Lebanon, MO Climate

Climate Insight: Lebanon, MO

In Lebanon, Missouri, the NOAA 1991–2020 climate normals put the annual average temperature at 56°F, ranging from a mean daily high of 67°F to a mean daily low of 45°F. July is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USC00234825, these numbers smooth out year-to-year noise into a working baseline for a typical month.

Lebanon averages 45.9 inches of precipitation a year, with 8.3 inches typically falling as snow, and that matters as much to daily life here as temperature does. The frost-free season averages 187 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 17 and the first fall freeze near October 21. As for energy demand, 4,618 heating degree days and 1,316 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Lebanon scores 78/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Shoulder seasons bring the mildest highs and lows in the monthly tables above, summer brings July-driven heat, and winter brings January-driven cold - use that rhythm for planning. These figures are thirty-year averages rather than forecasts, so a specific year may still run warmer, cooler, wetter, or drier than what's shown.