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Weather extremes

How extreme does Wildomar's weather get?

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

Based on 18 years of daily weather observations (2008–present), from the Fallbrook 5 Ne station 20 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 Wildomar has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
116°F Sep 5, 2020

That is about 28°F hotter than a normal September afternoon in Wildomar (typical high near 88°F).

The three most extreme on record

1 116°F Sep 5, 2020
2 114°F Jul 6, 2018
3 113°F Sep 27, 2010
❄️ Coldest night
32°F Jan 11, 2013

About 15°F colder than a normal January night in Wildomar (typical low near 47°F).

The three most extreme on record

1 32°F Jan 11, 2013
2 32°F Jan 12, 2013
3 32°F Dec 31, 2014
🌧️ Most rain in one day
4.99 in Feb 14, 2019

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

The three most extreme on record

1 4.99 in Feb 14, 2019
2 3.27 in Dec 21, 2010
3 3.19 in Jan 22, 2017

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 116°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Wildomar's record heat sits well above even a hot day for the season — September's 116°F is about 28°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, Wildomar's warmest days reach the high 80s°F and its coldest nights drop to the mid-40s°F. But across the record it has gone as high as 116°F and as low as 32°F. A single day has delivered over 5 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 Santa Ana Fire Stn (NOAA GHCN station USC00047888), about 57 km from the city centre.

How we build these numbers →