Plains weather by month
What a typical year looks like in Plains, Texas: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Plains, 1 km from Plains; records cover 1946–2026.
The year at a glance
- Precipitation a year
- 16.2 in411 mm
- Snow a year
- 2.7 in6.9 cm
- Last spring freeze
- Apr 13
- First fall freeze
- Oct 30
- Heating degree days
- 3,575
- Cooling degree days
- 1,602
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 13°−11° (heating, 99%) and 102°39° (cooling, 1%).
Month by month
Plains in January
Highs average 54°12° and lows 25°−4°, with 0.52 in13 mm of precipitation and 0.5 in1.3 cm of snow in a typical January.
- Record high
- 82°28° (2000)
- Record low
- −12°−24° (1948)
- Heating degree days
- 794
- Cooling degree days
- 0
Plains in February
Highs average 59°15° and lows 28°−2°, with 0.59 in15 mm of precipitation and 0.9 in2.3 cm of snow in a typical February.
- Record high
- 86°30° (2017)
- Record low
- −12°−24° (1951)
- Heating degree days
- 595
- Cooling degree days
- 0
Plains in March
Highs average 67°20° and lows 35°2°, with 1 in26 mm of precipitation in a typical March.
- Record high
- 99°37° (2026)
- Record low
- 4°−16° (1948)
- Heating degree days
- 435
- Cooling degree days
- 2
Plains in April
Highs average 75°24° and lows 42°6°, with 0.91 in23 mm of precipitation in a typical April.
- Record high
- 98°37° (1965)
- Record low
- 16°−9° (1973)
- Heating degree days
- 211
- Cooling degree days
- 22
Plains in May
Highs average 84°29° and lows 53°12°, with 1.6 in40 mm of precipitation in a typical May.
- Record high
- 107°42° (2000)
- Record low
- 25°−4° (1967)
- Heating degree days
- 57
- Cooling degree days
- 161
Plains in June
Highs average 92°33° and lows 62°17°, with 2 in51 mm of precipitation in a typical June.
- Record high
- 111°44° (1994)
- Record low
- 42°6° (1970)
- Heating degree days
- 1
- Cooling degree days
- 359
Plains in July
Highs average 93°34° and lows 65°19°, with 2.1 in53 mm of precipitation in a typical July.
- Record high
- 109°43° (1998)
- Record low
- 50°10° (1952)
- Heating degree days
- 0
- Cooling degree days
- 431
Plains in August
Highs average 91°33° and lows 64°18°, with 2.1 in53 mm of precipitation in a typical August.
- Record high
- 107°42° (2026)
- Record low
- 49°9° (1967)
- Heating degree days
- 0
- Cooling degree days
- 397
Plains in September
Highs average 84°29° and lows 57°14°, with 2.5 in63 mm of precipitation in a typical September.
- Record high
- 104°40° (2023)
- Record low
- 34°1° (1973)
- Heating degree days
- 25
- Cooling degree days
- 193
Plains in OctoberThis month
Highs average 75°24° and lows 45°7°, with 1.4 in36 mm of precipitation in a typical October.
- Record high
- 100°38° (1977)
- Record low
- 12°−11° (2019)
- Heating degree days
- 188
- Cooling degree days
- 36
Plains in November
Highs average 63°17° and lows 33°0°, with 0.7 in18 mm of precipitation and 0.2 in0.5 cm of snow in a typical November.
- Record high
- 88°31° (2016)
- Record low
- −2°−19° (1957)
- Heating degree days
- 508
- Cooling degree days
- 1
Plains in December
Highs average 55°13° and lows 26°−3°, with 0.77 in20 mm of precipitation and 1.1 in2.8 cm of snow in a typical December.
- Record high
- 82°28° (2025)
- Record low
- −4°−20° (1989)
- Heating degree days
- 761
- Cooling degree days
- 0