WorkWindow

Outdoor Project Weather in Dayton, OH

This page runs Dayton'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: 157 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 — Aug, Sep, Jul Stain a Deck in Dayton →
Exterior Painting — Aug, Sep, Jul Paint Outside in Dayton →
Driveway Sealing — Aug, Sep, Jul Seal a Driveway in Dayton →
Concrete Pouring — Aug, Sep, Jul Pour Concrete in Dayton →
Roof Coating — Aug, Sep, Jul Coat a Roof in Dayton →
Lawn Seeding — May, Oct, Apr Seed a Lawn in Dayton →

Project weather, month by month

Workable days per month by task, from NOAA 1991–2020 normals for DAYTON MCD, OH US. Darker = more workable days.
TaskJanFebMarAprMayJunJulAugSepOctNovDec
Deck Staining 0 0 0 10 18 18 21 22 22 18 0 0
Exterior Painting 0 0 0 10 18 18 21 22 22 18 0 0
Driveway Sealing 0 0 0 0 14 18 21 22 21 0 0 0
Concrete Pouring 0 0 0 10 18 18 21 22 22 18 0 0
Roof Coating 0 0 0 10 18 18 21 22 22 18 0 0
Lawn Seeding 0 0 1 30 31 20 0 5 30 31 9 0

Season edges differ by task — that's the point of checking six at once. In Dayton the earliest opener starts around April 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 — Dayton's longest season at 157 workable days.

Full 10-day checks

Ohio

Climatology: NOAA 1991–2020 normals via DAYTON MCD, OH US (0.9 km from Dayton center); live outlook by Open-Meteo.