Custom Merch for Sports Teams in Riverside, CA
Merch Mob makes printed jerseys, practice shirts, and warmups and team hoodies for sports teams in Riverside, CA, at its shop in Montclair, CA, and ships them to Riverside. Riverside's under-18 share is 23%, just above the US figure of 22% (Census ACS, 2020-2024), so youth and adult teams are both likely customers, and a size run should start at youth small.
Riverside by the numbers
Riverside has 323,057 residents, up 2.4% since 2020 (Census estimates).
Riverside County has 10 sports teams and clubs with paid employees (Census County Business Patterns, 2023). That is 0.039 for every 10,000 residents, slightly below the national figure of 0.044. 60% of them employ fewer than 10 people.
That count is mostly professional and semi-professional teams with a payroll; most youth and amateur clubs are not in it.
Riverside County as a whole has 2,544,916 residents, up 5.2% since 2020. Riverside County has one sports team or club for every 254,490 residents.
- Population, 2025
- 323,057
- Since 2020
- +2.4%
- County
- Riverside County
- Sports teams and clubs in Riverside County, 2023
- 10
- Per 10,000 county residents
- 0.039 (US 0.044)
- Time zone
- Pacific
- Median age
- 33.6 (US 38.9)
- Residents under 18
- 23% (US 22%)
- Warmest month, average high
- August, 95°F
- Coldest month, average low
- December, 43°F
- Days at 90°F or hotter, a year
- 101
- Nights at 32°F or colder, a year
- 4
- Rain, a year
- 9.4 in
- USPS zone from the shop
- 2
Weather: Riverside Municipal Airport station, 3 mi from Riverside's center (NOAA 1991-2020 Climate Normals). People: Census ACS 2020-2024. Counts: CBP 2023, by county, paid-employee establishments. Population: Census, July 2025.
What Riverside's weather means for sports teams
August highs average 95°F in Riverside and some 101 days a year reach 90°F, so practice tees should be light, moisture-wicking knit rather than heavy cotton, which holds sweat. With no month averaging a high under 65°F, a warmup hoodie is mainly for late games and travel days, and a sideline cap for shade does more work. March to November is tee-and-shorts weather, with average highs of 70°F or more, so most of a season's practice kit is short-sleeve and one long-sleeve layer covers the rest. About 22 days a year hit 100°F or more, which moves practice to early morning or evening and makes light colors and breathable fabric part of the kit decision. Six or more months a year bring under half an inch of rain, so outdoor seasons see few washouts and sun cover matters more: caps for players and coaches and a light long sleeve for tournament days.
| Month in Riverside | Average high | Average low | Rain (in) | What the team wears |
|---|---|---|---|---|
| January | 68°F | 44°F | 2.3 | Tees plus warmup quarter-zips |
| February | 68°F | 45°F | 2.4 | Tees plus warmup quarter-zips |
| March | 72°F | 47°F | 1.2 | Practice tees and game jerseys |
| April | 76°F | 50°F | 0.6 | Practice tees and game jerseys |
| May | 80°F | 55°F | 0.2 | Practice tees and game jerseys |
| June | 87°F | 59°F | 0 | Wicking practice tees and caps |
| July | 93°F | 64°F | 0.1 | Wicking practice tees and caps |
| August | 95°F | 65°F | 0 | Wicking practice tees and caps |
| September | 91°F | 62°F | 0.1 | Wicking practice tees and caps |
| October | 83°F | 55°F | 0.3 | Practice tees and game jerseys |
| November | 75°F | 47°F | 0.6 | Practice tees and game jerseys |
| December | 67°F | 43°F | 1.5 | Tees plus warmup quarter-zips |
Made in So Cal, shipped to Riverside.
Riverside shares the shop's Southern California region; orders ship from there.
Riverside is about 19 miles from Merch Mob's shop in Montclair, CA, a straight-line distance. From the shop's ZIP code, Riverside is USPS zone 2. Riverside shares the shop's Pacific time zone.
From the production floor
Merch Mob production in Southern California.
Ordering from Riverside
When do teams in Riverside need warmup gear?
Mainly after dark in winter. Even December, Riverside's coolest month, keeps afternoon highs near 67°F, but winter nights are another matter, so plan one warmup hoodie per player for late games and a jacket for each coach.
More for Riverside
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