Placerville, CO frost dates
Last spring frostMay 26median date
First fall frostSep 29median date
Growing season126 daysfrost-free
Hardiness zone5bZone 5b
How Placerville compares
- In 8 years out of 10, the last spring frost in Placerville falls between May 14 and June 6, a 23-day window. The first fall frost falls between September 17 and October 10.
- The median last frost is 15 days later than the Colorado median of May 11.
- Its 126-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 25 days later than the zone 5b median of May 1. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 5b chart.
- The weather station records an average of 202 nights a year at or below 32°F.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | May 14 |
| 50% (median) | May 26 |
| 10% (safe for tender plants) | June 6 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | September 17 |
| 50% (median) | September 29 |
| 90% (late) | October 10 |
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 Placerville, CO
Placerville, CO frost dates — last frost May 26, first frost Sep 29, zone 5b. whenisthelastfrost.com
Crop
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Start indoors: Mar 3 to Mar 17Transplant outside: Apr 28 to May 12
Start indoors: Mar 17 to Mar 31Transplant outside: Jun 9 to Jun 23
Start indoors: Mar 17 to Mar 31Transplant outside: Jun 9 to Jun 23
Start indoors: Mar 31 to Apr 14Transplant outside: Jun 2 to Jun 16
Start indoors: Mar 31 to Apr 14Transplant outside: May 5 to May 19Sow outdoors: Apr 28 to Jun 2Plant for fall: Aug 4 to Sep 1
Start indoors: Mar 31 to Apr 14Transplant outside: Apr 28 to May 12Sow outdoors: Apr 28 to May 12Plant for fall: Jul 21 to Aug 11
Start indoors: Mar 31 to Apr 14Transplant outside: May 12 to May 26Plant for fall: Jun 23 to Jul 14
Start indoors: Mar 31 to Apr 14Transplant outside: May 5 to May 19Plant for fall: Jun 23 to Jul 14
Start indoors: Mar 31 to Apr 14Transplant outside: May 12 to May 26Plant for fall: Jun 23 to Jul 14
Start indoors: Apr 14 to Apr 28Transplant outside: Jun 16 to Jun 30Sow outdoors: Jun 16 to Jun 30
Start indoors: Apr 14 to Apr 28Transplant outside: Jun 2 to Jun 16
Sow outdoors: Apr 14 to May 5Plant for fall: Jul 7 to Jul 28
Sow outdoors: Apr 14 to May 5Plant for fall: Aug 4 to Aug 25
Sow outdoors: Apr 21 to Jun 2Plant for fall: Aug 18 to Sep 8
Start indoors: Apr 28 to May 5Transplant outside: Jun 9 to Jun 16Sow outdoors: Jun 2 to Jun 16Plant for fall: Jul 14 to Jul 28
Start indoors: Apr 28 to May 5Sow outdoors: Jun 2 to Jun 16Plant for fall: Jul 21 to Aug 4
Start indoors: Apr 28 to May 5Sow outdoors: Jun 2 to Jun 16
Start indoors: Apr 28 to May 5Transplant outside: Jun 9 to Jun 23
Sow outdoors: May 5 to Jun 2Plant for fall: Jul 7 to Jul 21
Sow outdoors: May 5 to Jun 2Plant for fall: Jul 21 to Aug 4
Sow outdoors: May 5 to May 26
Sow outdoors: May 12 to Jun 9Plant for fall: Jul 21 to Aug 4
Sow outdoors: May 12 to Jun 2Plant for fall: Aug 4 to Aug 25
Sow outdoors: Jun 2 to Jun 23Plant for fall: Jul 14 to Jul 28
Sow outdoors: Jun 2 to Jun 16
Transplant outside: Jun 9 to Jun 30
Plant for fall: Sep 15 to Oct 20
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Placerville, CO
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Mar 3 – Mar 17 | Apr 28 – May 12 | — | — |
| Peppers | Mar 17 – Mar 31 | Jun 9 – Jun 23 | — | — |
| Eggplant | Mar 17 – Mar 31 | Jun 9 – Jun 23 | — | — |
| Tomatoes | Mar 31 – Apr 14 | Jun 2 – Jun 16 | — | — |
| Lettuce | Mar 31 – Apr 14 | May 5 – May 19 | Apr 28 – Jun 2 | Aug 4 – Sep 1 |
| Kale | Mar 31 – Apr 14 | Apr 28 – May 12 | Apr 28 – May 12 | Jul 21 – Aug 11 |
| Broccoli | Mar 31 – Apr 14 | May 12 – May 26 | — | Jun 23 – Jul 14 |
| Cabbage | Mar 31 – Apr 14 | May 5 – May 19 | — | Jun 23 – Jul 14 |
| Cauliflower | Mar 31 – Apr 14 | May 12 – May 26 | — | Jun 23 – Jul 14 |
| Okra | Apr 14 – Apr 28 | Jun 16 – Jun 30 | Jun 16 – Jun 30 | — |
| Basil | Apr 14 – Apr 28 | Jun 2 – Jun 16 | — | — |
| Peas | — | — | Apr 14 – May 5 | Jul 7 – Jul 28 |
| Spinach | — | — | Apr 14 – May 5 | Aug 4 – Aug 25 |
| Radishes | — | — | Apr 21 – Jun 2 | Aug 18 – Sep 8 |
| Cucumbers | Apr 28 – May 5 | Jun 9 – Jun 16 | Jun 2 – Jun 16 | Jul 14 – Jul 28 |
| Zucchini & Summer Squash | Apr 28 – May 5 | — | Jun 2 – Jun 16 | Jul 21 – Aug 4 |
| Winter Squash & Pumpkins | Apr 28 – May 5 | — | Jun 2 – Jun 16 | — |
| Melons & Watermelon | Apr 28 – May 5 | Jun 9 – Jun 23 | — | — |
| Carrots | — | — | May 5 – Jun 2 | Jul 7 – Jul 21 |
| Beets | — | — | May 5 – Jun 2 | Jul 21 – Aug 4 |
| Potatoes | — | — | May 5 – May 26 | — |
| Swiss Chard | — | — | May 12 – Jun 9 | Jul 21 – Aug 4 |
| Cilantro | — | — | May 12 – Jun 2 | Aug 4 – Aug 25 |
| Green Beans | — | — | Jun 2 – Jun 23 | Jul 14 – Jul 28 |
| Sweet Corn | — | — | Jun 2 – Jun 16 | — |
| Sweet Potatoes | — | Jun 9 – Jun 30 | — | — |
| Garlic | — | — | — | Sep 15 – Oct 20 |
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 Placerville, CO weather station, about 1 km away (elevation 7,382 ft (2,250 m)).
Frost dates near Placerville
- Telluride frost any month
- Norwood May 21 · Oct 1
- Ophir frost any month
- Ridgway Jun 11 · Sep 13
- Ouray May 18 · Oct 4
- Redvale May 25 · Oct 1
- Rico frost any month
- Silverton frost any month
- Montrose Apr 28 · Oct 14
- Naturita Apr 26 · Oct 18
Frequently asked questions
When is the last frost in Placerville, CO?
The median last spring frost in Placerville, CO is May 26. There is still about a 10% chance of frost after June 6, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Placerville, CO?
The median first fall frost is September 29, with about a 10% chance of frost before September 17.
How long is the growing season in Placerville, CO?
About 126 days between the median last spring frost and first fall frost.
What planting zone is Placerville, CO?
Placerville, CO is in USDA hardiness zone 5b.