Frost dates for 46011Anderson, IN
The average last spring frost in Anderson is April 19 and the average first fall frost is October 23, giving a typical growing season of about 186 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 19
- Average first fall frost
- Oct 23
- Growing season
- 186 days
Safer after May 5 (1-in-10 risk)
Possible by Oct 7 (1-in-10 risk)
Last frost typically in 168 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 16 · Apr 30 · May 16 | Sep 30 · Oct 13 · Oct 26 | 163 days | 100% |
| Frost / freeze (32°F) | Apr 3 · Apr 19 · May 5 | Oct 7 · Oct 23 · Nov 6 | 186 days | 100% |
| Hard freeze (28°F) | Mar 22 · Apr 5 · Apr 25 | Oct 21 · Nov 3 · Nov 20 | 211 days | 100% |
Planting calendar for Anderson
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 19 – May 25 |
| Tomatoes | Transplant outdoors | May 5 – Jul 3 |
| Peppers | Start seeds indoors | Mar 19 – Apr 19 |
| Peppers | Transplant outdoors | May 19 – Jun 19 |
| Eggplant | Start seeds indoors | Apr 5 – May 4 |
| Eggplant | Transplant outdoors | May 19 – Jun 19 |
| Cucumbers | Sow outdoors | May 19 – Jul 13 |
| Summer squash | Sow outdoors | May 5 – Jun 19 |
| Winter squash & pumpkins | Sow outdoors | May 19 – Jun 19 |
| Snap beans | Sow outdoors | May 5 – Aug 5 |
| Sweet corn | Sow outdoors | May 5 – Jul 3 |
| Watermelon & cantaloupe | Sow outdoors | May 19 – Jun 19 |
| Okra | Sow outdoors | May 12 – Jun 4 |
| Peas | Sow outdoors (spring) | Mar 19 – May 4 |
| Potatoes | Plant outdoors (spring) | Mar 19 – May 19 |
| Onions | Start seeds indoors (spring) | Feb 5 – Mar 4 |
| Onions | Transplant outdoors (spring) | Apr 5 – May 4 |
| Broccoli | Start seeds indoors (spring) | Mar 1 – Apr 4 |
| Broccoli | Transplant outdoors (spring) | Apr 5 – May 4 |
| Broccoli | Start seeds indoors (fall) | Jun 23 – Jul 3 |
| Broccoli | Transplant outdoors (fall) | Jul 23 – Aug 3 |
| Cabbage | Start seeds indoors (spring) | Feb 19 – Mar 19 |
| Cabbage | Transplant outdoors (spring) | Mar 19 – Apr 19 |
| Cabbage | Start seeds indoors (fall) | Jun 13 – Jul 13 |
| Cabbage | Transplant outdoors (fall) | Jul 13 – Aug 13 |
| Leaf lettuce | Sow outdoors (spring) | Mar 19 – Jun 4 |
| Leaf lettuce | Sow outdoors (fall) | Jul 13 – Aug 29 |
| Spinach | Sow outdoors (spring) | Mar 12 – Apr 25 |
| Spinach | Sow outdoors (fall) | Jul 30 – Sep 3 |
| Radishes | Sow outdoors (spring) | Mar 19 – May 9 |
| Radishes | Sow outdoors (fall) | Jul 13 – Sep 13 |
| Kale | Sow outdoors (spring) | Apr 5 – Apr 25 |
| Kale | Sow outdoors (fall) | Jul 6 – Aug 13 |
| Carrots | Sow outdoors (spring) | Apr 19 – Jun 4 |
| Carrots | Sow outdoors (fall) | Jun 13 – Jul 29 |
| Garlic | Plant outdoors (fall) | Oct 13 – Nov 13 |
Where these dates come from
ZIP code 46011 is matched to the NOAA station Anderson Sewage Plt, IN, 0.8 km away, at 841 ft elevation (8 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Anderson Sewage Plt, IN (used) | 841 ft | Apr 19 | Oct 23 |
| Elwood, IN | 866 ft | Apr 24 | Oct 18 |
| Muncie Delaware Co Ap, IN | 937 ft | Apr 16 | Oct 25 |
| Carmel 3 E, IN | 752 ft | Apr 21 | Oct 21 |
Frost dates near Anderson
- Anderson, IN 46016 · last Apr 19, first Oct 23
- Lapel, IN 46051 · last Apr 19, first Oct 23
- Pendleton, IN 46064 · last Apr 19, first Oct 23
- Frankton, IN 46044 · last Apr 24, first Oct 18
- Markleville, IN 46056 · last Apr 19, first Oct 23
- Alexandria, IN 46001 · last Apr 24, first Oct 18
- Orestes, IN 46063 · last Apr 24, first Oct 18
- Middletown, IN 47356 · last Apr 19, first Oct 23
Frequently asked questions
- When is the last frost in Anderson, IN?
- For ZIP code 46011, the average last spring frost (32°F) is April 19, based on NOAA 1991-2020 climate normals for the Anderson Sewage Plt, IN weather station. There is a 1-in-10 chance of a frost after May 5.
- When is the first frost in Anderson, IN?
- The average first fall frost (32°F) is October 23. There is a 1-in-10 chance of frost by October 7, so tender plants are at risk from that point on.
- How long is the growing season in 46011?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 186 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.