Custom Merch for Gyms in Boston, MA
Merch Mob makes member tees, coach and staff apparel, and challenge and competition shirts for gyms in Boston, MA, at its shop in Montclair, CA, and ships them to Boston. In Boston, 38% of residents are 18 to 34, far above the national 23% (Census ACS, 2020-2024), a crowd that wears a gym tee around town, so cropped cuts and a second colorway can earn their place.
Boston by the numbers
Boston's population has held steady since 2020, at 672,973 residents (Census estimates).
Suffolk County has 128 fitness and recreational sports centers with paid employees (Census County Business Patterns, 2023). That is 1.6 for every 10,000 residents, above the national figure of 1.2. 46% of them employ fewer than 10 people; the rest are larger operations. The count is down 6% from 136 in 2018.
That Census category covers gyms and studios along with other recreational sports facilities.
Suffolk County as a whole has 791,891 residents, down 1.1% since 2020. Suffolk County has one fitness or recreational sports center for every 6,190 residents.
- Population, 2025
- 672,973
- Since 2020
- −0.8%
- County
- Suffolk County
- Fitness and recreational sports centers in Suffolk County, 2023
- 128
- Per 10,000 county residents
- 1.6 (US 1.2)
- Time zone
- Eastern
- Median age
- 33.3 (US 38.9)
- Residents aged 18 to 34
- 38% (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
- 121
- Rain and melted snow, a year
- 44 in
- Snow, a year
- 49 in
- USPS zone from the shop
- 8
Weather: Jamaica Plain station, 2 mi from Boston's center (NOAA 1991-2020 Climate Normals); rain and snow from the Boston station. People: Census ACS 2020-2024. Counts: CBP 2023, by county, paid-employee establishments. Population: Census, July 2025.
What Boston's weather means for gyms
The coldest stretch, December to February, keeps average highs under 45°F, but even January averages a high of 37°F, above freezing, so a midweight hoodie handles most winter days and a heavyweight one is the premium option. Tank weather is brief, with average highs of 70°F or more only from June to September, so order summer pieces in a smaller run timed to land at its start. Wet weather adds up to about 44 inches of rain and melted snow a year, which keeps a lot of training indoors, so a long-sleeve tee sells steadily between the fleece and tank seasons. With about 49 inches of snow in a typical year, members arrive in boots and coats, and a hoodie roomy enough to pull over training gear is the piece they reach for on the way out. Around 121 nights a year drop to freezing or below, so from late fall the walk to the car decides what members buy: crewnecks, beanies and a hoodie that goes on over a training top.
| Month in Boston | Average high | Average low | Rain and melted snow (in) | What members train in |
|---|---|---|---|---|
| January | 37°F | 19°F | 3.4 | Hoodies, crewnecks and beanies |
| February | 40°F | 21°F | 3.2 | Hoodies, crewnecks and beanies |
| March | 47°F | 28°F | 4.2 | Long sleeves and hoodies |
| April | 59°F | 38°F | 3.6 | Long sleeves and hoodies |
| May | 69°F | 48°F | 3.3 | Tees and light quarter-zips |
| June | 79°F | 58°F | 3.9 | Member tees and tanks |
| July | 85°F | 64°F | 3.3 | Tanks and performance tees |
| August | 83°F | 63°F | 3.2 | Member tees and tanks |
| September | 76°F | 55°F | 3.6 | Member tees and tanks |
| October | 64°F | 43°F | 4 | Long sleeves and hoodies |
| November | 53°F | 34°F | 3.7 | Long sleeves and hoodies |
| December | 42°F | 26°F | 4.3 | Hoodies, crewnecks and beanies |
Made in So Cal, shipped to Boston.
Orders ship to Boston from the shop; there is no office or pickup point in Massachusetts.
Boston is about 2,562 miles from Merch Mob's shop in Montclair, CA, a straight-line distance. From the shop's ZIP code, Boston is USPS zone 8. Boston is on Eastern time, 3 hours ahead of the shop's Pacific time.
From the production floor
Merch Mob production in Southern California.
Ordering from Boston
When should a gym in Boston stock hoodies?
Early. Average highs in Boston drop under 65°F by October and stay there until April, and snow keeps fleece and beanies selling through that whole stretch.
More for Boston
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