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

Planting zone for 45773 — Reno, OH

ZIP code 45773 (Reno, Washington County) is in USDA zone 6b: the coldest winter night averages −5 to 0 °F. The median last spring frost is April 23 and the first fall frost October 26.

Where ZIP 45773 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.

Zone6b−5 to 0 °F
Coldest night−20.6 to −17.8 °C
Last frostApr 23
First frostOct 26
2012 zone6a

Was 6a 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 6b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Reno, 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 Reno, OH

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 23median — 50% chance of a later frost
Safe for tender plantsMay 10only 10% chance of frost after
First fall frostOctober 26median — 10% chance by Oct 12
Growing season185 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 10 and returns around November 3.

From the NOAA station Newport, OH — 4 miles away, elevation 676 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 45773

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 12 – Mar 26
SpinachSow outdoors · Mar 12 – Apr 2
Broccoli, cabbageStart indoors · Feb 12 – Feb 26
Broccoli, cabbageTransplant · Apr 2 – Apr 16
Onion setsPlant outdoors · Mar 26 – Apr 9
PotatoesPlant outdoors · Apr 2 – Apr 16
LettuceSow outdoors · Mar 26 – Apr 9
Carrots, beetsSow outdoors · Apr 2 – Apr 16
TomatoesStart indoors · Feb 26 – Mar 12
TomatoesTransplant · Apr 30 – May 14
Peppers, eggplantStart indoors · Feb 12 – Feb 26
Peppers, eggplantTransplant · May 7 – May 21
BeansSow outdoors · Apr 30 – May 14
Sweet cornSow outdoors · Apr 30 – May 14
Cucumbers, squashSow outdoors · Apr 30 – May 14
Fall lettuce, spinachSow outdoors · Aug 31 – Sep 14
GarlicPlant cloves · Oct 12 – Nov 16
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 23) and first fall frost (Oct 26) 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 45773 came on Mar 9 — 10 days earlier than the 1991–2020 average (Mar 19).

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 Reno, OH

The soil mapped at the center of ZIP 45773 is Gilpin — slightly decomposed plant material, well drained.

TextureSlightly decomposed plant materialtop layer
pH4.3strongly acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter69%high
Hydrologic groupCwater soaks in slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Gilpin-Summitville-Upshur complex, 25 to 35 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 45773; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Reno, OH

Summer high84 °Faverage high, July
Winter low22 °Faverage low, January
Hot days15days a year at 90 °F or more
Freezing nights119nights a year at 32 °F or less
Growing degree days3,408base 50 °F — the season’s usable heat
Longest day14 h 57 mindaylight on June 21
Shortest day9 h 23 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation45.4 inper year, rain and melted snow
Snowfall24 inper year; 25 days with snow on the ground

Average high and low, by month

10°20°30°40°50°60°70°80°90°32 °FJanuary: average high 39 °F, low 22 °F 39°22° JanFebruary: average high 43 °F, low 23 °F 43°23° FebMarch: average high 53 °F, low 30 °F 53°30° MarApril: average high 66 °F, low 40 °F 66°40° AprMay: average high 74 °F, low 50 °F 74°50° MayJune: average high 81 °F, low 59 °F 81°59° JunJuly: average high 84 °F, low 64 °F 84°64° JulAugust: average high 84 °F, low 62 °F 84°62° AugSeptember: average high 78 °F, low 55 °F 78°55° SepOctober: average high 67 °F, low 43 °F 67°43° OctNovember: average high 54 °F, low 33 °F 54°33° NovDecember: average high 44 °F, low 27 °F 44°27° Dec

Precipitation by month inches · ❄ = snowfall

0″1″2″3″4″5″January: 3.50 in precipitation, 8.9 in snowfall 3.5❄9 JanFebruary: 3.21 in precipitation, 7 in snowfall 3.2❄7 FebMarch: 3.97 in precipitation, 3.9 in snowfall 4.0❄4 MarApril: 3.70 in precipitation, 0.1 in snowfall 3.7 AprMay: 4.67 in precipitation 4.7 MayJune: 4.69 in precipitation 4.7 JunJuly: 4.86 in precipitation 4.9 JulAugust: 4.18 in precipitation 4.2 AugSeptember: 3.30 in precipitation 3.3 SepOctober: 2.89 in precipitation 2.9 OctNovember: 2.85 in precipitation, 0.3 in snowfall 2.9 NovDecember: 3.58 in precipitation, 3.6 in snowfall 3.6❄4 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Newport, OH (4 mi away); precipitation: Newport, OH (4 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 6b.

457686b
Newport, OH · 2 mi
261346b
Belmont, WV · 4 mi
261706b
Saint Marys, WV · 7 mi
457886b
Whipple, OH · 8 mi
457896b
Wingett Run, OH · 8 mi
457506b
Marietta, OH · 9 mi
457676b
New Matamoras, OH · 10 mi
261876b
Williamstown, WV · 11 mi

Ohio planting zones →

Questions about 45773

What planting zone is ZIP code 45773?

ZIP code 45773 (Reno, OH) is in USDA hardiness zone 6b on the 2023 map: the coldest night of an average winter reaches −5 to 0 °F (−20.6 to −17.8 °C).

When is the last frost in Reno, OH?

The median last spring frost (32 °F) near 45773 is April 23; after May 10 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Newport station.

When is the first frost in Reno, OH?

The median first fall frost near 45773 is October 26, giving a median frost-free growing season of 185 days.

When should I plant tomatoes in 45773?

Start tomato seeds indoors around Feb 26 – Mar 12 and set transplants outside around Apr 30 – May 14, one to three weeks after the median last frost.

How much rain and snow does 45773 get?

About 45.4 inches of precipitation a year and 24 inches of snowfall (NOAA 1991–2020 normals, Newport station).

How hot do summers get in Reno, OH?

The average high peaks at 84 °F in July, with about 15 days a year at 90 °F or more.

What kind of soil does 45773 have?

The USDA soil survey maps Gilpin at the center of ZIP 45773: slightly decomposed plant material, well drained, pH about 4.3 (strongly acidic).

Did spring come early in Reno, OH in 2026?

Spring leaf-out near 45773 came on Mar 9 in 2026, 10 days earlier than the 1991–2020 average (Mar 19), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Reno, OH?

Intermediate onions: the longest day near 45773 is 14 h 57 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 45773 change?

Yes. The 2012 USDA map put 45773 in zone 6a; the 2023 map puts it in zone 6b. The newer map uses 1991–2020 data and more weather stations.