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Chantilly, VA vs Chicago, IL weather comparison

Chantilly

VA

Chicago picks up around 17 more inches of snow each winter.

Chantilly 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 Chantilly, VA and Chicago, IL
ChantillyMetricChicago
205 daysSunny daysclear or partly cloudy skies180 days
42 inPrecipitationper year39 in
119 daysWet daysrain or snow per year132 days
21 inSnowfallper year37 in
30 daysHot daysabove 90 °F16 days
104 daysFreezing nightsat or below 32 °F102 days
69%Humidityaverage relative71%
56 °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.

ChantillyChicago

Daily highs

406080JanMarMayJulSepNovChantilly, Jan: 42 °FChantilly, Feb: 46 °FChantilly, Mar: 55 °FChantilly, Apr: 66 °FChantilly, May: 74 °FChantilly, Jun: 83 °FChantilly, Jul: 87 °FChantilly, Aug: 86 °FChantilly, Sep: 79 °FChantilly, Oct: 67 °FChantilly, Nov: 56 °FChantilly, Dec: 46 °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

204060JanMarMayJulSepNovChantilly, Jan: 25 °FChantilly, Feb: 26 °FChantilly, Mar: 33 °FChantilly, Apr: 43 °FChantilly, May: 53 °FChantilly, Jun: 62 °FChantilly, Jul: 67 °FChantilly, Aug: 65 °FChantilly, Sep: 58 °FChantilly, Oct: 45 °FChantilly, Nov: 35 °FChantilly, Dec: 29 °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
Chantilly high424655667483878679675646
Chicago high323646576878838175624937
Chantilly low252633435362676558453529
Chicago low202331415161676760473625

Monthly precipitation

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

ChantillyChicago
0.02.04.0JanMarMayJulSepNovChantilly, Jan: 3.0 inChantilly, Feb: 2.8 inChantilly, Mar: 3.8 inChantilly, Apr: 3.4 inChantilly, May: 3.8 inChantilly, Jun: 3.4 inChantilly, Jul: 3.9 inChantilly, Aug: 3.3 inChantilly, Sep: 4.3 inChantilly, Oct: 3.4 inChantilly, Nov: 3.0 inChantilly, Dec: 3.5 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
Chantilly3.02.83.83.43.83.43.93.34.33.43.03.5
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.

ChantillyChicago
01020JanMarMayJulSepNovChantilly, Jan: 16 daysChantilly, Feb: 15 daysChantilly, Mar: 16 daysChantilly, Apr: 16 daysChantilly, May: 16 daysChantilly, Jun: 17 daysChantilly, Jul: 19 daysChantilly, Aug: 19 daysChantilly, Sep: 18 daysChantilly, Oct: 20 daysChantilly, Nov: 18 daysChantilly, Dec: 16 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
Chantilly161516161617191918201816
Chicago101114131516202020161411

Keep comparing

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

Chantilly vs another city

See the full Chantilly, VA climate profile

More Virginia 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).