Photo: Sword Fern · CC BY-SA 3.0Holley gets more rain and snow than 89% of U.S. towns: 52 inches of precipitation a year
In July the day’s top temperature is typically 82°. Summers stay cool: July afternoons here are cooler than in 84% of U.S. towns. Warming shows here too: 1.1° more than in 1901–2000, led by January. The frost-free window for a garden runs roughly April 12 to October 28.
A year in Holley at a glance
Each month’s typical high and low, and what it brings.
What stands out about Holley’s climate
Compared with towns across the U.S., with Holley’s place in Oregon beside it.
What a year in Holley feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 197 frost-free days a year
In half of years the last 32° night comes by April 12 and the first by October 28. Frost and day counts come from NOAA’s station at Foster Dam, OR, 7 miles from the town’s center, at about the same height.
The 2023 USDA map puts Holley’s center in zone 8b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 18°. 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 1 inches of snow a winter
Snow, measured at Holley, OR, falls mostly in February. Precipitation (rain plus melted snow) adds up to 52 inches a year; December is the wettest month and July the driest. Rain or snow falls on about 191 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Holley
95% 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 Foster Dam, OR.
Living with Holley’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
197 frost-free days in zone 8b. The last frost comes by Apr 12 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 28.
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 Holley from natural hazards, river flooding is the largest share (82%); heat waves, cold waves, winter storms and ice storms together are 5%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Holley and similar climates
TownRatings has no climate map of the towns around Holley yet.
Climates most like Holley’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 |
|---|---|---|---|---|
| Holley, OR | 35° | 82° | 52" | 1.2" |
| Rochester, WA | 34° | 78° | 50" | 3.9" |
| Black Mountain, NC | 27° | 82° | 57" | 2.1" |
| Fairfield Glade, TN | 27° | 84° | 57" | 4.9" |
| Ben Lomond, CA | 40° | 79° | 43" | 0.0" |
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 Holley averaged 1.1° warmer than the 1900s. The biggest change is in January (+2.8°).
A smaller shift than in 67% 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 Holley compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Holley’s place among Oregon’s.
Holley weather by month
Highs, lows and precipitation from NOAA’s grid at Holley’s center; snow, wet days and snow on the ground from Holley, OR. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 48° | 35° | 7.2" | 0.1" | 23 | 0 | 36° – 46° |
| February | 51° | 35° | 5.6" | 1.0" | 20 | 0 | 36° – 49° |
| March | 56° | 37° | 6.1" | 0.0" | 22 | 0 | 43° – 52° |
| April | 60° | 39° | 4.9" | 0.0" | 20 | 0 | 45° – 55° |
| May | 67° | 44° | 3.3" | 0.0" | 16 | 0 | 51° – 61° |
| June | 73° | 48° | 2.1" | 0.0" | 11 | 0 | 57° – 67° |
| July | 82° | 52° | 0.4" | 0.0" | 4 | 0 | 61° – 70° |
| August | 82° | 51° | 0.6" | 0.0" | 4 | 0 | 63° – 71° |
| September | 76° | 48° | 1.8" | 0.0" | 8 | 0 | 59° – 65° |
| October | 63° | 43° | 4.4" | 0.0" | 17 | 0 | 49° – 58° |
| November | 53° | 38° | 7.4" | 0.0" | 23 | 0 | 39° – 50° |
| December | 46° | 35° | 8.5" | 0.1" | 25 | 0 | 36° – 44° |
| Year | 63° | 42° | 52.2" | 1.2" | 191 | 1 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 36° to 49°. September is the most reliable, staying within 6°.
Where Holley’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 Holley’s center.
- Snow: Holley, OR (NOAA station in town).
- Frost, freezing nights, 90° and 100° days, heating and cooling: Foster Dam, OR, 7 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 Holley’s climate
What is the weather like in Holley?
A typical July afternoon reaches 82°, a January night drops to 35°, and about 1 inches of snow falls in a normal winter. Milder January nights than 80% of U.S. towns; cooler July afternoons than 84% of U.S. towns.
How cold does it get in Holley in winter?
December nights average 35°. About 55 nights a year reach 32° or below. In the coldest December of the last 30 years the month averaged 36°.
How much snow does Holley get?
About 1.2 inches in a normal winter at Holley, OR, most of it in February, with snow on the ground about 1 days a year.
How hot does it get in Holley?
July, with a typical high of 82° and a low of 52°. About 17 days a year reach 90° and 1 reach 100° (Foster Dam, OR).
When is the first and last frost in Holley?
In half of years the last spring frost (32°) comes by April 12 and the first fall frost by October 28, about 197 frost-free days, at Foster Dam, OR.
What growing zone is Holley in?
Zone 8b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 18°.
What is the best time of year to visit Holley?
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 Holley getting warmer?
Yes: 1991–2020 averaged 1.1° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 67% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Holley.
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.