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Weather extremes
How extreme does Blackburn's weather get?
The hottest, coldest, wettest and snowiest days Blackburn 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 Blackburn has recorded — each shown against what a normal day that time of year looks like.
That is about 30°F hotter than a normal July afternoon in Blackburn (typical high near 68°F).
The three most extreme on record
About 26°F colder than a normal December night in Blackburn (typical low near 35°F).
The three most extreme on record
About 73% of a typical August's rain in a single day (Blackburn averages roughly 3.9 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.
Blackburn's record heat sits well above even a hot day for the season — July's 98°F is about 30°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 24 years of daily observations at Preston: Moor Park, a weather station, about 15 km from the city centre. The underlying daily records come from NOAA's global station network.