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Weather extremes

How extreme does Lompoc's weather get?

The hottest, coldest, wettest and snowiest days Lompoc 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 Lompoc station 2 km away. Updated through March 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 Lompoc has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
110°F Oct 4, 1987

That is about 36°F hotter than a normal October afternoon in Lompoc (typical high near 74°F).

The three most extreme on record

1 110°F Oct 4, 1987
2 109°F Jun 20, 2008
3 106°F Sep 24, 1978
❄️ Coldest night
20°F Dec 22, 1990

About 22°F colder than a normal December night in Lompoc (typical low near 42°F).

The three most extreme on record

1 20°F Dec 22, 1990
2 21°F Dec 7, 1978
3 24°F Jan 7, 1973
🌧️ Most rain in one day
3.99 in Mar 20, 2011

More rain in a single day than Lompoc usually gets in the whole month of March (typical March total about 2.8 in).

The three most extreme on record

1 3.99 in Mar 20, 2011
2 3.87 in Mar 5, 2001
3 3.83 in Jan 9, 2023

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.

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

Lompoc's record heat sits well above even a hot day for the season — October's 110°F is about 36°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, Lompoc's warmest days reach the mid-70s°F and its coldest nights drop to the low 40s°F. But across the record it has gone as high as 110°F and as low as 20°F. A single day has delivered over 4 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 Lompoc (NOAA GHCN station USC00045064), about 2 km from the city centre.

How we build these numbers →