Porta Potty Rental in Irmo, SC

Planning Around the Weather

DOE's Building America map puts Richland County in the Mixed-Humid climate region (IECC 2021 zone 3A, PNNL county guide). This region gets both a real summer and a real winter, so a July rental and a January rental need different planning.

Rain and Ground

Heavy rain days are frequent: about 13 days a year bring an inch or more of precipitation, out of about 45 inches in total. Soft ground is the risk: units belong on a firm, level base the service truck can reach without crossing a soggy lawn, and an ADA unit needs a route that does not turn to mud.

Heat

About 81 days a year reach 90°F or more, more than three in four U.S. places in our data, most of them in the summer months. For long rentals in the hot, humid months, ask how often units will be serviced. In the summer months, ask how often units will be pumped and restocked, and put them where they get afternoon shade.

Freezing Nights

About 47 nights a year reach 32°F or below, fewer than most U.S. places in our data, mostly between late fall and early spring. Water-carrying units need a plan from late fall into spring: give your dates when you call and ask how hand-wash water and flush tanks are kept from freezing. Snow is light, about 1 inches in an average year.

Events, Weddings and Parties

A four-hour summer event for 2,000 people needs 12 units on the PSAI event chart, or 14 to 15 with alcohol (PSAI adds 10–20%). Every cluster of restrooms needs at least 5% accessible units, rounded up, and with heavy rain this common the ADA unit needs a route that stays firm when the grass is wet.

Both seasons matter: a restroom trailer for a summer wedding needs power for its air conditioning, and one for a winter date needs heat and protected water lines. For a backyard party at a house, you can ask for a single unit; a deluxe flushable unit needs no hookups. More: event rentals in South Carolina and wedding restrooms in South Carolina.