30-year climate normals

Ouachita Parish Climate and Weather Averages

Hottest month — August

93.6°

average daily high. The coldest month is January, averaging a low of 36.7°F.

Ouachita Parish gets 55.1" of precipitation a year, and 28% of it falls in Feb, Mar, Apr.

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	57.0°	36.7°	5.15"
February	61.1°	40.2°	4.65"
March	69.1°	47.2°	5.21"
April	76.8°	54.2°	5.83"
May	84.4°	63.1°	4.43"
June	90.5°	70.1°	4.45"
July	93.2°	72.5°	3.94"
August	93.6°	71.4°	3.56"
September	88.7°	65.5°	3.55"
October	78.8°	53.7°	4.95"
November	67.3°	43.9°	4.16"
December	59.0°	38.6°	5.22"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 28% falling in the wettest three months (Feb, Mar, Apr).

January 5.15"

February 4.65"

March 5.21"

April 5.83"

May 4.43"

June 4.45"

July 3.94"

August 3.56"

September 3.55"

October 4.95"

November 4.16"

December 5.22"

Annual total 55.1"

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 2,495

Heating degree days How much heating the climate demands 2,213

Approximate annual cooling cost At 14.15¢/kWh, Louisiana average $353

Approximate annual electric heating cost Lower where heating is gas rather than electric $110

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 Ouachita Parish, where electricity is one line of eight.

Common questions

What is the weather like in Ouachita Parish?

Ouachita Parish averages a high of 93.6°F in August and a low of 36.7°F in January. Annual precipitation is 55.1 inches, with essentially no snow.

When is the rainy season in Ouachita Parish?

The wettest stretch is Feb, Mar, Apr, which accounts for 28% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Ouachita Parish?

The average daily high in August, the hottest month, is 93.6°F. That drives 2,495 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Ouachita Parish?

Effectively no. Measurable snowfall is rare in Ouachita Parish.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station MONROE RGNL AP, LA US (USW00013942), 6.9 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.