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Weather extremes
How extreme does Fountain Hills's weather get?
The hottest, coldest, wettest and snowiest days Fountain Hills 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 Fountain Hills 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 Fountain Hills (typical high near 103°F).
The three most extreme on record
About 22°F colder than a normal January night in Fountain Hills (typical low near 45°F).
The three most extreme on record
More rain in a single day than Fountain Hills usually gets in the whole month of September (typical September total about 0.8 in).
The three most extreme on record
Top recorded days
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.
Fountain Hills's record heat sits well above even a hot day for the season — July's 125°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 — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Fountain Hills (NOAA GHCN station USC00023190), about 1 km from the city centre.