Lamar weather by month
What a typical year looks like in Lamar, Colorado: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at LAMAR, 2 km from Lamar; records cover 1893–2026.
The year at a glance
- Precipitation a year
- 16.2 in411 mm
- Snow a year
- 30 in76 cm
- Last spring freeze
- Apr 30
- First fall freeze
- Oct 10
- Heating degree days
- 5,525
- Cooling degree days
- 1,229
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −2°−19° (heating, 99%) and 103°39° (cooling, 1%).
Month by month
Lamar in January
Highs average 45°7° and lows 14°−10°, with 0.33 in8.4 mm of precipitation and 6 in16 cm of snow in a typical January.
- Record high
- 82°28° (1928)
- Record low
- −29°−34° (1949)
- Heating degree days
- 1104
- Cooling degree days
- 0
Lamar in February
Highs average 49°10° and lows 17°−8°, with 0.42 in11 mm of precipitation and 5 in14 cm of snow in a typical February.
- Record high
- 86°30° (2016)
- Record low
- −30°−34° (1899)
- Heating degree days
- 893
- Cooling degree days
- 0
Lamar in March
Highs average 60°16° and lows 26°−3°, with 0.72 in18 mm of precipitation and 5 in12 cm of snow in a typical March.
- Record high
- 94°34° (1907)
- Record low
- −23°−31° (1948)
- Heating degree days
- 674
- Cooling degree days
- 0
Lamar in April
Highs average 68°20° and lows 36°2°, with 1.5 in37 mm of precipitation and 1.7 in4.3 cm of snow in a typical April.
- Record high
- 98°37° (1989)
- Record low
- 8°−13° (1920)
- Heating degree days
- 389
- Cooling degree days
- 6
Lamar in May
Highs average 78°25° and lows 47°8°, with 1.9 in49 mm of precipitation and 0.1 in0.3 cm of snow in a typical May.
- Record high
- 103°39° (1925)
- Record low
- 20°−7° (1909)
- Heating degree days
- 151
- Cooling degree days
- 66
Lamar in June
Highs average 89°32° and lows 58°14°, with 2.5 in64 mm of precipitation in a typical June.
- Record high
- 111°44° (2012)
- Record low
- 33°1° (1917)
- Heating degree days
- 17
- Cooling degree days
- 260
Lamar in July
Highs average 93°34° and lows 63°17°, with 2.8 in71 mm of precipitation in a typical July.
- Record high
- 111°44° (1934)
- Record low
- 43°6° (1952)
- Heating degree days
- 2
- Cooling degree days
- 408
Lamar in August
Highs average 91°33° and lows 61°16°, with 2.8 in71 mm of precipitation in a typical August.
- Record high
- 110°43° (1938)
- Record low
- 40°4° (1992)
- Heating degree days
- 3
- Cooling degree days
- 336
Lamar in September
Highs average 84°29° and lows 52°11°, with 1.2 in30 mm of precipitation in a typical September.
- Record high
- 106°41° (1899)
- Record low
- 23°−5° (1985)
- Heating degree days
- 69
- Cooling degree days
- 144
Lamar in OctoberThis month
Highs average 70°21° and lows 36°2°, with 1.1 in27 mm of precipitation and 2.1 in5.3 cm of snow in a typical October.
- Record high
- 99°37° (1911)
- Record low
- 1°−17° (2019)
- Heating degree days
- 383
- Cooling degree days
- 9
Lamar in November
Highs average 56°14° and lows 23°−5°, with 0.48 in12 mm of precipitation and 4 in9 cm of snow in a typical November.
- Record high
- 89°32° (1927)
- Record low
- −12°−24° (1952)
- Heating degree days
- 754
- Cooling degree days
- 0
Lamar in December
Highs average 46°8° and lows 14°−10°, with 0.46 in12 mm of precipitation and 6 in15 cm of snow in a typical December.
- Record high
- 82°28° (1955)
- Record low
- −23°−31° (1932)
- Heating degree days
- 1086
- Cooling degree days
- 0
UniColorado Heating & Cooling, a Denver HVAC installer
UniColorado Heating & Cooling installs heat pumps, furnaces and air conditioning across the Front Range. 12,000+ heat pumps installed since 2014.