Moro is a city in Sherman County, Oregon, United States.

[7] According to the United States Census Bureau, the city has a total area of 0.49 square miles (1.27 km2), all of it land.

[8] Moro has a Mediterranean climate (Köppen Csb) with hot, dry summers with cool mornings, and chilly, wetter winters.

During the summer, afternoons are very warm to hot and generally very clear: the median rainfall is only 0.11 inches or 2.8 millimetres in August and 0.13 inches or 3.3 millimetres in July, and more than one-fifth of months in this period have no more than a trace of rain.

Temperatures will reach 90 °F or 32.2 °C on an average of twenty afternoons, though 100 °F or 37.8 °C can be expected only twice each year.

Summer mornings are comfortable: as early as August 29, 1980 temperatures of 31 °F (−0.6 °C) were reported.

Winters are cold if not usually severe: maxima top freezing on all but twenty afternoons and only two mornings each winter will fall to or below 0 °F or −17.8 °C, with the coldest temperature being −22 °F (−30 °C) on January 26 and 27 of 1957, and the coldest maximum temperature −7 °F (−21.7 °C) on December 31, 1968.

Precipitation is very low due to the rain shadow of the Cascades and the valley location, being around 4 inches or 100 millimetres lower than even the driest areas in the Olympic rain shadow like Sequim.

36.2% of all households were made up of individuals, and 18.2% had someone living alone who was 65 years of age or older.