Winter Prep Checklist for Modesto, CA
Here's the order to prep Modesto, CA for winter, set by local freeze data. Your first deadline is November 20 — prevent frozen pipes — and the sequence runs through the cold season into spring below.
Your winter prep order for Modesto
- NovemberNovember 20 — Prevent Frozen PipesSee details →
- DecemberDecember 5 — Store Your MotorcycleSee details →
- DecemberDecember 11 — Winterize SprinklersSee details →
- DecemberDecember 11 — Winterize Your RVSee details →
- DecemberDecember 14 — Winterize Your BoatSee details →
- DecemberDecember 21 — Test Your Car BatterySee details →
- JanuaryJanuary 31 — Test Your Sump PumpSee details →
All nine Modesto deadlines, from NOAA California freeze and snowfall normals, plotted across the season.
Dates are local deadlines derived from NOAA 1991–2020 freeze and snowfall normals for Modesto. Live outlooks on each linked page can move the urgency earlier.
How the order is set
Each task is pinned to Modesto's own NOAA 1991–2020 freeze and snowfall normals, then ordered by its local deadline. Sprinklers, RVs, and boats key off the first 28°F freeze; pipes and motorcycles off the first freezing night; snow blowers and roofs off the first plowable snow. Follow any link for the live outlook and a checklist. Helping family or friends nearby? Compare the full winter checklist for Mission Viejo and Monrovia.
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Winter prep in Modesto: related searches
This page answers the questions Modesto homeowners search every fall: when to winterize sprinklers in Modesto, when the first freeze usually hits California, when to blow out irrigation lines, protect pipes, and get the snow blower serviced — all from the nearest NOAA station, not a national average.
Data: NOAA 1991–2020 normals via Modesto City Co AP, live outlook by Open-Meteo. Sources · Methodology. Last updated: July 25, 2026.