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Weather extremes
How extreme does Mount Pearl's weather get?
The hottest, coldest, wettest and snowiest days Mount Pearl 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 Mount Pearl has recorded — each shown against what a normal day that time of year looks like.
That is about 22°F hotter than a normal July afternoon in Mount Pearl (typical high near 65°F).
The three most extreme on record
About 26°F colder than a normal January night in Mount Pearl (typical low near 21°F).
The three most extreme on record
About 76% of a typical September's rain in a single day (Mount Pearl averages roughly 4.8 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.
Mount Pearl's record heat sits well above even a hot day for the season — July's 87°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
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 21 years of daily observations at ST John's A, a weather station, about 12 km from the city centre. The underlying daily records come from NOAA's global station network.