Skip to content

City guide · Maryland

Outdoor Project Weather in Baltimore, MD

This page runs Baltimore'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: 204 workable days a year.

Six tasks · one forecast · Maryland

SeptemberBest overall month
Lawn SeedingFriendliest task
941 task-daysWorkable task-days/yr
6Tasks tracked
Average of all six tasks

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.
Task	Today	Best months here	Full 10-day check
Deck Staining	—	Oct, Sep, Aug	Stain a Deck in Baltimore →
Exterior Painting	—	Oct, Sep, Aug	Paint Outside in Baltimore →
Driveway Sealing	—	Sep, Aug, May	Seal a Driveway in Baltimore →
Concrete Pouring	—	Oct, Sep, Aug	Pour Concrete in Baltimore →
Roof Coating	—	Oct, Sep, Aug	Coat a Roof in Baltimore →
Lawn Seeding	—	May, Oct, Mar	Seed a Lawn in Baltimore →

Keep the tour going — compare this calendar with Annapolis, MD behind you or Columbia, MD up next.

Project weather, month by month

Workable days per month by task, from NOAA 1991–2020 normals for MD SCI CTR BALTIMORE, MD US. Darker = more workable days.
Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deck Staining	0	0	7	19	20	19	8	22	22	22	17	0
Exterior Painting	0	0	7	19	20	19	8	22	22	22	17	0
Driveway Sealing	0	0	0	6	20	19	8	22	22	16	0	0
Concrete Pouring	0	0	7	19	20	19	8	22	22	22	17	0
Roof Coating	0	0	7	19	20	19	8	22	22	22	17	0
Lawn Seeding	0	0	30	30	31	13	0	1	30	31	30	8

Which task gets the most weather in Baltimore?

Lawn Seeding204days/yr
Deck Staining156days/yr
Exterior Painting156days/yr
Concrete Pouring156days/yr
Roof Coating156days/yr
Driveway Sealing113days/yr

Season edges differ by task — that's the point of checking six at once. In Baltimore the earliest opener starts around March and the last holdout closes after November. 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 — Baltimore's longest season at 204 workable days.

People also search for

Full 10-day checks

Maryland

Climatology: NOAA 1991–2020 normals via MD SCI CTR BALTIMORE, MD US (2.7 km from Baltimore center); live outlook by Open-Meteo.