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Weather extremes

How extreme does Moses Lake's weather get?

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

Based on 29 years of daily weather observations (1997–present), from the Moses Lake Grant Co Ap station 8 km away. Updated through June 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 Moses Lake has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
114°F Jun 29, 2021

That is about 34°F hotter than a normal June afternoon in Moses Lake (typical high near 80°F).

The three most extreme on record

1 114°F Jun 29, 2021recent
2 112°F Jun 28, 2015
3 112°F Jun 28, 2021
❄️ Coldest night
-19°F Nov 24, 2010

About 48°F colder than a normal November night in Moses Lake (typical low near 29°F).

The three most extreme on record

1 -19°F Nov 24, 2010
2 -17°F Jan 5, 2004
3 -13°F Jan 1, 2022
🌧️ Most rain in one day
1.10 in Apr 13, 2000

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

The three most extreme on record

1 1.10 in Apr 13, 2000
2 0.99 in Jul 7, 2022
3 0.85 in May 9, 2005

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.

-30°-10°10°30°50°70°90°110°130° all-time high 114°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Moses Lake's record heat sits well above even a hot day for the season — June's 114°F is about 34°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, Moses Lake's warmest days reach the low 90s°F and its coldest nights drop to the mid-20s°F. But across the record it has gone as high as 114°F and as low as −19°F. A single day has delivered over 1 inches of rain. 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 Moses Lake Grant CO AP (NOAA GHCN station USW00024110), about 8 km from the city centre.

How we build these numbers →