Allenspark weather by month
What a typical year looks like in Allenspark, Colorado: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Boulder 14 W, 22 km from Allenspark; records cover 2003–2026.
The year at a glance
- Precipitation a year
- 33.9 in860 mm
- Snow a year
- Rare
- Last spring freeze
- Jun 20
- First fall freeze
- Aug 19
- Heating degree days
- 10,825
- Cooling degree days
- 0
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −10°−23° (heating, 99%) and 75°24° (cooling, 1%).
Month by month
Allenspark in January
Highs average 29°−2° and lows 12°−11°, with 2.7 in68 mm of precipitation in a typical January.
- Record high
- 54°12° (2005)
- Record low
- −22°−30° (2017)
- Heating degree days
- 1389
- Cooling degree days
- 0
Allenspark in February
Highs average 28°−2° and lows 12°−11°, with 2.8 in70 mm of precipitation in a typical February.
- Record high
- 50°10° (2016)
- Record low
- −37°−38° (2011)
- Heating degree days
- 1270
- Cooling degree days
- 0
Allenspark in March
Highs average 36°2° and lows 17°−8°, with 3.7 in93 mm of precipitation in a typical March.
- Record high
- 65°18° (2026)
- Record low
- −10°−23° (2008)
- Heating degree days
- 1204
- Cooling degree days
- 0
Allenspark in April
Highs average 40°5° and lows 22°−6°, with 4.8 in123 mm of precipitation in a typical April.
- Record high
- 62°17° (2007)
- Record low
- −7°−22° (2013)
- Heating degree days
- 1023
- Cooling degree days
- 0
Allenspark in May
Highs average 50°10° and lows 29°−2°, with 3.8 in97 mm of precipitation in a typical May.
- Record high
- 71°22° (2010)
- Record low
- −1°−18° (2013)
- Heating degree days
- 795
- Cooling degree days
- 0
Allenspark in June
Highs average 62°17° and lows 36°2°, with 2 in50 mm of precipitation in a typical June.
- Record high
- 80°27° (2021)
- Record low
- 24°−4° (2007)
- Heating degree days
- 485
- Cooling degree days
- 0
Allenspark in July
Highs average 68°20° and lows 43°6°, with 3 in77 mm of precipitation in a typical July.
- Record high
- 80°27° (2005)
- Record low
- 29°−2° (2018)
- Heating degree days
- 304
- Cooling degree days
- 0
Allenspark in August
Highs average 66°19° and lows 41°5°, with 2.5 in64 mm of precipitation in a typical August.
- Record high
- 80°27° (2026)
- Record low
- 27°−3° (2004)
- Heating degree days
- 363
- Cooling degree days
- 0
Allenspark in September
Highs average 59°15° and lows 34°1°, with 2 in51 mm of precipitation in a typical September.
- Record high
- 78°26° (2020)
- Record low
- 17°−8° (2020)
- Heating degree days
- 568
- Cooling degree days
- 0
Allenspark in OctoberThis month
Highs average 47°8° and lows 26°−3°, with 2.2 in55 mm of precipitation in a typical October.
- Record high
- 67°19° (2003)
- Record low
- −15°−26° (2019)
- Heating degree days
- 887
- Cooling degree days
- 0
Allenspark in November
Highs average 35°2° and lows 19°−7°, with 2.3 in57 mm of precipitation in a typical November.
- Record high
- 59°15° (2020)
- Record low
- −18°−28° (2014)
- Heating degree days
- 1134
- Cooling degree days
- 0
Allenspark in December
Highs average 28°−2° and lows 12°−11°, with 2.2 in55 mm of precipitation in a typical December.
- Record high
- 56°13° (2021)
- Record low
- −24°−31° (2005)
- Heating degree days
- 1403
- Cooling degree days
- 0
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