Frost dates for 42141Glasgow, KY
The average last spring frost in Glasgow is April 9 and the average first fall frost is October 27, giving a typical growing season of about 201 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 9
- Average first fall frost
- Oct 27
- Growing season
- 201 days
Safer after Apr 28 (1-in-10 risk)
Possible by Oct 14 (1-in-10 risk)
Last frost typically in 157 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 8 · Apr 23 · May 9 | Oct 5 · Oct 19 · Oct 31 | 179 days | 100% |
| Frost / freeze (32°F) | Mar 24 · Apr 9 · Apr 28 | Oct 14 · Oct 27 · Nov 11 | 201 days | 100% |
| Hard freeze (28°F) | Mar 7 · Mar 28 · Apr 13 | Oct 22 · Nov 5 · Nov 25 | 225 days | 100% |
Planting calendar for Glasgow
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 | Mar 9 – May 15 |
| Tomatoes | Transplant outdoors | Apr 25 – Jul 7 |
| Peppers | Start seeds indoors | Mar 9 – Apr 9 |
| Peppers | Transplant outdoors | May 9 – Jun 9 |
| Eggplant | Start seeds indoors | Mar 26 – Apr 24 |
| Eggplant | Transplant outdoors | May 9 – Jun 9 |
| Cucumbers | Sow outdoors | May 9 – Jul 17 |
| Summer squash | Sow outdoors | Apr 25 – Jun 9 |
| Winter squash & pumpkins | Sow outdoors | May 9 – Jun 9 |
| Snap beans | Sow outdoors | Apr 25 – Aug 9 |
| Sweet corn | Sow outdoors | Apr 25 – Jul 7 |
| Watermelon & cantaloupe | Sow outdoors | May 9 – Jun 9 |
| Okra | Sow outdoors | May 2 – May 25 |
| Peas | Sow outdoors (spring) | Mar 9 – Apr 24 |
| Potatoes | Plant outdoors (spring) | Mar 9 – May 9 |
| Onions | Start seeds indoors (spring) | Jan 26 – Feb 22 |
| Onions | Transplant outdoors (spring) | Mar 26 – Apr 24 |
| Broccoli | Start seeds indoors (spring) | Feb 19 – Mar 25 |
| Broccoli | Transplant outdoors (spring) | Mar 26 – Apr 24 |
| Broccoli | Start seeds indoors (fall) | Jun 27 – Jul 7 |
| Broccoli | Transplant outdoors (fall) | Jul 27 – Aug 7 |
| Cabbage | Start seeds indoors (spring) | Feb 9 – Mar 9 |
| Cabbage | Transplant outdoors (spring) | Mar 9 – Apr 9 |
| Cabbage | Start seeds indoors (fall) | Jun 17 – Jul 17 |
| Cabbage | Transplant outdoors (fall) | Jul 17 – Aug 17 |
| Leaf lettuce | Sow outdoors (spring) | Mar 9 – May 25 |
| Leaf lettuce | Sow outdoors (fall) | Jul 17 – Sep 2 |
| Spinach | Sow outdoors (spring) | Mar 2 – Apr 15 |
| Spinach | Sow outdoors (fall) | Aug 3 – Sep 7 |
| Radishes | Sow outdoors (spring) | Mar 9 – Apr 29 |
| Radishes | Sow outdoors (fall) | Jul 17 – Sep 17 |
| Kale | Sow outdoors (spring) | Mar 26 – Apr 15 |
| Kale | Sow outdoors (fall) | Jul 10 – Aug 17 |
| Carrots | Sow outdoors (spring) | Apr 9 – May 25 |
| Carrots | Sow outdoors (fall) | Jun 17 – Aug 2 |
| Garlic | Plant outdoors (fall) | Oct 17 – Nov 17 |
Where these dates come from
ZIP code 42141 is matched to the NOAA station Glasgow, KY, 2 km away, at 770 ft elevation (22 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Glasgow, KY (used) | 770 ft | Apr 9 | Oct 27 |
| Knob Lick 4S, KY | 1,020 ft | Apr 5 | Nov 2 |
| Barren Rvr Lake, KY | 615 ft | Apr 12 | Oct 29 |
| Summer Shade, KY | 864 ft | Apr 26 | Oct 18 |
Frost dates near Glasgow
- Glasgow, KY 42142 · last Apr 9, first Oct 27
- Cave City, KY 42127 · last Apr 9, first Oct 30
- Hiseville, KY 42152 · last Apr 9, first Oct 27
- Eighty Eight, KY 42130 · last Apr 26, first Oct 18
- Park City, KY 42160 · last Apr 9, first Oct 30
- Lucas, KY 42156 · last Apr 12, first Oct 29
- Etoile, KY 42131 · last Apr 12, first Oct 29
- Austin, KY 42123 · last Apr 12, first Oct 29
Frequently asked questions
- When is the last frost in Glasgow, KY?
- For ZIP code 42141, the average last spring frost (32°F) is April 9, based on NOAA 1991-2020 climate normals for the Glasgow, KY weather station. There is a 1-in-10 chance of a frost after April 28.
- When is the first frost in Glasgow, KY?
- The average first fall frost (32°F) is October 27. There is a 1-in-10 chance of frost by October 14, so tender plants are at risk from that point on.
- How long is the growing season in 42141?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 201 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.