How extreme does New Britain's weather get?

The hottest, coldest, wettest and snowiest days New Britain has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.

Based on 50+ years of daily weather observations (1971–present), from the Hartford Brainard Fld station 13 km away. Updated through May 2026 — an all-time extreme only changes when a more extreme day actually occurs, so some dates are old. That is normal, not stale data.

The four kinds of extreme

The hottest, coldest, wettest and snowiest single days New Britain has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day

103°F Aug 9, 2001

That is about 20°F hotter than a normal August afternoon in New Britain (typical high near 83°F).

The three most extreme on record

1 103°F Aug 9, 2001

2 103°F Jul 22, 2011

3 102°F Aug 3, 1975

❄️ Coldest night

-16°F Jan 18, 1997

About 36°F colder than a normal January night in New Britain (typical low near 20°F).

The three most extreme on record

1 -16°F Jan 18, 1997

2 -15°F Jan 21, 1984

3 -13°F Jan 19, 1997

🌧️ Most rain in one day

4.74 in Sep 16, 1999

More rain in a single day than New Britain usually gets in the whole month of September (typical September total about 4.0 in).

The three most extreme on record

1 4.74 in Sep 16, 1999

2 4.55 in Sep 6, 2008

3 4.43 in Sep 1, 2021

⛄ Most snow in one day

12.0 in Jan 8, 1996

The three most extreme on record

1 12.0 in Jan 8, 1996

2 11.0 in Apr 7, 1982

3 10.3 in Feb 19, 1972

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.

normal range of daily temperatureshottest ever recordedcoldest ever recorded

New Britain's record heat sits well above even a hot day for the season — August's 103°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

In a normal year, New Britain's warmest days reach the mid-80s°F and its coldest nights drop to the low 20s°F. But across the record it has gone as high as 103°F and as low as −16°F. A single day has delivered over 5 inches of rain or close to 12 inches of snow. Those are the outer edges worth knowing if you are moving here, planning a trip, or thinking about a house.

Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at MT Carmel (NOAA GHCN station USC00065077), about 30 km from the city centre.

How we build these numbers →

← New Britain city detail