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Wasco has a hot desert climate.
Long, extreme summers. Mild winters. Very little rain in any month — here's what that means in plain terms.
What this climate feels like
The four things a regular visitor actually wants to know:
Highs near 38°C in July. About 109 days a year above 32 °C.
Lows near 3°C in December. About 22 freezing nights a year.
About 181 mm of rain a year. Wettest in March.
Clear skies most days.
What "hot desert" means
Climate scientists sort every place on Earth into about 30 climate types, based on how hot, cold, wet and dry it is across the year. Wasco's type — hot desert — sits in the broad family of dry climates — deserts and steppes.
Researchers write climate types as a short letter code. Here is what each letter means:
Cities with the same climate as Wasco
A hot desert climate (BWh) — these recognizable cities share it. If you know one of them, you know roughly what to expect.
Has Wasco's climate type changed?
A climate type is a coarse bucket. It can hold steady for years while the weather inside it shifts — or tip into the next bucket.
What this climate means for you
Xeriscape only — native succulents, cactus, desert-adapted shrubs. Vegetable gardens need shade cloth and heavy irrigation; many crops simply won't survive summer.
Travel in the cool half of the year (Nov–Mar). Summer travel is uncomfortable and outdoor activity is limited to dawn and dusk.
Brutal summer heat shapes daily life — early mornings and evenings are the practical outdoor windows. Air conditioning is near-universal; sun protection and hydration are constants.
Where these numbers come from
The climate type and the month-by-month figures on this page are computed from Wasco's measured 30-year climate normals (1991–2020) — the same official records behind Wasco's main climate page, so the two always agree.
Long-range climate maps measure things slightly differently and can place a city in a neighbouring category. Where they differ, this page uses the measured station record as the climate today.
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Wasco (NOAA GHCN station USC00049452), about 1 km from the city centre.