Galliano, LA Climate

Climate Insight: Galliano, LA

An annual average temperature of 69°F, ranging from a mean daily high of 77°F to a mean daily low of 61°F is what the NOAA 1991–2020 climate normals report for Galliano, Louisiana. August is typically the warmest month of the year, while January is the coldest. That baseline comes from station USC00163433 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.

Galliano averages 66.7 inches of precipitation a year, with negligible snowfall, and that matters as much to daily life here as temperature does. The frost-free season averages 314 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near February 8 and the first fall freeze near December 19. As for energy demand, 1,267 heating degree days and 2,886 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Galliano scores 80/100 (Excellent), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. For planning purposes, look to the monthly tables above: shoulder seasons bring the mildest highs and lows, summer brings August-driven heat, and deep winter brings January-driven cold. Treat every figure here as a thirty-year average rather than a forecast - individual years routinely run warmer, cooler, wetter, or drier than the normal.