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Weather extremes
How extreme does Ajax's weather get?
The hottest, coldest, wettest and snowiest days Ajax has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.
The four kinds of extreme
The hottest, coldest, wettest and snowiest single days Ajax has recorded — each shown against what a normal day that time of year looks like.
That is about 18°F hotter than a normal July afternoon in Ajax (typical high near 81°F).
The three most extreme on record
About 32°F colder than a normal February night in Ajax (typical low near 14°F).
The three most extreme on record
About 73% of a typical October's rain in a single day (Ajax averages roughly 3.2 in across the month).
The three most extreme on record
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.
Ajax's record heat sits well above even a hot day for the season — July's 99°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
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 28 years of daily observations at Oshawa Wpcp, a weather station, about 16 km from the city centre. The underlying daily records come from NOAA's global station network.