Photo: M.O. Stevens · Public domainJuly in Yamhill stays fresher than in 84% of U.S. towns
Nights in January average 35°. By January nights alone, it runs milder than 81% of U.S. towns. Decade by decade the climate has edged up, 1.2° above 1901–2000. Tender plants can go out after about April 5; in half of years the first frost comes by November 7.
A year in Yamhill at a glance
Each month’s typical high and low, and what it brings.
What stands out about Yamhill’s climate
Compared with towns across the U.S., with Yamhill’s place in Oregon beside it.
What a year in Yamhill feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 216 frost-free days a year
In half of years the last 32° night comes by April 5 and the first by November 7. Frost and day counts come from NOAA’s station at Mc Minnville, OR, 8 miles from the town’s center, at about the same height.
The 2023 USDA map puts Yamhill’s center in zone 8b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 20°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 13 inches of snow a winter
Snow, measured at Haskins Dam, OR, falls mostly in December. Precipitation (rain plus melted snow) adds up to 44 inches a year; December is the wettest month and July the driest. Rain or snow falls on about 177 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Yamhill
92% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through April.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Mc Minnville, OR.
Living with Yamhill’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
216 frost-free days in zone 8b. The last frost comes by Apr 5 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Nov 7.
Months with highs of 62–84° and lows of 40° or more: May, June, July, August, September and October. 0.3 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Yamhill from natural hazards, earthquakes are the largest share (50%); heat waves, cold waves, winter storms and ice storms together are 6%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Yamhill and similar climates
TownRatings has no climate map of the towns around Yamhill yet.
Climates most like Yamhill’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Yamhill, OR | 35° | 82° | 44" | 13" |
| Atlantic City, NJ | 28° | 83° | 45" | 17" |
| Ocean City, MD | 30° | 86° | 46" | 10" |
| Fletcher, NC | 27° | 84° | 50" | 10" |
| Galax, VA | 25° | 82° | 48" | 17" |
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in Yamhill averaged 1.2° warmer than the 1900s. The biggest change is in January (+2.8°).
A smaller shift than in 62% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Yamhill compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Yamhill’s place among Oregon’s.
Yamhill weather by month
Highs, lows and precipitation from NOAA’s grid at Yamhill’s center; snow, wet days and snow on the ground from Haskins Dam, OR. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 47° | 35° | 6.8" | 3.9" | 22 | 5 | 35° – 45° |
| February | 51° | 36° | 5.2" | 3.0" | 18 | 2 | 37° – 49° |
| March | 56° | 38° | 4.7" | 1.3" | 22 | 1 | 43° – 52° |
| April | 61° | 40° | 3.4" | 0.1" | 19 | 0 | 46° – 56° |
| May | 68° | 46° | 2.0" | 0.0" | 13 | 0 | 51° – 61° |
| June | 73° | 49° | 1.2" | 0.0" | 9 | 0 | 58° – 68° |
| July | 82° | 53° | 0.3" | 0.0" | 3 | 0 | 61° – 71° |
| August | 82° | 53° | 0.4" | 0.0" | 4 | 0 | 64° – 71° |
| September | 76° | 50° | 1.3" | 0.0" | 8 | 0 | 59° – 66° |
| October | 64° | 43° | 3.6" | 0.0" | 16 | 0 | 50° – 59° |
| November | 52° | 39° | 6.7" | 0.5" | 22 | 1 | 40° – 50° |
| December | 46° | 34° | 8.9" | 4.5" | 22 | 2 | 36° – 44° |
| Year | 63° | 43° | 44.4" | 13.3" | 177 | 10 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 37° to 49°. September is the most reliable, staying within 7°.
Where Yamhill’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Yamhill’s center.
- Snow: Haskins Dam, OR.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Mc Minnville, OR, 8 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Yamhill’s climate
What is the weather like in Yamhill?
A typical July afternoon reaches 82°, a January night drops to 35°, and about 13 inches of snow falls in a normal winter. Milder January nights than 81% of U.S. towns; cooler July afternoons than 84% of U.S. towns.
How cold does it get in Yamhill in winter?
December nights average 34°. About 46 nights a year reach 32° or below. In the coldest December of the last 30 years the month averaged 36°.
How much snow does Yamhill get?
About 13 inches in a normal winter at Haskins Dam, OR, most of it in December, with snow on the ground about 10 days a year.
How hot does it get in Yamhill?
July, with a typical high of 82° and a low of 53°. About 19 days a year reach 90° and 2 reach 100° (Mc Minnville, OR).
When is the first and last frost in Yamhill?
In half of years the last spring frost (32°) comes by April 5 and the first fall frost by November 7, about 216 frost-free days, at Mc Minnville, OR.
What growing zone is Yamhill in?
Zone 8b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 20°.
What is the best time of year to visit Yamhill?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, July, August, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Yamhill getting warmer?
Yes: 1991–2020 averaged 1.2° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 62% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Yamhill.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.