Redvale, CO frost dates
Last spring frostMay 25median date
First fall frostOct 1median date
Growing season129 daysfrost-free
Hardiness zone6bZone 6b
How Redvale compares
- In 8 years out of 10, the last spring frost in Redvale falls between May 7 and June 13, a 37-day window. The first fall frost falls between September 14 and October 14.
- The median last frost is 14 days later than the Colorado median of May 11.
- Its 129-day growing season is longer than 34% of the 374 Colorado places with a regular frost season (state median 146 days).
- The last frost is 33 days later than the zone 6b median of Apr 22. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 6b chart.
- The weather station records an average of 183 nights a year at or below 32°F.
- Compared with Grand Junction, CO, 98 km away, the last frost here is 32 days later than there and the growing season is 51 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | May 7 |
| 50% (median) | May 25 |
| 10% (safe for tender plants) | June 13 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | September 14 |
| 50% (median) | October 1 |
| 90% (late) | October 14 |
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 Redvale, CO
Redvale, CO frost dates — last frost May 25, first frost Oct 1, zone 6b. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Mar 2 to Mar 16Transplant outside: Apr 27 to May 11
Start indoors: Mar 16 to Mar 30Transplant outside: Jun 8 to Jun 22
Start indoors: Mar 16 to Mar 30Transplant outside: Jun 8 to Jun 22
Start indoors: Mar 30 to Apr 13Transplant outside: Jun 1 to Jun 15
Start indoors: Mar 30 to Apr 13Transplant outside: May 4 to May 18Sow outdoors: Apr 27 to Jun 1Plant for fall: Aug 6 to Sep 3
Start indoors: Mar 30 to Apr 13Transplant outside: Apr 27 to May 11Sow outdoors: Apr 27 to May 11Plant for fall: Jul 23 to Aug 13
Start indoors: Mar 30 to Apr 13Transplant outside: May 11 to May 25Plant for fall: Jun 25 to Jul 16
Start indoors: Mar 30 to Apr 13Transplant outside: May 4 to May 18Plant for fall: Jun 25 to Jul 16
Start indoors: Mar 30 to Apr 13Transplant outside: May 11 to May 25Plant for fall: Jun 25 to Jul 16
Start indoors: Apr 13 to Apr 27Transplant outside: Jun 15 to Jun 29Sow outdoors: Jun 15 to Jun 29
Start indoors: Apr 13 to Apr 27Transplant outside: Jun 1 to Jun 15
Sow outdoors: Apr 13 to May 4Plant for fall: Jul 9 to Jul 30
Sow outdoors: Apr 13 to May 4Plant for fall: Aug 6 to Aug 27
Sow outdoors: Apr 20 to Jun 1Plant for fall: Aug 20 to Sep 10
Start indoors: Apr 27 to May 4Transplant outside: Jun 8 to Jun 15Sow outdoors: Jun 1 to Jun 15Plant for fall: Jul 16 to Jul 30
Start indoors: Apr 27 to May 4Sow outdoors: Jun 1 to Jun 15Plant for fall: Jul 23 to Aug 6
Start indoors: Apr 27 to May 4Sow outdoors: Jun 1 to Jun 15
Start indoors: Apr 27 to May 4Transplant outside: Jun 8 to Jun 22
Sow outdoors: May 4 to Jun 1Plant for fall: Jul 9 to Jul 23
Sow outdoors: May 4 to Jun 1Plant for fall: Jul 23 to Aug 6
Sow outdoors: May 4 to May 25
Sow outdoors: May 11 to Jun 8Plant for fall: Jul 23 to Aug 6
Sow outdoors: May 11 to Jun 1Plant for fall: Aug 6 to Aug 27
Sow outdoors: Jun 1 to Jun 22Plant for fall: Jul 16 to Jul 30
Sow outdoors: Jun 1 to Jun 15
Transplant outside: Jun 8 to Jun 29
Plant for fall: Sep 17 to Oct 22
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Redvale, CO
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Mar 2 – Mar 16 | Apr 27 – May 11 | — | — |
| Peppers | Mar 16 – Mar 30 | Jun 8 – Jun 22 | — | — |
| Eggplant | Mar 16 – Mar 30 | Jun 8 – Jun 22 | — | — |
| Tomatoes | Mar 30 – Apr 13 | Jun 1 – Jun 15 | — | — |
| Lettuce | Mar 30 – Apr 13 | May 4 – May 18 | Apr 27 – Jun 1 | Aug 6 – Sep 3 |
| Kale | Mar 30 – Apr 13 | Apr 27 – May 11 | Apr 27 – May 11 | Jul 23 – Aug 13 |
| Broccoli | Mar 30 – Apr 13 | May 11 – May 25 | — | Jun 25 – Jul 16 |
| Cabbage | Mar 30 – Apr 13 | May 4 – May 18 | — | Jun 25 – Jul 16 |
| Cauliflower | Mar 30 – Apr 13 | May 11 – May 25 | — | Jun 25 – Jul 16 |
| Okra | Apr 13 – Apr 27 | Jun 15 – Jun 29 | Jun 15 – Jun 29 | — |
| Basil | Apr 13 – Apr 27 | Jun 1 – Jun 15 | — | — |
| Peas | — | — | Apr 13 – May 4 | Jul 9 – Jul 30 |
| Spinach | — | — | Apr 13 – May 4 | Aug 6 – Aug 27 |
| Radishes | — | — | Apr 20 – Jun 1 | Aug 20 – Sep 10 |
| Cucumbers | Apr 27 – May 4 | Jun 8 – Jun 15 | Jun 1 – Jun 15 | Jul 16 – Jul 30 |
| Zucchini & Summer Squash | Apr 27 – May 4 | — | Jun 1 – Jun 15 | Jul 23 – Aug 6 |
| Winter Squash & Pumpkins | Apr 27 – May 4 | — | Jun 1 – Jun 15 | — |
| Melons & Watermelon | Apr 27 – May 4 | Jun 8 – Jun 22 | — | — |
| Carrots | — | — | May 4 – Jun 1 | Jul 9 – Jul 23 |
| Beets | — | — | May 4 – Jun 1 | Jul 23 – Aug 6 |
| Potatoes | — | — | May 4 – May 25 | — |
| Swiss Chard | — | — | May 11 – Jun 8 | Jul 23 – Aug 6 |
| Cilantro | — | — | May 11 – Jun 1 | Aug 6 – Aug 27 |
| Green Beans | — | — | Jun 1 – Jun 22 | Jul 16 – Jul 30 |
| Sweet Corn | — | — | Jun 1 – Jun 15 | — |
| Sweet Potatoes | — | Jun 8 – Jun 29 | — | — |
| Garlic | — | — | — | Sep 17 – Oct 22 |
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 Norwood, CO weather station, 11 km away (elevation 7,021 ft (2,140 m)).
Frost dates near Redvale
- Norwood May 21 · Oct 1
- Naturita Apr 26 · Oct 18
- Nucla Apr 26 · Oct 18
- Placerville May 26 · Sep 29
- Montrose Apr 28 · Oct 14
- Bedrock May 11 · Oct 5
- Paradox May 11 · Oct 5
- Egnar Jun 3 · Sep 25
- Ridgway Jun 11 · Sep 13
- Telluride frost any month
Frequently asked questions
When is the last frost in Redvale, CO?
The median last spring frost in Redvale, CO is May 25. There is still about a 10% chance of frost after June 13, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Redvale, CO?
The median first fall frost is October 1, with about a 10% chance of frost before September 14.
How long is the growing season in Redvale, CO?
About 129 days between the median last spring frost and first fall frost.
What planting zone is Redvale, CO?
Redvale, CO is in USDA hardiness zone 6b.