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Gilliam, LA Weather


Gilliam, LA climate is hot during summer when temperatures tend to be in the 80's and cold during winter when temperatures tend to be in the 40's.

The warmest month of the year is August with an average maximum temperature of 9.99 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 9.99 degrees Fahrenheit.

Temperature variations between night and day tend to be moderate during summer with a difference that can reach 24 degrees Fahrenheit, and moderate during winter with an average difference of 25 degrees Fahrenheit.

The annual average precipitation at Gilliam is 9.99 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is November with an average rainfall of 5.17 Inches.

Weather Data

Normal Climate

Normal Temperatures

(PLAIN DEALING Weather station, 9.82 miles from Gilliam)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max °F 54.8 60.4 68.4 75.7 82.3 89.1 93.1 93.3 87.3 77.6 65.9 57.4 75.4
Mean °F 43.1 47.5 55.1 62.3 70.5 77.7 81.5 81.0 74.9 64.0 53.5 45.5 63.1
Min °F 31.4 34.6 41.8 48.8 58.6 66.2 69.8 68.7 62.5 50.3 41.0 33.6 50.6

Normal Precipitation

(HOSSTON Weather station, 4.19 miles from Gilliam)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Inch 4.21 3.99 4.35 4.07 4.38 4.87 3.08 3.24 2.90 4.25 5.17 4.83 9.99