Belle Chasse weather by month
What a typical year looks like in Belle Chasse, Louisiana: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at New Orleans Audubon, 14 km from Belle Chasse; records cover 1893–2026.
The year at a glance
- Precipitation a year
- 64.6 in1641 mm
- Snow a year
- Rare
- Last spring freeze
- Jan 25
- First fall freeze
- Dec 14
- Heating degree days
- 1,019
- Cooling degree days
- 3,518
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 32°0° (heating, 99%) and 98°37° (cooling, 1%).
Month by month
Belle Chasse in January
Highs average 64°18° and lows 47°8°, with 5 in126 mm of precipitation in a typical January.
- Record high
- 84°29° (1952)
- Record low
- 13°−11° (1962)
- Heating degree days
- 316
- Cooling degree days
- 19
Belle Chasse in February
Highs average 68°20° and lows 51°10°, with 4.1 in105 mm of precipitation in a typical February.
- Record high
- 86°30° (2018)
- Record low
- 6°−14° (1899)
- Heating degree days
- 194
- Cooling degree days
- 38
Belle Chasse in March
Highs average 75°24° and lows 56°13°, with 4.6 in117 mm of precipitation in a typical March.
- Record high
- 91°33° (1929)
- Record low
- 26°−3° (1932)
- Heating degree days
- 93
- Cooling degree days
- 97
Belle Chasse in April
Highs average 81°27° and lows 62°17°, with 5 in127 mm of precipitation in a typical April.
- Record high
- 93°34° (1987)
- Record low
- 32°0° (1915)
- Heating degree days
- 19
- Cooling degree days
- 212
Belle Chasse in May
Highs average 88°31° and lows 69°21°, with 5.4 in137 mm of precipitation in a typical May.
- Record high
- 99°37° (1911)
- Record low
- 46°8° (1908)
- Heating degree days
- 0
- Cooling degree days
- 422
Belle Chasse in June
Highs average 93°34° and lows 75°24°, with 7.4 in187 mm of precipitation in a typical June.
- Record high
- 104°40° (2009)
- Record low
- 54°12° (1984)
- Heating degree days
- 0
- Cooling degree days
- 561
Belle Chasse in July
Highs average 94°34° and lows 77°25°, with 8.8 in223 mm of precipitation in a typical July.
- Record high
- 102°39° (1939)
- Record low
- 61°16° (1918)
- Heating degree days
- 0
- Cooling degree days
- 628
Belle Chasse in August
Highs average 94°34° and lows 77°25°, with 6.8 in173 mm of precipitation in a typical August.
- Record high
- 104°40° (2023)
- Record low
- 60°16° (1927)
- Heating degree days
- 0
- Cooling degree days
- 634
Belle Chasse in September
Highs average 90°32° and lows 74°23°, with 5.7 in145 mm of precipitation in a typical September.
- Record high
- 101°38° (1940)
- Record low
- 49°9° (1913)
- Heating degree days
- 0
- Cooling degree days
- 506
Belle Chasse in OctoberThis month
Highs average 83°28° and lows 65°18°, with 3.6 in91 mm of precipitation in a typical October.
- Record high
- 97°36° (1990)
- Record low
- 35°2° (1910)
- Heating degree days
- 15
- Cooling degree days
- 283
Belle Chasse in November
Highs average 73°23° and lows 55°13°, with 3.8 in96 mm of precipitation in a typical November.
- Record high
- 92°33° (1936)
- Record low
- 26°−3° (1940)
- Heating degree days
- 123
- Cooling degree days
- 85
Belle Chasse in December
Highs average 66°19° and lows 49°9°, with 4.5 in115 mm of precipitation in a typical December.
- Record high
- 85°29° (1939)
- Record low
- 12°−11° (1989)
- Heating degree days
- 259
- Cooling degree days
- 33