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Weather extremes

How extreme does Passau's weather get?

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

Based on 29 years of daily weather observations (1997–present), from the Furstenzell station 6 km away. Updated through February 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 Passau has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
97°F Aug 13, 2003

That is about 22°F hotter than a normal August afternoon in Passau (typical high near 75°F).

The three most extreme on record

1 97°F Aug 13, 2003
2 96°F Aug 8, 2015
3 95°F Jul 22, 2015
❄️ Coldest night
-3°F Dec 24, 2001

About 31°F colder than a normal December night in Passau (typical low near 28°F).

The three most extreme on record

1 -3°F Dec 24, 2001
2 -1°F Jan 26, 2000
3 0°F Jan 25, 2000
🌧️ Most rain in one day
3.98 in Jul 17, 2010

About 91% of a typical July's rain in a single day (Passau averages roughly 4.4 in across the month).

The three most extreme on record

1 3.98 in Jul 17, 2010
2 3.07 in May 12, 2016
3 2.53 in Sep 17, 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.

-30°-10°10°30°50°70°90°110° all-time high 97°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Passau's record heat sits well above even a hot day for the season — August's 97°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, Passau's warmest days reach the mid-70s°F and its coldest nights drop to the mid-20s°F. But across the record it has gone as high as 97°F and as low as −3°F. A single day has delivered over 4 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 24 years of daily observations at Furstenzell, 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 →