Frost dates for 84534Montezuma Creek, UT
The average last spring frost in Montezuma Creek is May 2 and the average first fall frost is October 10, giving a typical growing season of about 159 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 2
- Average first fall frost
- Oct 10
- Growing season
- 159 days
Safer after May 21 (1-in-10 risk)
Possible by Sep 27 (1-in-10 risk)
Last frost typically in 187 days
Frost risk by date
NOAA reports frost dates as probabilities. The middle date is the average (a 50% chance). For spring, the 10% date is a safer planting date: frost after it happens in about 1 year in 10. Light frost (36°F) can damage tender plants; a hard freeze (28°F) kills most annuals.
| Temperature | Last spring: 90% / 50% / 10% chance | First fall: 10% / 50% / 90% chance | Growing season (50%) | Years with at least one |
|---|---|---|---|---|
| Light frost (36°F) | May 2 · May 16 · Jun 4 | Sep 21 · Oct 2 · Oct 15 | 138 days | 100% |
| Frost / freeze (32°F) | Apr 19 · May 2 · May 21 | Sep 27 · Oct 10 · Oct 24 | 159 days | 100% |
| Hard freeze (28°F) | Apr 6 · Apr 21 · May 7 | Oct 5 · Oct 20 · Nov 4 | 180 days | 100% |
Planting calendar for Montezuma Creek
Planting windows from the University of Maryland Extension calendar, shifted to your average frost dates. Use them as a starting point and adjust for seed packet instructions and local conditions.
| Crop | Task | Window |
|---|---|---|
| Tomatoes | Start seeds indoors | Apr 1 – Jun 7 |
| Tomatoes | Transplant outdoors | May 18 – Jun 20 |
| Peppers | Start seeds indoors | Apr 1 – May 2 |
| Peppers | Transplant outdoors | Jun 1 – Jul 2 |
| Eggplant | Start seeds indoors | Apr 18 – May 17 |
| Eggplant | Transplant outdoors | Jun 1 – Jul 2 |
| Cucumbers | Sow outdoors | Jun 1 – Jun 30 |
| Summer squash | Sow outdoors | May 18 – Jul 2 |
| Winter squash & pumpkins | Sow outdoors | Jun 1 – Jul 2 |
| Snap beans | Sow outdoors | May 18 – Jul 23 |
| Sweet corn | Sow outdoors | May 18 – Jun 20 |
| Watermelon & cantaloupe | Sow outdoors | Jun 1 – Jul 2 |
| Okra | Sow outdoors | May 25 – Jun 17 |
| Peas | Sow outdoors (spring) | Apr 1 – May 17 |
| Potatoes | Plant outdoors (spring) | Apr 1 – Jun 1 |
| Onions | Start seeds indoors (spring) | Feb 18 – Mar 17 |
| Onions | Transplant outdoors (spring) | Apr 18 – May 17 |
| Broccoli | Start seeds indoors (spring) | Mar 14 – Apr 17 |
| Broccoli | Transplant outdoors (spring) | Apr 18 – May 17 |
| Broccoli | Start seeds indoors (fall) | Jun 10 – Jun 20 |
| Broccoli | Transplant outdoors (fall) | Jul 10 – Jul 21 |
| Cabbage | Start seeds indoors (spring) | Mar 4 – Apr 1 |
| Cabbage | Transplant outdoors (spring) | Apr 1 – May 2 |
| Cabbage | Start seeds indoors (fall) | May 31 – Jun 30 |
| Cabbage | Transplant outdoors (fall) | Jun 30 – Jul 31 |
| Leaf lettuce | Sow outdoors (spring) | Apr 1 – Jun 17 |
| Leaf lettuce | Sow outdoors (fall) | Jun 30 – Aug 16 |
| Spinach | Sow outdoors (spring) | Mar 25 – May 8 |
| Spinach | Sow outdoors (fall) | Jul 17 – Aug 21 |
| Radishes | Sow outdoors (spring) | Apr 1 – May 22 |
| Radishes | Sow outdoors (fall) | Jun 30 – Aug 31 |
| Kale | Sow outdoors (spring) | Apr 18 – May 8 |
| Kale | Sow outdoors (fall) | Jun 23 – Jul 31 |
| Carrots | Sow outdoors (spring) | May 2 – Jun 17 |
| Carrots | Sow outdoors (fall) | May 31 – Jul 16 |
| Garlic | Plant outdoors (fall) | Sep 30 – Oct 31 |
Where these dates come from
ZIP code 84534 is matched to the NOAA station Hovenweep Nm, UT, 14.9 km away, at 5,240 ft elevation (535 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Hovenweep Nm, UT (used) | 5,240 ft | May 2 | Oct 10 |
| Teec Nos Pos, AZ | 5,290 ft | Apr 11 | Nov 1 |
| Bluff, UT | 4,319 ft | Apr 24 | Oct 13 |
| Cortez Montezuma Co Ap, CO | 5,914 ft | May 27 | Sep 28 |
Frost dates near Montezuma Creek
- Aneth, UT 84510 · last Apr 24, first Oct 13
- Towaoc, CO 81334 · last May 27, first Sep 28
- Bluff, UT 84512 · last Apr 24, first Oct 13
- Pleasant View, CO 81331 · last May 17, first Oct 9
- Yellow Jacket, CO 81335 · last May 17, first Oct 9
- Cortez, CO 81321 · last May 12, first Oct 7
- Lewis, CO 81327 · last May 17, first Oct 9
- Blanding, UT 84511 · last Apr 28, first Oct 21
Frequently asked questions
- When is the last frost in Montezuma Creek, UT?
- For ZIP code 84534, the average last spring frost (32°F) is May 2, based on NOAA 1991-2020 climate normals for the Hovenweep Nm, UT weather station. There is a 1-in-10 chance of a frost after May 21.
- When is the first frost in Montezuma Creek, UT?
- The average first fall frost (32°F) is October 10. There is a 1-in-10 chance of frost by September 27, so tender plants are at risk from that point on.
- How long is the growing season in 84534?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 159 days long.
- Are these frost dates a forecast?
- No. They are 30-year averages and probabilities from NOAA weather station records. Use them to plan, then watch your local forecast before planting tender crops or leaving them uncovered.