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Weather extremes
How extreme does Mehlville's weather get?
The hottest, coldest, wettest and snowiest days Mehlville 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 Mehlville has recorded — each shown against what a normal day that time of year looks like.
That is about 17°F hotter than a normal July afternoon in Mehlville (typical high near 89°F).
The three most extreme on record
About 47°F colder than a normal December night in Mehlville (typical low near 27°F).
The three most extreme on record
More rain in a single day than Mehlville usually gets in the whole month of July (typical July total about 3.9 in).
The three most extreme on record
Close to a whole typical February's snow in one day (Mehlville averages about 1 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.
Mehlville's record heat sits well above even a hot day for the season — July's 106°F is about 17°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 ST Charles 7 Ssw (NOAA GHCN station USC00237398), about 26 km from the city centre.