Address reportCitiesCalifornia › San Bernardino

San Bernardino, CA

Earthquake hazard, typical weather and growing season from public federal data. Population 213,708.

Flood zone: it depends on the exact parcel

There is no such thing as a flood zone for a whole city. Two houses on the same street can sit in different zones, and it is the single fact here that changes most over a short distance. So this page does not guess one.

Look up a specific San Bernardino address →

Typical weather

81.8° in August, 28.7° in January

Thirty-year averages, not a forecast. Any individual year can differ substantially.

MonthHighLowRainSnow
Jan44.4°28.7°8.36"3"
Feb44.9°29.8°9.87"5.3"
Mar52°31.6°5.17"6.7"
Apr60°36.1°2.76"2.8"
May67°40.8°1.15"0.8"
Jun76.4°49.1°0.26"0"
Jul81.1°57.1°0.12"0"
Aug81.8°57.1°0.13"0"
Sep74.2°51.9°0.31"0"
Oct63°42.8°2.06"0"
Nov51.5°33.8°2.37"0.3"
Dec43°29.1°5.17"3.5"

NOAA/NCEI 1991–2020 U.S. Climate Normals — station LAKE ARROWHEAD, CA US, 9.5 mi away.

Growing season zone 10a

176 frost-free days

Last spring frost around May 5, first fall frost around November 2. Roughly half of years see frost outside that window.

2023 USDA Plant Hardiness Zone Map and NOAA/NCEI 1991–2020 frost normals.

What this page does not tell you

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