Portales weather by month
What a typical year looks like in Portales, New Mexico: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at PORTALES, 1 km from Portales; records cover 1905–2026.
The year at a glance
- Precipitation a year
- 16.1 in409 mm
- Snow a year
- 8 in19 cm
- Last spring freeze
- Apr 15
- First fall freeze
- Oct 20
- Heating degree days
- 3,433
- Cooling degree days
- 1,671
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 11°−12° (heating, 99%) and 103°39° (cooling, 1%).
Month by month
Portales in January
Highs average 55°13° and lows 26°−4°, with 0.5 in13 mm of precipitation and 1.7 in4.3 cm of snow in a typical January.
- Record high
- 80°27° (1950)
- Record low
- −18°−28° (1947)
- Heating degree days
- 767
- Cooling degree days
- 0
Portales in February
Highs average 61°16° and lows 29°−2°, with 0.37 in9.4 mm of precipitation and 1.4 in3.6 cm of snow in a typical February.
- Record high
- 85°29° (1962)
- Record low
- −15°−26° (1951)
- Heating degree days
- 570
- Cooling degree days
- 0
Portales in March
Highs average 69°20° and lows 35°2°, with 0.74 in19 mm of precipitation and 0.7 in1.8 cm of snow in a typical March.
- Record high
- 98°37° (2026)
- Record low
- −4°−20° (1922)
- Heating degree days
- 408
- Cooling degree days
- 2
Portales in April
Highs average 77°25° and lows 43°6°, with 0.68 in17 mm of precipitation and 0.2 in0.5 cm of snow in a typical April.
- Record high
- 100°38° (1965)
- Record low
- 11°−12° (1920)
- Heating degree days
- 183
- Cooling degree days
- 26
Portales in May
Highs average 85°29° and lows 53°11°, with 1.5 in38 mm of precipitation in a typical May.
- Record high
- 103°39° (2000)
- Record low
- 23°−5° (2013)
- Heating degree days
- 43
- Cooling degree days
- 158
Portales in June
Highs average 93°34° and lows 62°17°, with 2.1 in54 mm of precipitation in a typical June.
- Record high
- 109°43° (1924)
- Record low
- 33°1° (1919)
- Heating degree days
- 1
- Cooling degree days
- 378
Portales in July
Highs average 93°34° and lows 66°19°, with 2.3 in58 mm of precipitation in a typical July.
- Record high
- 109°43° (2016)
- Record low
- 50°10° (1905)
- Heating degree days
- 0
- Cooling degree days
- 459
Portales in August
Highs average 91°33° and lows 65°18°, with 2.9 in74 mm of precipitation in a typical August.
- Record high
- 107°42° (1969)
- Record low
- 40°4° (1915)
- Heating degree days
- 0
- Cooling degree days
- 406
Portales in September
Highs average 85°30° and lows 57°14°, with 1.9 in49 mm of precipitation in a typical September.
- Record high
- 104°40° (1945)
- Record low
- 29°−2° (1983)
- Heating degree days
- 18
- Cooling degree days
- 207
Portales in OctoberThis month
Highs average 76°24° and lows 45°7°, with 1.8 in46 mm of precipitation and 0.3 in0.8 cm of snow in a typical October.
- Record high
- 95°35° (1967)
- Record low
- 11°−12° (2019)
- Heating degree days
- 177
- Cooling degree days
- 34
Portales in November
Highs average 63°17° and lows 33°1°, with 0.56 in14 mm of precipitation and 0.5 in1.3 cm of snow in a typical November.
- Record high
- 90°32° (1950)
- Record low
- 0°−18° (1916)
- Heating degree days
- 500
- Cooling degree days
- 1
Portales in December
Highs average 55°13° and lows 26°−3°, with 0.66 in17 mm of precipitation and 2.8 in7.1 cm of snow in a typical December.
- Record high
- 87°31° (1906)
- Record low
- −12°−24° (1978)
- Heating degree days
- 766
- Cooling degree days
- 0