Allenspark, Colorado climate: Normal weather by month, frost dates and records
Allenspark's normal year runs from 14°F January nights to 74°F July afternoons. (NOAA 1991-2020 normals)
In metric: a yearly mean of 4.2°C, January lows of −10°C, July highs of 24°C.
- NOAA stationAllenspark (3 mi NW)
- Station IDUSC00050185
- Location40.23°N 105.52°W
- Elevation8,500 ft (2,591 m)
- Population (census place)826
On October 23, the normal high in Allenspark is 49°F and the normal low 27°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Allenspark.
- Jan 32° 14°
- Feb 35° 15°
- Mar 42° 20°
- Apr 46° 23°
- May 56° 32°
- Jun 69° 38°
- Jul 74° 44°
- Aug 73° 43°
- Sep 66° 37°
- Oct 52° 29°
- Nov 41° 20°
- Dec 33° 14°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Allenspark each month?
July is the warmest month, with normal highs of 74°F; January the coldest, with normal lows of 14°F.
| Month | High | Low | Mean | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|
| January | 32°F | 14°F | 23.2°F | – | <1 | 30 | 9 h 40 min |
| February | 35°F | 15°F | 24.6°F | – | <1 | 27 | 10 h 40 min |
| March | 42°F | 20°F | 31.0°F | – | <1 | 29 | 11 h 50 min |
| April | 46°F | 23°F | 34.4°F | – | <1 | 27 | 13 h 10 min |
| May | 56°F | 32°F | 44.1°F | – | <1 | 18 | 14 h 20 min |
| June | 69°F | 38°F | 53.3°F | – | <1 | 6 | 15 h |
| July | 74°F | 44°F | 59.3°F | – | <1 | <1 | 14 h 50 min |
| August | 73°F | 43°F | 57.7°F | – | <1 | <1 | 13 h 50 min |
| September | 66°F | 37°F | 51.1°F | – | <1 | 8 | 12 h 30 min |
| October | 52°F | 29°F | 40.6°F | – | <1 | 22 | 11 h 10 min |
| November | 41°F | 20°F | 30.5°F | – | <1 | 28 | 10 h |
| December | 33°F | 14°F | 23.8°F | – | <1 | 30 | 9 h 20 min |
| Year (annual) | 52°F | 27°F | 39.5°F | – | <1 | 225 |
The same normals in °C and millimetres
| Month | High | Low | Mean |
|---|---|---|---|
| January | 0°C | −10°C | −4.9°C |
| February | 1°C | −10°C | −4.1°C |
| March | 5°C | −6°C | −0.6°C |
| April | 8°C | −5°C | 1.3°C |
| May | 13°C | 0°C | 6.7°C |
| June | 20°C | 3°C | 11.8°C |
| July | 24°C | 7°C | 15.2°C |
| August | 23°C | 6°C | 14.3°C |
| September | 19°C | 3°C | 10.6°C |
| October | 11°C | −2°C | 4.8°C |
| November | 5°C | −6°C | −0.8°C |
| December | 1°C | −10°C | −4.6°C |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Estes Park (8 miles away), gets 104 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00050185; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Allenspark?
Normal highs sit between 65°F and 85°F in June, July, August and September.
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00050185.
When is the last frost in Allenspark?
In Allenspark, the last spring frost (32°F) comes after June 14 in half of years and after June 28 in one year in ten; the first autumn frost comes before September 12 in half of years and before August 25 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- June 141 year in 10 after June 28; 9 in 10 after May 24
- First autumn frost, half of years before
- September 121 year in 10 before August 25; 9 in 10 before September 25
NOAA puts the median frost-free season at 92 days, and the season without a hard freeze (28°F) at 120 days.
A hard freeze (28°F) comes after May 27 in half of springs and before September 25 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Allenspark in zone 5b in ZIP code 80510.
Frost dates for every NOAA station in Colorado · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00050185; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Allenspark?
In a normal year in Allenspark, a 90°F day is rare and 225 nights fall to 32°F or colder.
- Days at 90°F or more
- fewer than 1a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 225a normal year
- Days that stay below freezing
- 57high of 32°F or less
Source: NOAA NCEI 1991-2020 annual normals, station USC00050185.
How sunny is Allenspark?
Over a year 76% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Allenspark, 4.6 kWh per square metre a day. September is the sunniest month (80%) and May the cloudiest (69%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 79% | 2.5 |
| February | 79% | 3.5 |
| March | 77% | 4.7 |
| April | 71% | 5.4 |
| May | 69% | 6.0 |
| June | 78% | 7.0 |
| July | 77% | 6.6 |
| August | 76% | 5.8 |
| September | 80% | 5.0 |
| October | 77% | 3.7 |
| November | 76% | 2.6 |
| December | 76% | 2.1 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Allenspark need?
A normal year in Allenspark brings 9,306 heating degree days, 73% more than the median U.S. place (5,373), and 16 cooling degree days, 98% fewer than the median (908). Ten months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 831 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,297 | 0 |
| February | 1,131 | 0 |
| March | 1,054 | 0 |
| April | 916 | 0 |
| May | 648 | 0 |
| June | 350 | 0 |
| July | 187 | 10 |
| August | 231 | 5 |
| September | 417 | 0 |
| October | 758 | 0 |
| November | 1,037 | 0 |
| December | 1,279 | 0 |
| Year (annual) | 9,306 | 16 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00050185. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
How does Allenspark's climate compare?
Allenspark is warmer than 14 of the other 124 places with their own NOAA record in Colorado. Across the 7,247 U.S. stations with normals, its annual mean of 39.5°F is warmer than 5%.
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers.
Which places near Allenspark share this climate record?
4 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Jamestown, CO246 people · 10 mi SE
- Ward, CO127 people · 11 mi S
- Bark Ranch, CO117 people · 9 mi SE
- Hidden Lake, CO30 people · 9 mi S
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Allenspark's climate
What is the coldest month in Allenspark?
January, with a normal high of 32°F and a normal low of 14°F. The warmest is July (74°F by day, 44°F at night).
Does it snow in Allenspark?
Yes. NOAA publishes no 1991-2020 snowfall normal for Allenspark's NOAA station; the nearest record that keeps one, Estes Park (8 miles away), records 104 inches of snow in a normal year.
What plant hardiness zone is Allenspark in?
The USDA's 2023 map puts Allenspark in zone 5b in ZIP code 80510.
How late can frost come in Allenspark?
In half of years the last 32°F night comes after June 14; in one year in ten it comes after June 28. Waiting until June 28 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Colorado climateThe statewide normals and every place in the state
- Estes Park, CO8 miles from this station, 43.0°F a year
- Grand Lake, CO17 miles from this station, 36.9°F a year
- Boulder, CO21 miles from this station, 51.5°F a year
- Waterdale, CO21 miles from this station, 48.2°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made