USDA Hardiness Zone 7b
Frost Dates for 11419 — South Richmond Hill, New York
NOAA 1991–2020 normals from New York Jfk International Airport, NY (11 ft), 5 miles southeast.
Updated
In South Richmond Hill, the last spring frost (32°F) is around April 2 in half of years and has passed by April 13 in nine years out of ten. The first fall frost comes around November 14, as early as November 2 one year in ten, leaving a typical freeze-free season of 226 days (NOAA, New York Jfk International Airport, NY).
- Last spring frost
- April 2
- First fall frost
- November 14
- Growing season
- 226 days
- Hardiness zone
- 7b
50% probability
50% probability
freeze-free, 50%
5 to 10°F (-15.0 to -12.2°C) coldest night
- First snow
- December 10
- Last snow
- March 21
- Winters with snow
- 100%
- Snow per year
- 25.9"
median, 1991–2020
median, 1991–2020
30 of 30 observed
NOAA normal
Frost risk by date in South Richmond Hill
Half of springs at New York Jfk International Airport, NY see their last 32°F night by April 2; only one in ten is past it by March 20, and one in ten still has one after April 13. Planting tender crops after April 5 leaves a 30% risk of a frost on them, after April 8 20%, and after April 13 10%. The 11 days between the even-odds date and the one-in-ten date is narrower than at 97% of the 173 New York stations behind this site's ZIP pages.
In fall the first 32°F night comes by November 14 in half of years, as early as November 2 one year in ten, and holds off past December 1 one year in ten. A hard freeze of 28°F follows 12 days later, around November 26; in spring the one-in-ten date for 28°F is April 4, 9 days before the 32°F one. The freeze-free season lasts 226 days in a typical year, longer than at 98% of the 173 New York stations; it reaches 247 days one year in ten and falls short of 209 one year in ten. On average 74 nights a year drop to 32°F or below. Nights of 36°F, when frost can still settle on leaves in low, open spots, continue 9 days longer, to about April 11, and return around November 2. Severe cold of 16°F or below comes in 99% of winters, usually between January 5 and February 17.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 1 | Apr 4 | Apr 6 | Apr 8 | Apr 11 | Apr 13 | Apr 16 | Apr 19 | Apr 23 |
| 32°F | Mar 20 | Mar 25 | Mar 29 | Mar 31 | Apr 2 | Apr 3 | Apr 5 | Apr 8 | Apr 13 |
| 28°F | Mar 9 | Mar 13 | Mar 16 | Mar 19 | Mar 23 | Mar 26 | Mar 30 | Apr 1 | Apr 4 |
| 24°F | Feb 25 | Mar 3 | Mar 7 | Mar 9 | Mar 12 | Mar 15 | Mar 18 | Mar 23 | Mar 28 |
| 20°F | Feb 11 | Feb 20 | Feb 24 | Feb 28 | Mar 2 | Mar 6 | Mar 9 | Mar 13 | Mar 19 |
| 16°F99% of yrs | Jan 25 | Feb 2 | Feb 7 | Feb 12 | Feb 17 | Feb 22 | Feb 26 | Mar 1 | Mar 7 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 21 | Oct 25 | Oct 28 | Oct 31 | Nov 2 | Nov 5 | Nov 7 | Nov 11 | Nov 15 |
| 32°F | Nov 2 | Nov 6 | Nov 9 | Nov 12 | Nov 14 | Nov 17 | Nov 21 | Nov 25 | Dec 1 |
| 28°F | Nov 10 | Nov 14 | Nov 18 | Nov 22 | Nov 26 | Nov 29 | Dec 2 | Dec 7 | Dec 13 |
| 24°F | Nov 19 | Nov 27 | Dec 1 | Dec 3 | Dec 7 | Dec 12 | Dec 16 | Dec 21 | Dec 29 |
| 20°F | Dec 1 | Dec 8 | Dec 14 | Dec 19 | Dec 23 | Dec 28 | Jan 1 | Jan 5 | Jan 13 |
| 16°F99% of yrs | Dec 16 | Dec 24 | Dec 29 | Jan 1 | Jan 5 | Jan 8 | Jan 13 | Jan 18 | Jan 26 |
Freeze probabilities 1991–2020 at New York Jfk International Airport, NY, from NOAA NCEI U.S. Climate Normals. Where a temperature is reached in fewer than 99.5% of years, the dates describe only the years that reach it. Not a forecast.
Frost risk on any date in 11419 →Compare South Richmond Hill with another place →
Weather by month in South Richmond Hill
July is the warmest month at New York Jfk International Airport, NY, averaging 84°F by day and 69°F at night; January is the coldest at 40°F and 26°F. A freezing night is all but certain in every month from December to March (a 90% chance or more). From May to October the chance of a 32°F night stays under 10% each month. In spring, April still brings one in 59% of years.
Warmth for growing adds up to 3,483 growing degree days a year (base 50°F), more than at 95% of the 173 New York stations. 30% of them (1,044) have built up by the end of June, and July adds the most, 811. Precipitation totals 43.5 inches a year, most in August (4.1") and least in February (2.8"); May to September bring 44% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 40 | 26 | 3.2 | 100% | 22 | 1 |
| Feb | 42 | 27 | 2.8 | 100% | 20 | 2 |
| Mar | 49 | 34 | 3.9 | 100% | 12 | 14 |
| Apr | 59 | 43 | 3.6 | 59% | 1 | 95 |
| May | 68 | 53 | 3.7 | 0% | 0 | 326 |
| Jun | 78 | 62 | 3.9 | 0% | 0 | 606 |
| Jul | 84 | 69 | 3.9 | 0% | 0 | 811 |
| Aug | 82 | 68 | 4.1 | 0% | 0 | 775 |
| Sep | 76 | 61 | 3.6 | 0% | 0 | 552 |
| Oct | 65 | 50 | 3.7 | 7% | <1 | 242 |
| Nov | 54 | 40 | 3.1 | 88% | 4 | 51 |
| Dec | 45 | 32 | 4.0 | 100% | 16 | 8 |
Monthly normals 1991–2020 at New York Jfk International Airport, NY (11 ft), NOAA NCEI. "32°F night": chance of at least one in the month. GDD: growing degree days, base 50°F.
Compared with the next station
The nearest other station, New York Laguardia Airport, NY, 7 miles northwest of South Richmond Hill, has a last frost 7 days earlier (March 26), a first frost 11 days later (November 25), a season 18 days longer.
When it snows in South Richmond Hill, New York
The first measurable snow (0.1 inch or more) in South Richmond Hill usually arrives around December 10, and the last of the season around March 21. Those are the middle dates across the winters of 1991–2020 at New York Jfk International Airport, NY, 4.7 miles away: half of years saw snow earlier, half later. Every one of those winters saw snow. The last 32°F night of spring typically comes 12 days after the last snow.
Planting calendar for 11419
| When | What to do |
|---|---|
| January 22 – February 5 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| February 5 – February 19 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| March 5 – March 19 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| April 2 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by August 22 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by October 31 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| November 14 onward | Plant garlic, mulch beds, lift tender bulbsGarlic wants a cold spell; bare soil loses structure over winter. |
The weeks before and after the 50% dates are general rules of thumb, not NOAA figures; a seed packet gives the timing for each variety.
Where these figures come from
ZIP 11419 is 5 miles from New York Jfk International Airport, NY, which stands at 11 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 33 other ZIP codes share the station; its figures are presented in full for 11208 (Brooklyn). The 2023 USDA Plant Hardiness Zone Map lists ZIP 11419 in zone 7b, the band where the coldest night of the year averaged 5 to 10°F (-15.0 to -12.2°C) over 1991–2020; a zone describes winter lows, not frost dates.
Hardiness zone and temperature range: USDA Plant Hardiness Zone Map 2023 (USDA-ARS, Oregon State University), ZIP-code listing, unchanged. °C converted from °F by this site.
Thirty-year averages, not a forecast: check the forecast before planting out. How stations are matched and which pages are offered to search engines: methodology.