WorkWindow

Outdoor Project Weather in Grand Junction, CO

This page runs Grand Junction'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: 112 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 — May, Sep, Jun Stain a Deck in Grand Junction →
Exterior Painting — May, Sep, Jun Paint Outside in Grand Junction →
Driveway Sealing — Sep, Jun, Aug Seal a Driveway in Grand Junction →
Concrete Pouring — May, Sep, Jun Pour Concrete in Grand Junction →
Roof Coating — May, Sep, Jun Coat a Roof in Grand Junction →
Lawn Seeding — May, Apr, Oct Seed a Lawn in Grand Junction →

Project weather, month by month

Workable days per month by task, from NOAA 1991–2020 normals for GRAND JUNCTION WALKER FLD, CO US. Darker = more workable days.
TaskJanFebMarAprMayJunJulAugSepOctNovDec
Deck Staining 0 0 0 5 25 15 0 9 23 11 0 0
Exterior Painting 0 0 0 5 25 15 0 9 23 11 0 0
Driveway Sealing 0 0 0 0 6 15 0 9 17 0 0 0
Concrete Pouring 0 0 0 5 25 15 0 9 23 11 0 0
Roof Coating 0 0 0 5 25 15 0 9 23 11 0 0
Lawn Seeding 0 0 0 29 31 3 0 0 23 26 0 0

Season edges differ by task — that's the point of checking six at once. In Grand Junction 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 — Grand Junction's longest season at 112 workable days.

Full 10-day checks

Colorado

Climatology: NOAA 1991–2020 normals via GRAND JUNCTION WALKER FLD, CO US (5.7 km from Grand Junction center); live outlook by Open-Meteo.