

See the full Charter Oak, 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).