Mountainair weather by month
What a typical year looks like in Mountainair, New Mexico: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Mountainair, 2 km from Mountainair; records cover 1902–2026.
The year at a glance
- Precipitation a year
- 12.9 in329 mm
- Snow a year
- 14 in36 cm
- Last spring freeze
- May 6
- First fall freeze
- Oct 8
- Heating degree days
- 4,823
- Cooling degree days
- 721
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 4°−16° (heating, 99%) and 96°36° (cooling, 1%).
Month by month
Mountainair in January
Highs average 47°8° and lows 23°−5°, with 0.57 in14 mm of precipitation and 2.7 in6.9 cm of snow in a typical January.
- Record high
- 69°21° (2000)
- Record low
- −25°−32° (1971)
- Heating degree days
- 933
- Cooling degree days
- 0
Mountainair in February
Highs average 52°11° and lows 26°−4°, with 0.44 in11 mm of precipitation and 3 in8 cm of snow in a typical February.
- Record high
- 85°29° (1907)
- Record low
- −24°−31° (1951)
- Heating degree days
- 735
- Cooling degree days
- 0
Mountainair in March
Highs average 60°16° and lows 31°0°, with 0.66 in17 mm of precipitation and 2 in5.1 cm of snow in a typical March.
- Record high
- 86°30° (2026)
- Record low
- −5°−21° (2005)
- Heating degree days
- 600
- Cooling degree days
- 0
Mountainair in April
Highs average 68°20° and lows 36°2°, with 0.43 in11 mm of precipitation and 0.6 in1.5 cm of snow in a typical April.
- Record high
- 88°31° (1943)
- Record low
- 7°−14° (1933)
- Heating degree days
- 388
- Cooling degree days
- 1
Mountainair in May
Highs average 77°25° and lows 44°7°, with 0.74 in19 mm of precipitation in a typical May.
- Record high
- 101°38° (2002)
- Record low
- 13°−11° (1981)
- Heating degree days
- 170
- Cooling degree days
- 27
Mountainair in June
Highs average 87°30° and lows 54°12°, with 0.89 in23 mm of precipitation in a typical June.
- Record high
- 102°39° (1994)
- Record low
- 28°−2° (1969)
- Heating degree days
- 14
- Cooling degree days
- 171
Mountainair in July
Highs average 87°31° and lows 59°15°, with 2.5 in64 mm of precipitation in a typical July.
- Record high
- 101°38° (1995)
- Record low
- 38°3° (1995)
- Heating degree days
- 1
- Cooling degree days
- 254
Mountainair in August
Highs average 85°29° and lows 58°14°, with 2.4 in62 mm of precipitation in a typical August.
- Record high
- 101°38° (2007)
- Record low
- 40°4° (1902)
- Heating degree days
- 2
- Cooling degree days
- 199
Mountainair in September
Highs average 79°26° and lows 51°11°, with 1.7 in44 mm of precipitation in a typical September.
- Record high
- 95°35° (1945)
- Record low
- 21°−6° (1983)
- Heating degree days
- 61
- Cooling degree days
- 67
Mountainair in OctoberThis month
Highs average 69°21° and lows 41°5°, with 1.2 in31 mm of precipitation and 0.2 in0.5 cm of snow in a typical October.
- Record high
- 90°32° (1982)
- Record low
- 1°−17° (1991)
- Heating degree days
- 312
- Cooling degree days
- 2
Mountainair in November
Highs average 57°14° and lows 29°−1°, with 0.57 in14 mm of precipitation and 1.2 in3 cm of snow in a typical November.
- Record high
- 79°26° (2025)
- Record low
- −10°−23° (1976)
- Heating degree days
- 660
- Cooling degree days
- 0
Mountainair in December
Highs average 47°8° and lows 22°−5°, with 0.75 in19 mm of precipitation and 4 in11 cm of snow in a typical December.
- Record high
- 70°21° (2003)
- Record low
- −14°−26° (1912)
- Heating degree days
- 947
- Cooling degree days
- 0