WorkWindow

Outdoor Project Weather in Columbia, SC

This page runs Columbia'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: 208 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 — Oct, May, Apr Stain a Deck in Columbia →
Exterior Painting — Oct, May, Apr Paint Outside in Columbia →
Driveway Sealing — May, Sep, Oct Seal a Driveway in Columbia →
Concrete Pouring — Oct, May, Apr Pour Concrete in Columbia →
Roof Coating — Oct, May, Apr Coat a Roof in Columbia →
Lawn Seeding — Mar, Oct, Apr Seed a Lawn in Columbia →

Project weather, month by month

Workable days per month by task, from NOAA 1991–2020 normals for SANDHILL RSCH - ELGIN, SC US. Darker = more workable days.
TaskJanFebMarAprMayJunJulAugSepOctNovDec
Deck Staining 0 0 19 23 23 14 0 8 23 24 20 0
Exterior Painting 0 0 19 23 23 14 0 8 23 24 20 0
Driveway Sealing 0 0 0 13 23 14 0 8 23 17 0 0
Concrete Pouring 0 0 19 23 23 14 0 8 23 24 20 0
Roof Coating 0 0 19 23 23 14 0 8 23 24 20 0
Lawn Seeding 0 21 31 30 26 0 0 0 13 31 30 26

Season edges differ by task — that's the point of checking six at once. In Columbia the earliest opener starts around February and the last holdout closes after June. 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 — Columbia's longest season at 208 workable days.

Full 10-day checks

South Carolina

Climatology: NOAA 1991–2020 normals via SANDHILL RSCH - ELGIN, SC US (10.9 km from Columbia center); live outlook by Open-Meteo.