Climate snapshot for alpacas
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
| Month | High | Low | Precip. | Heat-stress index | Notes |
|---|---|---|---|---|---|
| Jan | 41°F | 14°F | 0.5 in | 115 · ok | frost |
| Feb | 43°F | 16°F | 0.6 in | 112 · ok | frost |
| Mar | 51°F | 23°F | 1.0 in | 122 · ok | frost |
| Apr | 57°F | 29°F | 1.4 in | 115 · ok | frost |
| May | 67°F | 38°F | 1.5 in | 120 · ok | grass |
| Jun | 78°F | 46°F | 1.1 in | 122 · caution | grass |
| Jul | 82°F | 52°F | 2.3 in | 130 · caution | worms, grass |
| Aug | 79°F | 50°F | 2.1 in | 133 · caution | worms, grass |
| Sep | 73°F | 43°F | 1.3 in | 126 · ok | grass |
| Oct | 62°F | 32°F | 0.9 in | 113 · ok | grass, frost |
| Nov | 50°F | 22°F | 0.6 in | 119 · ok | frost |
| Dec | 41°F | 14°F | 0.5 in | 109 · ok | frost |
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 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
- 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
- Freezing nights: keep water open and feed extra hay during cold snaps.
- Toenail check and trim.
April 57° / 29°F
- 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: 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
- 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
- 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
- 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 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
- 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
- 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 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.
| Name | Type | Distance | Website |
|---|---|---|---|
| Hallmark Ranch Alpacas · Salida | farm | 33 mi | Visit |
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?
When should alpacas be shorn in Fremont County, Colorado?
What is the best time for crias to be born in Fremont County, Colorado?
How much hay does an alpaca need per year in Fremont County, Colorado?
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.