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Yamhill County, OR (shown in white) has 715.94 mi² of land area and 2.46 mi² of water resources. The county is bordered by:
The county's elevations range from a low of 42.6' to a high of 3,356.3', with a weighted average of 691.3' above sea level.
Temperatures range from average lows around 33.2°F to average highs around 83.2°F. A year-round daily temperature averages 52.6°F. Average annual precipation is 54". With these temperatures and precipation, the majority of the county scores as an 8B using the USDA Plant Hardiness Zone Map (the standard by which gardeners and growers can determine which perennial plants are most likely to thrive in a location).
The estimated population of Yamhill County is 110,882 with 39,221 households. These households are spread across 10 unique municipalties (not all shown).
