The hottest, coldest, wettest and snowiest days Onitsha has
recorded — the outer limits of what its weather can do, and how far
they sit beyond a normal day.
Based on 33 years of daily weather observations (1991–2024), from the Onitsha station. Updated through December 2024 — 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 Onitsha
has recorded — each shown against what a normal day that time of year
looks like.
🔥Hottest day
101°FMar 12, 2000
The three most extreme on record
1101°FMar 12, 2000
296°FNov 30, 2024
396°FDec 2, 2024
❄️Coldest night
71°FOct 8, 1999
The three most extreme on record
171°FOct 8, 1999
273°FJun 9, 1999
376°FFeb 24, 1994
🌧️Most rain in one day
0.59 inOct 8, 1999
Top recorded days
10.59 inOct 8, 1999
20.02 inOct 1, 1999
In plain terms
Across the record, Onitsha has reached as high as 101°F and as low as 71°F. A single day has delivered over 1 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 — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.