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Weather extremes

How extreme does Pātan's weather get?

The hottest, coldest, wettest and snowiest days Pātan 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 (1971–present), from the Kathmandu Airport station 6 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 Pātan has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
98°F May 7, 1989

That is about 14°F hotter than a normal May afternoon in Pātan (typical high near 84°F).

The three most extreme on record

1 98°F May 7, 1989
2 96°F May 5, 1989
3 96°F Apr 26, 1999
❄️ Coldest night
26°F Jan 11, 1978

About 10°F colder than a normal January night in Pātan (typical low near 36°F).

The three most extreme on record

1 26°F Jan 11, 1978
2 26°F Jan 19, 1978
3 27°F Jan 1, 1978
🌧️ Most rain in one day
7.64 in Sep 28, 2024

About 89% of a typical September's rain in a single day (Pātan averages roughly 8.6 in across the month).

The three most extreme on record

1 7.64 in Sep 28, 2024recent
2 7.52 in Jul 10, 1994
3 7.09 in Apr 23, 1980

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° all-time high 98°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Pātan's record heat sits well above even a hot day for the season — May's 98°F is about 14°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, Pātan's warmest days reach the mid-80s°F and its coldest nights drop to the mid-30s°F. But across the record it has gone as high as 98°F and as low as 26°F. A single day has delivered over 8 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 16 years of daily observations at Kathmandu Airport, a weather station, about 6 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →