Roseburg Rgnl, OR Climate: Temperature & Rain by Month
Average temperature and precipitation from NOAA NCEI 1991–2020 normals →, with a derived climate comfort score
30-year climate normals (1991-2020) from Roseburg Rgnl's primary NOAA station, ROSEBURG RGNL AP.
The climate verdict for Roseburg Rgnl
A compact 29.1°F seasonal swing gives Roseburg Rgnl, Oregon a steadier-than-extreme annual shape. NOAA reports an annual average of 56°F. It scores 85/100 for climate comfort (excellent), putting it in the top third of station-mapped location scores and exceeding 85% of them.
- 56°F
- average temperature, NOAA 1991-2020 normal
- 85/100
- comfort score, above 85% of station-mapped location scores
- 32.1"
- yearly precipitation total
- 246 days
- growing season, frost-free days
Roseburg Rgnl: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USW00024231 · Roseburg Rgnl, OR 56°F mean · 32.1" precip
TEMP-MILD · RANK-UPPER · PHOTO-FINISH · PRCP-MID · SWING-NARROW · COMF-TOP · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-MILD 56°F
- RANK-UPPER #4,322
- PHOTO-FINISH ≈ Illahe
- PRCP-MID 32.1"
- SWING-NARROW 29°F
- COMF-TOP 85/100
- LOAD-HEAT 3,913 HDD
- STN-1 USW00024231
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Illahe, OR (+ 0 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every OR station list.
- Roseburg Rgnl (this station) 56°F
- Hot Illahe, OR 56°F
- Near Covelo, CA 56°F
- Near Kitt Peak, AZ 56°F
- Cold Oregon City, OR 55°F
Climate Living Index · Roseburg Rgnl
Roseburg Rgnl: 83/100 · grade B
Roseburg Rgnl publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Roseburg Rgnl, not an official NOAA rating. Rankings still use Comfort Score 85/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 0 calendar days | 100/100 · A |
| Precipitation balance | 32.1 in · 2.9 from 35 in | 89/100 · A |
| Frost-free season | 246 days/year | 87/100 · A |
| Annual temperature balance | 55.9°F · 11.6° from 67.5°F | 62/100 · C |
Roseburg Rgnl · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Roseburg Rgnl is a temperate Köppen climate: Csb
Coldest-month mean 42.5°F and warmest-month mean 71.6°F place this station in temperate, dry-summer, warm summer climates (Csb). Class Csb is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: temperate, specifically temperate, dry-summer, warm summer.
- Köppen code
- Csb
- Group
- Temperate
- Warmest month
- 71.6°F
- Coldest month
- 42.5°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · heating-led station
Where Roseburg Rgnl sits across the climate record
Three NOAA fields for Roseburg Rgnl's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 63rd percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- 43rd percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- Narrower than 92%
- Warmest-to-coldest month gap for Roseburg Rgnl is compact versus 6,861 complete station-years.
How Roseburg Rgnl compares across U.S. station-mapped locations
Roseburg Rgnl's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
85 Top 15% score exceeds 85% of 6,189 station-mapped location scores
- 0–10: 0 station-mapped locations (0%). Below this entry.
- 10–20: 0 station-mapped locations (0%). Below this entry.
- 20–30: 96 station-mapped locations (2%). Below this entry.
- 30–40: 280 station-mapped locations (5%). Below this entry.
- 40–50: 1,113 station-mapped locations (18%). Below this entry.
- 50–60: 1,329 station-mapped locations (21%). Below this entry.
- 60–70: 1,236 station-mapped locations (20%). Below this entry.
- 70–80: 650 station-mapped locations (11%). Below this entry.
- 80–90: 921 station-mapped locations (15%). This entry sits in this band.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Roseburg Rgnl's measured station temperature trend
MethodologyAcross 58 complete annual observations from 1931 to 2024, ROSEBURG RGNL AP warmed at a fitted rate of 0.14°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Roseburg Rgnl primary station fitted change +0.14 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 50°F (10°C) | 37°F (3°C) | 44°F (6°C) | 4.8" | 7.1 | 0.0 |
| February | 54°F (12°C) | 38°F (3°C) | 46°F (8°C) | 3.6" | 6.0 | 0.0 |
| March | 59°F (15°C) | 40°F (4°C) | 49°F (10°C) | 3.5" | 3.7 | 0.0 |
| April | 63°F (17°C) | 43°F (6°C) | 53°F (12°C) | 2.7" | 0.5 | 0.3 |
| May | 71°F (22°C) | 48°F (9°C) | 60°F (15°C) | 2.1" | 0.0 | 1.3 |
| June | 77°F (25°C) | 53°F (11°C) | 65°F (18°C) | 0.9" | 0.0 | 2.7 |
| July | 86°F (30°C) | 57°F (14°C) | 72°F (22°C) | 0.3" | 0.0 | 10.2 |
| August | 86°F (30°C) | 57°F (14°C) | 72°F (22°C) | 0.2" | 0.0 | 11.3 |
| September | 80°F (27°C) | 52°F (11°C) | 66°F (19°C) | 0.8" | 0.0 | 4.9 |
| October | 67°F (19°C) | 45°F (7°C) | 56°F (13°C) | 2.3" | 0.6 | 0.2 |
| November | 54°F (12°C) | 41°F (5°C) | 47°F (9°C) | 4.7" | 2.7 | 0.0 |
| December | 48°F (9°C) | 37°F (3°C) | 43°F (6°C) | 6.0" | 7.0 | 0.0 |
The year, day by day
The calendar barely moves in Roseburg Rgnl: no date carries a normal high of 90°F or a normal low at freezing. The year runs between 36°F near December 23 and 88°F near July 25.
No freezing date
Not one calendar date in the 1991–2020 record carries a normal low at or below 32°F. The coldest normal low of the year is 36°F around December 23.
Where the wet dates fall
The likeliest wet date is December 14, when 64% of years recorded at least a hundredth of an inch. The driest is July 31 at 4%. Summed across the calendar, that is about 142 wet dates a year.
The widest day
July 23 carries the biggest normal gap between afternoon and dawn, 29°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Roseburg Rgnl.
Monthly Precipitation
Average monthly rainfall
17.8 days with precipitation
16.8 days with precipitation
16.9 days with precipitation
14.8 days with precipitation
11.2 days with precipitation
6.0 days with precipitation
1.3 days with precipitation
1.5 days with precipitation
4.6 days with precipitation
12.1 days with precipitation
18.3 days with precipitation
19.8 days with precipitation
Roseburg Rgnl's wet season runs through the cold months
December, January and February carry 45% of the year's precipitation here, while June through August contribute 4%. That is the cool-season-dominant pattern of the West Coast and the higher inland West, where storm tracks swing south in winter and summer turns dry; the thermometer meanwhile shows an unusually narrow 29.1°F seasonal spread.
- Wettest month
- December, 6.0"
- Driest month
- August, 0.2"
- Wettest three months
- December, January, November (49% of the year)
Shares are computed from this station's own 1991-2020 monthly precipitation normals. A cool-season label means the December-February share reaches 35%. Where snow falls, the monthly figures above report liquid-equivalent precipitation, so a wet winter month is not necessarily a rainy one.
How Roseburg Rgnl's precipitation splits across the calendar
About 141 days a year record measurable precipitation here, carrying 32.1" between them, or roughly 0.23 inches on a typical wet day. That sits in the middle band: neither the many-light-days pattern of the Pacific Northwest and the Great Lakes, nor the few-heavy-events pattern of the Gulf and the desert Southwest.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year and say nothing about the heaviest single storm on record.
Frost Dates & Growing Season
First Fall Freeze
November 20
50% probability date
Last Spring Freeze
March 19
50% probability date
Growing Season
246 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
3,913
Higher = more heating needed
Cooling Degree Days
607
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
Nationwide similar cities
Other rankable U.S. places outside OR closest to Roseburg Rgnl on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (56°F here).
- Beltsville, MD 56°F · 0.0°F off
- Chanute, KS 56°F · 0.0°F off
- Dodge City, KS 56°F · 0.0°F off
- Elizabethton, TN 56°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (32.1" here), excluding temperature-peer places.
- Sanborn, IA 32.1" · 0.0" off
- Battle Creek, IA 32.1" · 0.0" off
- Suring, WI 32.1" · 0.0" off
- Henrietta, TX 32.0" · 0.0" off
Data-derived climate profile
How Roseburg Rgnl's climate pattern fits together
heating led · moderate · low swing
Heating is the larger measured load in Roseburg Rgnl, at 3,913 degree days versus 607 for cooling. Unlike a strongly continental record, however, its 29.1°F month-to-month range is compact; persistent cool-season demand matters more than a dramatic summer-to-winter reversal.
The frost-free window extends for about 246 days. That is a long calendar measure, but it is not a forecast and does not combine heat, rainfall, soil, or local elevation into a planting recommendation.
Temperature varies within a narrow 29.1°F band across the normal year. July and December mark the typical warm and cold ends of the calendar. The annual average is 56°F. Monthly rows still matter, but they refine a steady profile rather than reveal two climatic extremes.
Roseburg Rgnl's 32.1 inches of annual precipitation falls in PlainClimate's middle band, so “wet” or “dry” is not the leading description. Snowfall is not added to the interpretation because its annual value is missing. Temperature balance and the calendar distribution carry more information than the annual moisture label alone.
These labels group NOAA 1991-2020 normals from Roseburg Rgnl's primary station, so the winter figures are a thirty-year average and not a floor: a single hard season can run well below them. Treat each band as a descriptive range for Roseburg Rgnl, not an official NOAA class or a year-ahead forecast.
Questions about Roseburg Rgnl's climate
How much rain does Roseburg Rgnl get? ▼
How many days above 90°F does Roseburg Rgnl get? ▼
How much energy does heating and cooling require in Roseburg Rgnl? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Roseburg Rgnl's primary station: ROSEBURG RGNL AP (USW00024231). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The conservative exact name-and-state crosswalk finds no Census place match, so PlainClimate treats this as a station-mapped location and does not claim it is a municipality. No exact Gazetteer row for Roseburg Rgnl; facility counts that depend on place identity are therefore an upper bound, not a municipal census.
On this page every temperature, precipitation, and derived score for Roseburg Rgnl comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.