Home › Cities › United States › Massachusetts › Barnstable › Tools › Weather extremes
Weather extremes
How extreme does Barnstable's weather get?
The hottest, coldest, wettest and snowiest days Barnstable 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 Barnstable has recorded — each shown against what a normal day that time of year looks like.
That is about 28°F hotter than a normal September afternoon in Barnstable (typical high near 71°F).
The three most extreme on record
About 39°F colder than a normal December night in Barnstable (typical low near 29°F).
The three most extreme on record
More rain in a single day than Barnstable usually gets in the whole month of May (typical May total about 3.4 in).
The three most extreme on record
Close to a whole typical January's snow in one day (Barnstable averages about 10 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.
Barnstable's record heat sits well above even a hot day for the season — September's 99°F is about 28°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 Hyannis (NOAA GHCN station USC00193821), about 4 km from the city centre.