Skip to content

City guide · Washington

Outdoor Project Weather in Bellingham, WA

This page runs Bellingham'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: 279 workable days a year.

Six tasks · one forecast · Washington

JulyBest overall month
Lawn SeedingFriendliest task
930 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	—	Aug, Jul, Sep	Stain a Deck in Bellingham →
Exterior Painting	—	Aug, Jul, Sep	Paint Outside in Bellingham →
Driveway Sealing	—	Aug, Jul, Jun	Seal a Driveway in Bellingham →
Concrete Pouring	—	Aug, Jul, Sep	Pour Concrete in Bellingham →
Roof Coating	—	Aug, Jul, Sep	Coat a Roof in Bellingham →
Lawn Seeding	—	Mar, May, Jul	Seed a Lawn in Bellingham →

City-to-city context helps: browse outdoor project weather in Bellevue, WA one stop back, or continue to Bremerton, WA’s project calendar.

Project weather, month by month

Workable days per month by task, from NOAA 1991–2020 normals for BELLINGHAM 3 SSW, WA US. Darker = more workable days.
Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deck Staining	0	0	0	15	19	20	25	25	21	15	3	0
Exterior Painting	0	0	0	15	19	20	25	25	21	15	3	0
Driveway Sealing	0	0	0	0	0	17	25	25	12	0	0	0
Concrete Pouring	0	0	0	15	19	20	25	25	21	15	3	0
Roof Coating	0	0	0	15	19	20	25	25	21	15	3	0
Lawn Seeding	0	9	31	30	31	30	31	31	30	31	25	0

Which task gets the most weather in Bellingham?

Lawn Seeding279days/yr
Deck Staining143days/yr
Exterior Painting143days/yr
Concrete Pouring143days/yr
Roof Coating143days/yr
Driveway Sealing79days/yr

Season edges differ by task — that's the point of checking six at once. In Bellingham the earliest opener starts around February 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 — Bellingham's longest season at 279 workable days.

People also search for

Full 10-day checks

Washington

Climatology: NOAA 1991–2020 normals via BELLINGHAM 3 SSW, WA US (5.4 km from Bellingham center); live outlook by Open-Meteo.