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City guide · Colorado

Outdoor Project Weather in Lafayette, CO

One forecast, six label checks. Today's verdict for every task in Lafayette loads above; the matrix below shows the whole year at a glance, computed from NOAA 1991–2020 normals at Northglenn, Co Us. The friendliest calendar here belongs to lawn seeding (101 workable days a year).

Six tasks · one forecast · Colorado

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

Keep the tour going — compare this calendar with Highlands Ranch, CO behind you or Lakewood, CO up next.

Project weather, month by month

Workable days per month by task, from NOAA 1991–2020 normals for NORTHGLENN, CO US. Darker = more workable days.
Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deck Staining	0	0	0	0	19	23	0	20	24	6	0	0
Exterior Painting	0	0	0	0	19	23	0	20	24	6	0	0
Driveway Sealing	0	0	0	0	0	22	0	20	10	0	0	0
Concrete Pouring	0	0	0	0	19	23	0	20	24	6	0	0
Roof Coating	0	0	0	0	19	23	0	20	24	6	0	0
Lawn Seeding	0	0	0	14	31	13	0	0	23	20	0	0

Which task gets the most weather in Lafayette?

Lawn Seeding101days/yr
Deck Staining92days/yr
Exterior Painting92days/yr
Concrete Pouring92days/yr
Roof Coating92days/yr
Driveway Sealing52days/yr

The composite season in Lafayette opens around April and closes after September: 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 Lafayette (101 workable days a year), then work down the matrix.

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Full 10-day checks

Colorado

Climatology: NOAA 1991–2020 normals via NORTHGLENN, CO US (12.9 km from Lafayette center); live outlook by Open-Meteo.