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

Planting zone for 13738 — Blodgett Mills, NY

ZIP code 13738 (Blodgett Mills, Cortland County) is in USDA zone 5b: the coldest winter night averages −15 to −10 °F. The median last spring frost is May 13 and the first fall frost October 4.

Where ZIP 13738 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.

Zone5b−15 to −10 °F
Coldest night−26.1 to −23.3 °C
Last frostMay 13
First frostOct 4
2012 zone5b

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 5b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Blodgett Mills, 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 Blodgett Mills, NY

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMay 13median — 50% chance of a later frost
Safe for tender plantsMay 29only 10% chance of frost after
First fall frostOctober 4median — 10% chance by Sep 23
Growing season145 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 30 and returns around October 20.

From the NOAA station Ithaca 13 E, NY — 11 miles away, elevation 1,227 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 13738

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Apr 1 – Apr 15
SpinachSow outdoors · Apr 1 – Apr 22
Broccoli, cabbageStart indoors · Mar 4 – Mar 18
Broccoli, cabbageTransplant · Apr 22 – May 6
Onion setsPlant outdoors · Apr 15 – Apr 29
PotatoesPlant outdoors · Apr 22 – May 6
LettuceSow outdoors · Apr 15 – Apr 29
Carrots, beetsSow outdoors · Apr 22 – May 6
TomatoesStart indoors · Mar 18 – Apr 1
TomatoesTransplant · May 20 – Jun 3
Peppers, eggplantStart indoors · Mar 4 – Mar 18
Peppers, eggplantTransplant · May 27 – Jun 10
BeansSow outdoors · May 20 – Jun 3
Sweet cornSow outdoors · May 20 – Jun 3
Cucumbers, squashSow outdoors · May 20 – Jun 3
Fall lettuce, spinachSow outdoors · Aug 9 – Aug 23
GarlicPlant cloves · Sep 20 – Oct 25
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (May 13) and first fall frost (Oct 4) 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 13738 came on Apr 12 — 5 days earlier than the 1991–2020 average (Apr 17).

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 Blodgett Mills, NY

The soil mapped at the center of ZIP 13738 is Wayland — silt loam, poorly drained.

TextureSilt loama good balance for most vegetables
pH5.3strongly acidic; most vegetables like 6.0–7.0
DrainagePoorly drainedconsider raised beds
Organic matter9%high
Hydrologic groupB/Dmoderate when drained; wet otherwise
Farmland classNot prime farmlandUSDA classification

Map unit: Wayland soils complex, non-calcareous substratum, 0 to 3 percent slopes, frequently flooded.

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 13738; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Blodgett Mills, NY

Summer high79 °Faverage high, July
Winter low13 °Faverage low, January
Hot days2days a year at 90 °F or more
Freezing nights155nights a year at 32 °F or less
Growing degree days2,023base 50 °F — the season’s usable heat
Longest day15 h 19 mindaylight on June 21
Shortest day9 h 03 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation44.3 inper year, rain and melted snow

Average high and low, by month

0°10°20°30°40°50°60°70°80°90°32 °FJanuary: average high 30 °F, low 13 °F 30°13° JanFebruary: average high 33 °F, low 14 °F 33°14° FebMarch: average high 41 °F, low 22 °F 41°22° MarApril: average high 54 °F, low 33 °F 54°33° AprMay: average high 67 °F, low 43 °F 67°43° MayJune: average high 75 °F, low 52 °F 75°52° JunJuly: average high 79 °F, low 56 °F 79°56° JulAugust: average high 77 °F, low 54 °F 77°54° AugSeptember: average high 70 °F, low 48 °F 70°48° SepOctober: average high 58 °F, low 38 °F 58°38° OctNovember: average high 46 °F, low 29 °F 46°29° NovDecember: average high 35 °F, low 21 °F 35°21° Dec

Precipitation by month inches

0″1″2″3″4″5″January: 3.01 in precipitation 3.0 JanFebruary: 2.81 in precipitation 2.8 FebMarch: 3.23 in precipitation 3.2 MarApril: 3.72 in precipitation 3.7 AprMay: 3.97 in precipitation 4.0 MayJune: 4.62 in precipitation 4.6 JunJuly: 4.13 in precipitation 4.1 JulAugust: 4.41 in precipitation 4.4 AugSeptember: 3.88 in precipitation 3.9 SepOctober: 3.91 in precipitation 3.9 OctNovember: 3.28 in precipitation 3.3 NovDecember: 3.37 in precipitation 3.4 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Ithaca 13 E, NY (11 mi away); precipitation: Marathon 1.0 Nw, NY (9 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 5b.

130455b
Cortland, NY · 4 mi
131015b
Mc Graw, NY · 4 mi
138035b
Marathon, NY · 8 mi
130565b
East Homer, NY · 8 mi
131025b
Mc Lean, NY · 9 mi
130535b
Dryden, NY · 9 mi
130405b
Cincinnatus, NY · 10 mi
130875b
Little York, NY · 10 mi

New York planting zones →

Questions about 13738

What planting zone is ZIP code 13738?

ZIP code 13738 (Blodgett Mills, NY) is in USDA hardiness zone 5b on the 2023 map: the coldest night of an average winter reaches −15 to −10 °F (−26.1 to −23.3 °C).

When is the last frost in Blodgett Mills, NY?

The median last spring frost (32 °F) near 13738 is May 13; after May 29 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Ithaca 13 E station.

When is the first frost in Blodgett Mills, NY?

The median first fall frost near 13738 is October 4, giving a median frost-free growing season of 145 days.

When should I plant tomatoes in 13738?

Start tomato seeds indoors around Mar 18 – Apr 1 and set transplants outside around May 20 – Jun 3, one to three weeks after the median last frost.

How much rain and snow does 13738 get?

About 44.3 inches of precipitation a year (NOAA 1991–2020 normals, Marathon 1.0 Nw station).

How hot do summers get in Blodgett Mills, NY?

The average high peaks at 79 °F in July, with about 2 days a year at 90 °F or more.

What kind of soil does 13738 have?

The USDA soil survey maps Wayland at the center of ZIP 13738: silt loam, poorly drained, pH about 5.3 (strongly acidic).

Did spring come early in Blodgett Mills, NY in 2026?

Spring leaf-out near 13738 came on Apr 12 in 2026, 5 days earlier than the 1991–2020 average (Apr 17), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Blodgett Mills, NY?

Long-day onions: the longest day near 13738 is 15 h 19 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).