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Weather extremes

How extreme does Petrolina's weather get?

The hottest, coldest, wettest and snowiest days Petrolina has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.

Based on 34 years of daily weather observations (1991–present), from the Senador Nilo Coelho station 9 km away. Updated through August 2025 — an all-time extreme only changes when a more extreme day actually occurs, so some dates are old. That is normal, not stale data.

The four kinds of extreme

The hottest, coldest, wettest and snowiest single days Petrolina has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
115°F Nov 5, 1991

That is about 21°F hotter than a normal November afternoon in Petrolina (typical high near 94°F).

The three most extreme on record

1 115°F Nov 5, 1991
2 110°F Dec 8, 1993
3 106°F Apr 26, 1992
❄️ Coldest night
50°F May 16, 1992

About 23°F colder than a normal May night in Petrolina (typical low near 73°F).

The three most extreme on record

1 50°F May 16, 1992
2 50°F Jul 19, 1991
3 52°F Jul 31, 1996
🌧️ Most rain in one day
4.29 in Feb 22, 1994

More rain in a single day than Petrolina usually gets in the whole month of February (typical February total about 0.7 in).

The three most extreme on record

1 4.29 in Feb 22, 1994
2 3.66 in Apr 10, 1991
3 3.58 in Mar 14, 1991

How hot and cold it gets, month by month

The shaded band is the normal range of daily temperatures for each month. The dots show the most extreme it has ever been — so you can see how far beyond a normal day the records really sit.

30°50°70°90°110°130° all-time high 115°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Petrolina's record heat sits well above even a hot day for the season — November's 115°F is about 21°F beyond a normal hot afternoon. Its record cold is just as far below a normal winter night — the dots mark how rare each extreme really is.

In plain terms

In a normal year, Petrolina's warmest days reach the mid-90s°F and its coldest nights drop to the high 60s°F. But across the record it has gone as high as 115°F and as low as 50°F. A single day has delivered over 4 inches of rain. Those are the outer edges worth knowing if you are moving here, planning a trip, or thinking about a house.
Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from INMET, Brazil's national meteorological institute, measured at Petrolina, about 3 km from the city centre.

How we build these numbers →