Sterlington weather by month
What a typical year looks like in Sterlington, Louisiana: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Monroe Regional Airport, 20 km from Sterlington; records cover 1893–2026.
The year at a glance
- Precipitation a year
- 55.1 in1400 mm
- Snow a year
- Rare
- Last spring freeze
- Feb 27
- First fall freeze
- Nov 16
- Heating degree days
- 2,212
- Cooling degree days
- 2,495
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 23°−5° (heating, 99%) and 101°38° (cooling, 1%).
Month by month
Sterlington in January
Highs average 57°14° and lows 37°3°, with 5.2 in131 mm of precipitation in a typical January.
- Record high
- 86°30° (1911)
- Record low
- −1°−18° (1962)
- Heating degree days
- 566
- Cooling degree days
- 4
Sterlington in February
Highs average 61°16° and lows 40°5°, with 4.7 in118 mm of precipitation in a typical February.
- Record high
- 89°32° (1918)
- Record low
- −2°−19° (1951)
- Heating degree days
- 410
- Cooling degree days
- 8
Sterlington in March
Highs average 69°21° and lows 47°8°, with 5.2 in132 mm of precipitation in a typical March.
- Record high
- 95°35° (1911)
- Record low
- 18°−8° (1996)
- Heating degree days
- 246
- Cooling degree days
- 34
Sterlington in April
Highs average 77°25° and lows 54°12°, with 5.8 in148 mm of precipitation in a typical April.
- Record high
- 97°36° (1931)
- Record low
- 31°−1° (1926)
- Heating degree days
- 83
- Cooling degree days
- 98
Sterlington in May
Highs average 84°29° and lows 63°17°, with 4.4 in113 mm of precipitation in a typical May.
- Record high
- 104°40° (1998)
- Record low
- 39°4° (2013)
- Heating degree days
- 8
- Cooling degree days
- 280
Sterlington in June
Highs average 91°33° and lows 70°21°, with 4.5 in113 mm of precipitation in a typical June.
- Record high
- 108°42° (1931)
- Record low
- 51°11° (1984)
- Heating degree days
- 0
- Cooling degree days
- 459
Sterlington in July
Highs average 93°34° and lows 73°23°, with 3.9 in100 mm of precipitation in a typical July.
- Record high
- 109°43° (1918)
- Record low
- 55°13° (1926)
- Heating degree days
- 0
- Cooling degree days
- 553
Sterlington in August
Highs average 94°34° and lows 71°22°, with 3.6 in90 mm of precipitation in a typical August.
- Record high
- 108°42° (1918)
- Record low
- 51°11° (1968)
- Heating degree days
- 0
- Cooling degree days
- 542
Sterlington in September
Highs average 89°32° and lows 66°19°, with 3.6 in90 mm of precipitation in a typical September.
- Record high
- 107°42° (2000)
- Record low
- 35°2° (1967)
- Heating degree days
- 3
- Cooling degree days
- 366
Sterlington in OctoberThis month
Highs average 79°26° and lows 54°12°, with 5 in126 mm of precipitation in a typical October.
- Record high
- 101°38° (1904)
- Record low
- 29°−2° (1910)
- Heating degree days
- 84
- Cooling degree days
- 123
Sterlington in November
Highs average 67°20° and lows 44°7°, with 4.2 in106 mm of precipitation in a typical November.
- Record high
- 90°32° (1971)
- Record low
- 19°−7° (1969)
- Heating degree days
- 302
- Cooling degree days
- 20
Sterlington in December
Highs average 59°15° and lows 39°4°, with 5.2 in133 mm of precipitation in a typical December.
- Record high
- 89°32° (1908)
- Record low
- 5°−15° (1983)
- Heating degree days
- 510
- Cooling degree days
- 8