Winter (December to February)
Sharp cold with highs around 2° and lows near -6°, regular rain (9 rainy days per month on average). Not an ideal time for a leisure trip.
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When to visit United States
Climate · 10-year averages
When to visit Chicago?
Best time to visit Chicago: from June to September. Month-by-month temperatures, rainfall and sunshine, based on ten years of weather data.
Best time to go
From June to September
Hottest month
July · 26°
Coldest month
February · -8°
Wettest month
July · 142 mm
Climate month by month
Bars: monthly rainfall. Lines: average highs and lows. Month color: our travel comfort index.
- JanuaryÀ éviter
-0° / -7°
- Rain
- 61 mm · 10 d
- Sunshine
- 5.0 h/day
- Humidity
- 76%
- FebruaryÀ éviter
1° / -8°
- Rain
- 64 mm · 9 d
- Sunshine
- 6.6 h/day
- Humidity
- 73%
- MarchÀ éviter
6° / -1°
- Rain
- 81 mm · 11 d
- Sunshine
- 7.8 h/day
- Humidity
- 74%
- AprilÀ éviter
12° / 4°
- Rain
- 104 mm · 14 d
- Sunshine
- 8.8 h/day
- Humidity
- 73%
- MayCorrect
18° / 10°
- Rain
- 132 mm · 13 d
- Sunshine
- 10.0 h/day
- Humidity
- 76%
- JuneTrès bien
24° / 16°
- Rain
- 128 mm · 13 d
- Sunshine
- 11.6 h/day
- Humidity
- 75%
- JulyTrès bien
26° / 19°
- Rain
- 142 mm · 12 d
- Sunshine
- 11.9 h/day
- Humidity
- 77%
- AugustTrès bien
26° / 19°
- Rain
- 112 mm · 13 d
- Sunshine
- 11.5 h/day
- Humidity
- 77%
- SeptemberIdéal
23° / 16°
- Rain
- 97 mm · 10 d
- Sunshine
- 9.6 h/day
- Humidity
- 75%
- OctoberCorrect
16° / 9°
- Rain
- 131 mm · 13 d
- Sunshine
- 7.2 h/day
- Humidity
- 74%
- NovemberMitigé
8° / 1°
- Rain
- 59 mm · 7 d
- Sunshine
- 6.1 h/day
- Humidity
- 72%
- DecemberÀ éviter
4° / -2°
- Rain
- 65 mm · 8 d
- Sunshine
- 5.0 h/day
- Humidity
- 75%
2014–2023 averages from the ERA5 reanalysis (Copernicus) via Open-Meteo. A day counts as a “rainy day” from 1 mm of rain.
Our take, season by season
Spring (March to May)
Cool weather with highs around 12° and lows near 4°, regular rain (13 rainy days per month on average). Not an ideal time for a leisure trip.
Summer (June to August)
Pleasant warmth with highs around 26° and lows near 18°, regular rain (12 rainy days per month on average). It's a great time to go.
Fall (September to November)
Cool weather with highs around 16° and lows near 9°, regular rain (10 rainy days per month on average). A decent time to go, as long as you're willing to make a few compromises.
Frequently asked questions
- When is the best time to visit Chicago?
- The best time to visit Chicago is from June to September, with highs between 23° and 26° and few rainy days.
- What is the hottest month in Chicago?
- July is the hottest month, with an average high of 26 °C.
- What is the coldest month in Chicago?
- February is the coldest month, with an average low of -8 °C.
- When does it rain the most in Chicago?
- July is the wettest month (142 mm, about 12 rainy days). The driest is November (59 mm).
- When should you avoid Chicago?
- The least favorable months are from December to April: too hot, too cold, or too rainy to make the most of your trip.
When to visit other cities · United States
The capital and the country's other major cities.
More practical info: United States
- Country guideEverything about a country on one page: time, weather, currency, plugs, emergency numbers, tipping, visas.
- WeatherTemperature, rain, wind, and UV index for every capital.
- Air qualityPollution, fine particulate matter, and ozone, with a 36-hour forecast.
- Local timeLive clock, time zone, and time difference from where you are.
- Public holidaysEvery public holiday of the year, plus the next one coming up.
- Power OutletsPlug type, voltage, and whether your devices need an adapter.
- Driving SideWhich side of the road to drive on and which license you need before renting a car.
- Emergency NumbersPolice, ambulance, and fire department numbers for every country.
- TippingHow much to tip at restaurants, in taxis, and at hotels.
- Dialing CodesHow to call a country from abroad.
- Salat TimesFajr, Dhuhr, Asr, Maghrib, Isha, and Imsak times in every capital.
- QiblaReal-time compass pointing to the Kaaba from your GPS location.
- Visa requirements from FranceDo you need a visa for United States?