Morton weather by month
What a typical year looks like in Morton, Texas: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Morton, 1 km from Morton; records cover 1962–2026.
The year at a glance
- Precipitation a year
- 17.6 in447 mm
- Snow a year
- 6 in16 cm
- Last spring freeze
- Apr 13
- First fall freeze
- Oct 28
- Heating degree days
- 3,606
- Cooling degree days
- 1,585
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 12°−11° (heating, 99%) and 102°39° (cooling, 1%).
Month by month
Morton in January
Highs average 55°13° and lows 24°−4°, with 0.62 in16 mm of precipitation and 1.4 in3.6 cm of snow in a typical January.
- Record high
- 82°28° (1975)
- Record low
- −12°−24° (1963)
- Heating degree days
- 784
- Cooling degree days
- 0
Morton in February
Highs average 59°15° and lows 27°−3°, with 0.61 in15 mm of precipitation and 1.4 in3.6 cm of snow in a typical February.
- Record high
- 86°30° (2017)
- Record low
- −2°−19° (2011)
- Heating degree days
- 608
- Cooling degree days
- 0
Morton in March
Highs average 67°19° and lows 34°1°, with 1.1 in28 mm of precipitation and 0.4 in1 cm of snow in a typical March.
- Record high
- 100°38° (2026)
- Record low
- 7°−14° (1965)
- Heating degree days
- 454
- Cooling degree days
- 3
Morton in April
Highs average 75°24° and lows 42°5°, with 0.87 in22 mm of precipitation and 0.1 in0.3 cm of snow in a typical April.
- Record high
- 99°37° (2012)
- Record low
- 21°−6° (1973)
- Heating degree days
- 218
- Cooling degree days
- 23
Morton in May
Highs average 84°29° and lows 52°11°, with 1.9 in49 mm of precipitation in a typical May.
- Record high
- 107°42° (2000)
- Record low
- 25°−4° (2013)
- Heating degree days
- 61
- Cooling degree days
- 152
Morton in June
Highs average 92°33° and lows 62°17°, with 2.3 in58 mm of precipitation in a typical June.
- Record high
- 111°44° (2011)
- Record low
- 40°4° (1975)
- Heating degree days
- 2
- Cooling degree days
- 357
Morton in July
Highs average 93°34° and lows 65°18°, with 2.4 in60 mm of precipitation in a typical July.
- Record high
- 110°43° (2016)
- Record low
- 52°11° (2005)
- Heating degree days
- 0
- Cooling degree days
- 436
Morton in August
Highs average 92°33° and lows 64°18°, with 2.5 in64 mm of precipitation in a typical August.
- Record high
- 108°42° (2019)
- Record low
- 48°9° (2010)
- Heating degree days
- 1
- Cooling degree days
- 390
Morton in September
Highs average 85°29° and lows 56°13°, with 2.3 in59 mm of precipitation in a typical September.
- Record high
- 106°41° (2026)
- Record low
- 32°0° (1983)
- Heating degree days
- 29
- Cooling degree days
- 188
Morton in OctoberThis month
Highs average 75°24° and lows 45°7°, with 1.5 in38 mm of precipitation and 0.2 in0.5 cm of snow in a typical October.
- Record high
- 99°37° (2000)
- Record low
- 13°−11° (2019)
- Heating degree days
- 195
- Cooling degree days
- 35
Morton in November
Highs average 64°18° and lows 33°1°, with 0.85 in22 mm of precipitation and 1.2 in3 cm of snow in a typical November.
- Record high
- 87°31° (2005)
- Record low
- 5°−15° (1976)
- Heating degree days
- 498
- Cooling degree days
- 1
Morton in December
Highs average 55°13° and lows 26°−3°, with 0.63 in16 mm of precipitation and 1.6 in4.1 cm of snow in a typical December.
- Record high
- 81°27° (2010)
- Record low
- −4°−20° (1978)
- Heating degree days
- 756
- Cooling degree days
- 0