Porta Potty Rental in New Hampshire

Weather and Building Across the State

Heat

Manchester, Nashua, Derry and 5 other listed places share the most hot days of all 28 New Hampshire places listed here: about 16 days a year at or above 90°F (NOAA normals, Manchester Airport, NH station). None of the 28 listed places reach 90°F on 60 or more days a year. For most of the state, heat is a summer-month issue rather than a constant one.

Freezing Nights and Snow

Berlin has the most freezing nights of all 28 New Hampshire places listed here: about 197 nights a year at or below 32°F (NOAA normals, Berlin Muni. Airport, NH station). All 28 listed places average 120 or more freezing nights, when water-carrying units need winterizing or heat for months at a time. Concord, Laconia, Franklin and 3 other listed places share the most snowfall of the 9 listed New Hampshire places with this figure: about 68 inches of snow a year (NOAA normals, Concord Muni. Airport, NH station). All 9 places with snowfall normals average 20 inches or more, enough to plan for a plowed path to the units.

Rain

Dover and Durham share the most precipitation of all 28 New Hampshire places listed here: about 48 inches of precipitation a year (NOAA normals, Durham 2 N, NH station). 7 of 28 listed places get 46 inches or more, or 12 or more days with an inch, so firm ground for units and ADA routes matters.

New and Older Housing

Durham has the highest share of recent housing of the 26 listed New Hampshire places with this figure: 21.4% of housing units built in 2010 or later (ACS 2020–2024). 4 of 26 listed places are above the U.S. share of 11.4%. That describes the housing stock, not current permits, but it shows where new-home construction has been concentrated; OSHA's toilet table applies to every one of those job sites. Berlin has the oldest housing of the 25 listed New Hampshire places with this figure: a median year built of 1939 or earlier (ACS 2020–2024). 7 of 25 listed places have a median year built of 1970 or earlier, where renovation crews in existing buildings are the usual job site.

Climate Regions

Listed places by DOE Building America climate region (county-level, PNNL guide to IECC 2021 zones): Cold (28). Winters in this region are long enough that freezing, not heat, is usually the main limit on units that carry water.

Shoreline Places

1 of 28 listed places have a Census reference point within 5 km (about 3 miles) of the shoreline in the TIGER coastline layer, which includes Great Lakes shores. Beach and waterfront sites need a firm approach for trucks and a firm route for ADA units.

Who Handles Event and Street-Use Rules

Of the 28 New Hampshire places listed here, 13 are incorporated cities, towns, villages or boroughs, 10 are Census-designated places, unincorporated communities without a municipal government and 5 are towns or townships with their own government. The rule of thumb for an event on public land or a unit on a street or sidewalk: in an incorporated place, ask the city, town, village or borough government; in an unincorporated community, ask the town or township it sits in, or the county. We do not say whether a permit is needed; each city page names who to ask.