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Weather extremes

How extreme does Mostar's weather get?

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

Based on 25 years of daily weather observations (2001–present), from the Mostar station. Updated through June 2026 — 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 Mostar has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
110°F Aug 24, 2007

That is about 18°F hotter than a normal August afternoon in Mostar (typical high near 92°F).

The three most extreme on record

1 110°F Aug 24, 2007
2 109°F Aug 16, 2024
3 108°F Jul 18, 2007
❄️ Coldest night
18°F Dec 21, 2009

About 21°F colder than a normal December night in Mostar (typical low near 39°F).

The three most extreme on record

1 18°F Dec 21, 2009
2 19°F Feb 4, 2012
3 20°F Feb 5, 2012
🌧️ Most rain in one day
10.70 in Nov 16, 2005

More rain in a single day than Mostar usually gets in the whole month of November (typical November total about 5.8 in).

The three most extreme on record

1 10.70 in Nov 16, 2005
2 5.00 in Sep 26, 2010
3 4.89 in Feb 13, 2013

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

Mostar's record heat sits well above even a hot day for the season — August's 110°F is about 18°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, Mostar's warmest days reach the low 90s°F and its coldest nights drop to the high 30s°F. But across the record it has gone as high as 110°F and as low as 18°F. A single day has delivered over 11 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 13 years of daily observations at Mostar, a weather station, inside the city. The underlying daily records come from NOAA's global station network.

How we build these numbers →