Local alpaca guide · Wyoming

Raising Alpacas in Goshen County, Wyoming

Goshen County, Wyoming has a cold semi-arid climate (Köppen BSk): summer highs average 88°F in July and winter lows average 15°F in December, with about 15 inches of precipitation a year. The main challenges for alpaca keepers here are summer heat, hard winters and dry climate.

Climate snapshot for alpacas

89/100Alpaca climate comfort score
88°FAverage high, Jul
15°FAverage low, Dec
~23Days above 90°F (32°C) per year
~185Frost nights per year
15 inAnnual precipitation
2Barber pole worm months
16Hay bales / alpaca / year

Main challenges

  • Summer heat — heat-stress precautions needed in Jul
  • Hard winters — average lows under 15 °F in Dec
  • Dry climate — only 15 in of rain — irrigated pasture or year-round hay

Advantages

  • Short or no barber pole worm transmission season
  • Low meningeal worm risk

Overall rating: 89/100 — Excellent on our alpaca climate comfort score. Climate type: Cold semi-arid (Köppen BSk).

Month-by-month climate

Average highAverage lowPrecipitation
10°0.030°1.050°2.070°3.090°4.0Jan: 0.3 inJanFeb: 0.5 inFebMar: 0.9 inMarApr: 1.8 inAprMay: 2.7 inMayJun: 2.2 inJunJul: 1.7 inJulAug: 1.3 inAugSep: 1.3 inSepOct: 1.2 inOctNov: 0.5 inNovDec: 0.4 inDecJan high: 40°FFeb high: 42°FMar high: 52°FApr high: 59°FMay high: 68°FJun high: 81°FJul high: 88°FAug high: 86°FSep high: 77°FOct high: 63°FNov high: 49°FDec high: 40°FJan low: 15°FFeb low: 16°FMar low: 24°FApr low: 30°FMay low: 40°FJun low: 49°FJul low: 56°FAug low: 53°FSep low: 44°FOct low: 31°FNov low: 22°FDec low: 15°F°Fin
MonthHighLowPrecip.Heat-stress indexNotes
Jan40°F15°F0.3 in113 · okfrost
Feb42°F16°F0.5 in109 · okfrost
Mar52°F24°F0.9 in114 · okfrost
Apr59°F30°F1.8 in113 · okfrost
May68°F40°F2.7 in118 · okworms, grass
Jun81°F49°F2.2 in114 · okworms, grass
Jul88°F56°F1.7 in117 · okgrass
Aug86°F53°F1.3 in123 · cautiongrass
Sep77°F44°F1.3 in108 · okgrass
Oct63°F31°F1.2 in103 · okgrass, frost
Nov49°F22°F0.5 in108 · okfrost
Dec40°F15°F0.4 in93 · okfrost

Heat-stress index = average high (°F) + mean humidity (%). “Worms” marks months that suit barber pole worm transmission; “grass” marks the grazing season; “frost” marks months with average lows below freezing. Source: NOAA nClimDiv 1991–2020 county normals.

Alpaca care calendar for Goshen County, Wyoming

January 40° / 15°F

FrostVitamin D
  • Freezing nights: keep water open and feed extra hay during cold snaps.
  • Vitamin D for crias and juveniles (ask your vet about product and dose).
  • Toenail check and trim.

February 42° / 16°F

FrostVitamin D
  • Freezing nights: keep water open and feed extra hay during cold snaps.
  • Vitamin D for crias and juveniles (ask your vet about product and dose).

March 52° / 24°F

FrostVitamin D
  • Book your shearer now — spring calendars fill up fast.
  • Freezing nights: keep water open and feed extra hay during cold snaps.
  • Vitamin D for crias and juveniles (ask your vet about product and dose).
  • Toenail check and trim.

April 59° / 30°F

Frost
  • Run pre-season fecal egg counts so you know each animal's baseline.
  • CDT boosters for females due next month; prepare a clean birthing paddock and birthing kit.
  • Freezing nights: keep water open and feed extra hay during cold snaps.

May 68° / 40°F

ShearingWorm seasonCria season
  • Shearing month: shear the whole herd, and trim toenails, check teeth and body condition while animals are restrained.
  • Barber pole worm season: fecal egg counts every 4–6 weeks, check eyelid color, pick up dung piles twice a week.
  • Cria season: check due dates daily, ensure crias nurse within 4 hours, dip navels and weigh crias daily for two weeks.
  • Spring grass: switch from hay to pasture gradually over 1–2 weeks and monitor body condition.
  • Toenail check and trim.

June 81° / 49°F

Worm seasonCria seasonBreeding
  • Barber pole worm season: fecal egg counts every 4–6 weeks, check eyelid color, pick up dung piles twice a week.
  • Cria season: check due dates daily, ensure crias nurse within 4 hours, dip navels and weigh crias daily for two weeks.
  • Breeding window for next year's crias (rebreed females 2–4 weeks after birthing).

July 88° / 56°F

HeatBreeding
  • Heat precautions: shade, airflow, cool fresh water and no handling in the heat of the day.
  • Breeding window for next year's crias (rebreed females 2–4 weeks after birthing).
  • Fly season: clean dung piles regularly and use traps around the barn.
  • Toenail check and trim.

August 86° / 53°F

  • Warm spells possible — watch for open-mouth breathing in heavy-fleeced or dark animals.
  • Fly season: clean dung piles regularly and use traps around the barn.

September 77° / 44°F

  • Winter prep: install water heaters, repair shelters and windbreaks, stock bedding.
  • Fly season: clean dung piles regularly and use traps around the barn.
  • Toenail check and trim.

October 63° / 31°F

FrostVitamin D
  • Secure winter hay: about 16 small square bales per alpaca per year here — test a sample before buying.
  • Freezing nights: keep water open and feed extra hay during cold snaps.
  • Vitamin D for crias and juveniles (ask your vet about product and dose).

November 49° / 22°F

FrostVitamin D
  • Freezing nights: keep water open and feed extra hay during cold snaps.
  • Vitamin D for crias and juveniles (ask your vet about product and dose).
  • Toenail check and trim.

December 40° / 15°F

Hard coldVitamin D
  • Hard cold: extra hay at night, heated water, windbreaks and coats for crias or seniors; check ears for frostbite.
  • Vitamin D for crias and juveniles (ask your vet about product and dose).

Key recommendations

  • Shearing: May.
  • Best months for crias to be born: May–Jun (breed in Jun–Jul).
  • Heat precautions: Jul.
  • Barber pole worm season: May–Jun — run fecal egg counts every 4–6 weeks in these months.
  • Freezing nights: Oct–Apr — keep water from freezing.
  • Vitamin D for crias: Oct–Mar.
  • Grazing season: May–Oct (about 6 months); feed hay the rest of the year.
  • Meningeal worm: Meningeal worm is not established in this region.
  • Selenium: Most forage here supplies adequate selenium, and some western areas have high-selenium plants — avoid stacking selenium supplements.

Tools: heat-stress calculator · winter hay calculator · due-date calculator · parasite control guide.

Alpaca farms & shops nearby

No alpaca farms near Goshen County, Wyoming are mapped on OpenStreetMap yet. If you keep alpacas here, consider adding your farm to OpenStreetMap — it will appear on this page after the next update.

Frequently asked questions

Can you raise alpacas in Goshen County, Wyoming?
Yes. Alpacas are kept successfully in most climates with good management. Goshen County, Wyoming scores 89/100 (excellent) on our alpaca climate comfort scale; the key issues are summer heat, hard winters and dry climate.
When should alpacas be shorn in Goshen County, Wyoming?
Plan shearing for May, once nights stay above about 38°F (3°C) but before summer heat builds.
What is the best time for crias to be born in Goshen County, Wyoming?
Mild months suit newborn crias best — here that is May–Jun. For births then, breed females in Jun–Jul (gestation is about 335 days).
How much hay does an alpaca need per year in Goshen County, Wyoming?
With roughly 6 months of little or no grazing, plan on about 766 lb (347 kg) — around 16 small square bales — per adult alpaca per year, plus waste.
How hot does it get for alpacas in Goshen County, Wyoming?
Heat-stress precautions are needed in Jul. We estimate about 23 days a year above 90°F (32°C).

Nearby counties

Coordinates 42.089, -104.354 · land area 2,226 sq mi. Long-term averages, not forecasts. See methodology and data sources. Back to Wyoming.