Portland Kgw-tv, OR Climate

Climate Insight: Portland Kgw-tv, OR

Portland Kgw-tv, Oregon runs an annual average of 55°F, ranging from a mean daily high of 63°F to a mean daily low of 47°F, per NOAA's 1991–2020 climate normals. August is typically the warmest month of the year, while December is the coldest. Drawn from station USC00356749, these thirty-year averages smooth out year-to-year swings into a baseline for what a typical month looks like here.

Portland Kgw-tv averages 44.1 inches of precipitation a year, with 3.6 inches typically falling as snow, and that matters as much to daily life here as temperature does. The frost-free season averages 279 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near February 25 and the first fall freeze near December 1. As for energy demand, 4,167 heating degree days and 448 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Portland Kgw-tv scores 77/100 (Good), 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.