Frost Dates for Monticello, KY 42633
Last spring frost April 20 · First fall frost October 20 · 183 frost-free days · USDA Zone 7a
ZIP 42633 has about 18,600 people.
Long season: 183 frost-free days. Spring frost risk spans April 5–May 6 (31 days). Fall frost risk spans October 3–November 6 (34 days).
Frost probability for 42633
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | May 6 | April 20 | April 5 |
| Fall (first frost) | October 3 | October 20 | November 6 |
Dates come from NOAA 1971–2000 freeze probabilities at MONTICELLO 3 NE (8.3 km away); the 50% date is the median year.
Which crops fit a 183-day season in Monticello
In Monticello (183 frost-free days, a long season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.
| Crop | Start indoors | Plant out / sow | Days you have | Verdict | Last sow date |
|---|---|---|---|---|---|
| Tomato | Mar 16 | May 4–May 11 | 141 | fits: 80 days to maturity, 141 available after May 4. | Jun 20 |
| Pepper | Mar 9 | May 4–May 11 | 141 | fits: 75 days to maturity, 141 available after May 4. | Jun 25 |
| Lettuce | Feb 23 | Mar 23–Mar 30 | 218 | two-plantings: Plant Mar 23 and again by Aug 29; both mature before Oct 27. | Aug 29 |
| Carrots | — | Mar 30–Apr 6 | 225 | fits: 70 days to maturity, 225 available after Mar 30. | Aug 18 |
| Cucumber | Mar 30 | May 4–May 11 | 155 | two-plantings: Plant May 4 and again by Jul 24; both mature before Oct 6. | Jul 24 |
| Beans | — | Apr 27–May 11 | 169 | two-plantings: Plant Apr 27 and again by Jul 31; both mature before Oct 13. | Jul 31 |
| Peas | — | Feb 23–May 4 | 246 | fits: 65 days to maturity, 246 available after Feb 23. | Aug 9 |
| Zucchini | Apr 6 | May 4–May 11 | 155 | two-plantings: Plant May 4 and again by Jul 29; both mature before Oct 6. | Jul 29 |
| Onion | Jan 26 | Mar 23–Apr 6 | 218 | fits: 100 days to maturity, 218 available after Mar 23. | — |
| Spinach | — | Feb 23–Apr 13 | 260 | two-plantings: Plant Feb 23 and again by Sep 17; both mature before Nov 10. | Sep 17 |
| Kale | Feb 9 | Mar 23–Apr 6 | 232 | two-plantings: Plant Mar 23 and again by Sep 2; both mature before Nov 10. | Sep 2 |
| Broccoli | Feb 23 | Mar 23–Apr 6 | 218 | fits: 80 days to maturity, 218 available after Mar 23. | Jul 25 |
| Cabbage | Feb 23 | Mar 23–Apr 6 | 232 | fits: 70 days to maturity, 232 available after Mar 23. | Aug 18 |
| Radish | — | Feb 23–May 18 | 246 | two-plantings: Plant Feb 23 and again by Sep 18; both mature before Oct 27. | Sep 18 |
| Beets | — | Feb 23–May 18 | 246 | two-plantings: Plant Feb 23 and again by Aug 19; both mature before Oct 27. | Aug 19 |
| Potatoes | — | Apr 6–Apr 13 | 204 | fits: 90 days to maturity, 204 available after Apr 6. | — |
| Garlic | — | Oct 20 | 288 | overwinter: Plant Oct 20 to Nov 10; harvest the following summer. | Nov 10 |
| Strawberry | — | Mar 16–May 11 | 239 | perennial: A perennial: plant Mar 16; it fruits from the following year and keeps producing for several years. | — |
| Corn | Mar 23 | Apr 27–May 4 | 155 | fits: 75 days to maturity, 155 available after Apr 27. | Jul 2 |
| Pumpkin | Apr 6 | May 4–May 4 | 148 | fits: 100 days to maturity, 148 available after May 4. | Jun 7 |
| Cauliflower | Mar 9 | Apr 13–Apr 27 | 197 | fits: 75 days to maturity, 197 available after Apr 13. | Jul 30 |
| Swiss Chard | Feb 23 | Apr 6–Apr 6 | 204 | two-plantings: Plant Apr 6 and again by Aug 19; both mature before Oct 27. | Aug 19 |
| Arugula | — | Feb 23–May 18 | 260 | two-plantings: Plant Feb 23 and again by Sep 17; both mature before Nov 10. | Sep 17 |
| Brussel Sprouts | Feb 23 | Mar 23–Apr 6 | 232 | fits: 100 days to maturity, 232 available after Mar 23. | Jul 19 |
| Butternut Squash | Apr 6 | May 4–May 11 | 148 | fits: 100 days to maturity, 148 available after May 4. | Jun 7 |
| Eggplant | Mar 2 | May 4–May 11 | 141 | fits: 70 days to maturity, 141 available after May 4. | Jun 30 |
| Okra | Mar 23 | Apr 27–May 4 | 162 | two-plantings: Plant Apr 27 and again by Jul 29; both mature before Oct 6. | Jul 29 |
| Basil | Mar 16 | May 11–May 11 | 148 | two-plantings: Plant May 11 and again by Jul 24; both mature before Oct 6. | Jul 24 |
| Cilantro | — | Mar 23–Apr 13 | 218 | two-plantings: Plant Mar 23 and again by Aug 24; both mature before Oct 27. | Aug 24 |
| Parsley | Feb 9 | Apr 27–May 4 | 183 | fits: 70 days to maturity, 183 available after Apr 27. | Aug 4 |
| Celery | Feb 9 | Apr 27–May 11 | 183 | fits: 120 days to maturity, 183 available after Apr 27. | Jun 15 |
| Scallions | Feb 9 | Mar 23–Apr 6 | 232 | two-plantings: Plant Mar 23 and again by Aug 28; both mature before Nov 10. | Aug 28 |
| Turnip | — | Mar 23–Apr 6 | 232 | two-plantings: Plant Mar 23 and again by Sep 7; both mature before Nov 10. | Sep 7 |
| Kohlrabi | — | Mar 9–Mar 23 | 246 | two-plantings: Plant Mar 9 and again by Sep 2; both mature before Nov 10. | Sep 2 |
| Bok Choy | Mar 23 | Apr 13–Apr 20 | 197 | two-plantings: Plant Apr 13 and again by Aug 29; both mature before Oct 27. | Aug 29 |
| Collards | Feb 9 | Mar 23–Apr 6 | 232 | two-plantings: Plant Mar 23 and again by Aug 28; both mature before Nov 10. | Aug 28 |
| Cantaloupe | Apr 6 | May 4–May 11 | 141 | fits: 85 days to maturity, 141 available after May 4. | Jun 15 |
| Chives | Jan 26 | Apr 27–May 4 | 197 | fits: 90 days to maturity, 197 available after Apr 27. | — |
| Dill | — | Feb 23–May 18 | 246 | two-plantings: Plant Feb 23 and again by Aug 19; both mature before Oct 27. | Aug 19 |
| Oregano | Feb 9 | Apr 27–May 4 | 197 | fits: 80 days to maturity, 197 available after Apr 27. | — |
| Rosemary | Jan 26 | Apr 27–May 4 | 183 | fits: 80 days to maturity, 183 available after Apr 27. | — |
| Sage | Feb 23 | Apr 27–May 4 | 197 | fits: 75 days to maturity, 197 available after Apr 27. | — |
| Thyme | Feb 9 | Apr 27–May 4 | 197 | fits: 90 days to maturity, 197 available after Apr 27. | — |
| Calendula | Mar 9 | Apr 6–Apr 20 | 204 | two-plantings: Plant Apr 6 and again by Aug 24; both mature before Oct 27. | Aug 24 |
| Cosmos | Mar 23 | Apr 20–May 4 | 169 | two-plantings: Plant Apr 20 and again by Jul 24; both mature before Oct 6. | Jul 24 |
| Lavender | Jan 26 | Apr 20–May 4 | 204 | fits: 90 days to maturity, 204 available after Apr 20. | — |
| Marigolds | Mar 9 | Apr 20–Apr 27 | 169 | two-plantings: Plant Apr 20 and again by Aug 3; both mature before Oct 6. | Aug 3 |
| Melons | Apr 6 | May 4–May 11 | 141 | fits: 85 days to maturity, 141 available after May 4. | Jun 15 |
| Mint | — | Apr 20–May 4 | 204 | fits: 90 days to maturity, 204 available after Apr 20. | — |
| Nasturtiums | Mar 23 | Apr 20–Apr 27 | 169 | two-plantings: Plant Apr 20 and again by Jul 29; both mature before Oct 6. | Jul 29 |
| Pole Beans | — | Apr 27–May 11 | 162 | fits: 65 days to maturity, 162 available after Apr 27. | Jul 19 |
| Spaghetti Squash | Apr 6 | May 4–May 11 | 148 | fits: 90 days to maturity, 148 available after May 4. | Jun 17 |
| Sunflowers | — | Apr 20–May 4 | 169 | fits: 70 days to maturity, 169 available after Apr 20. | Jul 14 |
| Tomatillos | Feb 23 | Apr 27–May 4 | 148 | fits: 75 days to maturity, 148 available after Apr 27. | Jun 25 |
| Watermelon | Apr 6 | Apr 27–May 4 | 148 | fits: 80 days to maturity, 148 available after Apr 27. | Jun 20 |
| Yellow Squash | Apr 6 | May 4–May 11 | 155 | two-plantings: Plant May 4 and again by Jul 29; both mature before Oct 6. | Jul 29 |
| Zinnias | Mar 23 | Apr 20–May 4 | 169 | two-plantings: Plant Apr 20 and again by Jul 24; both mature before Oct 6. | Jul 24 |
Month by month in Monticello
| Month | What to do |
|---|---|
| January | Start indoors: Chives (Jan 26), Lavender (Jan 26), Onion (Jan 26), Rosemary (Jan 26). |
| February | Start indoors: Celery (Feb 9), Collards (Feb 9), Kale (Feb 9), Oregano (Feb 9), Parsley (Feb 9), Scallions (Feb 9), +8 more. Direct sow from: Arugula (Feb 23), Beets (Feb 23), Dill (Feb 23), Peas (Feb 23), Radish (Feb 23), Spinach (Feb 23). |
| March | Start indoors: Eggplant (Mar 2), Calendula (Mar 9), Cauliflower (Mar 9), Marigolds (Mar 9), Pepper (Mar 9), Basil (Mar 16), +8 more. Direct sow from: Kohlrabi (Mar 9), Cilantro (Mar 23), Turnip (Mar 23), Carrots (Mar 30). Transplant from: Broccoli (Mar 23), Brussel Sprouts (Mar 23), Cabbage (Mar 23), Collards (Mar 23), Kale (Mar 23), Lettuce (Mar 23), +2 more. Plant: Strawberry (Mar 16). |
| April | Start indoors: Butternut Squash (Apr 6), Cantaloupe (Apr 6), Melons (Apr 6), Pumpkin (Apr 6), Spaghetti Squash (Apr 6), Watermelon (Apr 6), +2 more. Direct sow from: Potatoes (Apr 6), Sunflowers (Apr 20), Beans (Apr 27), Pole Beans (Apr 27). Transplant from: Calendula (Apr 6), Swiss Chard (Apr 6), Bok Choy (Apr 13), Cauliflower (Apr 13), Cosmos (Apr 20), Lavender (Apr 20), +15 more. Last frost around April 20. |
| May | Transplant from: Butternut Squash (May 4), Cantaloupe (May 4), Cucumber (May 4), Eggplant (May 4), Melons (May 4), Pepper (May 4), +6 more. |
| June | Last sowing dates: Butternut Squash (Jun 7), Pumpkin (Jun 7), Cantaloupe (Jun 15), Celery (Jun 15), Melons (Jun 15), Spaghetti Squash (Jun 17), +5 more. |
| July | Last sowing dates: Corn (Jul 2), Sunflowers (Jul 14), Brussel Sprouts (Jul 19), Pole Beans (Jul 19), Basil (Jul 24), Cosmos (Jul 24), +9 more. |
| August | Last sowing dates: Marigolds (Aug 3), Parsley (Aug 4), Peas (Aug 9), Cabbage (Aug 18), Carrots (Aug 18), Beets (Aug 19), +8 more. |
| September | Last sowing dates: Kale (Sep 2), Kohlrabi (Sep 2), Turnip (Sep 7), Arugula (Sep 17), Spinach (Sep 17), Radish (Sep 18). |
| October | Direct sow from: Garlic (Oct 20). First frost around October 20. |
| November | Last sowing dates: Garlic (Nov 10). |
| December | Clean up spent plants. Add compost to beds. Rest, review, and plan next year's garden. |
Frequently Asked Questions
What is the last frost date for Monticello, KY (ZIP 42633)?
The median last spring frost date for Monticello, KY (ZIP code 42633) is around April 20. This is the 50th-percentile date — meaning half of all years see frost end before this date. Use the 10% and 90% dates to understand the full range of risk in your area. One year in ten frost ends before April 5; one in ten it runs past May 6.
What is the first fall frost date in Monticello, KY?
The median first fall frost date for Monticello, KY is around October 20. Plan to harvest or protect frost-sensitive crops like tomatoes and peppers at least a week before this date to avoid losses. The first frost arrives around October 3 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Monticello, KY?
The frost-free growing season in Monticello is about 183 days. This window — from your last spring frost to your first fall frost — is when warm-season vegetables thrive. Cold-hardy crops like kale, spinach, and peas can extend your season by weeks on either side. In Monticello (183 frost-free days, a long season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.
What USDA hardiness zone is Monticello, KY?
Monticello, KY is in USDA hardiness zone 7a (2023 USDA Plant Hardiness Zone Map). Zones come from the average coldest winter temperature, so they tell you which perennials survive the winter; the frost dates on this page tell you when to plant.
When should I start tomatoes indoors in Monticello, KY?
Start tomatoes indoors Mar 16 and plant out May 4 in Monticello. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Monticello?
Two: plant Mar 23 and again by Aug 29; both mature before Oct 27.
When do I plant garlic in Monticello?
Oct 20 to Nov 10; it overwinters and is ready the following summer.
Can I get two tomato crops in Monticello?
Yes: plant out May 4 for a summer crop, and set out a second round of transplants by Jun 20 for a fall crop.
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