How extreme does Richland's weather get?

The hottest, coldest, wettest and snowiest days Richland 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 Richland station 3 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 Richland has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day

113°F Jul 30, 2020

That is about 24°F hotter than a normal July afternoon in Richland (typical high near 89°F).

The three most extreme on record

1 113°F Jul 30, 2020

2 112°F Aug 17, 2020

3 112°F Jun 29, 2021

❄️ Coldest night

-37°F Dec 9, 1996

About 65°F colder than a normal December night in Richland (typical low near 28°F).

The three most extreme on record

1 -37°F Dec 9, 1996

2 -33°F Dec 8, 1996

3 -27°F Dec 7, 1996

🌧️ Most rain in one day

2.00 in Feb 4, 2019

More rain in a single day than Richland usually gets in the whole month of February (typical February total about 0.7 in).

The three most extreme on record

1 2.00 in Feb 4, 2019

2 1.12 in Aug 30, 1977

3 1.10 in Oct 29, 1982

⛄ Most snow in one day

6.0 in Feb 13, 1990

The three most extreme on record

1 6.0 in Feb 13, 1990

2 5.3 in Nov 20, 1985

3 5.3 in Feb 19, 1993

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

Richland's record heat sits well above even a hot day for the season — July's 113°F is about 24°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, Richland's warmest days reach the high 80s°F and its coldest nights drop to the high 20s°F. But across the record it has gone as high as 113°F and as low as −37°F. A single day has delivered over 2 inches of rain or close to 6 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 Richland (NOAA GHCN station USC00457015), about 3 km from the city centre.

How we build these numbers →

← Richland city detail