Photo: Visitor7 · CC BY-SA 3.0Yoncalla’s winters are milder and less snowy than most of the U.S.
A typical July afternoon reaches 83°, a January night drops to 36°, and snow is almost unheard of.
A year in Yoncalla at a glance
Each month’s typical high and low, and what it brings.
What stands out about Yoncalla’s climate
Compared with towns across the U.S., with Yoncalla’s place in Oregon beside it.
What a year in Yoncalla feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 193 frost-free days a year
In half of years the last 32° night comes by April 16 and the first by October 25. Frost and day counts come from NOAA’s station at Drain, OR, 4 miles from the town’s center, at about the same height.
The 2023 USDA map puts Yoncalla’s center in zone 8b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 19°. 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 47 inches of rain a year
December is the wettest month and July the driest. Rain falls on about 158 days a year. Snow is rare: about 0.0" in a normal year at Drain, OR, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Yoncalla
93% 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 Drain, OR.
Living with Yoncalla’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
193 frost-free days in zone 8b. The last frost comes by Apr 16 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 25.
Months with highs of 62–84° and lows of 40° or more: May, June, July, August, September and October.
Parks & trails →Of the yearly building losses FEMA expects in Yoncalla from natural hazards, river flooding is the largest share (43%); heat waves, cold waves, winter storms and ice storms together are 3%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Yoncalla and similar climates
TownRatings has no climate map of the towns around Yoncalla yet.
Climates most like Yoncalla’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 |
|---|---|---|---|---|
| Yoncalla, OR | 36° | 83° | 47" | 0.0" |
| Healdsburg, CA | 38° | 85° | 41" | 0.0" |
| Kill Devil Hills, NC | 35° | 86° | 50" | 1.1" |
| Ridgefield, WA | 35° | 80° | 45" | 3.0" |
| Virginia Beach, VA | 32° | 87° | 48" | 3.4" |
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 Yoncalla averaged 1.3° warmer than the 1900s. The biggest change is in January (+2.3°).
A smaller shift than in 58% 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 Yoncalla compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Yoncalla’s place among Oregon’s.
Yoncalla weather by month
Highs, lows and precipitation from NOAA’s grid at Yoncalla’s center; snow, wet days and snow on the ground from Drain, OR. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 48° | 36° | 6.9" | 0.0" | 20 | 0 | 37° – 47° |
| February | 52° | 36° | 5.1" | 0.0" | 17 | 0 | 37° – 50° |
| March | 57° | 38° | 5.3" | 0.0" | 19 | 0 | 43° – 55° |
| April | 62° | 40° | 4.1" | 0.0" | 17 | 0 | 47° – 55° |
| May | 69° | 45° | 2.8" | 0.0" | 12 | 0 | 52° – 63° |
| June | 74° | 49° | 1.4" | 0.0" | 8 | 0 | 58° – 68° |
| July | 83° | 53° | 0.4" | 0.0" | 2 | 0 | 62° – 71° |
| August | 83° | 53° | 0.4" | 0.0" | 3 | 0 | 65° – 71° |
| September | 78° | 49° | 1.4" | 0.0" | 6 | 0 | 61° – 67° |
| October | 65° | 44° | 3.7" | 0.0" | 13 | 0 | 50° – 60° |
| November | 53° | 40° | 6.8" | 0.0" | 20 | 0 | 41° – 51° |
| December | 47° | 36° | 8.4" | 0.0" | 20 | 0 | 35° – 45° |
| Year | 64° | 43° | 46.6" | 0.0" | 158 | 1 |
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 50°. September is the most reliable, staying within 6°.
Where Yoncalla’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 Yoncalla’s center.
- Snow: Drain, OR.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Drain, OR, 4 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 Yoncalla’s climate
What is the weather like in Yoncalla?
A typical July afternoon reaches 83°, a January night drops to 36°, and snow is almost unheard of. Milder January nights than 83% of U.S. towns; cooler July afternoons than 70% of U.S. towns.
How cold does it get in Yoncalla in winter?
December nights average 36°. About 41 nights a year reach 32° or below. In the coldest December of the last 30 years the month averaged 35°.
How much snow does Yoncalla get?
About 0.0 inches in a normal winter at Drain, OR, so most winters see none.
How hot does it get in Yoncalla?
July, with a typical high of 83° and a low of 53°. About 26 days a year reach 90° and 2 reach 100° (Drain, OR).
When is the first and last frost in Yoncalla?
In half of years the last spring frost (32°) comes by April 16 and the first fall frost by October 25, about 193 frost-free days, at Drain, OR.
What growing zone is Yoncalla in?
Zone 8b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 19°.
What is the best time of year to visit Yoncalla?
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 Yoncalla getting warmer?
Yes: 1991–2020 averaged 1.3° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 58% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Yoncalla.
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.