Frost dates for 81411Bedrock, CO
The average last spring frost in Bedrock is May 17 and the average first fall frost is October 6, giving a typical growing season of about 141 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 17
- Average first fall frost
- Oct 6
- Growing season
- 141 days
Safer after Jun 5 (1-in-10 risk)
Possible by Sep 24 (1-in-10 risk)
Last frost typically in 202 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 14 · May 30 · Jun 14 | Sep 15 · Sep 28 · Oct 10 | 120 days | 100% |
| Frost / freeze (32°F) | Apr 30 · May 17 · Jun 5 | Sep 24 · Oct 6 · Oct 19 | 141 days | 100% |
| Hard freeze (28°F) | Apr 19 · May 4 · May 23 | Oct 1 · Oct 14 · Oct 28 | 161 days | 100% |
Planting calendar for Bedrock
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 16 – Jun 22 |
| Tomatoes | Transplant outdoors | Jun 2 – Jun 16 |
| Peppers | Start seeds indoors | Apr 16 – May 17 |
| Peppers | Transplant outdoors | Jun 16 – Jul 17 |
| Eggplant | Start seeds indoors | May 3 – Jun 1 |
| Eggplant | Transplant outdoors | Jun 16 – Jul 17 |
| Cucumbers | Sow outdoors | Jun 16 – Jun 26 |
| Summer squash | Sow outdoors | Jun 2 – Jul 17 |
| Winter squash & pumpkins | Sow outdoors | Jun 16 – Jul 17 |
| Snap beans | Sow outdoors | Jun 2 – Jul 19 |
| Sweet corn | Sow outdoors | Jun 2 – Jun 16 |
| Watermelon & cantaloupe | Sow outdoors | Jun 16 – Jul 17 |
| Okra | Sow outdoors | Jun 9 – Jul 2 |
| Peas | Sow outdoors (spring) | Apr 16 – Jun 1 |
| Potatoes | Plant outdoors (spring) | Apr 16 – Jun 16 |
| Onions | Start seeds indoors (spring) | Mar 5 – Apr 1 |
| Onions | Transplant outdoors (spring) | May 3 – Jun 1 |
| Broccoli | Start seeds indoors (spring) | Mar 29 – May 2 |
| Broccoli | Transplant outdoors (spring) | May 3 – Jun 1 |
| Broccoli | Start seeds indoors (fall) | Jun 6 – Jun 16 |
| Broccoli | Transplant outdoors (fall) | Jul 6 – Jul 17 |
| Cabbage | Start seeds indoors (spring) | Mar 19 – Apr 16 |
| Cabbage | Transplant outdoors (spring) | Apr 16 – May 17 |
| Cabbage | Start seeds indoors (fall) | May 27 – Jun 26 |
| Cabbage | Transplant outdoors (fall) | Jun 26 – Jul 27 |
| Leaf lettuce | Sow outdoors (spring) | Apr 16 – Jul 2 |
| Leaf lettuce | Sow outdoors (fall) | Jun 26 – Aug 12 |
| Spinach | Sow outdoors (spring) | Apr 9 – May 23 |
| Spinach | Sow outdoors (fall) | Jul 13 – Aug 17 |
| Radishes | Sow outdoors (spring) | Apr 16 – Jun 6 |
| Radishes | Sow outdoors (fall) | Jun 26 – Aug 27 |
| Kale | Sow outdoors (spring) | May 3 – May 23 |
| Kale | Sow outdoors (fall) | Jun 19 – Jul 27 |
| Carrots | Sow outdoors (spring) | May 17 – Jul 2 |
| Carrots | Sow outdoors (fall) | May 27 – Jul 12 |
| Garlic | Plant outdoors (fall) | Sep 26 – Oct 27 |
Where these dates come from
ZIP code 81411 is matched to the NOAA station La Sal 1Sw, UT, 25.6 km away, at 6,787 ft elevation (380 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| La Sal 1Sw, UT (used) | 6,787 ft | May 17 | Oct 6 |
| Paradox 2N, CO | 5,447 ft | May 11 | Oct 5 |
| Uravan, CO | 5,021 ft | Apr 26 | Oct 18 |
| Gateway 1Ene, CO | 4,671 ft | Apr 20 | Oct 21 |
Frost dates near Bedrock
- Paradox, CO 81429 · last May 11, first Oct 5
- La Sal, UT 84530 · last May 17, first Oct 6
- Egnar, CO 81325 · last Jun 3, first Sep 25
- Naturita, CO 81422 · last Apr 26, first Oct 18
- Nucla, CO 81424 · last Apr 26, first Oct 18
- Monticello, UT 84535 · last May 19, first Oct 2
- Gateway, CO 81522 · last Apr 20, first Oct 21
- Redvale, CO 81431 · last May 25, first Oct 1
Frequently asked questions
- When is the last frost in Bedrock, CO?
- For ZIP code 81411, the average last spring frost (32°F) is May 17, based on NOAA 1991-2020 climate normals for the La Sal 1Sw, UT weather station. There is a 1-in-10 chance of a frost after June 5.
- When is the first frost in Bedrock, CO?
- The average first fall frost (32°F) is October 6. There is a 1-in-10 chance of frost by September 24, so tender plants are at risk from that point on.
- How long is the growing season in 81411?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 141 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.