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Planting zones · Logan, Utah

What Planting Zone Is Logan?

Logan is in USDA zone 6a. Cache Valley at about 4,800 ft, the coldest of the Utah cities here: about 19 in. of precipitation, 61 in. of snow, and January lows averaging about 18°F.

  • USDA zone (2023)6a
  • Coldest night (avg.)-10 to -5°FZIP 84321
  • Median last frostApr 3032°F
  • Median first frostOct 1632°F
  • Annual precipitation19 inches
  • Frost-free season166 days

Logan hardiness zone by ZIP code

On the 2023 USDA Plant Hardiness Zone Map, the ZIP codes we sampled in Logan fall in zone 6a; 84321 (zone 6a) has an average annual extreme minimum of -10 to -5°F. Choose perennials, shrubs, and trees rated at least to zone 6.

2023 USDA zone for sampled Logan ZIP codes
ZIPZoneAvg. coldest night
843216a-10 to -5°F
843416a-10 to -5°F

Not listed? Look up any ZIP code.

Frost dates and when to plant

The median last spring frost (32°F) at Logan (Utah State University) is Apr 30 and the median first fall frost is Oct 16, a typical frost-free season of about 166 days.

Plant container perennials and shrubs after the median last frost (Apr 30), or in early fall at least six weeks before the median first frost (Oct 16) so roots can settle in before the ground freezes.

Rainfall and heat in Logan

Average annual precipitation is 19 inches (Logan (Utah State University), 1991–2020), spread across the year with May the wettest month and July the driest.

The average high in July is about 88°F and the average low in January is about 18°F, measured at about 4,790 ft.

That is why a zone rating alone isn't enough for a xeriscape here: pick plants that are both cold-hardy to zone 6 and rated very low or low water once established.

Low-water plants for Logan

72 plants in our database are hardy to zone 6 and suited to zone 6. Here are 12, driest first, across plant types.

See all zone 6 plants

Frequently asked questions

What planting zone is Logan?

Logan, UT is in USDA hardiness zone 6a on the 2023 USDA Plant Hardiness Zone Map, based on the ZIP codes we sampled (84321: 6a, 84341: 6a). In 84321, the average coldest night of the year is -10 to -5°F.

When is the last frost in Logan?

The median last spring frost (32°F) at Logan (Utah State University) is Apr 30 and the median first fall frost is Oct 16, a typical frost-free season of about 166 days.

How much rain does Logan get?

Average annual precipitation is 19 inches (Logan (Utah State University), 1991–2020), spread across the year with May the wettest month and July the driest.

Sources

  1. NOAA NCEI U.S. Climate Normals 1991–2020, Logan (Utah State University) (USC00425186). ncei.noaa.gov
  2. USDA ARS 2023 Plant Hardiness Zone Map, by ZIP. planthardiness.ars.usda.gov