Howard Prairie Dam, OR Climate

Climate Insight: Howard Prairie Dam, OR

An annual average temperature of 44°F, ranging from a mean daily high of 55°F to a mean daily low of 33°F is what the NOAA 1991–2020 climate normals report for Howard Prairie Dam, Oregon. July is typically the warmest month of the year, while December is the coldest. That baseline comes from station USC00354060 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.

Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. Howard Prairie Dam sees about 31.3 inches of precipitation a year, with 117.6 inches typically falling as snow. The frost-free season averages 108 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near June 8 and the first fall freeze near September 24. On the energy side, 7,688 heating degree days and 89 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Howard Prairie Dam scores 44/100 (Moderate), 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 July-driven heat, and deep winter brings December-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.