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Weather extremes
How extreme does Yosemite Valley's weather get?
The hottest, coldest, wettest and snowiest days Yosemite 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 Yosemite Valley has recorded — each shown against what a normal day that time of year looks like.
That is about 20°F hotter than a normal August afternoon in Yosemite Valley (typical high near 89°F).
The three most extreme on record
About 42°F colder than a normal January night in Yosemite Valley (typical low near 29°F).
The three most extreme on record
More rain in a single day than Yosemite Valley usually gets in the whole month of October (typical October total about 1.5 in).
The three most extreme on record
Close to a whole typical January's snow in one day (Yosemite Valley averages about 14 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.
Yosemite Valley's record heat sits well above even a hot day for the season — August's 109°F is about 20°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 25 years of daily observations at Yosemite Park HQ, a weather station, about 1 km from the city centre. The underlying daily records come from NOAA's global station network.