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Weather extremes

How extreme does Nan's weather get?

The hottest, coldest, wettest and snowiest days Nan 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 Nan station 3 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 Nan has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
110°F Apr 14, 2016

That is about 11°F hotter than a normal April afternoon in Nan (typical high near 99°F).

The three most extreme on record

1 110°F Apr 14, 2016
2 109°F Apr 14, 2023
3 109°F Apr 17, 2016
❄️ Coldest night
37°F Dec 25, 1999

About 22°F colder than a normal December night in Nan (typical low near 59°F).

The three most extreme on record

1 37°F Dec 25, 1999
2 38°F Dec 26, 1999
3 38°F Dec 27, 1999
🌧️ Most rain in one day
8.34 in Jun 16, 2004

More rain in a single day than Nan usually gets in the whole month of June (typical June total about 5.5 in).

The three most extreme on record

1 8.34 in Jun 16, 2004
2 5.94 in May 18, 1994
3 5.76 in Aug 15, 2016

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 110°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Nan's record heat sits well above even a hot day for the season — April's 110°F is about 11°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, Nan's warmest days reach the high 90s°F and its coldest nights drop to the high 50s°F. But across the record it has gone as high as 110°F and as low as 37°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 30 years of daily observations at Nan, a weather station, about 3 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →