Porta Potty Rental in Salida, CA

Planning Around the Weather

DOE's Building America map puts Stanislaus County in the Hot-Dry climate region (IECC 2021 zone 3B, PNNL county guide). This region combines hot summers with low humidity: sun, dust and water supply are the usual planning issues, more than rain.

Dry, Windy Sites

Only about 13 inches of precipitation falls in an average year, in the driest tenth of U.S. places in our data. Dry ground usually holds a truck and a wheelchair well, but open, dry sites can get windy and dusty: ask for units to be staked or tied down on exposed ground.

Heat

About 88 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. About 19 days a year go past 100°F. On sunny, dry sites, place units in shade where the site allows. In the summer months, ask how often units will be pumped and restocked, and put them where they get afternoon shade.

Occasional Freezes

Only about 19 nights a year reach 32°F (fewer than three in four U.S. places in our data), but one hard freeze is enough to damage anything that holds water. For winter dates, ask what the provider does with water-carrying units when a freeze is forecast.

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; hard, dry ground usually works as the route to the ADA unit, loose sand or gravel does not.

With only about 19 freezing nights a year, summer is the season to plan around; for a summer wedding, a restroom trailer brings air conditioning but needs a power source, while deluxe units need no hookups. At open-field events on dry, exposed ground, ask for units to be staked. 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 California and wedding restrooms in California.