Idalou weather by month
What a typical year looks like in Idalou, Texas: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Lubbock International Airport, 13 km from Idalou; records cover 1911–2026.
The year at a glance
- Precipitation a year
- 18.3 in466 mm
- Snow a year
- 7 in18 cm
- Last spring freeze
- Apr 6
- First fall freeze
- Oct 28
- Heating degree days
- 3,244
- Cooling degree days
- 1,948
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 103°39° (cooling, 1%).
Month by month
Idalou in January
Highs average 55°13° and lows 27°−3°, with 0.65 in17 mm of precipitation and 1.6 in4.1 cm of snow in a typical January.
- Record high
- 87°31° (1914)
- Record low
- −16°−27° (1963)
- Heating degree days
- 741
- Cooling degree days
- 0
Idalou in February
Highs average 60°15° and lows 31°−1°, with 0.65 in17 mm of precipitation and 1.4 in3.6 cm of snow in a typical February.
- Record high
- 91°33° (2017)
- Record low
- −17°−27° (1933)
- Heating degree days
- 556
- Cooling degree days
- 0
Idalou in March
Highs average 68°20° and lows 38°3°, with 1.1 in28 mm of precipitation and 0.4 in1 cm of snow in a typical March.
- Record high
- 98°37° (2026)
- Record low
- −2°−19° (1922)
- Heating degree days
- 381
- Cooling degree days
- 10
Idalou in April
Highs average 76°24° and lows 46°8°, with 1.3 in34 mm of precipitation and 0.1 in0.3 cm of snow in a typical April.
- Record high
- 104°40° (2012)
- Record low
- 18°−8° (1920)
- Heating degree days
- 169
- Cooling degree days
- 53
Idalou in May
Highs average 84°29° and lows 57°14°, with 2.7 in68 mm of precipitation in a typical May.
- Record high
- 109°43° (2000)
- Record low
- 27°−3° (2013)
- Heating degree days
- 42
- Cooling degree days
- 210
Idalou in June
Highs average 92°33° and lows 66°19°, with 2.6 in66 mm of precipitation in a typical June.
- Record high
- 114°46° (1994)
- Record low
- 39°4° (1917)
- Heating degree days
- 1
- Cooling degree days
- 409
Idalou in July
Highs average 93°34° and lows 69°21°, with 2 in50 mm of precipitation in a typical July.
- Record high
- 111°44° (2020)
- Record low
- 49°9° (1915)
- Heating degree days
- 0
- Cooling degree days
- 502
Idalou in August
Highs average 92°33° and lows 68°20°, with 1.7 in44 mm of precipitation in a typical August.
- Record high
- 109°43° (2019)
- Record low
- 43°6° (1915)
- Heating degree days
- 0
- Cooling degree days
- 460
Idalou in September
Highs average 85°29° and lows 60°15°, with 2.6 in65 mm of precipitation in a typical September.
- Record high
- 107°42° (2023)
- Record low
- 33°1° (1916)
- Heating degree days
- 20
- Cooling degree days
- 240
Idalou in OctoberThis month
Highs average 76°24° and lows 48°9°, with 1.5 in39 mm of precipitation and 0.1 in0.3 cm of snow in a typical October.
- Record high
- 100°38° (2000)
- Record low
- 16°−9° (2019)
- Heating degree days
- 160
- Cooling degree days
- 60
Idalou in November
Highs average 64°18° and lows 36°2°, with 0.8 in20 mm of precipitation and 1 in2.5 cm of snow in a typical November.
- Record high
- 90°32° (2006)
- Record low
- −1°−18° (1957)
- Heating degree days
- 452
- Cooling degree days
- 4
Idalou in December
Highs average 55°13° and lows 28°−2°, with 0.75 in19 mm of precipitation and 2.4 in6.1 cm of snow in a typical December.
- Record high
- 86°30° (2025)
- Record low
- −2°−19° (1924)
- Heating degree days
- 722
- Cooling degree days
- 0