Chicago weather in January
Monthly temperatures, rain, humidity, what to wear and what to pack — 2024–2025 historical average
Chicago January weather at a glance
In January, Chicago averages -4.5°C, with typical highs of -1.3°C and lows of -7.7°C. The historical average is 11 wet days and 72% humidity.
Chicago January temperature & humidity
Chicago January rain & wet days
Pack a compact umbrella. Keep an indoor stop available between outdoor activities.
What to wear in Chicago in January
Pack a warm insulated coat, thermal layers, gloves and a scarf. Showers are possible, so a compact umbrella is useful.
- DaytimeWarm coat and layered tops · average high -1.3°C
- Morning & eveningInsulating coat, scarf and gloves · average low -7.7°C
- FootwearComfortable walking shoes; quick-dry footwear for rainy days.
Packing essentials
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Chicago January sunrise & sunset times
2026 January · Local time (America/Chicago)
| Date | Sunrise | Sunset | Daylight |
|---|---|---|---|
| 2026-01-01 | 07:18 | 16:30 | 9h 12m |
| 2026-01-15 | 07:16 | 16:45 | 9h 29m |
| 2026-01-31 | 07:04 | 17:05 | 10h 1m |
For sunset photos, arrive before the listed sunset time. Clouds, mountains and buildings can change when the sun becomes visible or disappears.
Calculated for the city coordinates with daylight saving applied. SunCalc · tz-lookup
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Best months to visit Chicago
Bar height shows our simple weather-comfort score, not a safety rating; colour shows temperature.
January weather by year
Daily weather in 2025
Daily high and low temperatures; blue labels show precipitation
Frequently asked questions
What is Chicago weather like in January?
In January, Chicago averages -4.5°C, with typical highs of -1.3°C and lows of -7.7°C. The historical average is 11 wet days and 72% humidity. Our weather-comfort rating for this month is challenging.
Does it rain a lot in Chicago in January?
There are about 11 wet days in January. A compact umbrella is still useful.
What should I wear in Chicago in January?
Pack a warm insulated coat, thermal layers, gloves and a scarf. Showers are possible, so a compact umbrella is useful.
What are the best months to visit Chicago?
Recent weather data rates May, June, August, September among the more comfortable months.
Where can I check Chicago weather in January in real time?
Check local webcams for the view right now and a local weather service for today’s forecast. Monthly temperatures here are historical averages.
What time are sunrise and sunset in Chicago in January?
On 2026-01-15, calculated sunrise is 07:16 and sunset is 16:45 in local time (America/Chicago). Times vary by date and terrain.
Chicago weather by month
More Americas destinations in January
Open-Meteo (CC BY 4.0) · 2024–2025 historical data, aggregated and rounded by this site. Not a forecast or long-term climate normal. Calculation method and limitations