All-Time Record Highs by U.S. State · California 134°F, Texas 120°F
Every U.S. state has a heat ceiling, and it is higher than most buyers assume. California holds the national record at 134°F (Death Valley), followed by Arizona at 128°F and Nevada at 125°F. But the striking part is not the desert Southwest — it is how far the heat reaches. North Dakota, Washington, South Dakota, Arkansas and Kansas have all recorded 120°F or 121°F, matching or beating Texas at 120°F. Forty-two states have hit 110°F or higher, including New Jersey, Delaware and Pennsylvania (110-111°F). Only the far north and the ocean-moderated corners stay below: Alaska and Hawaii at 100°F, Rhode Island 104°F, Maine 105°F.
Why this matters for B2B
Cooling is not a Sun Belt category. If Iowa, Illinois and Minnesota can reach 115-118°F, then fans, evaporative coolers, portable AC and shade products have a peak-season market in the Midwest and Northeast too — the difference is that those regions buy in a short, violent window rather than all summer, so the risk is stock-out timing, not annual volume. Read this next to air-conditioning penetration by state: the places with the lowest AC coverage are often the ones whose record highs still clear 105-110°F, and that gap is exactly where portable cooling sells. For Houston buyers the practical read is length of season, not peak: Texas tops out at 120°F but runs hot for months. See also North America vs China by latitude and our U.S. market hub.
Source: AccuWeather, all-time state high-temperature records. Original infographic reproduced above with source attribution intact.