Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated

Planting zone for 12822 — Corinth, NY

ZIP code 12822 (Corinth, Saratoga County) is in USDA zone 5a: the coldest winter night averages −20 to −15 °F. The median last spring frost is April 30 and the first fall frost October 16.

Where ZIP 12822 is

Outlined: the ZIP code area · tap the map for the zone at any spot · scroll or pinch to zoom

Not the official USDA Plant Hardiness Zone Map. Zones come from the 2023 USDA hardiness-zone data by the PRISM Group, Oregon State University; we re-mapped and recolored them. The official map is at planthardiness.ars.usda.gov.

Zone5a−20 to −15 °F
Coldest night−28.9 to −26.1 °C
Last frostApr 30
First frostOct 16
2012 zone5a

Same zone as on the 2012 map. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 5a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Corinth, NY…

Forecast data: National Weather Service (api.weather.gov), public domain. This is not a warning service — for official frost and freeze warnings see weather.gov.

Frost dates in Corinth, NY

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 30median — 50% chance of a later frost
Safe for tender plantsMay 13only 10% chance of frost after
First fall frostOctober 16median — 10% chance by Oct 2
Growing season169 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 18 and returns around October 31.

From the NOAA station Conklingville Dam, NY — 6 miles away, elevation 807 ft. NOAA NCEI U.S. Climate Normals 1991–2020, 32 °F threshold. Low spots and valleys can freeze later in spring than the station.

When to plant vegetables in 12822

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 19 – Apr 2
SpinachSow outdoors · Mar 19 – Apr 9
Broccoli, cabbageStart indoors · Feb 19 – Mar 5
Broccoli, cabbageTransplant · Apr 9 – Apr 23
Onion setsPlant outdoors · Apr 2 – Apr 16
PotatoesPlant outdoors · Apr 9 – Apr 23
LettuceSow outdoors · Apr 2 – Apr 16
Carrots, beetsSow outdoors · Apr 9 – Apr 23
TomatoesStart indoors · Mar 5 – Mar 19
TomatoesTransplant · May 7 – May 21
Peppers, eggplantStart indoors · Feb 19 – Mar 5
Peppers, eggplantTransplant · May 14 – May 28
BeansSow outdoors · May 7 – May 21
Sweet cornSow outdoors · May 7 – May 21
Cucumbers, squashSow outdoors · May 7 – May 21
Fall lettuce, spinachSow outdoors · Aug 21 – Sep 4
GarlicPlant cloves · Oct 2 – Nov 6
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 30) and first fall frost (Oct 16) with the rules of thumb U.S. extension services publish. Cool-season crops take a light frost; warm-season crops do best once the soil is above about 60 °F.

When spring arrived in 2026

In 2026, spring leaf-out near 12822 came on Apr 17 — 8 days earlier than the 1991–2020 average (Apr 25).

JanFebMarAprMayJun

The Spring Index marks the day when accumulated warmth is enough for lilac and honeysuckle to leaf out — a widely used signal that the growing season has started. Source: USA National Phenology Network, www.usanpn.org — Spring Indices, first leaf, 2026 (data as of 2026-09-08) and 30-year average 1991–2020 (CC BY 4.0).

Soil in Corinth, NY

The soil mapped at the center of ZIP 12822 is Becket — moderately decomposed plant material, well drained.

TextureModerately decomposed plant materialtop layer
pH4.9strongly acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter70%high
Hydrologic groupCwater soaks in slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Becket fine sandy loam, 3 to 15 percent slopes, very bouldery.

Soil Survey Staff, Natural Resources Conservation Service, USDA. Soil Survey Geographic (SSURGO) Database, via Soil Data Access, accessed 2026-10-29. The soil at the center point of ZIP 12822; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Corinth, NY

Summer high77 °Faverage high, July
Winter low12 °Faverage low, January
Hot days1days a year at 90 °F or more
Freezing nights153nights a year at 32 °F or less
Growing degree days2,160base 50 °F — the season’s usable heat
Longest day15 h 23 mindaylight on June 21
Shortest day8 h 58 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation45.7 inper year, rain and melted snow
Snowfall60 inper year

Average high and low, by month

0°10°20°30°40°50°60°70°80°90°32 °FJanuary: average high 29 °F, low 12 °F 29°12° JanFebruary: average high 32 °F, low 13 °F 32°13° FebMarch: average high 40 °F, low 22 °F 40°22° MarApril: average high 53 °F, low 34 °F 53°34° AprMay: average high 66 °F, low 46 °F 66°46° MayJune: average high 73 °F, low 55 °F 73°55° JunJuly: average high 77 °F, low 60 °F 77°60° JulAugust: average high 76 °F, low 59 °F 76°59° AugSeptember: average high 69 °F, low 51 °F 69°51° SepOctober: average high 57 °F, low 40 °F 57°40° OctNovember: average high 45 °F, low 31 °F 45°31° NovDecember: average high 34 °F, low 21 °F 34°21° Dec

Precipitation by month inches · ❄ = snowfall

0″1″2″3″4″5″January: 3.48 in precipitation, 15.8 in snowfall 3.5❄16 JanFebruary: 2.89 in precipitation, 13.2 in snowfall 2.9❄13 FebMarch: 3.61 in precipitation, 14 in snowfall 3.6❄14 MarApril: 3.86 in precipitation, 2 in snowfall 3.9❄2 AprMay: 3.94 in precipitation, 0.1 in snowfall 3.9 MayJune: 4.71 in precipitation 4.7 JunJuly: 4.21 in precipitation 4.2 JulAugust: 3.77 in precipitation 3.8 AugSeptember: 3.23 in precipitation 3.2 SepOctober: 4.49 in precipitation, 0.2 in snowfall 4.5 OctNovember: 3.45 in precipitation, 3.1 in snowfall 3.5❄3 NovDecember: 4.06 in precipitation, 11.9 in snowfall 4.1❄12 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Conklingville Dam, NY (6 mi away); precipitation: Conklingville Dam, NY (6 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

3 of the 8 nearest ZIP codes are in a different zone — elevation and distance from water change winter lows quickly.

128595a
Porter Corners, NY · 5 mi
128335b
Greenfield Center, NY · 7 mi
128355a
Hadley, NY · 8 mi
128505a
Middle Grove, NY · 9 mi
128465a
Lake Luzerne, NY · 11 mi
128635b
Rock City Falls, NY · 12 mi
128315b
Gansevoort, NY · 12 mi
120255a
Broadalbin, NY · 14 mi

New York planting zones →

Questions about 12822

What planting zone is ZIP code 12822?

ZIP code 12822 (Corinth, NY) is in USDA hardiness zone 5a on the 2023 map: the coldest night of an average winter reaches −20 to −15 °F (−28.9 to −26.1 °C).

When is the last frost in Corinth, NY?

The median last spring frost (32 °F) near 12822 is April 30; after May 13 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Conklingville Dam station.

When is the first frost in Corinth, NY?

The median first fall frost near 12822 is October 16, giving a median frost-free growing season of 169 days.

When should I plant tomatoes in 12822?

Start tomato seeds indoors around Mar 5 – Mar 19 and set transplants outside around May 7 – May 21, one to three weeks after the median last frost.

How much rain and snow does 12822 get?

About 45.7 inches of precipitation a year and 60 inches of snowfall (NOAA 1991–2020 normals, Conklingville Dam station).

How hot do summers get in Corinth, NY?

The average high peaks at 77 °F in July, with about 1 days a year at 90 °F or more.

What kind of soil does 12822 have?

The USDA soil survey maps Becket at the center of ZIP 12822: moderately decomposed plant material, well drained, pH about 4.9 (strongly acidic).

Did spring come early in Corinth, NY in 2026?

Spring leaf-out near 12822 came on Apr 17 in 2026, 8 days earlier than the 1991–2020 average (Apr 25), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Corinth, NY?

Long-day onions: the longest day near 12822 is 15 h 23 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).