Avg High
Chicago in May
Verdict
In Chicago, May has a distinct spring feel. As the season moves along, temperatures are climbing noticeably. You can usually expect a mild month that feels variable day to day. It often has a mild but frequently damp, typical of changeable seasons feel, especially for outdoor plans.
Well suited to visitors who prefer a steady feel over dramatic shifts. Wind can make exposed areas feel cooler and more blustery.
Avg Low
Rain
Daylight
15h
What to expect
- Temperature feel - Easygoing temperatures with a noticeable cool-down after sunset. Breezes and shade can make it feel cooler.
- Rain pattern - Rain is a constant possibility. Expect damp surfaces and slick paths. Rain can be part of the daily rhythm.
- Midday sun - Sun protection matters. Cloud cover doesn't always mean low UV, so still protect your skin. Shade breaks feel genuinely worthwhile.
- Wind feel - Often breezy, and expect sharp gusts that can change plans in exposed areas. Sheltered streets can feel fine, but open areas feel very different.
May in context
How it compares to the rest of the year in Chicago.
Hottest (avg)
#5 / 12
Wettest (avg)
#1 / 12
Daylight Hours
#3 / 12
Windiest (avg)
#8 / 12
Highest UV
#3 / 12
Most Humid
#4 / 12
Temperature
- Daytime high
-
- Nighttime low
-
- Feels like (avg)
-
Sunshine
- Daylight
- 14.6 hours
- UV index (max)
- 8
- Typical sun hours
- 04:29 – 19:03
Rain & Snow
- Total
-
- Rainy days
- 15
- Cloud cover
- 62%
- Snowfall
-
Humidity & Wind
- Humidity (avg)
- 73%
- Wind (avg)
-
- Wind (max gusts)
-
Frequently asked questions
Is May a good time to visit Chicago?
Typical May days in Chicago reach highs of 19°C (66°F) with nights around 11°C (52°F). It usually feels mild by day and cool after dark. It is among the wetter months, so it is wise to have some indoor backup plans or flexible activities.
What are temperatures like in May?
Daytime temperatures in May typically peak near 19°C (66°F), while nights drop to around 11°C (52°F). Expect mild afternoons and cool evenings.
How much does it rain in May?
Rainfall in May averages 117 mm (4.6 in) across roughly 15 days. Overall it is a very wet time of year, so a light rain jacket and waterproof shoes are very handy.
How many hours of daylight are there in May?
You can expect about 15 hours of daylight in May. Sunrise is typically around 04:29 and sunset near 19:03. You get long days with comfortable amounts of daylight.
How strong is the sun in May?
UV levels are often high (around 8). Regular sunscreen and a hat are recommended.
Is it windy in May?
In May, average wind speeds are around 16 km/h (10 mph), with gusts on the windiest days reaching about 59 km/h (37 mph). On the ground, it is it can feel quite windy at times, particularly when weather systems move through.