Brookings, OR Climate

Climate Insight: Brookings, OR

In Brookings, Oregon, the NOAA 1991–2020 climate normals put the annual average temperature at 54°F, ranging from a mean daily high of 60°F to a mean daily low of 48°F. August is typically the warmest month of the year, while December is the coldest. As thirty-year averages computed from 2 weather stations, these numbers smooth out year-to-year noise into a working baseline for a typical month.

Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. Brookings sees about 77.6 inches of precipitation a year, predominantly as rainfall. The frost-free season averages 330 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near January 31 and the first fall freeze near December 27. On the energy side, 4,080 heating degree days and 28 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Brookings scores 55/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above turn that into a planning tool: expect the mildest highs and lows in the shoulder seasons, August-driven heat at the peak of summer, and December-driven cold at the depth of winter. Every number here is a thirty-year average, not a forecast, so any given year can and does run warmer, cooler, wetter, or drier than the normal.