Address reportCitiesCalifornia › Hayward

Hayward, CA

Earthquake hazard, typical weather and growing season from public federal data. Population 151,574.

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 Hayward address →

Typical weather

78.3° in September, 42.5° in December

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

MonthHighLowRainSnow
Jan58.6°42.6°3"0"
Feb61.4°44.4°3.17"0"
Mar65.1°46.4°2.52"0"
Apr67.7°48.3°1.22"0"
May71.1°51.9°0.5"0"
Jun75.3°54.7°0.16"0"
Jul77.9°56.8°0"0"
Aug78.2°57.1°0.02"0"
Sep78.3°56°0.1"0"
Oct73.3°52°0.69"0"
Nov64.6°46.2°1.59"0"
Dec58.4°42.5°2.97"0"

NOAA/NCEI 1991–2020 U.S. Climate Normals — station FREMONT, CA US, 7.8 mi away.

Growing season zone 9b

365 frost-free days

Last spring frost around n/a, first fall frost around n/a. 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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