Local alpaca guide · Colorado

Raising Alpacas in Fremont County, Colorado

Fremont County, Colorado has a cold semi-arid climate (Köppen BSk): summer highs average 82°F in July and winter lows average 14°F in January, with about 14 inches of precipitation a year. The main challenges for alpaca keepers here are hard winters and dry climate.

Climate snapshot for alpacas

90/100Alpaca climate comfort score
82°FAverage high, Jul
14°FAverage low, Jan
~5Days above 90°F (32°C) per year
~190Frost nights per year
14 inAnnual precipitation
2Barber pole worm months
16Hay bales / alpaca / year

Main challenges

  • Hard winters — average lows under 15 °F in Dec–Jan
  • Dry climate — only 14 in of rain — irrigated pasture or year-round hay

Advantages

  • Summers rarely reach heat-stress levels for alpacas
  • Short or no barber pole worm transmission season
  • Low meningeal worm risk

Overall rating: 90/100 — 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: 0.5 inJanFeb: 0.6 inFebMar: 1.0 inMarApr: 1.4 inAprMay: 1.5 inMayJun: 1.1 inJunJul: 2.3 inJulAug: 2.1 inAugSep: 1.3 inSepOct: 0.9 inOctNov: 0.6 inNovDec: 0.5 inDecJan high: 41°FFeb high: 43°FMar high: 51°FApr high: 57°FMay high: 67°FJun high: 78°FJul high: 82°FAug high: 79°FSep high: 73°FOct high: 62°FNov high: 50°FDec high: 41°FJan low: 14°FFeb low: 16°FMar low: 23°FApr low: 29°FMay low: 38°FJun low: 46°FJul low: 52°FAug low: 50°FSep low: 43°FOct low: 32°FNov low: 22°FDec low: 14°F°Fin
MonthHighLowPrecip.Heat-stress indexNotes
Jan41°F14°F0.5 in115 · okfrost
Feb43°F16°F0.6 in112 · okfrost
Mar51°F23°F1.0 in122 · okfrost
Apr57°F29°F1.4 in115 · okfrost
May67°F38°F1.5 in120 · okgrass
Jun78°F46°F1.1 in122 · cautiongrass
Jul82°F52°F2.3 in130 · cautionworms, grass
Aug79°F50°F2.1 in133 · cautionworms, grass
Sep73°F43°F1.3 in126 · okgrass
Oct62°F32°F0.9 in113 · okgrass, frost
Nov50°F22°F0.6 in119 · okfrost
Dec41°F14°F0.5 in109 · 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 Fremont County, Colorado

January 41° / 14°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).
  • Toenail check and trim.

February 43° / 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 51° / 23°F

Frost
  • Freezing nights: keep water open and feed extra hay during cold snaps.
  • Toenail check and trim.

April 57° / 29°F

Frost
  • Book your shearer now — spring calendars fill up fast.
  • 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 67° / 38°F

Cria season
  • 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 78° / 46°F

ShearingCria seasonBreeding
  • Shearing month: shear the whole herd, and trim toenails, check teeth and body condition while animals are restrained.
  • Warm spells possible — watch for open-mouth breathing in heavy-fleeced or dark animals.
  • Run pre-season fecal egg counts so you know each animal's baseline.
  • 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 82° / 52°F

Worm seasonCria seasonBreeding
  • Warm spells possible — watch for open-mouth breathing in heavy-fleeced or dark animals.
  • 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).
  • Toenail check and trim.

August 79° / 50°F

Worm seasonCria seasonBreeding
  • Warm spells possible — watch for open-mouth breathing in heavy-fleeced or dark animals.
  • 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).

September 73° / 43°F

Breeding
  • Breeding window for next year's crias (rebreed females 2–4 weeks after birthing).
  • 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 62° / 32°F

Frost
  • 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.

November 50° / 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 41° / 14°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: June.
  • Best months for crias to be born: May–Aug (breed in Jun–Sep).
  • Heat precautions: rarely needed — still provide shade and water.
  • Barber pole worm season: Jul–Aug — run fecal egg counts every 4–6 weeks in these months.
  • Freezing nights: Oct–Apr — keep water from freezing.
  • Vitamin D for crias: Nov–Feb.
  • Grazing season: May–Oct (about 6 months); feed hay the rest of the year.
  • Meningeal worm: Meningeal worm is uncommon this far west but cases occur near the edge of its range.
  • 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

Places mapped on OpenStreetMap with “alpaca” in their name, within about 80 km (50 miles). Contact them before visiting — opening times change.

NameTypeDistanceWebsite
Hallmark Ranch Alpacas · Salidafarm33 miVisit

Data © OpenStreetMap contributors. Know a farm that's missing? Add it to OpenStreetMap and it will appear here in the next update.

Frequently asked questions

Can you raise alpacas in Fremont County, Colorado?
Yes. Alpacas are kept successfully in most climates with good management. Fremont County, Colorado scores 90/100 (excellent) on our alpaca climate comfort scale; the key issues are hard winters and dry climate.
When should alpacas be shorn in Fremont County, Colorado?
Plan shearing for June, 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 Fremont County, Colorado?
Mild months suit newborn crias best — here that is May–Aug. For births then, breed females in Jun–Sep (gestation is about 335 days).
How much hay does an alpaca need per year in Fremont County, Colorado?
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.

Nearby counties

Coordinates 38.455, -105.425 · land area 1,534 sq mi. Long-term averages, not forecasts. See methodology and data sources. Back to Colorado.