Farmington, NM Lawn Care Calendar
In a typical year, put down crabgrass preventer in Farmington between Apr 10 and May 5. The best time to overseed is between Aug 5 and Sep 24. The last spring frost usually comes around Apr 29. Most lawns here are cool-season grass (tall fescue, Kentucky bluegrass, ryegrass).
Typical lawn care dates in Farmington
| Task | Typical window |
|---|---|
| Crabgrass preventer (pre-emergent)Crabgrass sprouts once soil stays above 55°F. Apply when soil reaches 50°F, before that happens. | Apr 10 – May 5 |
| Spring fertilizerA light feeding once soil warms past 55°F and the grass is actively growing. | Apr 28 – Jun 2 |
| Overseeding & seedingLate summer to early fall: seedlings need about 6–10 weeks of growth before the first frost. | Aug 5 – Sep 24 |
| Fall fertilizerThe most important feeding for cool-season grass, from early fall until soil cools to about 45°F. | Sep 13 – Nov 12 |
Median dates, 2016–2025, from NOAA weather data for Farmington. This year's dates can differ by a few weeks.
Month-by-month lawn care in Farmington
- JanuaryNo treatments due; mow as needed.
- FebruaryNo treatments due; mow as needed.
- MarchNo treatments due; mow as needed.
- AprilCrabgrass preventer (pre-emergent)Spring fertilizer
- MayCrabgrass preventer (pre-emergent)Spring fertilizer
- JuneSpring fertilizer
- JulyNo treatments due; mow as needed.
- AugustOverseeding & seeding
- SeptemberOverseeding & seedingFall fertilizer
- OctoberFall fertilizer
- NovemberFall fertilizer
- DecemberNo treatments due; mow as needed.
Soil temperature in Farmington by month
Average soil temperature 4 inches down, estimated from 2016–2025 weather. It bottoms out in January at 31°F and peaks in July at 78°F. Crabgrass preventer goes down when it reaches 50°F, usually around Apr 10.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 31°F | 36°F | 43°F | 50°F | 59°F | 72°F | 78°F | 76°F | 68°F | 55°F | 43°F | 34°F |
Farmington lawn timing, year by year
Over the last 10 years, soil in Farmington reached 50°F, the signal for crabgrass preventer, as early as Mar 15 (2017) and as late as Apr 26 (2023): 42 days apart. A fixed calendar date can't follow that, which is why the report above uses this year's soil temperature. Between the typical last spring frost (Apr 29) and first fall frost (Oct 19), the growing season lasts about 173 days.
| Year | Crabgrass window opened | Last spring frost | First fall frost |
|---|---|---|---|
| 2025 | Apr 10 | Apr 29 | Oct 29 |
| 2024 | Apr 13 | May 7 | Oct 31 |
| 2023 | Apr 26 | Apr 28 | Oct 13 |
| 2022 | Apr 18 | May 13 | Oct 25 |
| 2021 | Apr 4 | Apr 29 | Oct 16 |
| 2020 | Apr 6 | Apr 17 | Oct 26 |
| 2019 | Apr 17 | May 21 | Oct 11 |
| 2018 | Apr 7 | Apr 19 | Oct 15 |
| 2017 | Mar 15 | May 20 | Sep 25 |
| 2016 | Apr 9 | Apr 27 | Oct 20 |
Estimated from daily temperatures for Farmington. A dash means it didn't happen that year.
Growing warm-season grass in Farmington?
| Task | Typical window |
|---|---|
| Crabgrass preventer (pre-emergent) | Apr 10 – May 5 |
| Fertilizer | Jun 2 – Sep 7 |
| Seeding, sodding & plugging | Jun 2 – Aug 5 |
| Fall pre-emergent (winter weeds) | Sep 13 – Oct 4 |
Frequently asked questions
When should I apply pre-emergent in Farmington?
In a typical year, between Apr 10 and May 5. Put it down when soil reaches 50°F, before it stays above 55°F and crabgrass starts sprouting. Early springs move this up by a week or more, so check this year's soil temperature above.
When is the best time to plant grass seed in Farmington?
Early fall, typically Aug 5 – Sep 24, while soil cools from 65°F toward 50°F.
When is the last frost in Farmington?
The median last spring frost is Apr 29 and the median first fall frost is Oct 19 (2016–2025).
How long is the growing season in Farmington?
About 173 days, from the median last spring frost on Apr 29 to the median first fall frost on Oct 19 (2016–2025).
Lawn care guides
- When to apply pre-emergent
- Lawn fertilizer schedule
- When to overseed
- Soil temperature for lawns
- Fall lawn care checklist
Growing vegetables too? See the Farmington planting calendarfor when to start seeds and plant outside.
More New Mexico lawn calendars
Nearby cities in other states
- Grand Junction, CO 162 miles away · crabgrass preventer Apr 6 – May 1
- Flagstaff, AZ 219 miles away · crabgrass preventer May 15 – Jun 8
- Pueblo, CO 224 miles away · crabgrass preventer Apr 8 – May 4
- Colorado Springs, CO 236 miles away · crabgrass preventer Apr 25 – May 20