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Weather extremes

How extreme does Johnson City's weather get?

The hottest, coldest, wettest and snowiest days Johnson City 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 Bristol Ap station 19 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 Johnson City has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
103°F Jun 30, 2012

That is about 19°F hotter than a normal June afternoon in Johnson City (typical high near 84°F).

The three most extreme on record

1 103°F Jun 30, 2012
2 102°F Jun 29, 2012
3 101°F Aug 18, 1988
❄️ Coldest night
-21°F Jan 21, 1985

About 47°F colder than a normal January night in Johnson City (typical low near 26°F).

The three most extreme on record

1 -21°F Jan 21, 1985
2 -16°F Jan 20, 1985
3 -15°F Feb 5, 1996
🌧️ Most rain in one day
3.50 in Aug 7, 2003

About 93% of a typical August's rain in a single day (Johnson City averages roughly 3.8 in across the month).

The three most extreme on record

1 3.50 in Aug 7, 2003
2 3.15 in Sep 14, 1982
3 2.95 in Mar 27, 1994
Most snow in one day
12.0 in Feb 2, 1996

Close to a whole typical February's snow in one day (Johnson City averages about 3 in across the month).

The three most extreme on record

1 12.0 in Feb 2, 1996
2 11.4 in Mar 13, 1993
3 10.2 in Jan 6, 1996

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.

-50°-30°-10°10°30°50°70°90°110°130° all-time high 103°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Johnson City's record heat sits well above even a hot day for the season — June's 103°F is about 19°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, Johnson City's warmest days reach the mid-80s°F and its coldest nights drop to the mid-20s°F. But across the record it has gone as high as 103°F and as low as −21°F. A single day has delivered over 4 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 Bristol AP (NOAA GHCN station USW00013877), about 19 km from the city centre.

How we build these numbers →