Frost dates for 47925Buffalo, IN
The average last spring frost in Buffalo is April 26 and the average first fall frost is October 17, giving a typical growing season of about 173 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 26
- Average first fall frost
- Oct 17
- Growing season
- 173 days
Safer after May 12 (1-in-10 risk)
Possible by Oct 2 (1-in-10 risk)
Last frost typically in 175 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 23 · May 6 · May 22 | Sep 22 · Oct 6 · Oct 19 | 152 days | 100% |
| Frost / freeze (32°F) | Apr 12 · Apr 26 · May 12 | Oct 2 · Oct 17 · Oct 30 | 173 days | 100% |
| Hard freeze (28°F) | Apr 1 · Apr 16 · May 1 | Oct 14 · Oct 28 · Nov 9 | 194 days | 100% |
Planting calendar for Buffalo
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 26 – Jun 1 |
| Tomatoes | Transplant outdoors | May 12 – Jun 27 |
| Peppers | Start seeds indoors | Mar 26 – Apr 26 |
| Peppers | Transplant outdoors | May 26 – Jun 26 |
| Eggplant | Start seeds indoors | Apr 12 – May 11 |
| Eggplant | Transplant outdoors | May 26 – Jun 26 |
| Cucumbers | Sow outdoors | May 26 – Jul 7 |
| Summer squash | Sow outdoors | May 12 – Jun 26 |
| Winter squash & pumpkins | Sow outdoors | May 26 – Jun 26 |
| Snap beans | Sow outdoors | May 12 – Jul 30 |
| Sweet corn | Sow outdoors | May 12 – Jun 27 |
| Watermelon & cantaloupe | Sow outdoors | May 26 – Jun 26 |
| Okra | Sow outdoors | May 19 – Jun 11 |
| Peas | Sow outdoors (spring) | Mar 26 – May 11 |
| Potatoes | Plant outdoors (spring) | Mar 26 – May 26 |
| Onions | Start seeds indoors (spring) | Feb 12 – Mar 11 |
| Onions | Transplant outdoors (spring) | Apr 12 – May 11 |
| Broccoli | Start seeds indoors (spring) | Mar 8 – Apr 11 |
| Broccoli | Transplant outdoors (spring) | Apr 12 – May 11 |
| Broccoli | Start seeds indoors (fall) | Jun 17 – Jun 27 |
| Broccoli | Transplant outdoors (fall) | Jul 17 – Jul 28 |
| Cabbage | Start seeds indoors (spring) | Feb 26 – Mar 26 |
| Cabbage | Transplant outdoors (spring) | Mar 26 – Apr 26 |
| Cabbage | Start seeds indoors (fall) | Jun 7 – Jul 7 |
| Cabbage | Transplant outdoors (fall) | Jul 7 – Aug 7 |
| Leaf lettuce | Sow outdoors (spring) | Mar 26 – Jun 11 |
| Leaf lettuce | Sow outdoors (fall) | Jul 7 – Aug 23 |
| Spinach | Sow outdoors (spring) | Mar 19 – May 2 |
| Spinach | Sow outdoors (fall) | Jul 24 – Aug 28 |
| Radishes | Sow outdoors (spring) | Mar 26 – May 16 |
| Radishes | Sow outdoors (fall) | Jul 7 – Sep 7 |
| Kale | Sow outdoors (spring) | Apr 12 – May 2 |
| Kale | Sow outdoors (fall) | Jun 30 – Aug 7 |
| Carrots | Sow outdoors (spring) | Apr 26 – Jun 11 |
| Carrots | Sow outdoors (fall) | Jun 7 – Jul 23 |
| Garlic | Plant outdoors (fall) | Oct 7 – Nov 7 |
Where these dates come from
ZIP code 47925 is matched to the NOAA station Francesville, IN, 16.4 km away, at 680 ft elevation (14 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Francesville, IN (used) | 680 ft | Apr 26 | Oct 17 |
| Winamac 2Sse, IN | 690 ft | Apr 25 | Oct 18 |
| Chalmers 5 W, IN | 720 ft | Apr 25 | Oct 17 |
| Delphi 2 N, IN | 556 ft | Apr 22 | Oct 17 |
Frost dates near Buffalo
- Monon, IN 47959 · last Apr 26, first Oct 17
- Monticello, IN 47960 · last Apr 22, first Oct 17
- Francesville, IN 47946 · last Apr 26, first Oct 17
- Idaville, IN 47950 · last Apr 22, first Oct 17
- Reynolds, IN 47980 · last Apr 26, first Oct 17
- Burnettsville, IN 47926 · last Apr 20, first Oct 23
- Star City, IN 46985 · last Apr 25, first Oct 18
- Royal Center, IN 46978 · last Apr 25, first Oct 18
Frequently asked questions
- When is the last frost in Buffalo, IN?
- For ZIP code 47925, the average last spring frost (32°F) is April 26, based on NOAA 1991-2020 climate normals for the Francesville, IN weather station. There is a 1-in-10 chance of a frost after May 12.
- When is the first frost in Buffalo, IN?
- The average first fall frost (32°F) is October 17. There is a 1-in-10 chance of frost by October 2, so tender plants are at risk from that point on.
- How long is the growing season in 47925?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 173 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.