Primera weather by month
What a typical year looks like in Primera, Texas: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Harlingen Rio Grande Valley International Airport, 10 km from Primera; records cover 1952–2026.
The year at a glance
- Precipitation a year
- 24 in611 mm
- Snow a year
- Rare
- Last spring freeze
- Jan 17
- First fall freeze
- Dec 19
- Heating degree days
- 571
- Cooling degree days
- 4,218
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 35°2° (heating, 99%) and 101°38° (cooling, 1%).
Month by month
Primera in January
Highs average 72°22° and lows 50°10°, with 1.1 in27 mm of precipitation in a typical January.
- Record high
- 94°34° (2002)
- Record low
- 17°−8° (1962)
- Heating degree days
- 190
- Cooling degree days
- 58
Primera in February
Highs average 76°24° and lows 54°12°, with 0.73 in19 mm of precipitation in a typical February.
- Record high
- 96°36° (1962)
- Record low
- 22°−6° (2021)
- Heating degree days
- 105
- Cooling degree days
- 102
Primera in March
Highs average 81°27° and lows 59°15°, with 1.3 in33 mm of precipitation in a typical March.
- Record high
- 101°38° (1954)
- Record low
- 34°1° (2007)
- Heating degree days
- 40
- Cooling degree days
- 201
Primera in April
Highs average 87°30° and lows 65°18°, with 1.5 in37 mm of precipitation in a typical April.
- Record high
- 106°41° (2022)
- Record low
- 41°5° (2007)
- Heating degree days
- 7
- Cooling degree days
- 332
Primera in May
Highs average 91°33° and lows 71°22°, with 2.5 in64 mm of precipitation in a typical May.
- Record high
- 107°42° (2024)
- Record low
- 50°10° (2004)
- Heating degree days
- 0
- Cooling degree days
- 502
Primera in June
Highs average 95°35° and lows 75°24°, with 2.3 in57 mm of precipitation in a typical June.
- Record high
- 106°41° (2012)
- Record low
- 60°16° (1997)
- Heating degree days
- 0
- Cooling degree days
- 594
Primera in July
Highs average 96°36° and lows 75°24°, with 1.8 in45 mm of precipitation in a typical July.
- Record high
- 106°41° (2018)
- Record low
- 68°20° (2019)
- Heating degree days
- 0
- Cooling degree days
- 643
Primera in August
Highs average 97°36° and lows 75°24°, with 1.9 in49 mm of precipitation in a typical August.
- Record high
- 106°41° (2011)
- Record low
- 68°20° (1999)
- Heating degree days
- 0
- Cooling degree days
- 658
Primera in September
Highs average 92°33° and lows 73°23°, with 5.3 in135 mm of precipitation in a typical September.
- Record high
- 107°42° (2000)
- Record low
- 53°12° (2000)
- Heating degree days
- 0
- Cooling degree days
- 520
Primera in OctoberThis month
Highs average 88°31° and lows 66°19°, with 2.7 in69 mm of precipitation in a typical October.
- Record high
- 101°38° (2012)
- Record low
- 39°4° (2017)
- Heating degree days
- 5
- Cooling degree days
- 364
Primera in November
Highs average 79°26° and lows 57°14°, with 1.8 in46 mm of precipitation in a typical November.
- Record high
- 94°34° (1997)
- Record low
- 31°−1° (2018)
- Heating degree days
- 62
- Cooling degree days
- 162
Primera in December
Highs average 73°23° and lows 52°11°, with 1.2 in31 mm of precipitation in a typical December.
- Record high
- 90°32° (2019)
- Record low
- 27°−3° (2022)
- Heating degree days
- 162
- Cooling degree days
- 82