WorkWindow

Outdoor Project Weather in Kennewick, WA

This page runs Kennewick's forecast against all six task rulesets at once. Verdicts load live above; the month-by-month matrix below — built from NOAA 1991–2020 normals — shows when each job's season opens. Lawn Seeding gets the most calendar here: 178 workable days a year.

Today at a glance

Verdicts load live from the 10-day forecast; without JavaScript this column stays blank and the year-round matrix below still answers the planning question.
TaskTodayBest months hereFull 10-day check
Deck Staining — Sep, Jun, May Stain a Deck in Kennewick →
Exterior Painting — Sep, Jun, May Paint Outside in Kennewick →
Driveway Sealing — Jun, Sep, May Seal a Driveway in Kennewick →
Concrete Pouring — Sep, Jun, May Pour Concrete in Kennewick →
Roof Coating — Sep, Jun, May Coat a Roof in Kennewick →
Lawn Seeding — May, Oct, Apr Seed a Lawn in Kennewick →

Project weather, month by month

Workable days per month by task, from NOAA 1991–2020 normals for KENNEWICK, WA US. Darker = more workable days.
TaskJanFebMarAprMayJunJulAugSepOctNovDec
Deck Staining 0 0 0 21 25 25 8 13 27 20 0 0
Exterior Painting 0 0 0 21 25 25 8 13 27 20 0 0
Driveway Sealing 0 0 0 0 14 25 8 13 24 0 0 0
Concrete Pouring 0 0 0 21 25 25 8 13 27 20 0 0
Roof Coating 0 0 0 21 25 25 8 13 27 20 0 0
Lawn Seeding 0 0 19 30 31 26 0 0 27 31 14 0

Season edges differ by task — that's the point of checking six at once. In Kennewick the earliest opener starts around March and the last holdout closes after October. A week that fails the paint rules on humidity can still pass seeding, and a frost that ends concrete season leaves sealing untouched until nights slip under 50°F.

If you only open one full check, make it lawn seeding — Kennewick's longest season at 178 workable days.

Full 10-day checks

Washington

Climatology: NOAA 1991–2020 normals via KENNEWICK, WA US (5.7 km from Kennewick center); live outlook by Open-Meteo.