30-year climate normals

Vermilion Parish Climate and Weather Averages

Hottest month — August

90.2°

average daily high. The coldest month is January, averaging a low of 40.8°F.

Vermilion Parish gets 64.09" 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.

Month	Avg high	Avg low	Precip
January	59.6°	40.8°	5.43"
February	63.3°	44.8°	4.02"
March	69.3°	51.4°	3.60"
April	75.1°	57.8°	5.47"
May	82.0°	66.1°	4.27"
June	87.7°	71.9°	6.91"
July	89.5°	73.4°	8.09"
August	90.2°	72.7°	6.76"
September	86.8°	68.8°	6.27"
October	79.5°	58.5°	4.18"
November	69.2°	49.0°	4.72"
December	61.9°	43.2°	4.37"

Rainfall by month

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

January 5.43"

February 4.02"

March 3.60"

April 5.47"

May 4.27"

June 6.91"

July 8.09"

August 6.76"

September 6.27"

October 4.18"

November 4.72"

December 4.37"

Annual total 64.09"

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 2,491

Heating degree days How much heating the climate demands 1,668

Approximate annual cooling cost At 14.15¢/kWh, Louisiana average $352

Approximate annual electric heating cost Lower where heating is gas rather than electric $83

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 Vermilion Parish, where electricity is one line of eight.

Common questions

What is the weather like in Vermilion Parish?

Vermilion Parish averages a high of 90.2°F in August and a low of 40.8°F in January. Annual precipitation is 64.09 inches, with essentially no snow.

When is the rainy season in Vermilion 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 Vermilion Parish?

The average daily high in August, the hottest month, is 90.2°F. That drives 2,491 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Vermilion Parish?

Effectively no. Measurable snowfall is rare in Vermilion Parish.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station LELAND BOWMAN LOCK, LA US (USC00165296), 7.1 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.