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Weather extremes
How extreme does San Tan Valley's weather get?
The hottest, coldest, wettest and snowiest days San Tan Valley 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 San Tan Valley 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 San Tan Valley (typical high near 107°F).
The three most extreme on record
About 23°F colder than a normal December night in San Tan Valley (typical low near 38°F).
The three most extreme on record
More rain in a single day than San Tan Valley usually gets in the whole month of March (typical March total about 0.8 in).
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.
San Tan Valley's record heat sits well above even a hot day for the season — July's 120°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 Florence (NOAA GHCN station USC00023027), about 22 km from the city centre.