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Weather extremes

How extreme does Santa Bárbara's weather get?

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

Based on 34 years of daily weather observations (1991–present), from the La Mesa Intl / Ramon Villeda Morales Intl station 68 km away. Updated through August 2025 — 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 Bárbara has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
109°F Sep 4, 2004

That is about 16°F hotter than a normal September afternoon in Santa Bárbara (typical high near 93°F).

The three most extreme on record

1 109°F Sep 4, 2004
2 109°F Mar 11, 2010
3 109°F Mar 12, 2010
❄️ Coldest night
50°F Feb 5, 1998

About 19°F colder than a normal February night in Santa Bárbara (typical low near 69°F).

The three most extreme on record

1 50°F Feb 5, 1998
2 52°F Jan 15, 1996
3 54°F Oct 16, 2014
🌧️ Most rain in one day
15.06 in Dec 13, 2011

More rain in a single day than Santa Bárbara usually gets in the whole month of December (typical December total about 3.8 in).

The three most extreme on record

1 15.06 in Dec 13, 2011
2 15.04 in Dec 25, 2013
3 14.21 in Nov 12, 2009

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°50°70°90°110°130° all-time high 109°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Santa Bárbara's record heat sits well above even a hot day for the season — September's 109°F is about 16°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 Bárbara's warmest days reach the mid-90s°F and its coldest nights drop to the high 60s°F. But across the record it has gone as high as 109°F and as low as 50°F. A single day has delivered over 15 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 — 1991–2020 normals computed from 29 years of daily observations at LA Mesa Intl / Ramon Villeda Morales Intl, a weather station, about 68 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →