Photo: Visitor7 · CC BY-SA 3.0Winter nights in Roseburg are milder than in 84% of U.S. towns
July afternoons average 86°. By precipitation alone, it ranks drier than 80% of U.S. towns. August has warmed most since 1901–2000, part of a 1.8° rise. The heating season runs November to March: each of those months averages under 50°.
A year in Roseburg at a glance
Each month’s typical high and low, and what it brings.
What stands out about Roseburg’s climate
Compared with towns across the U.S., with Roseburg’s place in Oregon beside it.
What a year in Roseburg feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 237 frost-free days a year
In half of years the last 32° night comes by March 23 and the first by November 18. Frost and day counts come from NOAA’s station at Roseburg Kqen, OR, 1.0 miles from the town’s center, 100 ft lower.
The 2023 USDA map puts Roseburg’s center in zone 9a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 21°. 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 34 inches of rain a year
December is the wettest month and July the driest. Rain falls on about 138 days a year. Snow is rare: about 0.0" in a normal year at Roseburg Kqen, OR, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Roseburg
85% of the work is heating. Months averaging under 55° run from November 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 Roseburg Kqen, OR.
Living with Roseburg’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
237 frost-free days in zone 9a. The last frost comes by Mar 23 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 18.
Months with highs of 62–84° and lows of 40° or more: April, May, June, September and October. 5.9 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Roseburg from natural hazards, river flooding is the largest share (63%); heat waves, cold waves, winter storms and ice storms together are 4%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Roseburg and similar climates
TownRatings has no climate map of the towns around Roseburg yet.
Climates most like Roseburg’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 |
|---|---|---|---|---|
| Roseburg, OR | 37° | 86° | 34" | 0.0" |
| Windsor, CA | 38° | 85° | 35" | 0.0" |
| Rock Hill, SC | 31° | 90° | 44" | 0.2" |
| Marvin, NC | 31° | 91° | 43" | 0.2" |
| Felida, WA | 35° | 81° | 42" | 0.8" |
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 Roseburg averaged 1.8° warmer than the 1900s. The biggest change is in August (+2.9°).
A bigger shift than in 79% 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 Roseburg compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Roseburg’s place among Oregon’s.
Roseburg weather by month
Highs, lows and precipitation from NOAA’s grid at Roseburg’s center; snow, wet days and snow on the ground from Roseburg Kqen, OR. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 50° | 37° | 5.1" | 0.0" | 18 | 0 | 39° – 49° |
| February | 54° | 37° | 3.7" | 0.0" | 16 | 0 | 40° – 51° |
| March | 59° | 38° | 3.8" | 0.0" | 17 | 0 | 45° – 54° |
| April | 64° | 41° | 2.9" | 0.0" | 16 | 0 | 48° – 58° |
| May | 71° | 46° | 2.0" | 0.0" | 10 | 0 | 54° – 63° |
| June | 77° | 51° | 1.0" | 0.0" | 6 | 0 | 60° – 71° |
| July | 86° | 56° | 0.3" | 0.0" | 2 | 0 | 64° – 75° |
| August | 86° | 55° | 0.3" | 0.0" | 2 | 0 | 67° – 75° |
| September | 81° | 50° | 0.9" | 0.0" | 4 | 0 | 62° – 68° |
| October | 68° | 44° | 2.4" | 0.0" | 11 | 0 | 51° – 61° |
| November | 55° | 40° | 4.9" | 0.0" | 18 | 0 | 42° – 52° |
| December | 48° | 36° | 6.4" | 0.0" | 19 | 0 | 36° – 47° |
| Year | 67° | 44° | 33.6" | 0.0" | 138 | 0 |
How much a month can swing
A normal is an average. July swings the most: from 1991 to 2020 its average ranged from 64° to 75°. September is the most reliable, staying within 6°.
Where Roseburg’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 Roseburg’s center.
- Snow: Roseburg Kqen, OR (NOAA station in town).
- Frost, freezing nights, 90° and 100° days, heating and cooling: Roseburg Kqen, OR, 1.0 miles from the town’s center, 100 ft lower; 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 Roseburg’s climate
What is the weather like in Roseburg?
A typical July afternoon reaches 86°, a January night drops to 37°, and snow is almost unheard of. Milder January nights than 84% of U.S. towns; hotter July afternoons than 55% of U.S. towns.
How cold does it get in Roseburg in winter?
December nights average 36°. About 29 nights a year reach 32° or below. In the coldest December of the last 30 years the month averaged 36°.
How much snow does Roseburg get?
About 0.0 inches in a normal winter at Roseburg Kqen, OR, so most winters see none.
How hot does it get in Roseburg?
July, with a typical high of 86° and a low of 56°. About 42 days a year reach 90° and 6 reach 100° (Roseburg Kqen, OR).
When is the first and last frost in Roseburg?
In half of years the last spring frost (32°) comes by March 23 and the first fall frost by November 18, about 237 frost-free days, at Roseburg Kqen, OR.
What growing zone is Roseburg in?
Zone 9a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 21°.
What is the best time of year to visit Roseburg?
By one simple rule (highs of 62–84° and lows of 40° or more), April, May, June, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Roseburg getting warmer?
Yes: 1991–2020 averaged 1.8° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 79% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Roseburg.
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.