Dexter weather by month
What a typical year looks like in Dexter, New Mexico: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Roswell Industrial Air Park, 18 km from Dexter; records cover 1893–2026.
The year at a glance
- Precipitation a year
- 11.6 in295 mm
- Snow a year
- 10 in24 cm
- Last spring freeze
- Apr 6
- First fall freeze
- Oct 30
- Heating degree days
- 2,874
- Cooling degree days
- 2,236
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 14°−10° (heating, 99%) and 106°41° (cooling, 1%).
Month by month
Dexter in January
Highs average 57°14° and lows 28°−2°, with 0.36 in9.1 mm of precipitation and 2.4 in6.1 cm of snow in a typical January.
- Record high
- 88°31° (1893)
- Record low
- −24°−31° (1962)
- Heating degree days
- 691
- Cooling degree days
- 0
Dexter in February
Highs average 63°17° and lows 33°0°, with 0.35 in8.9 mm of precipitation and 1.1 in2.8 cm of snow in a typical February.
- Record high
- 91°33° (2016)
- Record low
- −24°−31° (1933)
- Heating degree days
- 481
- Cooling degree days
- 1
Dexter in March
Highs average 71°22° and lows 39°4°, with 0.54 in14 mm of precipitation and 0.7 in1.8 cm of snow in a typical March.
- Record high
- 100°38° (2026)
- Record low
- −5°−21° (1948)
- Heating degree days
- 312
- Cooling degree days
- 9
Dexter in April
Highs average 79°26° and lows 47°8°, with 0.57 in14 mm of precipitation in a typical April.
- Record high
- 102°39° (2012)
- Record low
- 17°−8° (1920)
- Heating degree days
- 117
- Cooling degree days
- 63
Dexter in May
Highs average 88°31° and lows 57°14°, with 1.1 in29 mm of precipitation in a typical May.
- Record high
- 107°42° (1896)
- Record low
- 27°−3° (1913)
- Heating degree days
- 20
- Cooling degree days
- 245
Dexter in June
Highs average 96°36° and lows 66°19°, with 1.3 in33 mm of precipitation in a typical June.
- Record high
- 114°46° (1994)
- Record low
- 40°4° (1970)
- Heating degree days
- 0
- Cooling degree days
- 479
Dexter in July
Highs average 97°36° and lows 70°21°, with 1.8 in46 mm of precipitation in a typical July.
- Record high
- 112°44° (2023)
- Record low
- 52°11° (1947)
- Heating degree days
- 0
- Cooling degree days
- 564
Dexter in August
Highs average 95°35° and lows 69°20°, with 1.7 in43 mm of precipitation in a typical August.
- Record high
- 111°44° (2019)
- Record low
- 48°9° (1915)
- Heating degree days
- 0
- Cooling degree days
- 515
Dexter in September
Highs average 88°31° and lows 61°16°, with 1.6 in39 mm of precipitation in a typical September.
- Record high
- 106°41° (2023)
- Record low
- 30°−1° (1901)
- Heating degree days
- 9
- Cooling degree days
- 291
Dexter in OctoberThis month
Highs average 78°25° and lows 49°9°, with 1.3 in34 mm of precipitation and 0.4 in1 cm of snow in a typical October.
- Record high
- 99°37° (2000)
- Record low
- 14°−10° (1991)
- Heating degree days
- 122
- Cooling degree days
- 67
Dexter in November
Highs average 66°19° and lows 36°2°, with 0.45 in11 mm of precipitation and 1.2 in3 cm of snow in a typical November.
- Record high
- 94°34° (1894)
- Record low
- −6°−21° (1906)
- Heating degree days
- 422
- Cooling degree days
- 2
Dexter in December
Highs average 57°14° and lows 28°−2°, with 0.56 in14 mm of precipitation and 4 in10 cm of snow in a typical December.
- Record high
- 84°29° (1958)
- Record low
- −10°−23° (1909)
- Heating degree days
- 700
- Cooling degree days
- 0