Frost dates for 13680Rensselaer Falls, NY
The average last spring frost in Rensselaer Falls is April 29 and the average first fall frost is October 10, giving a typical growing season of about 162 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 29
- Average first fall frost
- Oct 10
- Growing season
- 162 days
Safer after May 11 (1-in-10 risk)
Possible by Sep 25 (1-in-10 risk)
Last frost typically in 177 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 28 · May 8 · May 25 | Sep 15 · Sep 30 · Oct 13 | 141 days | 100% |
| Frost / freeze (32°F) | Apr 18 · Apr 29 · May 11 | Sep 25 · Oct 10 · Oct 28 | 162 days | 100% |
| Hard freeze (28°F) | Apr 8 · Apr 20 · May 1 | Oct 5 · Oct 24 · Nov 7 | 186 days | 100% |
Planting calendar for Rensselaer Falls
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 29 – Jun 4 |
| Tomatoes | Transplant outdoors | May 15 – Jun 20 |
| Peppers | Start seeds indoors | Mar 29 – Apr 29 |
| Peppers | Transplant outdoors | May 29 – Jun 29 |
| Eggplant | Start seeds indoors | Apr 15 – May 14 |
| Eggplant | Transplant outdoors | May 29 – Jun 29 |
| Cucumbers | Sow outdoors | May 29 – Jun 30 |
| Summer squash | Sow outdoors | May 15 – Jun 29 |
| Winter squash & pumpkins | Sow outdoors | May 29 – Jun 29 |
| Snap beans | Sow outdoors | May 15 – Jul 23 |
| Sweet corn | Sow outdoors | May 15 – Jun 20 |
| Watermelon & cantaloupe | Sow outdoors | May 29 – Jun 29 |
| Okra | Sow outdoors | May 22 – Jun 14 |
| Peas | Sow outdoors (spring) | Mar 29 – May 14 |
| Potatoes | Plant outdoors (spring) | Mar 29 – May 29 |
| Onions | Start seeds indoors (spring) | Feb 15 – Mar 14 |
| Onions | Transplant outdoors (spring) | Apr 15 – May 14 |
| Broccoli | Start seeds indoors (spring) | Mar 11 – Apr 14 |
| Broccoli | Transplant outdoors (spring) | Apr 15 – May 14 |
| Broccoli | Start seeds indoors (fall) | Jun 10 – Jun 20 |
| Broccoli | Transplant outdoors (fall) | Jul 10 – Jul 21 |
| Cabbage | Start seeds indoors (spring) | Mar 1 – Mar 29 |
| Cabbage | Transplant outdoors (spring) | Mar 29 – Apr 29 |
| Cabbage | Start seeds indoors (fall) | May 31 – Jun 30 |
| Cabbage | Transplant outdoors (fall) | Jun 30 – Jul 31 |
| Leaf lettuce | Sow outdoors (spring) | Mar 29 – Jun 14 |
| Leaf lettuce | Sow outdoors (fall) | Jun 30 – Aug 16 |
| Spinach | Sow outdoors (spring) | Mar 22 – May 5 |
| Spinach | Sow outdoors (fall) | Jul 17 – Aug 21 |
| Radishes | Sow outdoors (spring) | Mar 29 – May 19 |
| Radishes | Sow outdoors (fall) | Jun 30 – Aug 31 |
| Kale | Sow outdoors (spring) | Apr 15 – May 5 |
| Kale | Sow outdoors (fall) | Jun 23 – Jul 31 |
| Carrots | Sow outdoors (spring) | Apr 29 – Jun 14 |
| Carrots | Sow outdoors (fall) | May 31 – Jul 16 |
| Garlic | Plant outdoors (fall) | Sep 30 – Oct 31 |
Where these dates come from
ZIP code 13680 is matched to the NOAA station Ogdensburg 4 Ne, NY, 17.7 km away, at 280 ft elevation (35 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Ogdensburg 4 Ne, NY (used) | 280 ft | Apr 29 | Oct 10 |
| Canton 4 Se, NY | 448 ft | May 9 | Sep 30 |
| Colton 2 N, NY | 580 ft | May 5 | Oct 8 |
| Gouverneur 3 Nw, NY | 420 ft | May 14 | Sep 26 |
Frost dates near Rensselaer Falls
- Heuvelton, NY 13654 · last Apr 29, first Oct 10
- De Kalb Junction, NY 13630 · last May 9, first Sep 30
- Canton, NY 13617 · last May 9, first Sep 30
- Pyrites, NY 13677 · last May 9, first Sep 30
- Lisbon, NY 13658 · last Apr 29, first Oct 10
- De Peyster, NY 13633 · last May 14, first Sep 26
- Ogdensburg, NY 13669 · last Apr 29, first Oct 10
- Richville, NY 13681 · last May 14, first Sep 26
Frequently asked questions
- When is the last frost in Rensselaer Falls, NY?
- For ZIP code 13680, the average last spring frost (32°F) is April 29, based on NOAA 1991-2020 climate normals for the Ogdensburg 4 Ne, NY weather station. There is a 1-in-10 chance of a frost after May 11.
- When is the first frost in Rensselaer Falls, NY?
- The average first fall frost (32°F) is October 10. There is a 1-in-10 chance of frost by September 25, so tender plants are at risk from that point on.
- How long is the growing season in 13680?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 162 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.