The hottest, coldest, wettest and snowiest days Gniezno has
recorded — the outer limits of what its weather can do, and how far
they sit beyond a normal day.
Based on 23 years of daily weather observations (2002–present), from the Krzesiny station 48 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 Gniezno
has recorded — each shown against what a normal day that time of year
looks like.
🔥Hottest day
100°FJun 26, 2019
The three most extreme on record
1100°FJun 26, 2019
299°FJul 21, 2022
399°FJun 30, 2019
❄️Coldest night
-12°FJan 24, 2006
The three most extreme on record
1-12°FJan 24, 2006
2-11°FJan 22, 2006
3-9°FFeb 12, 2012
🌧️Most rain in one day
7.87 inAug 8, 2010
The three most extreme on record
17.87 inAug 8, 2010
24.81 inJun 16, 2004
34.72 inOct 3, 2003
In plain terms
Across the record, Gniezno has reached as high as 100°F and as low as −12°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 Lawica, a weather station, about 53 km from the city centre. The underlying daily records come from NOAA's global station network.