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United States › Louisiana › Plaquemines Parish › Climate Station BOOTHVILLE ASOS, LA US Distance 10.7 mi Normals 1991–2020

30-year climate normals

Plaquemines Parish Climate and Weather Averages

Hottest month — August

88.8°

average daily high. The coldest month is January, averaging a low of 47.5°F.

Plaquemines Parish gets 53.88" of precipitation a year, and 34% of it falls in Jun, Jul, Aug.

Temperature through the year

Each bar spans the average daily low to the average daily high for that month.

60° 80° JanFebMarAprMayJunJulAugSepOctNovDec
MonthAvg highAvg low Precip
January 62.0° 47.5° 4.45"
February 65.1° 50.1° 3.00"
March 69.9° 55.3° 5.23"
April 75.8° 62.0° 4.29"
May 81.9° 70.1° 3.63"
June 87.4° 75.9° 4.60"
July 88.7° 77.7° 6.38"
August 88.8° 78.0° 7.22"
September 86.3° 75.6° 4.10"
October 79.2° 67.6° 4.05"
November 70.5° 57.5° 2.84"
December 64.2° 51.2° 4.09"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 34% falling in the wettest three months (Jun, Jul, Aug).

January 4.45"
February 3.00"
March 5.23"
April 4.29"
May 3.63"
June 4.60"
July 6.38"
August 7.22"
September 4.10"
October 4.05"
November 2.84"
December 4.09"
Annual total 53.88"

What this climate costs you

Degree days measure how hard a building has to work to stay comfortable. They are the reason two identical houses have very different power bills, and they are the link between the weather here and what you pay every month.

Cooling degree days How much air conditioning the climate demands 3,048
Heating degree days How much heating the climate demands 1,072
Approximate annual cooling cost At 14.15¢/kWh, Louisiana average $431
Approximate annual electric heating cost Lower where heating is gas rather than electric $53

These are rough planning figures from degree days and the state electricity price, not a bill estimate. House size, insulation and fuel type move them a lot. See the full cost of owning a home in Plaquemines Parish, where electricity is one line of eight.

Common questions

What is the weather like in Plaquemines Parish?

Plaquemines Parish averages a high of 88.8°F in August and a low of 47.5°F in January. Annual precipitation is 53.88 inches, with essentially no snow.

When is the rainy season in Plaquemines Parish?

The wettest stretch is Jun, Jul, Aug, which accounts for 34% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Plaquemines Parish?

The average daily high in August, the hottest month, is 88.8°F. That drives 3,048 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Plaquemines Parish?

Effectively no. Measurable snowfall is rare in Plaquemines Parish.

Sources

  • Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station BOOTHVILLE ASOS, LA US (USW00012884), 10.7 miles from the county centroid.
  • Heating and cooling degree days — NOAA, same station and period.
  • Electricity price — US Energy Information Administration, Electric Power Monthly Table 5.6.A, Louisiana residential average.
  • Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.