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Weather extremes

How extreme does Roi Et's weather get?

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

🔥 Hottest day
115°F Jun 21, 1998

That is about 22°F hotter than a normal June afternoon in Roi Et (typical high near 93°F).

The three most extreme on record

1 115°F Jun 21, 1998
2 110°F Jun 21, 1997
3 110°F Apr 26, 2024
❄️ Coldest night
44°F Dec 24, 1999

About 20°F colder than a normal December night in Roi Et (typical low near 64°F).

The three most extreme on record

1 44°F Dec 24, 1999
2 45°F Dec 30, 1975
3 45°F Dec 25, 1999
🌧️ Most rain in one day
12.53 in Aug 30, 2019

More rain in a single day than Roi Et usually gets in the whole month of August (typical August total about 11.1 in).

The three most extreme on record

1 12.53 in Aug 30, 2019
2 7.80 in Jun 24, 2001
3 7.04 in Sep 9, 1977

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

Roi Et's record heat sits well above even a hot day for the season — June's 115°F is about 22°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, Roi Et's warmest days reach the high 90s°F and its coldest nights drop to the mid-60s°F. But across the record it has gone as high as 115°F and as low as 44°F. A single day has delivered over 13 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 29 years of daily observations at Roi ET, 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 →