Frost dates for 95232Glencoe, CA
The average last spring frost in Glencoe is March 31 and the average first fall frost is November 21, giving a typical growing season of about 237 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Mar 31
- Average first fall frost
- Nov 21
- Growing season
- 237 days
Safer after Apr 23 (1-in-10 risk)
Possible by Nov 1 (1-in-10 risk)
First frost typically in 21 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) | Apr 6 · Apr 23 · May 14 | Oct 17 · Nov 6 · Nov 22 | 196 days | 100% |
| Frost / freeze (32°F) | Feb 24 · Mar 31 · Apr 23 | Nov 1 · Nov 21 · Dec 7 | 237 days | 100% |
| Hard freeze (28°F) | Jan 14 · Feb 15 · Mar 21 | Nov 19 · Dec 5 · Jan 1 | 294 days | 100% |
Planting calendar for Glencoe
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 | Feb 28 – May 6 |
| Tomatoes | Transplant outdoors | Apr 16 – Aug 1 |
| Peppers | Start seeds indoors | Feb 28 – Mar 31 |
| Peppers | Transplant outdoors | Apr 30 – May 31 |
| Eggplant | Start seeds indoors | Mar 17 – Apr 15 |
| Eggplant | Transplant outdoors | Apr 30 – May 31 |
| Cucumbers | Sow outdoors | Apr 30 – Aug 11 |
| Summer squash | Sow outdoors | Apr 16 – May 31 |
| Winter squash & pumpkins | Sow outdoors | Apr 30 – May 31 |
| Snap beans | Sow outdoors | Apr 16 – Sep 3 |
| Sweet corn | Sow outdoors | Apr 16 – Aug 1 |
| Watermelon & cantaloupe | Sow outdoors | Apr 30 – May 31 |
| Okra | Sow outdoors | Apr 23 – May 16 |
| Peas | Sow outdoors (spring) | Feb 28 – Apr 15 |
| Potatoes | Plant outdoors (spring) | Feb 28 – Apr 30 |
| Onions | Start seeds indoors (spring) | Jan 17 – Feb 13 |
| Onions | Transplant outdoors (spring) | Mar 17 – Apr 15 |
| Broccoli | Start seeds indoors (spring) | Feb 10 – Mar 16 |
| Broccoli | Transplant outdoors (spring) | Mar 17 – Apr 15 |
| Broccoli | Start seeds indoors (fall) | Jul 22 – Aug 1 |
| Broccoli | Transplant outdoors (fall) | Aug 21 – Sep 1 |
| Cabbage | Start seeds indoors (spring) | Jan 31 – Feb 28 |
| Cabbage | Transplant outdoors (spring) | Feb 28 – Mar 31 |
| Cabbage | Start seeds indoors (fall) | Jul 12 – Aug 11 |
| Cabbage | Transplant outdoors (fall) | Aug 11 – Sep 11 |
| Leaf lettuce | Sow outdoors (spring) | Feb 28 – May 16 |
| Leaf lettuce | Sow outdoors (fall) | Aug 11 – Sep 27 |
| Spinach | Sow outdoors (spring) | Feb 21 – Apr 6 |
| Spinach | Sow outdoors (fall) | Aug 28 – Oct 2 |
| Radishes | Sow outdoors (spring) | Feb 28 – Apr 20 |
| Radishes | Sow outdoors (fall) | Aug 11 – Oct 12 |
| Kale | Sow outdoors (spring) | Mar 17 – Apr 6 |
| Kale | Sow outdoors (fall) | Aug 4 – Sep 11 |
| Carrots | Sow outdoors (spring) | Mar 31 – May 16 |
| Carrots | Sow outdoors (fall) | Jul 12 – Aug 27 |
| Garlic | Plant outdoors (fall) | Nov 11 – Dec 12 |
Where these dates come from
ZIP code 95232 is matched to the NOAA station Placerville, CA, 43.5 km away, at 1,850 ft elevation (742 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Placerville, CA (used) | 1,850 ft | Mar 31 | Nov 21 |
| Sutter Hill Cdf, CA | 1,586 ft | Mar 4 | Dec 11 |
| Calaveras Big Trees, CA | 4,695 ft | May 7 | Oct 28 |
| Camp Pardee, CA | 658 ft | Jan 22 | Dec 17 |
Frost dates near Glencoe
- Mokelumne Hill, CA 95245 · last Apr 22, first Nov 2
- Rail Road Flat, CA 95248 · last Apr 22, first Nov 2
- Pioneer, CA 95666 · last Apr 12, first Nov 21
- Pine Grove, CA 95665 · last Apr 12, first Nov 21
- Wilseyville, CA 95257 · last Apr 26, first Nov 2
- West Point, CA 95255 · last Apr 26, first Nov 2
- Volcano, CA 95689 · last Apr 12, first Nov 21
- Mountain Ranch, CA 95246 · last Apr 9, first Nov 9
Frequently asked questions
- When is the last frost in Glencoe, CA?
- For ZIP code 95232, the average last spring frost (32°F) is March 31, based on NOAA 1991-2020 climate normals for the Placerville, CA weather station. There is a 1-in-10 chance of a frost after April 23.
- When is the first frost in Glencoe, CA?
- The average first fall frost (32°F) is November 21. There is a 1-in-10 chance of frost by November 1, so tender plants are at risk from that point on.
- How long is the growing season in 95232?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 237 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.