Collbran weather by month
What a typical year looks like in Collbran, Colorado: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Bonham Reservoir, 16 km from Collbran; records cover 1963–2026.
The year at a glance
- Precipitation a year
- 31.4 in797 mm
- Snow a year
- Rare
- Last spring freeze
- Jun 15
- First fall freeze
- Sep 7
- Heating degree days
- 11,617
- 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 −20°−29° (heating, 99%) and 75°24° (cooling, 1%).
Month by month
Collbran in January
Highs average 26°−3° and lows 6°−14°, with 2.9 in73 mm of precipitation in a typical January.
- Record high
- 55°13° (2015)
- Record low
- −36°−38° (1971)
- Heating degree days
- 1516
- Cooling degree days
- 0
Collbran in February
Highs average 27°−3° and lows 4°−16°, with 3.6 in91 mm of precipitation in a typical February.
- Record high
- 48°9° (2015)
- Record low
- −33°−36° (2011)
- Heating degree days
- 1390
- Cooling degree days
- 0
Collbran in March
Highs average 34°1° and lows 12°−11°, with 3.1 in78 mm of precipitation in a typical March.
- Record high
- 66°19° (1971)
- Record low
- −24°−31° (2008)
- Heating degree days
- 1300
- Cooling degree days
- 0
Collbran in April
Highs average 40°4° and lows 17°−8°, with 3 in76 mm of precipitation in a typical April.
- Record high
- 68°20° (1971)
- Record low
- −16°−27° (2008)
- Heating degree days
- 1090
- Cooling degree days
- 0
Collbran in May
Highs average 49°10° and lows 27°−3°, with 2.1 in54 mm of precipitation in a typical May.
- Record high
- 76°24° (1971)
- Record low
- −3°−19° (2011)
- Heating degree days
- 835
- Cooling degree days
- 0
Collbran in June
Highs average 62°17° and lows 37°3°, with 1.1 in28 mm of precipitation in a typical June.
- Record high
- 80°27° (2013)
- Record low
- 19°−7° (2011)
- Heating degree days
- 470
- Cooling degree days
- 0
Collbran in July
Highs average 68°20° and lows 42°6°, with 2 in52 mm of precipitation in a typical July.
- Record high
- 84°29° (2026)
- Record low
- 27°−3° (2004)
- Heating degree days
- 312
- Cooling degree days
- 0
Collbran in August
Highs average 64°18° and lows 40°5°, with 2.2 in57 mm of precipitation in a typical August.
- Record high
- 82°28° (2025)
- Record low
- 19°−7° (2004)
- Heating degree days
- 406
- Cooling degree days
- 0
Collbran in September
Highs average 57°14° and lows 34°1°, with 2.5 in62 mm of precipitation in a typical September.
- Record high
- 80°27° (2021)
- Record low
- 11°−12° (2006)
- Heating degree days
- 579
- Cooling degree days
- 0
Collbran in OctoberThis month
Highs average 45°7° and lows 24°−4°, with 2.6 in66 mm of precipitation in a typical October.
- Record high
- 67°19° (2015)
- Record low
- −14°−26° (2020)
- Heating degree days
- 939
- Cooling degree days
- 0
Collbran in November
Highs average 34°1° and lows 14°−10°, with 2.5 in62 mm of precipitation in a typical November.
- Record high
- 57°14° (2009)
- Record low
- −26°−32° (2006)
- Heating degree days
- 1236
- Cooling degree days
- 0
Collbran in December
Highs average 26°−3° and lows 5°−15°, with 3.8 in97 mm of precipitation in a typical December.
- Record high
- 58°14° (1970)
- Record low
- −30°−34° (2005)
- Heating degree days
- 1544
- Cooling degree days
- 0
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