Custom Merch for Events in Chicago, IL
Merch Mob makes attendee and souvenir tees, staff, crew and security shirts, and volunteer shirts for events in Chicago, IL, at its shop in Montclair, CA, and ships them to Chicago. The 18-to-34 share is 29% in Chicago, against 23% nationally and 23% across Illinois (Census ACS, 2020-2024), so design attendee merch to be worn again, with strong art rather than a sponsor list on the front.
Chicago by the numbers
Chicago's population has held steady since 2020, at 2,731,585 residents (Census estimates).
Cook County has 151 event promoters (performing arts, sports and similar events) with paid employees (Census County Business Patterns, 2023). That is 0.29 for every 10,000 residents, slightly above the national figure of 0.27. 73% of them employ fewer than 10 people. The count is about where it was in 2018 (151).
That counts promoters with a payroll; one-off events run by volunteers or venues are not in it.
Cook County as a whole has 5,194,625 residents, down 1.6% since 2020. Cook County has one event promoter for every 34,400 residents.
- Population, 2025
- 2,731,585
- Since 2020
- −0.6%
- County
- Cook County
- Event promoters (performing arts, sports and similar events) in Cook County, 2023
- 151
- Per 10,000 county residents
- 0.29 (US 0.27)
- Time zone
- Central
- Median age
- 35.8 (US 38.9)
- Residents aged 18 to 34
- 29% (US 23%)
- Warmest month, average high
- July, 85°F
- Coldest month, average low
- January, 19°F
- Days at 90°F or hotter, a year
- 20
- Nights at 32°F or colder, a year
- 106
- Rain and melted snow, a year
- 34 in
- Snow, a year
- 39 in
- USPS zone from the shop
- 7
Weather: Chicago Midway Airport station, 5 mi from Chicago's center (NOAA 1991-2020 Climate Normals); snow from the Chicago Midway Airport 3SW station. People: Census ACS 2020-2024. Counts: CBP 2023, by county, paid-employee establishments. Population: Census, July 2025.
What Chicago's weather means for events
July peaks at an average high of 85°F, so summer events from May to September are true tee weather, and the attendee run can lead with short sleeves and a cap. Anything scheduled for December to February meets average highs under 45°F, so winter events either move indoors or call for fleece, beanies and staff jackets instead of tees. From October, average highs drop under 65°F, so fall events from then on should stock hoodies at the booth and put staff in long sleeves for early load-ins and late breakdowns. Plan a snow backup for winter events, since about 39 inches fall in a typical year, and set a weather-call deadline that staff and vendors know in advance. Cold nights are common, with the low at 32°F or below on about 106 nights a year, so an event that runs into the evening needs a warm staff layer for the last hours, and beanies belong next to the hoodies on the table.
| Month in Chicago | Average high | Average low | Rain and melted snow (in) | What staff and the booth need |
|---|---|---|---|---|
| January | 33°F | 19°F | 1.5 | Fleece, beanies and staff jackets |
| February | 37°F | 23°F | 1.5 | Fleece, beanies and staff jackets |
| March | 48°F | 32°F | 1.9 | Booth hoodies and staff long sleeves |
| April | 60°F | 41°F | 3.6 | Booth hoodies and staff long sleeves |
| May | 71°F | 52°F | 4.1 | Attendee tees and bright staff shirts |
| June | 81°F | 62°F | 4 | Attendee tees and bright staff shirts |
| July | 85°F | 68°F | 3.6 | Wicking staff tees and caps |
| August | 83°F | 66°F | 4 | Attendee tees and bright staff shirts |
| September | 76°F | 59°F | 2.8 | Attendee tees and bright staff shirts |
| October | 63°F | 47°F | 3.5 | Booth hoodies and staff long sleeves |
| November | 49°F | 35°F | 2.4 | Booth hoodies and staff long sleeves |
| December | 38°F | 25°F | 1.8 | Fleece, beanies and staff jackets |
Made in So Cal, shipped to Chicago.
Orders ship to Chicago from the shop; there is no office or pickup point in Illinois.
Chicago is about 1,711 miles from Merch Mob's shop in Montclair, CA, a straight-line distance. From the shop's ZIP code, Chicago is USPS zone 7. Chicago is on Central time, 2 hours ahead of the shop's Pacific time.
From the production floor
Merch Mob production in Southern California.
Ordering from Chicago
Which months need hoodies at an outdoor event in Chicago?
Most of the year: average highs in Chicago stay under 65°F from October to April, so plan hoodies for staff and the booth then, and add them to summer events that run past sunset.
More for Chicago
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