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City guide · Michigan

Outdoor Project Weather in South Lyon, MI

One forecast, six label checks. Today's verdict for every task in South Lyon loads above; the matrix below shows the whole year at a glance, computed from NOAA 1991–2020 normals at Ann Arbor U Of Mich, Mi Us. The friendliest calendar here belongs to lawn seeding (201 workable days a year).

Six tasks · one forecast · Michigan

AugustBest overall month
Lawn SeedingFriendliest task
698 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 South Lyon →
Exterior Painting	—	Aug, Jul, Sep	Paint Outside in South Lyon →
Driveway Sealing	—	Aug, Jul, Jun	Seal a Driveway in South Lyon →
Concrete Pouring	—	Aug, Jul, Sep	Pour Concrete in South Lyon →
Roof Coating	—	Aug, Jul, Sep	Coat a Roof in South Lyon →
Lawn Seeding	—	May, Jul, Aug	Seed a Lawn in South Lyon →

Keep the tour going — compare this calendar with Saginaw, MI behind you or Sterling Heights, MI up next.

Project weather, month by month

Workable days per month by task, from NOAA 1991–2020 normals for ANN ARBOR U OF MICH, MI US. Darker = more workable days.
Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deck Staining	0	0	0	2	17	18	19	20	19	11	0	0
Exterior Painting	0	0	0	2	17	18	19	20	19	11	0	0
Driveway Sealing	0	0	0	0	3	18	19	20	13	0	0	0
Concrete Pouring	0	0	0	2	17	18	19	20	19	11	0	0
Roof Coating	0	0	0	2	17	18	19	20	19	11	0	0
Lawn Seeding	0	0	0	16	31	30	31	31	30	31	1	0

Which task gets the most weather in South Lyon?

Lawn Seeding201days/yr
Deck Staining106days/yr
Exterior Painting106days/yr
Concrete Pouring106days/yr
Roof Coating106days/yr
Driveway Sealing73days/yr

The composite season in South Lyon opens around April and closes after October: 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 South Lyon (201 workable days a year), then work down the matrix.

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Full 10-day checks

Michigan

Climatology: NOAA 1991–2020 normals via ANN ARBOR U OF MICH, MI US (18.2 km from South Lyon center); live outlook by Open-Meteo.