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Weather extremes
How extreme does Roy's weather get?
The hottest, coldest, wettest and snowiest days Roy 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 Roy has recorded — each shown against what a normal day that time of year looks like.
That is about 13°F hotter than a normal July afternoon in Roy (typical high near 87°F).
The three most extreme on record
About 39°F colder than a normal December night in Roy (typical low near 23°F).
The three most extreme on record
More rain in a single day than Roy usually gets in the whole month of September (typical September total about 1.6 in).
The three most extreme on record
About 94% of a typical December's snow in a single day (Roy averages roughly 24 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.
Roy's record heat sits well above even a hot day for the season — July's 100°F is about 13°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 Farmington 3 NW (NOAA GHCN station USC00422726), about 18 km from the city centre.