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Weather extremes
How extreme does Blue Island's weather get?
The hottest, coldest, wettest and snowiest days Blue Island 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 Blue Island has recorded — each shown against what a normal day that time of year looks like.
That is about 21°F hotter than a normal July afternoon in Blue Island (typical high near 85°F).
The three most extreme on record
About 44°F colder than a normal January night in Blue Island (typical low near 20°F).
The three most extreme on record
More rain in a single day than Blue Island usually gets in the whole month of July (typical July total about 4.0 in).
The three most extreme on record
Close to a whole typical January's snow in one day (Blue Island averages about 13 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.
Blue Island's record heat sits well above even a hot day for the season — July's 106°F is about 21°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 — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Little Red School House (NOAA GHCN station USC00115110), about 17 km from the city centre.