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Weather extremes

How extreme does Patna's weather get?

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

Based on 50+ years of daily weather observations (1973–present), from the Patna station 4 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 Patna has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
115°F Jun 15, 1995

That is about 17°F hotter than a normal June afternoon in Patna (typical high near 98°F).

The three most extreme on record

1 115°F Jun 15, 1995
2 114°F May 29, 2005
3 114°F Jun 14, 2012
❄️ Coldest night
32°F Jan 28, 1975

About 16°F colder than a normal January night in Patna (typical low near 48°F).

The three most extreme on record

1 32°F Jan 28, 1975
2 34°F Jan 4, 1977
3 34°F Jan 9, 2013
🌧️ Most rain in one day
18.19 in Sep 4, 1991

More rain in a single day than Patna usually gets in the whole month of September (typical September total about 14.8 in).

The three most extreme on record

1 18.19 in Sep 4, 1991
2 16.46 in Jul 11, 1989
3 15.84 in Sep 18, 1995

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.

10°30°50°70°90°110°130° all-time high 115°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Patna's record heat sits well above even a hot day for the season — June's 115°F is about 17°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, Patna's warmest days reach the low 100s°F and its coldest nights drop to the high 40s°F. But across the record it has gone as high as 115°F and as low as 32°F. A single day has delivered over 18 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 — 1991–2020 normals computed from 23 years of daily observations at Patna, a weather station, about 4 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →