Monticello, NM frost dates
Last spring frostMay 10median date
First fall frostOct 8median date
Growing season151 daysfrost-free
Hardiness zone7bZone 7b
How Monticello compares
- In 8 years out of 10, the last spring frost in Monticello falls between April 27 and May 22, a 25-day window. The first fall frost falls between September 26 and October 20.
- The median last frost is 7 days later than the New Mexico median of May 3.
- Its 151-day growing season is longer than 41% of the 349 New Mexico places with a regular frost season (state median 164 days).
- The last frost is 35 days later than the zone 7b median of Apr 5. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 7b chart.
- The weather station records an average of 166 nights a year at or below 32°F.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | April 27 |
| 50% (median) | May 10 |
| 10% (safe for tender plants) | May 22 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | September 26 |
| 50% (median) | October 8 |
| 90% (late) | October 20 |
Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.
Planting calendar for Monticello, NM
Monticello, NM frost dates — last frost May 10, first frost Oct 8, zone 7b. whenisthelastfrost.com
Crop
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Start indoors: Feb 15 to Mar 1Transplant outside: Apr 12 to Apr 26
Start indoors: Mar 1 to Mar 15Transplant outside: May 24 to Jun 7
Start indoors: Mar 1 to Mar 15Transplant outside: May 24 to Jun 7
Start indoors: Mar 15 to Mar 29Transplant outside: May 17 to May 31
Start indoors: Mar 15 to Mar 29Transplant outside: Apr 19 to May 3Sow outdoors: Apr 12 to May 17Plant for fall: Aug 13 to Sep 10
Start indoors: Mar 15 to Mar 29Transplant outside: Apr 12 to Apr 26Sow outdoors: Apr 12 to Apr 26Plant for fall: Jul 30 to Aug 20
Start indoors: Mar 15 to Mar 29Transplant outside: Apr 26 to May 10Plant for fall: Jul 2 to Jul 23
Start indoors: Mar 15 to Mar 29Transplant outside: Apr 19 to May 3Plant for fall: Jul 2 to Jul 23
Start indoors: Mar 15 to Mar 29Transplant outside: Apr 26 to May 10Plant for fall: Jul 2 to Jul 23
Start indoors: Mar 29 to Apr 12Transplant outside: May 31 to Jun 14Sow outdoors: May 31 to Jun 14
Start indoors: Mar 29 to Apr 12Transplant outside: May 17 to May 31
Sow outdoors: Mar 29 to Apr 19Plant for fall: Jul 16 to Aug 6
Sow outdoors: Mar 29 to Apr 19Plant for fall: Aug 13 to Sep 3
Sow outdoors: Apr 5 to May 17Plant for fall: Aug 27 to Sep 17
Start indoors: Apr 12 to Apr 19Transplant outside: May 24 to May 31Sow outdoors: May 17 to May 31Plant for fall: Jul 23 to Aug 6
Start indoors: Apr 12 to Apr 19Sow outdoors: May 17 to May 31Plant for fall: Jul 30 to Aug 13
Start indoors: Apr 12 to Apr 19Sow outdoors: May 17 to May 31
Start indoors: Apr 12 to Apr 19Transplant outside: May 24 to Jun 7
Sow outdoors: Apr 19 to May 17Plant for fall: Jul 16 to Jul 30
Sow outdoors: Apr 19 to May 17Plant for fall: Jul 30 to Aug 13
Sow outdoors: Apr 19 to May 10
Sow outdoors: Apr 26 to May 24Plant for fall: Jul 30 to Aug 13
Sow outdoors: Apr 26 to May 17Plant for fall: Aug 13 to Sep 3
Sow outdoors: May 17 to Jun 7Plant for fall: Jul 23 to Aug 6
Sow outdoors: May 17 to May 31
Transplant outside: May 24 to Jun 14
Plant for fall: Sep 24 to Oct 29
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Monticello, NM
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Feb 15 – Mar 1 | Apr 12 – Apr 26 | — | — |
| Peppers | Mar 1 – Mar 15 | May 24 – Jun 7 | — | — |
| Eggplant | Mar 1 – Mar 15 | May 24 – Jun 7 | — | — |
| Tomatoes | Mar 15 – Mar 29 | May 17 – May 31 | — | — |
| Lettuce | Mar 15 – Mar 29 | Apr 19 – May 3 | Apr 12 – May 17 | Aug 13 – Sep 10 |
| Kale | Mar 15 – Mar 29 | Apr 12 – Apr 26 | Apr 12 – Apr 26 | Jul 30 – Aug 20 |
| Broccoli | Mar 15 – Mar 29 | Apr 26 – May 10 | — | Jul 2 – Jul 23 |
| Cabbage | Mar 15 – Mar 29 | Apr 19 – May 3 | — | Jul 2 – Jul 23 |
| Cauliflower | Mar 15 – Mar 29 | Apr 26 – May 10 | — | Jul 2 – Jul 23 |
| Okra | Mar 29 – Apr 12 | May 31 – Jun 14 | May 31 – Jun 14 | — |
| Basil | Mar 29 – Apr 12 | May 17 – May 31 | — | — |
| Peas | — | — | Mar 29 – Apr 19 | Jul 16 – Aug 6 |
| Spinach | — | — | Mar 29 – Apr 19 | Aug 13 – Sep 3 |
| Radishes | — | — | Apr 5 – May 17 | Aug 27 – Sep 17 |
| Cucumbers | Apr 12 – Apr 19 | May 24 – May 31 | May 17 – May 31 | Jul 23 – Aug 6 |
| Zucchini & Summer Squash | Apr 12 – Apr 19 | — | May 17 – May 31 | Jul 30 – Aug 13 |
| Winter Squash & Pumpkins | Apr 12 – Apr 19 | — | May 17 – May 31 | — |
| Melons & Watermelon | Apr 12 – Apr 19 | May 24 – Jun 7 | — | — |
| Carrots | — | — | Apr 19 – May 17 | Jul 16 – Jul 30 |
| Beets | — | — | Apr 19 – May 17 | Jul 30 – Aug 13 |
| Potatoes | — | — | Apr 19 – May 10 | — |
| Swiss Chard | — | — | Apr 26 – May 24 | Jul 30 – Aug 13 |
| Cilantro | — | — | Apr 26 – May 17 | Aug 13 – Sep 3 |
| Green Beans | — | — | May 17 – Jun 7 | Jul 23 – Aug 6 |
| Sweet Corn | — | — | May 17 – May 31 | — |
| Sweet Potatoes | — | May 24 – Jun 14 | — | — |
| Garlic | — | — | — | Sep 24 – Oct 29 |
Dates come from the median frost dates and common extension-service timing. Adjust for your soil temperature, microclimate and the varieties you grow.
About these dates
Based on 1991–2020 NOAA climate normals for the Winston, NM weather station, 19 km away (elevation 6,198 ft (1,889 m)).
Frost dates near Monticello
- Winston May 10 · Oct 8
- Elephant Butte Mar 22 · Nov 9
- Truth Or Consequences Mar 30 · Nov 5
- Williamsburg Mar 30 · Nov 5
- Caballo Mar 25 · Nov 6
- Hillsboro Apr 23 · Oct 23
- Arrey Mar 25 · Nov 6
- Spaceport City Mar 13 · Nov 15
- Derry Mar 25 · Nov 6
- Garfield Mar 25 · Nov 6
Frequently asked questions
When is the last frost in Monticello, NM?
The median last spring frost in Monticello, NM is May 10. There is still about a 10% chance of frost after May 22, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Monticello, NM?
The median first fall frost is October 8, with about a 10% chance of frost before September 26.
How long is the growing season in Monticello, NM?
About 151 days between the median last spring frost and first fall frost.
What planting zone is Monticello, NM?
Monticello, NM is in USDA hardiness zone 7b.