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

Planting zone for 74445 — Morris, OK

ZIP code 74445 (Morris, Okmulgee County) is in USDA zone 7b: the coldest winter night averages 5 to 10 °F. The median last spring frost is April 8 and the first fall frost October 28.

Where ZIP 74445 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.

Zone7b5 to 10 °F
Coldest night−15 to −12.2 °C
Last frostApr 8
First frostOct 28
2012 zone7a

Was 7a 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 7b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Morris, OK…

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 Morris, OK

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 8median — 50% chance of a later frost
Safe for tender plantsApril 25only 10% chance of frost after
First fall frostOctober 28median — 10% chance by Oct 12
Growing season203 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 29 and returns around November 6.

From the NOAA station Okmulgee Wtr Wks, OK — 11 miles away, elevation 646 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 74445

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Feb 25 – Mar 11
SpinachSow outdoors · Feb 25 – Mar 18
Broccoli, cabbageStart indoors · Jan 28 – Feb 11
Broccoli, cabbageTransplant · Mar 18 – Apr 1
Onion setsPlant outdoors · Mar 11 – Mar 25
PotatoesPlant outdoors · Mar 18 – Apr 1
LettuceSow outdoors · Mar 11 – Mar 25
Carrots, beetsSow outdoors · Mar 18 – Apr 1
TomatoesStart indoors · Feb 11 – Feb 25
TomatoesTransplant · Apr 15 – Apr 29
Peppers, eggplantStart indoors · Jan 28 – Feb 11
Peppers, eggplantTransplant · Apr 22 – May 6
BeansSow outdoors · Apr 15 – Apr 29
Sweet cornSow outdoors · Apr 15 – Apr 29
Cucumbers, squashSow outdoors · Apr 15 – Apr 29
Fall lettuce, spinachSow outdoors · Sep 2 – Sep 16
GarlicPlant cloves · Oct 14 – Nov 18
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 8) and first fall frost (Oct 28) 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 74445 came on Feb 12 — 10 days earlier than the 1991–2020 average (Feb 22).

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 Morris, OK

The soil mapped at the center of ZIP 74445 is Taloka — silt loam, somewhat poorly drained.

TextureSilt loama good balance for most vegetables
pH6.1slightly acidic; most vegetables like 6.0–7.0
DrainageSomewhat poorly drainedconsider raised beds
Organic matter2%moderate
Hydrologic groupDwater soaks in very slowly
Farmland classprime farmlandUSDA classification

Map unit: Taloka silt loam, 1 to 3 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 74445; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Morris, OK

Summer high93 °Faverage high, July
Winter low26 °Faverage low, January
Hot days67days a year at 90 °F or more
Freezing nights87nights a year at 32 °F or less
Growing degree days4,917base 50 °F — the season’s usable heat
Longest day14 h 34 mindaylight on June 21
Shortest day9 h 45 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation47.3 inper year, rain and melted snow
Snowfall1 inper year

Average high and low, by month

20°30°40°50°60°70°80°90°100°32 °FJanuary: average high 50 °F, low 26 °F 50°26° JanFebruary: average high 55 °F, low 29 °F 55°29° FebMarch: average high 64 °F, low 39 °F 64°39° MarApril: average high 72 °F, low 47 °F 72°47° AprMay: average high 79 °F, low 57 °F 79°57° MayJune: average high 87 °F, low 66 °F 87°66° JunJuly: average high 93 °F, low 70 °F 93°70° JulAugust: average high 92 °F, low 68 °F 92°68° AugSeptember: average high 84 °F, low 60 °F 84°60° SepOctober: average high 75 °F, low 48 °F 75°48° OctNovember: average high 62 °F, low 37 °F 62°37° NovDecember: average high 53 °F, low 29 °F 53°29° Dec

Precipitation by month inches · ❄ = snowfall

0″2″4″6″January: 2.21 in precipitation, 0.2 in snowfall 2.2 JanFebruary: 1.93 in precipitation, 0.3 in snowfall 1.9 FebMarch: 3.53 in precipitation, 0.4 in snowfall 3.5 MarApril: 4.35 in precipitation 4.3 AprMay: 6.79 in precipitation 6.8 MayJune: 4.99 in precipitation 5.0 JunJuly: 3.93 in precipitation 3.9 JulAugust: 4.29 in precipitation 4.3 AugSeptember: 4.90 in precipitation 4.9 SepOctober: 4.33 in precipitation 4.3 OctNovember: 3.30 in precipitation 3.3 NovDecember: 2.78 in precipitation 2.8 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Okmulgee Wtr Wks, OK (11 mi away); precipitation: Dewar 2 Ne, OK (13 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 7b.

744227b
Boynton, OK · 8 mi
744387b
Hitchita, OK · 9 mi
744477b
Okmulgee, OK · 10 mi
744567b
Preston, OK · 11 mi
744607b
Schulter, OK · 12 mi
744287b
Council Hill, OK · 12 mi
744687b
Wainwright, OK · 13 mi
744317b
Dewar, OK · 14 mi

Oklahoma planting zones →

Questions about 74445

What planting zone is ZIP code 74445?

ZIP code 74445 (Morris, OK) is in USDA hardiness zone 7b on the 2023 map: the coldest night of an average winter reaches 5 to 10 °F (−15 to −12.2 °C).

When is the last frost in Morris, OK?

The median last spring frost (32 °F) near 74445 is April 8; after April 25 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Okmulgee Wtr Wks station.

When is the first frost in Morris, OK?

The median first fall frost near 74445 is October 28, giving a median frost-free growing season of 203 days.

When should I plant tomatoes in 74445?

Start tomato seeds indoors around Feb 11 – Feb 25 and set transplants outside around Apr 15 – Apr 29, one to three weeks after the median last frost.

How much rain and snow does 74445 get?

About 47.3 inches of precipitation a year and 1 inches of snowfall (NOAA 1991–2020 normals, Dewar 2 Ne station).

How hot do summers get in Morris, OK?

The average high peaks at 93 °F in July, with about 67 days a year at 90 °F or more.

What kind of soil does 74445 have?

The USDA soil survey maps Taloka at the center of ZIP 74445: silt loam, somewhat poorly drained, pH about 6.1 (slightly acidic).

Did spring come early in Morris, OK in 2026?

Spring leaf-out near 74445 came on Feb 12 in 2026, 10 days earlier than the 1991–2020 average (Feb 22), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Morris, OK?

Intermediate onions: the longest day near 74445 is 14 h 34 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 74445 change?

Yes. The 2012 USDA map put 74445 in zone 7a; the 2023 map puts it in zone 7b. The newer map uses 1991–2020 data and more weather stations.