Frost dates for 47845Coalmont, IN
The average last spring frost in Coalmont is April 14 and the average first fall frost is October 26, giving a typical growing season of about 193 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 14
- Average first fall frost
- Oct 26
- Growing season
- 193 days
Safer after May 1 (1-in-10 risk)
Possible by Oct 12 (1-in-10 risk)
Last frost typically in 163 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 10 · Apr 25 · May 11 | Oct 3 · Oct 16 · Oct 28 | 172 days | 100% |
| Frost / freeze (32°F) | Mar 31 · Apr 14 · May 1 | Oct 12 · Oct 26 · Nov 6 | 193 days | 100% |
| Hard freeze (28°F) | Mar 19 · Apr 1 · Apr 17 | Oct 23 · Nov 3 · Nov 17 | 215 days | 100% |
Planting calendar for Coalmont
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 14 – May 20 |
| Tomatoes | Transplant outdoors | Apr 30 – Jul 6 |
| Peppers | Start seeds indoors | Mar 14 – Apr 14 |
| Peppers | Transplant outdoors | May 14 – Jun 14 |
| Eggplant | Start seeds indoors | Mar 31 – Apr 29 |
| Eggplant | Transplant outdoors | May 14 – Jun 14 |
| Cucumbers | Sow outdoors | May 14 – Jul 16 |
| Summer squash | Sow outdoors | Apr 30 – Jun 14 |
| Winter squash & pumpkins | Sow outdoors | May 14 – Jun 14 |
| Snap beans | Sow outdoors | Apr 30 – Aug 8 |
| Sweet corn | Sow outdoors | Apr 30 – Jul 6 |
| Watermelon & cantaloupe | Sow outdoors | May 14 – Jun 14 |
| Okra | Sow outdoors | May 7 – May 30 |
| Peas | Sow outdoors (spring) | Mar 14 – Apr 29 |
| Potatoes | Plant outdoors (spring) | Mar 14 – May 14 |
| Onions | Start seeds indoors (spring) | Jan 31 – Feb 27 |
| Onions | Transplant outdoors (spring) | Mar 31 – Apr 29 |
| Broccoli | Start seeds indoors (spring) | Feb 24 – Mar 30 |
| Broccoli | Transplant outdoors (spring) | Mar 31 – Apr 29 |
| Broccoli | Start seeds indoors (fall) | Jun 26 – Jul 6 |
| Broccoli | Transplant outdoors (fall) | Jul 26 – Aug 6 |
| Cabbage | Start seeds indoors (spring) | Feb 14 – Mar 14 |
| Cabbage | Transplant outdoors (spring) | Mar 14 – Apr 14 |
| Cabbage | Start seeds indoors (fall) | Jun 16 – Jul 16 |
| Cabbage | Transplant outdoors (fall) | Jul 16 – Aug 16 |
| Leaf lettuce | Sow outdoors (spring) | Mar 14 – May 30 |
| Leaf lettuce | Sow outdoors (fall) | Jul 16 – Sep 1 |
| Spinach | Sow outdoors (spring) | Mar 7 – Apr 20 |
| Spinach | Sow outdoors (fall) | Aug 2 – Sep 6 |
| Radishes | Sow outdoors (spring) | Mar 14 – May 4 |
| Radishes | Sow outdoors (fall) | Jul 16 – Sep 16 |
| Kale | Sow outdoors (spring) | Mar 31 – Apr 20 |
| Kale | Sow outdoors (fall) | Jul 9 – Aug 16 |
| Carrots | Sow outdoors (spring) | Apr 14 – May 30 |
| Carrots | Sow outdoors (fall) | Jun 16 – Aug 1 |
| Garlic | Plant outdoors (fall) | Oct 16 – Nov 16 |
Where these dates come from
ZIP code 47845 is matched to the NOAA station Shakamak Sp, IN, 3.7 km away, at 549 ft elevation (81 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Shakamak Sp, IN (used) | 549 ft | Apr 14 | Oct 26 |
| Farmersburg Tv-2, IN | 548 ft | Apr 8 | Oct 27 |
| Terre Haute Caa Ap, IN | 575 ft | Apr 14 | Oct 24 |
| Terre Haute Hulman Rgnl Ap, IN | 575 ft | Apr 16 | Oct 18 |
Frost dates near Coalmont
- Jasonville, IN 47438 · last Apr 14, first Oct 26
- Hymera, IN 47855 · last Apr 14, first Oct 26
- Midland, IN 47445 · last Apr 14, first Oct 26
- Lewis, IN 47858 · last Apr 14, first Oct 26
- Clay City, IN 47841 · last Apr 14, first Oct 26
- Dugger, IN 47848 · last Apr 14, first Oct 26
- Shelburn, IN 47879 · last Apr 14, first Oct 26
- Pimento, IN 47866 · last Apr 16, first Oct 18
Frequently asked questions
- When is the last frost in Coalmont, IN?
- For ZIP code 47845, the average last spring frost (32°F) is April 14, based on NOAA 1991-2020 climate normals for the Shakamak Sp, IN weather station. There is a 1-in-10 chance of a frost after May 1.
- When is the first frost in Coalmont, IN?
- The average first fall frost (32°F) is October 26. There is a 1-in-10 chance of frost by October 12, so tender plants are at risk from that point on.
- How long is the growing season in 47845?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 193 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.