How extreme does Santa Clarita's weather get?

The hottest, coldest, wettest and snowiest days Santa Clarita 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 Pasadena station 45 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 Santa Clarita has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day

115°F Sep 6, 2020

That is about 25°F hotter than a normal September afternoon in Santa Clarita (typical high near 90°F).

The three most extreme on record

1 115°F Sep 6, 2020

2 114°F Sep 6, 2024

3 113°F Jul 7, 2018

❄️ Coldest night

23°F Mar 2, 1978

About 25°F colder than a normal March night in Santa Clarita (typical low near 48°F).

The three most extreme on record

1 23°F Mar 2, 1978

2 26°F Dec 22, 1990

3 26°F Dec 23, 1990

🌧️ Most rain in one day

5.30 in Jan 10, 1995

More rain in a single day than Santa Clarita usually gets in the whole month of January (typical January total about 4.5 in).

The three most extreme on record

1 5.30 in Jan 10, 1995

2 5.20 in Jan 5, 2008

3 5.17 in Jan 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.

normal range of daily temperatureshottest ever recordedcoldest ever recorded

Santa Clarita's record heat sits well above even a hot day for the season — September's 115°F is about 25°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, Santa Clarita's warmest days reach the low 90s°F and its coldest nights drop to the mid-40s°F. But across the record it has gone as high as 115°F and as low as 23°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 Newhall 5nw (NOAA GHCN station USC00046161), about 5 km from the city centre.

How we build these numbers →

← Santa Clarita city detail