Andover, NY frost dates
Last spring frostMay 15median date
First fall frostOct 2median date
Growing season140 daysfrost-free
Hardiness zone6aZone 6a
How Andover compares
- In 8 years out of 10, the last spring frost in Andover falls between April 30 and May 31, a 31-day window. The first fall frost falls between September 18 and October 17.
- The median last frost is 12 days later than the New York median of May 3.
- Its 140-day growing season is longer than 10% of the 1,610 New York places with a regular frost season (state median 163 days).
- The last frost is 16 days later than the zone 6a median of Apr 29. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 6a chart.
- The weather station records an average of 169 nights a year at or below 32°F.
- Compared with Rochester, NY, 116 km away, the last frost here is 21 days later than there and the growing season is 44 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | April 30 |
| 50% (median) | May 15 |
| 10% (safe for tender plants) | May 31 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | September 18 |
| 50% (median) | October 2 |
| 90% (late) | October 17 |
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 Andover, NY
Andover, NY frost dates — last frost May 15, first frost Oct 2, zone 6a. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Feb 20 to Mar 6Transplant outside: Apr 17 to May 1
Start indoors: Mar 6 to Mar 20Transplant outside: May 29 to Jun 12
Start indoors: Mar 6 to Mar 20Transplant outside: May 29 to Jun 12
Start indoors: Mar 20 to Apr 3Transplant outside: May 22 to Jun 5
Start indoors: Mar 20 to Apr 3Transplant outside: Apr 24 to May 8Sow outdoors: Apr 17 to May 22Plant for fall: Aug 7 to Sep 4
Start indoors: Mar 20 to Apr 3Transplant outside: Apr 17 to May 1Sow outdoors: Apr 17 to May 1Plant for fall: Jul 24 to Aug 14
Start indoors: Mar 20 to Apr 3Transplant outside: May 1 to May 15Plant for fall: Jun 26 to Jul 17
Start indoors: Mar 20 to Apr 3Transplant outside: Apr 24 to May 8Plant for fall: Jun 26 to Jul 17
Start indoors: Mar 20 to Apr 3Transplant outside: May 1 to May 15Plant for fall: Jun 26 to Jul 17
Start indoors: Apr 3 to Apr 17Transplant outside: Jun 5 to Jun 19Sow outdoors: Jun 5 to Jun 19
Start indoors: Apr 3 to Apr 17Transplant outside: May 22 to Jun 5
Sow outdoors: Apr 3 to Apr 24Plant for fall: Jul 10 to Jul 31
Sow outdoors: Apr 3 to Apr 24Plant for fall: Aug 7 to Aug 28
Sow outdoors: Apr 10 to May 22Plant for fall: Aug 21 to Sep 11
Start indoors: Apr 17 to Apr 24Transplant outside: May 29 to Jun 5Sow outdoors: May 22 to Jun 5Plant for fall: Jul 17 to Jul 31
Start indoors: Apr 17 to Apr 24Sow outdoors: May 22 to Jun 5Plant for fall: Jul 24 to Aug 7
Start indoors: Apr 17 to Apr 24Sow outdoors: May 22 to Jun 5
Start indoors: Apr 17 to Apr 24Transplant outside: May 29 to Jun 12
Sow outdoors: Apr 24 to May 22Plant for fall: Jul 10 to Jul 24
Sow outdoors: Apr 24 to May 22Plant for fall: Jul 24 to Aug 7
Sow outdoors: Apr 24 to May 15
Sow outdoors: May 1 to May 29Plant for fall: Jul 24 to Aug 7
Sow outdoors: May 1 to May 22Plant for fall: Aug 7 to Aug 28
Sow outdoors: May 22 to Jun 12Plant for fall: Jul 17 to Jul 31
Sow outdoors: May 22 to Jun 5
Transplant outside: May 29 to Jun 19
Plant for fall: Sep 18 to Oct 23
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Andover, NY
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Feb 20 – Mar 6 | Apr 17 – May 1 | — | — |
| Peppers | Mar 6 – Mar 20 | May 29 – Jun 12 | — | — |
| Eggplant | Mar 6 – Mar 20 | May 29 – Jun 12 | — | — |
| Tomatoes | Mar 20 – Apr 3 | May 22 – Jun 5 | — | — |
| Lettuce | Mar 20 – Apr 3 | Apr 24 – May 8 | Apr 17 – May 22 | Aug 7 – Sep 4 |
| Kale | Mar 20 – Apr 3 | Apr 17 – May 1 | Apr 17 – May 1 | Jul 24 – Aug 14 |
| Broccoli | Mar 20 – Apr 3 | May 1 – May 15 | — | Jun 26 – Jul 17 |
| Cabbage | Mar 20 – Apr 3 | Apr 24 – May 8 | — | Jun 26 – Jul 17 |
| Cauliflower | Mar 20 – Apr 3 | May 1 – May 15 | — | Jun 26 – Jul 17 |
| Okra | Apr 3 – Apr 17 | Jun 5 – Jun 19 | Jun 5 – Jun 19 | — |
| Basil | Apr 3 – Apr 17 | May 22 – Jun 5 | — | — |
| Peas | — | — | Apr 3 – Apr 24 | Jul 10 – Jul 31 |
| Spinach | — | — | Apr 3 – Apr 24 | Aug 7 – Aug 28 |
| Radishes | — | — | Apr 10 – May 22 | Aug 21 – Sep 11 |
| Cucumbers | Apr 17 – Apr 24 | May 29 – Jun 5 | May 22 – Jun 5 | Jul 17 – Jul 31 |
| Zucchini & Summer Squash | Apr 17 – Apr 24 | — | May 22 – Jun 5 | Jul 24 – Aug 7 |
| Winter Squash & Pumpkins | Apr 17 – Apr 24 | — | May 22 – Jun 5 | — |
| Melons & Watermelon | Apr 17 – Apr 24 | May 29 – Jun 12 | — | — |
| Carrots | — | — | Apr 24 – May 22 | Jul 10 – Jul 24 |
| Beets | — | — | Apr 24 – May 22 | Jul 24 – Aug 7 |
| Potatoes | — | — | Apr 24 – May 15 | — |
| Swiss Chard | — | — | May 1 – May 29 | Jul 24 – Aug 7 |
| Cilantro | — | — | May 1 – May 22 | Aug 7 – Aug 28 |
| Green Beans | — | — | May 22 – Jun 12 | Jul 17 – Jul 31 |
| Sweet Corn | — | — | May 22 – Jun 5 | — |
| Sweet Potatoes | — | May 29 – Jun 19 | — | — |
| Garlic | — | — | — | Sep 18 – Oct 23 |
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 Wellsville, NY weather station, 14 km away (elevation 1,509 ft (460 m)).
Frost dates near Andover
- Alfred May 18 · Oct 1
- Alfred Station May 18 · Oct 1
- Whitesville May 15 · Oct 2
- Greenwood May 18 · Oct 1
- Rexville May 15 · Oct 2
- Wellsville May 15 · Oct 2
- Scio May 4 · Oct 14
- Almond May 18 · Oct 1
- Belmont May 21 · Sep 30
- Canisteo May 11 · Oct 8
Frequently asked questions
When is the last frost in Andover, NY?
The median last spring frost in Andover, NY is May 15. There is still about a 10% chance of frost after May 31, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Andover, NY?
The median first fall frost is October 2, with about a 10% chance of frost before September 18.
How long is the growing season in Andover, NY?
About 140 days between the median last spring frost and first fall frost.
What planting zone is Andover, NY?
Andover, NY is in USDA hardiness zone 6a.