Hornell, NY frost dates
Last spring frostMay 11median date
First fall frostOct 8median date
Growing season150 daysfrost-free
Hardiness zone5bZone 5b
How Hornell compares
- In 8 years out of 10, the last spring frost in Hornell falls between April 28 and May 26, a 28-day window. The first fall frost falls between September 26 and October 25.
- The median last frost is 8 days later than the New York median of May 3.
- Its 150-day growing season is longer than 25% of the 1,610 New York places with a regular frost season (state median 163 days).
- The last frost is 10 days later than the zone 5b median of May 1. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 5b chart.
- The weather station records an average of 165 nights a year at or below 32°F.
- Compared with Rochester, NY, 97 km away, the last frost here is 17 days later than there and the growing season is 34 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | April 28 |
| 50% (median) | May 11 |
| 10% (safe for tender plants) | May 26 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | September 26 |
| 50% (median) | October 8 |
| 90% (late) | October 25 |
Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.
Planting calendar for Hornell, NY
Hornell, NY frost dates — last frost May 11, first frost Oct 8, zone 5b. whenisthelastfrost.com
Crop
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Start indoors: Feb 16 to Mar 2Transplant outside: Apr 13 to Apr 27
Start indoors: Mar 2 to Mar 16Transplant outside: May 25 to Jun 8
Start indoors: Mar 2 to Mar 16Transplant outside: May 25 to Jun 8
Start indoors: Mar 16 to Mar 30Transplant outside: May 18 to Jun 1
Start indoors: Mar 16 to Mar 30Transplant outside: Apr 20 to May 4Sow outdoors: Apr 13 to May 18Plant for fall: Aug 13 to Sep 10
Start indoors: Mar 16 to Mar 30Transplant outside: Apr 13 to Apr 27Sow outdoors: Apr 13 to Apr 27Plant for fall: Jul 30 to Aug 20
Start indoors: Mar 16 to Mar 30Transplant outside: Apr 27 to May 11Plant for fall: Jul 2 to Jul 23
Start indoors: Mar 16 to Mar 30Transplant outside: Apr 20 to May 4Plant for fall: Jul 2 to Jul 23
Start indoors: Mar 16 to Mar 30Transplant outside: Apr 27 to May 11Plant for fall: Jul 2 to Jul 23
Start indoors: Mar 30 to Apr 13Transplant outside: Jun 1 to Jun 15Sow outdoors: Jun 1 to Jun 15
Start indoors: Mar 30 to Apr 13Transplant outside: May 18 to Jun 1
Sow outdoors: Mar 30 to Apr 20Plant for fall: Jul 16 to Aug 6
Sow outdoors: Mar 30 to Apr 20Plant for fall: Aug 13 to Sep 3
Sow outdoors: Apr 6 to May 18Plant for fall: Aug 27 to Sep 17
Start indoors: Apr 13 to Apr 20Transplant outside: May 25 to Jun 1Sow outdoors: May 18 to Jun 1Plant for fall: Jul 23 to Aug 6
Start indoors: Apr 13 to Apr 20Sow outdoors: May 18 to Jun 1Plant for fall: Jul 30 to Aug 13
Start indoors: Apr 13 to Apr 20Sow outdoors: May 18 to Jun 1
Start indoors: Apr 13 to Apr 20Transplant outside: May 25 to Jun 8
Sow outdoors: Apr 20 to May 18Plant for fall: Jul 16 to Jul 30
Sow outdoors: Apr 20 to May 18Plant for fall: Jul 30 to Aug 13
Sow outdoors: Apr 20 to May 11
Sow outdoors: Apr 27 to May 25Plant for fall: Jul 30 to Aug 13
Sow outdoors: Apr 27 to May 18Plant for fall: Aug 13 to Sep 3
Sow outdoors: May 18 to Jun 8Plant for fall: Jul 23 to Aug 6
Sow outdoors: May 18 to Jun 1
Transplant outside: May 25 to Jun 15
Plant for fall: Sep 24 to Oct 29
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Hornell, NY
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Feb 16 – Mar 2 | Apr 13 – Apr 27 | — | — |
| Peppers | Mar 2 – Mar 16 | May 25 – Jun 8 | — | — |
| Eggplant | Mar 2 – Mar 16 | May 25 – Jun 8 | — | — |
| Tomatoes | Mar 16 – Mar 30 | May 18 – Jun 1 | — | — |
| Lettuce | Mar 16 – Mar 30 | Apr 20 – May 4 | Apr 13 – May 18 | Aug 13 – Sep 10 |
| Kale | Mar 16 – Mar 30 | Apr 13 – Apr 27 | Apr 13 – Apr 27 | Jul 30 – Aug 20 |
| Broccoli | Mar 16 – Mar 30 | Apr 27 – May 11 | — | Jul 2 – Jul 23 |
| Cabbage | Mar 16 – Mar 30 | Apr 20 – May 4 | — | Jul 2 – Jul 23 |
| Cauliflower | Mar 16 – Mar 30 | Apr 27 – May 11 | — | Jul 2 – Jul 23 |
| Okra | Mar 30 – Apr 13 | Jun 1 – Jun 15 | Jun 1 – Jun 15 | — |
| Basil | Mar 30 – Apr 13 | May 18 – Jun 1 | — | — |
| Peas | — | — | Mar 30 – Apr 20 | Jul 16 – Aug 6 |
| Spinach | — | — | Mar 30 – Apr 20 | Aug 13 – Sep 3 |
| Radishes | — | — | Apr 6 – May 18 | Aug 27 – Sep 17 |
| Cucumbers | Apr 13 – Apr 20 | May 25 – Jun 1 | May 18 – Jun 1 | Jul 23 – Aug 6 |
| Zucchini & Summer Squash | Apr 13 – Apr 20 | — | May 18 – Jun 1 | Jul 30 – Aug 13 |
| Winter Squash & Pumpkins | Apr 13 – Apr 20 | — | May 18 – Jun 1 | — |
| Melons & Watermelon | Apr 13 – Apr 20 | May 25 – Jun 8 | — | — |
| Carrots | — | — | Apr 20 – May 18 | Jul 16 – Jul 30 |
| Beets | — | — | Apr 20 – May 18 | Jul 30 – Aug 13 |
| Potatoes | — | — | Apr 20 – May 11 | — |
| Swiss Chard | — | — | Apr 27 – May 25 | Jul 30 – Aug 13 |
| Cilantro | — | — | Apr 27 – May 18 | Aug 13 – Sep 3 |
| Green Beans | — | — | May 18 – Jun 8 | Jul 23 – Aug 6 |
| Sweet Corn | — | — | May 18 – Jun 1 | — |
| Sweet Potatoes | — | May 25 – Jun 15 | — | — |
| Garlic | — | — | — | Sep 24 – Oct 29 |
Dates come from the median frost dates and common extension-service timing. Adjust for your soil temperature, microclimate and the varieties you grow.
About these dates
Based on 1991–2020 NOAA climate normals for the Hornell Almond Dam, NY weather station, 5 km away (elevation 1,325 ft (404 m)).
Frost dates near Hornell
- Canisteo May 11 · Oct 8
- Almond May 18 · Oct 1
- Arkport May 11 · Oct 8
- Alfred Station May 18 · Oct 1
- Alfred May 18 · Oct 1
- Avoca May 12 · Oct 3
- Canaseraga May 4 · Oct 16
- Greenwood May 18 · Oct 1
- Cameron May 12 · Oct 3
- Andover May 15 · Oct 2
Frequently asked questions
When is the last frost in Hornell, NY?
The median last spring frost in Hornell, NY is May 11. There is still about a 10% chance of frost after May 26, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Hornell, NY?
The median first fall frost is October 8, with about a 10% chance of frost before September 26.
How long is the growing season in Hornell, NY?
About 150 days between the median last spring frost and first fall frost.
What planting zone is Hornell, NY?
Hornell, NY is in USDA hardiness zone 5b.