How extreme does Clayton's weather get?

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

🔥 Hottest day

105°F Aug 19, 2000

That is about 15°F hotter than a normal August afternoon in Clayton (typical high near 90°F).

The three most extreme on record

1 105°F Aug 19, 2000

2 105°F Aug 20, 2000

3 104°F Jul 21, 2000

❄️ Coldest night

-6°F Jan 21, 1985

About 43°F colder than a normal January night in Clayton (typical low near 37°F).

The three most extreme on record

1 -6°F Jan 21, 1985

2 -5°F Dec 24, 1989

3 3°F Jan 19, 1977

🌧️ Most rain in one day

11.50 in Sep 17, 2020

More rain in a single day than Clayton usually gets in the whole month of September (typical September total about 3.7 in).

The three most extreme on record

1 11.50 in Sep 17, 2020

2 11.20 in Mar 17, 1990

3 8.34 in Feb 17, 1975

⛄ Most snow in one day

4.0 in Dec 23, 1993

Close to a whole typical December's snow in one day (Clayton averages about 0 in across the month).

The three most extreme on record

1 4.0 in Dec 23, 1993

2 1.3 in Jan 30, 2001

3 1.0 in Dec 27, 1980

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

Clayton's record heat sits well above even a hot day for the season — August's 105°F is about 15°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, Clayton's warmest days reach the low 90s°F and its coldest nights drop to the high 30s°F. But across the record it has gone as high as 105°F and as low as −6°F. A single day has delivered over 12 inches of rain or close to 4 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 Clayton (NOAA GHCN station USC00011725), inside the city.

How we build these numbers →

← Clayton city detail