GreenlyNew York: frost dates
United States
In New York the last spring frost usually comes around 3 April and the first autumn frost around 20 November, which leaves about 231 frost-free days (median of 2016–2025). Tomato seedlings can go into open ground around 3 May.
| Last spring frost | around 3 April |
|---|---|
| First autumn frost | around 20 November |
| Frost-free days | 231 days |
Median of 2016–2025 for the 25 km grid cell of the city: the last day at or below 0 °C in spring and the first in autumn (ERA5 reanalysis via Open-Meteo). In a cold year a frost can come a week or two later — Greenly warns 48 hours ahead.
When to sow and plant
| Crop | Sow for seedlings | Plant out in a greenhouse | Open ground |
|---|---|---|---|
| Achocha | 8 February | 20 March | 10 April |
| Arugula | — | 20 February | sow 13 March |
| Basil | 23 March | 30 April | 21 May |
| Beet | — | 20 February | sow 13 March |
| Bell Pepper | 15 February | 30 April | 21 May |
| Black-eyed Susan | 7 February | — | 10 April |
| Bok Choy | 13 February | 20 March | 10 April |
| Broad bean | — | 20 February | sow 13 March |
| Broccoli | — | 20 February | sow 13 March |
| Brussels Sprouts | 6 January | 20 February | 13 March |
| Cabbage | — | 20 February | sow 13 March |
| Calendula | — | 20 February | sow 13 March |
| Carrot | — | — | sow 13 March |
| Cauliflower | 9 January | 20 February | 13 March |
| Celeriac | 2 January | 20 March | 10 April |
| Celery | 2 January | 20 March | 10 April |
| Celosia | 6 March | 20 April | 11 May |
| Chamomile | — | 20 February | sow 13 March |
| Chayote | 26 December | 24 March | 14 April |
| Chickpea | — | — | sow 13 March |
| Chili Pepper | 25 February | 10 May | 31 May |
| China aster | 9 March | 30 April | 21 May |
| Chives | — | — | sow 13 March |
| Cilantro | — | 20 February | sow 13 March |
| Corn | — | 24 March | sow 14 April |
| Cosmos | 6 March | 20 April | 11 May |
| Cucumber | 19 March | 30 April | 21 May |
| Daikon | — | 20 February | sow 13 March |
| Delphinium | 13 January | — | 13 March |
| Dill | — | 20 February | sow 13 March |
| Eggplant | 19 February | 30 April | 21 May |
| Florence fennel | 3 February | 20 March | 10 April |
| Garden sorrel | — | 20 February | sow 13 March |
| Green Beans | 15 February | 24 March | 14 April |
| Hyssop | — | — | sow 13 March |
| Kale | — | 20 February | sow 13 March |
| Kiwano | 11 March | 12 April | 3 May |
| Kohlrabi | — | 20 February | sow 13 March |
| Leek | 12 December | 20 February | 13 March |
| Lemon balm | — | 20 February | sow 13 March |
| Lettuce | — | 20 February | sow 13 March |
| Lisianthus | 25 November | 20 February | 13 March |
| Lovage | — | — | sow 13 March |
| Luffa | 19 March | 30 April | 21 May |
| Marigold | 6 February | 20 March | 10 April |
| Melon | 9 March | 30 April | 21 May |
| Microgreens | — | 20 April | sow 11 May |
| Moringa | 16 March | 10 May | 31 May |
| Mustard greens | — | 20 February | sow 13 March |
| Napa cabbage | 15 February | 20 March | 10 April |
| Nasturtium | 10 February | 20 March | 10 April |
| Okra | 19 March | 30 April | 21 May |
| Oregano | 22 December | 20 February | 13 March |
| Pansy | 26 December | 20 February | 13 March |
| Parsley | — | 20 February | sow 13 March |
| Parsnip | — | — | sow 13 March |
| Peanut | 24 March | 30 April | 21 May |
| Peas | — | 20 February | sow 13 March |
| Petunia | 26 February | 30 April | 21 May |
| Physalis | 26 February | 12 April | 3 May |
| Pumpkin | 6 March | 12 April | 3 May |
| Purple coneflower | 10 January | — | 13 March |
| Radish | — | — | sow 13 March |
| Sage | 2 January | 20 February | 13 March |
| Snapdragon | 17 December | 20 February | 13 March |
| Spinach | — | 20 February | sow 13 March |
| Stevia | 22 February | 12 April | 3 May |
| Stock | — | 20 February | sow 13 March |
| Sunflower | — | 20 April | sow 11 May |
| Sweet Corn | — | 24 March | sow 14 April |
| Sweet pea | 9 January | 20 February | 13 March |
| Sweet William | — | — | sow 13 March |
| Swiss Chard | — | 20 February | sow 13 March |
| Thyme | — | 20 February | sow 13 March |
| Tomato | 14 February | 12 April | 3 May |
| Turnip | — | 20 February | sow 13 March |
| Watercress | — | 20 February | sow 13 March |
| Watermelon | 29 March | 30 April | 21 May |
| Zinnia | 5 April | 10 May | 31 May |
| Zucchini | 11 March | 12 April | 3 May |
Planting out: a week after the last frost once the soil is warm enough for the crop; frost-hardy crops three weeks before it; an unheated greenhouse three weeks earlier. Seedlings are sown so they are ready on that day.
New York: weather for the next 7 days
Forecast by Open-Meteo. Nights at or below 0 °C are marked as frost.
Weather in New York by month
Average weather in New York over 2016–2025: the warmest month is July, the wettest July.
| Month | Day, °C | Night, °C | Rain, mm | Rainy days |
|---|---|---|---|---|
| January | 4.6 | -2.8 | 93 | 10 |
| February | 6.8 | -2 | 94 | 10 |
| March | 10.7 | 1.2 | 117 | 10 |
| April | 16 | 6.2 | 111 | 12 |
| May | 21.1 | 11.7 | 113 | 13 |
| June | 26.8 | 17.2 | 86 | 11 |
| July | 29.9 | 21.1 | 144 | 14 |
| August | 28.4 | 20 | 114 | 13 |
| September | 24.8 | 16.7 | 122 | 10 |
| October | 19.3 | 11 | 129 | 10 |
| November | 12.2 | 4.1 | 78 | 9 |
| December | 6.5 | -0.7 | 110 | 10 |
Average of the daily highs and lows, rain per month and days with at least 1 mm (ERA5 via Open-Meteo, the same grid cell as the frost dates).
Planted in autumn
| Crop | Plant around |
|---|---|
| Bearded Iris | 21 October |
| Crocus | 21 October |
| Daffodil | 21 October |
| Garlic | 21 October |
| Hyacinth | 21 October |
| Lily | 21 October |
| Peony | 21 October |
| Saffron | 21 October |
| Tulip | 21 October |
| Wild garlic | 21 October |
A month before the first autumn frost, so the roots grow before winter.