Yamhill County Climate
Yamhill County, Oregon
Avg Annual Temp
53.2°F
Annual Precip
52.3"
Annual Snowfall
7.2"
Extreme Heat Days
17.666666666666664
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Yamhill County Weather
A Classic Maritime Climate Profile
Yamhill County’s 53.2°F average annual temperature sits right at the national median. The region is defined by a Mediterranean-style cycle of wet winters and dry, warm summers.
Warm and Exceptionally Wet
The county is nearly 3 degrees warmer than the Oregon state average of 50.5°F. It is significantly wetter than the rest of the state, averaging 52.3 inches of rain compared to the 37.4-inch state average.
The Heart of Wine Country Weather
Yamhill is notably wetter than its neighbor Washington County, receiving about 11 more inches of rain per year. This extra moisture and mild 53.2°F temperature make it a premier region for viticulture.
Lush Winters and Mild Harvest Summers
July is comfortable at 68.0°F with 18 days of extreme heat annually. Winters are chilly and damp, averaging 41.3°F and producing 7.2 inches of snowfall alongside heavy seasonal rains.
Prepare for Persistent Seasonal Rainfall
Invest in heavy-duty rain gear and ensure your property has excellent drainage to handle 52.3 inches of rain. While winters average 41.3°F, keep a shovel ready for the 7.2 inches of snow that usually arrives.
Frequently Asked Questions
What is the average temperature in Yamhill County?
How much rain does Yamhill County get?
Does it snow in Yamhill County?
How hot does Yamhill County get in summer?
How cold are winters in Yamhill County?
Track your own weather in Yamhill County
Ambient Weather personal weather stations give you hyperlocal climate data.
Sponsored
Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.