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City guide · Washington

Outdoor Project Weather in Bellevue, WA

One forecast, six label checks. Today's verdict for every task in Bellevue loads above; the matrix below shows the whole year at a glance, computed from NOAA 1991–2020 normals at Renton Muni Ap, Wa Us. The friendliest calendar here belongs to lawn seeding (288 workable days a year).

Six tasks · one forecast · Washington

JulyBest overall month
Lawn SeedingFriendliest task
1,018 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	—	Jul, Aug, Jun	Stain a Deck in Bellevue →
Exterior Painting	—	Jul, Aug, Jun	Paint Outside in Bellevue →
Driveway Sealing	—	Jul, Aug, Jun	Seal a Driveway in Bellevue →
Concrete Pouring	—	Jul, Aug, Jun	Pour Concrete in Bellevue →
Roof Coating	—	Jul, Aug, Jun	Coat a Roof in Bellevue →
Lawn Seeding	—	Mar, May, Jul	Seed a Lawn in Bellevue →

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

Project weather, month by month

Workable days per month by task, from NOAA 1991–2020 normals for RENTON MUNI AP, WA US. Darker = more workable days.
Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deck Staining	0	0	5	16	19	21	26	26	21	16	7	0
Exterior Painting	0	0	5	16	19	21	26	26	21	16	7	0
Driveway Sealing	0	0	0	0	7	21	26	26	21	1	0	0
Concrete Pouring	0	0	5	16	19	21	26	26	21	16	7	0
Roof Coating	0	0	5	16	19	21	26	26	21	16	7	0
Lawn Seeding	0	18	31	30	31	30	31	31	30	31	25	0

Which task gets the most weather in Bellevue?

Lawn Seeding288days/yr
Deck Staining157days/yr
Exterior Painting157days/yr
Concrete Pouring157days/yr
Roof Coating157days/yr
Driveway Sealing102days/yr

The composite season in Bellevue opens around February 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 Bellevue (288 workable days a year), then work down the matrix.

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Full 10-day checks

Washington

Climatology: NOAA 1991–2020 normals via RENTON MUNI AP, WA US (12.0 km from Bellevue center); live outlook by Open-Meteo.