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

Planting zone for 19040 — Hatboro, PA

ZIP code 19040 (Hatboro, Montgomery County) is in USDA zone 7a: the coldest winter night averages 0 to 5 °F. The median last spring frost is April 11 and the first fall frost November 1.

Where ZIP 19040 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.

Zone7a0 to 5 °F
Coldest night−17.8 to −15 °C
Last frostApr 11
First frostNov 1
2012 zone7a

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 7a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Hatboro, PA…

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 Hatboro, PA

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 11median — 50% chance of a later frost
Safe for tender plantsApril 27only 10% chance of frost after
First fall frostNovember 1median — 10% chance by Oct 17
Growing season205 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 30 and returns around November 13.

From the NOAA station Willow Grove NAS, PA — 2 miles away, elevation 361 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 19040

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Feb 28 – Mar 14
SpinachSow outdoors · Feb 28 – Mar 21
Broccoli, cabbageStart indoors · Jan 31 – Feb 14
Broccoli, cabbageTransplant · Mar 21 – Apr 4
Onion setsPlant outdoors · Mar 14 – Mar 28
PotatoesPlant outdoors · Mar 21 – Apr 4
LettuceSow outdoors · Mar 14 – Mar 28
Carrots, beetsSow outdoors · Mar 21 – Apr 4
TomatoesStart indoors · Feb 14 – Feb 28
TomatoesTransplant · Apr 18 – May 2
Peppers, eggplantStart indoors · Jan 31 – Feb 14
Peppers, eggplantTransplant · Apr 25 – May 9
BeansSow outdoors · Apr 18 – May 2
Sweet cornSow outdoors · Apr 18 – May 2
Cucumbers, squashSow outdoors · Apr 18 – May 2
Fall lettuce, spinachSow outdoors · Sep 6 – Sep 20
GarlicPlant cloves · Oct 18 – Nov 22
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 11) and first fall frost (Nov 1) 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 19040 came on Mar 22 — about the same time as the 1991–2020 average (Mar 23).

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 Hatboro, PA

The soil mapped at the center of ZIP 19040 is Udorthents — extremely channery silt loam, well drained. Much of the area is built over (urban land); this is the natural soil underneath.

TextureExtremely channery silt loama good balance for most vegetables
pH4.6strongly acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter0.1%low — add compost
Hydrologic groupCwater soaks in slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Urban land, 0 to 8 percent slopes.

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 19040; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Hatboro, PA

Summer high85 °Faverage high, July
Winter low24 °Faverage low, January
Hot days22days a year at 90 °F or more
Freezing nights92nights a year at 32 °F or less
Growing degree days3,507base 50 °F — the season’s usable heat
Longest day15 h 02 mindaylight on June 21
Shortest day9 h 18 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation48.6 inper year, rain and melted snow

Average high and low, by month

10°20°30°40°50°60°70°80°90°100°32 °FJanuary: average high 40 °F, low 24 °F 40°24° JanFebruary: average high 43 °F, low 26 °F 43°26° FebMarch: average high 51 °F, low 32 °F 51°32° MarApril: average high 63 °F, low 42 °F 63°42° AprMay: average high 72 °F, low 52 °F 72°52° MayJune: average high 81 °F, low 61 °F 81°61° JunJuly: average high 85 °F, low 67 °F 85°67° JulAugust: average high 83 °F, low 65 °F 83°65° AugSeptember: average high 76 °F, low 58 °F 76°58° SepOctober: average high 64 °F, low 47 °F 64°47° OctNovember: average high 54 °F, low 37 °F 54°37° NovDecember: average high 44 °F, low 30 °F 44°30° Dec

Precipitation by month inches

0″1″2″3″4″5″January: 3.57 in precipitation 3.6 JanFebruary: 2.80 in precipitation 2.8 FebMarch: 4.38 in precipitation 4.4 MarApril: 3.79 in precipitation 3.8 AprMay: 3.96 in precipitation 4.0 MayJune: 4.14 in precipitation 4.1 JunJuly: 4.70 in precipitation 4.7 JulAugust: 4.68 in precipitation 4.7 AugSeptember: 4.70 in precipitation 4.7 SepOctober: 4.13 in precipitation 4.1 OctNovember: 3.34 in precipitation 3.3 NovDecember: 4.42 in precipitation 4.4 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Willow Grove NAS, PA (2 mi away); precipitation: Fort Washington 0.8 Nw, PA (6 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

190907b
Willow Grove, PA · 2 mi
190447a
Horsham, PA · 3 mi
189747a
Warminster, PA · 3 mi
190097b
Bryn Athyn, PA · 4 mi
190017b
Abington, PA · 4 mi
190257b
Dresher, PA · 4 mi
190067b
Huntingdon Valley, PA · 4 mi
189667a
Southampton, PA · 5 mi

Pennsylvania planting zones →

Questions about 19040

What planting zone is ZIP code 19040?

ZIP code 19040 (Hatboro, PA) is in USDA hardiness zone 7a on the 2023 map: the coldest night of an average winter reaches 0 to 5 °F (−17.8 to −15 °C).

When is the last frost in Hatboro, PA?

The median last spring frost (32 °F) near 19040 is April 11; after April 27 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Willow Grove NAS station.

When is the first frost in Hatboro, PA?

The median first fall frost near 19040 is November 1, giving a median frost-free growing season of 205 days.

When should I plant tomatoes in 19040?

Start tomato seeds indoors around Feb 14 – Feb 28 and set transplants outside around Apr 18 – May 2, one to three weeks after the median last frost.

How much rain and snow does 19040 get?

About 48.6 inches of precipitation a year (NOAA 1991–2020 normals, Fort Washington 0.8 Nw station).

How hot do summers get in Hatboro, PA?

The average high peaks at 85 °F in July, with about 22 days a year at 90 °F or more.

What kind of soil does 19040 have?

The USDA soil survey maps Udorthents at the center of ZIP 19040: extremely channery silt loam, well drained, pH about 4.6 (strongly acidic).

Did spring come early in Hatboro, PA in 2026?

Spring leaf-out near 19040 came on Mar 22 in 2026, about the same as the 1991–2020 average (Mar 23), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Hatboro, PA?

Long-day onions: the longest day near 19040 is 15 h 02 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).