Roseburg weather in December

In December, Roseburg sees average daytime highs of 47°F and overnight lows near 34°F, with 7.8 in of precipitation across 16.8 wet days and about 8.9 hours of daylight. It is the 12th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 47°F through the month. The sky is clear or mostly clear about 15% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 hours at the start of December to 8 h 48 min by month's end. Set against the rest of the year, December is Roseburg's 12th-clearest and 1st-windiest month. For the whole year in context, see Roseburg's year-round climate.

Daytime high
47°
12th warmest
Overnight low
34°
1st coldest
Precipitation
7.8 in
16.8 wet days
Daylight
8 h 48 min
7:45 AM – 4:34 PM
Cloud cover
74%
12th clearest
Wind
4 mph
1st windiest
Solar energy
1.34 kWh/m²
Travel score
1.2
out of 10

Roseburg is city in and seat of Douglas County, Oregon, United States.

Density
837/km²
people per km²
Founded
1851

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 47°F through the month.

A typical December day in Roseburg reaches about 47°F in the afternoon and slips back to 34°F overnight — a 13°F spread between the day's warmth and the night's chill. On most days the high lands between 40°F and 54°F. Set against its neighbours, December runs about 6°F cooler than November and about 2°F cooler than January.

20°30°40°50°60°151015202531
Avg high (°F)Avg low (°F)
14835
24835
34835
44835
54734
64734
74734
84734
94734
104734
114734
124734
134634
144634
154634
164634
174634
184634
194634
204634
214634
224634
234634
244633
254633
264633
274633
284633
294633
304633
314633

How December really feels in Roseburg

Once humidity and wind are folded in, December averages 0 days that feel above 90°F and 31 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
31
wind chill below the day's low

The story in December is cold — wind chill drags the overnight "feels like" below the raw low.

Roseburg weather by month

How December compares with the rest of the year at a glance. December is the 12th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan48° / 34°6.216.13.49.21.5
Feb51° / 35°4.914.53.210.22.2
Mar55° / 37°5.816.6311.63.0
Apr59° / 40°4.615.41.413.24.0
May66° / 45°3.110.6014.45.9
Jun72° / 49°1.66.9015.17.3
Jul81° / 54°0.31.6014.98.1
Aug82° / 54°0.42013.88.0
Sep76° / 50°1.24.7012.38.1
Oct65° / 43°3.49.9010.86.0
Nov53° / 38°6.315.91.49.52.5
Dec47° / 34°7.816.83.48.91.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 15% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 9% of December, with mostly cloudy or overcast conditions the remaining 76%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12674
22674
32575
42476
52476
62575
72476
82476
92476
102377
112278
122278
132278
142278
152278
162278
172278
182278
192278
202377
212476
222476
232575
242674
252674
262674
272674
282674
292674
302674
312674

Chance of precipitation in December

Any precipitationSnow

Roseburg gets around 7.8 in of rain and snow over 16.8 wet days in December, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 54% and peaks near 56% on the wettest days, and about 3 days bring snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
1559
2558
3558
4568
5568
6568
7568
8568
9568
10569
11569
12569
135610
145610
155610
165611
175511
185512
195512
205413
215413
225313
235314
245214
255214
265114
275114
285113
295113
305113
315213

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in December

Winds average 4 mph in December, the windiest month of the year.

Across December, daily wind ranges from about 4 mph on the calmest days to 5 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 hours at the start of December to 8 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over December. Sunrise moves from 7:32 AM to 7:51 AM, and sunset from 4:34 PM to 4:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.07:324:34
29.07:334:34
39.07:344:34
49.07:354:34
59.07:364:33
68.97:374:33
78.97:384:33
88.97:394:33
98.97:404:33
108.97:414:33
118.97:414:33
128.97:424:33
138.87:434:33
148.87:444:34
158.87:444:34
168.87:454:34
178.87:464:34
188.87:464:35
198.87:474:35
208.87:474:35
218.87:484:36
228.87:484:36
238.87:494:37
248.87:494:37
258.87:504:38
268.87:504:38
278.87:504:39
288.87:514:40
298.87:514:40
308.87:514:41
318.87:514:42

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.34 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.34 kWh/m² to a high of 7.46 kWh/m² in July across the year — December's 1.34 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
11.4Dim
21.4Dim
31.4Dim
41.4Dim
51.4Dim
61.4Dim
71.4Dim
81.3Dim
91.3Dim
101.3Dim
111.3Dim
121.3Dim
131.3Dim
141.3Dim
151.3Dim
161.3Dim
171.3Dim
181.3Dim
191.3Dim
201.3Dim
211.3Dim
221.3Dim
231.3Dim
241.3Dim
251.3Dim
261.4Dim
271.4Dim
281.4Dim
291.4Dim
301.4Dim
311.4Dim
Planning a trip in December

Hazard calendar for Roseburg

In seasonPeak

In December, Roseburg sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Roseburg's rainy season runs November–April, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Roseburg?

Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

1.2
Sightseeing
12th-best month of the year
0.0
Beach & pool
9th-best month of the year

December is a weaker month for outdoor sightseeing in Roseburg.

What to pack for Roseburg in December

From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In December, Roseburg sees daytime highs around 47°F and nights near 34°F. Pack a warm layer and rain gear. About 17 days see rain.

a warm layerrain gear

UV index in Roseburg in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 1. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Roseburg peaks around July 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 15UV 9Dec 17UV 1
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar5Moderate
Apr6High
May9Very high
Jun8Very high
Jul9Very high
Aug7Very high
Sep5High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Roseburg in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Roseburg is worst in September — around 73 µg/m³ PM2.5 (unhealthy), about 16.1× the cleanest month (January, 5 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

020406080JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateUnhealthyModerateSep 1566 µg/m³Jan 225 µg/m³
PM2.5 (µg/m³)Level
Jan5Good
Feb6Good
Mar8Good
Apr9Good
May9Good
Jun7Good
Jul13Moderate
Aug31Moderate
Sep73Unhealthy
Oct11Good
Nov13Moderate
Dec13Moderate
Location & terrain

Where is Roseburg?

Roseburg sits at 43.2°N, 123.3°W, 482 ft above sea level, in United States. The nearest listed city is Coos Bay, 45 mi away.

Topography around Roseburg

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Roseburg.

Within 2 miles, the terrain around Roseburg has significant variations in elevation — a maximum elevation change of 1,060 ft around an average of 673 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,858 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 6,706 ft.

The land around Roseburg is covered by trees (54%) and artificial surfaces (25%) within 2 miles, trees (55%) and grassland (39%) within 10 miles, and trees (90%) within 50 miles.

2 miles
1,060 ft
10 miles
2,858 ft
50 miles
6,706 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Coos Bay 45 mi · Grants Pass 53 mi · Eugene 59 mi · Springfield 60 mi · Central Point 62 mi · Medford 66 mi · Ashland 78 mi · Corvallis 93 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Roseburg (43.2165°, -123.3417°, elevation 482 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).