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City guide · Virginia

Outdoor Project Weather in Arlington, VA

One forecast, six label checks. Today's verdict for every task in Arlington loads above; the matrix below shows the whole year at a glance, computed from NOAA 1991–2020 normals at Washington Reagan Ap, Va Us. The friendliest calendar here belongs to lawn seeding (203 workable days a year).

Six tasks · one forecast · Virginia

SeptemberBest overall month
Lawn SeedingFriendliest task
989 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, Aug, Sep	Stain a Deck in Arlington →
Exterior Painting	—	Oct, Aug, Sep	Paint Outside in Arlington →
Driveway Sealing	—	Aug, Sep, Jul	Seal a Driveway in Arlington →
Concrete Pouring	—	Oct, Aug, Sep	Pour Concrete in Arlington →
Roof Coating	—	Oct, Aug, Sep	Coat a Roof in Arlington →
Lawn Seeding	—	May, Oct, Apr	Seed a Lawn in Arlington →

Neighbors on the route: Alexandria, VA’s outdoor work windows and Charlottesville, VA’s six-task outlook.

Project weather, month by month

Workable days per month by task, from NOAA 1991–2020 normals for WASHINGTON REAGAN AP, VA US. Darker = more workable days.
Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deck Staining	0	0	6	19	20	19	21	22	22	22	14	0
Exterior Painting	0	0	6	19	20	19	21	22	22	22	14	0
Driveway Sealing	0	0	0	7	20	19	21	22	22	15	0	0
Concrete Pouring	0	0	6	19	20	19	21	22	22	22	14	0
Roof Coating	0	0	6	19	20	19	21	22	22	22	14	0
Lawn Seeding	0	0	29	30	31	14	0	0	28	31	30	10

Which task gets the most weather in Arlington?

Lawn Seeding203days/yr
Deck Staining165days/yr
Exterior Painting165days/yr
Concrete Pouring165days/yr
Roof Coating165days/yr
Driveway Sealing126days/yr

The composite season in Arlington opens around March and closes after November: coatings wait on warm nights, concrete on freeze-free 48-hour stretches, seeding on the 55–80°F germination band. Between those bookends, the right question is which task fits this week — which is what the verdicts above answer.

Deepest calendar first: start with lawn seeding in Arlington (203 workable days a year), then work down the matrix.

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Full 10-day checks

Virginia

Climatology: NOAA 1991–2020 normals via WASHINGTON REAGAN AP, VA US (6.7 km from Arlington center); live outlook by Open-Meteo.