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Reynosa has a hot semi-arid climate.

Dry country, big sun, modest rain — here's what that means in plain terms.

Hot semi-aridKöppen BSh

What this climate feels like

The four things a regular visitor actually wants to know:

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Summers
Very hot

Highs near 100°F in August. About 176 days a year above 90 °F.

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Winters
Mild

Lows near 53°F in January.

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Rain
Moderate rainfall

About 22 in of rain a year. Wettest in September.

Sky & trend
Partly cloudy

A roughly even mix of sun and cloud.

What "hot semi-arid" 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. Reynosa's type — hot semi-arid — sits in the broad family of dry climates — deserts and steppes.

The shorthand: BSh

Researchers write climate types as a short letter code. Here is what each letter means:

B
Arid — More water evaporates than falls as rain — the defining feature of a dry climate.
S
Steppe (semi-arid) — Drier than temperate country, but with enough rain for grassland — not true desert.
h
Hot — The yearly average stays above 18 °C — a hot dry climate rather than a cold one.

Cities with the same climate as Reynosa

A hot semi-arid climate (BSh) — these recognizable cities share it. If you know one of them, you know roughly what to expect.

Reynosa sits near a climate boundary

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This city's climate sits within about 0.9 °C of the next type along. A slightly cooler or warmer decade could change which side of the boundary it lands on — but the lived weather doesn't change at the line.

Has Reynosa's climate type changed?

Stable — Reynosa's climate has held the same type between the 1971–2000 and 1991–2020 normals. The label is steady; the climate beneath it is still warming.

What this climate means for you

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For gardeners

Native grasses, drought-tolerant shrubs and hardy fruit trees (figs, pomegranate, olives) do well. Vegetable gardens need irrigation.

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For travellers

Cool half of the year is comfortable; summer is hot and dusty. Watch for wet-season storms during the short rainy stretch.

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For movers & buyers

Hot, dry and dusty — drought is a recurring issue. Comfortable winters; tough, sun-blasted summers.

Where these numbers come from

The climate type and the month-by-month figures on this page are computed from Reynosa's measured 30-year climate normals (1991–2020) — the same official records behind Reynosa'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 Mcallen Miller Intl AP (NOAA GHCN station USW00012959), about 12 km from the city centre.

How we build these numbers →