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

Planting zone for 44045 — Grand River, OH

ZIP code 44045 (Grand River, Lake County) is in USDA zone 7a: the coldest winter night averages 0 to 5 °F. The median last spring frost is April 15 and the first fall frost November 9.

Where ZIP 44045 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 15
First frostNov 9
2012 zone6b

Was 6b on the 2012 map — half a zone warmer now. 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 Grand River, OH…

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 Grand River, OH

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 15median — 50% chance of a later frost
Safe for tender plantsApril 27only 10% chance of frost after
First fall frostNovember 9median — 10% chance by Oct 30
Growing season209 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 4 and returns around November 21.

From the NOAA station Painesville 4 Nw, OH — within 1 mile, elevation 600 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 44045

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 4 – Mar 18
SpinachSow outdoors · Mar 4 – Mar 25
Broccoli, cabbageStart indoors · Feb 4 – Feb 18
Broccoli, cabbageTransplant · Mar 25 – Apr 8
Onion setsPlant outdoors · Mar 18 – Apr 1
PotatoesPlant outdoors · Mar 25 – Apr 8
LettuceSow outdoors · Mar 18 – Apr 1
Carrots, beetsSow outdoors · Mar 25 – Apr 8
TomatoesStart indoors · Feb 18 – Mar 4
TomatoesTransplant · Apr 22 – May 6
Peppers, eggplantStart indoors · Feb 4 – Feb 18
Peppers, eggplantTransplant · Apr 29 – May 13
BeansSow outdoors · Apr 22 – May 6
Sweet cornSow outdoors · Apr 22 – May 6
Cucumbers, squashSow outdoors · Apr 22 – May 6
Fall lettuce, spinachSow outdoors · Sep 14 – Sep 28
GarlicPlant cloves · Oct 26 – Nov 30
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 15) and first fall frost (Nov 9) 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 44045 came on Mar 22 — 11 days earlier than the 1991–2020 average (Apr 2).

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 Grand River, OH

The soil mapped at the center of ZIP 44045 is Carlisle — muck, very poorly drained.

TextureMucktop layer
DrainageVery poorly drainedconsider raised beds
Organic matter84.5%high
Hydrologic groupA/Ddrains fast once dried out; wet otherwise
Farmland classNot prime farmlandUSDA classification

Map unit: Carlisle muck.

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 44045; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Grand River, OH

Summer high82 °Faverage high, July
Winter low24 °Faverage low, January
Hot days5days a year at 90 °F or more
Freezing nights100nights a year at 32 °F or less
Growing degree days3,393base 50 °F — the season’s usable heat
Longest day15 h 13 mindaylight on June 21
Shortest day9 h 08 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation40.5 inper year, rain and melted snow

Average high and low, by month

10°20°30°40°50°60°70°80°90°32 °FJanuary: average high 37 °F, low 24 °F 37°24° JanFebruary: average high 39 °F, low 24 °F 39°24° FebMarch: average high 46 °F, low 30 °F 46°30° MarApril: average high 58 °F, low 40 °F 58°40° AprMay: average high 69 °F, low 51 °F 69°51° MayJune: average high 78 °F, low 62 °F 78°62° JunJuly: average high 82 °F, low 67 °F 82°67° JulAugust: average high 82 °F, low 66 °F 82°66° AugSeptember: average high 76 °F, low 59 °F 76°59° SepOctober: average high 65 °F, low 49 °F 65°49° OctNovember: average high 53 °F, low 39 °F 53°39° NovDecember: average high 42 °F, low 30 °F 42°30° Dec

Precipitation by month inches

0″1″2″3″4″5″January: 3.14 in precipitation 3.1 JanFebruary: 2.15 in precipitation 2.1 FebMarch: 2.83 in precipitation 2.8 MarApril: 3.47 in precipitation 3.5 AprMay: 3.42 in precipitation 3.4 MayJune: 3.63 in precipitation 3.6 JunJuly: 4.12 in precipitation 4.1 JulAugust: 3.44 in precipitation 3.4 AugSeptember: 3.91 in precipitation 3.9 SepOctober: 4.04 in precipitation 4.0 OctNovember: 3.17 in precipitation 3.2 NovDecember: 3.14 in precipitation 3.1 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Painesville 4 Nw, OH (within 1 mile); precipitation: Painesville 4 Nw, OH (within 1 mile). 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.

440776b
Painesville, OH · 5 mi
440607a
Mentor, OH · 5 mi
440617a
Mentor, OH · 6 mi
440816b
Perry, OH · 8 mi
440967a
Willoughby, OH · 9 mi
440957a
Eastlake, OH · 10 mi
440946b
Willoughby, OH · 10 mi
440977a
Eastlake, OH · 11 mi

Ohio planting zones →

Questions about 44045

What planting zone is ZIP code 44045?

ZIP code 44045 (Grand River, OH) 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 Grand River, OH?

The median last spring frost (32 °F) near 44045 is April 15; after April 27 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Painesville 4 Nw station.

When is the first frost in Grand River, OH?

The median first fall frost near 44045 is November 9, giving a median frost-free growing season of 209 days.

When should I plant tomatoes in 44045?

Start tomato seeds indoors around Feb 18 – Mar 4 and set transplants outside around Apr 22 – May 6, one to three weeks after the median last frost.

How much rain and snow does 44045 get?

About 40.5 inches of precipitation a year (NOAA 1991–2020 normals, Painesville 4 Nw station).

How hot do summers get in Grand River, OH?

The average high peaks at 82 °F in July, with about 5 days a year at 90 °F or more.

What kind of soil does 44045 have?

The USDA soil survey maps Carlisle at the center of ZIP 44045: muck, very poorly drained.

Did spring come early in Grand River, OH in 2026?

Spring leaf-out near 44045 came on Mar 22 in 2026, 11 days earlier than the 1991–2020 average (Apr 2), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Grand River, OH?

Long-day onions: the longest day near 44045 is 15 h 13 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).

Did the zone for 44045 change?

Yes. The 2012 USDA map put 44045 in zone 6b; the 2023 map puts it in zone 7a. The newer map uses 1991–2020 data and more weather stations.