Altamont weather in January

In January, Altamont sees average daytime highs of 39°F and overnight lows near 26°F, with 3.2 in of precipitation across 11.8 wet days and about 9.3 hours of daylight. It is the 11th-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 38°F in the first days to 41°F by the end. The sky is clear or mostly clear about 22% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 hours at the start of January to 9 h 42 min by month's end. Set against the rest of the year, January is Altamont's 11th-clearest and 12th-windiest month. For the whole year in context, see Altamont's year-round climate.

Daytime high
39°
11th warmest
Overnight low
26°
1st coldest
Precipitation
3.2 in
11.8 wet days
Daylight
9 h 12 min
7:39 AM – 4:53 PM
Cloud cover
67%
11th clearest
Wind
4 mph
12th windiest
Solar energy
2.02 kWh/m²
Travel score
0.0
out of 10

Altamont is unincorporated community in Klamath County, Oregon, United States.

Density
918/km²
people per km²

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 38°F in the first days to 41°F by the end.

A typical January day in Altamont reaches about 39°F in the afternoon and slips back to 26°F overnight — a 13°F spread between the day's warmth and the night's chill. On most days the high lands between 32°F and 46°F. Set against its neighbours, January runs on par with December and about 4°F cooler than February.

20°30°40°50°60°151015202531
Avg high (°F)Avg low (°F)
13725
23725
33825
43825
53825
63825
73825
83825
93825
103826
113826
123826
133926
143926
153926
163926
173926
183926
193926
204026
214026
224026
234026
244026
254026
264026
274126
284126
294126
304126
314126

How January really feels in Altamont

Once humidity and wind are folded in, January 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 January is cold — wind chill drags the overnight "feels like" below the raw low.

Altamont weather by month

How January compares with the rest of the year at a glance. January is the 11th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan39° / 26°3.211.89.59.30.0
Feb43° / 27°2.5108.410.30.4
Mar48° / 30°2.812.1811.61.8
Apr55° / 34°2.010.14.513.13.5
May65° / 41°1.78.31.114.46.2
Jun74° / 47°0.94.70.1157.9
Jul84° / 55°0.32.1014.87.1
Aug83° / 55°0.41.8013.77.4
Sep76° / 48°0.52.6012.38.6
Oct62° / 40°1.45.7110.86.1
Nov47° / 32°2.79.75.59.61.4
Dec38° / 26°3.912.410.490.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 13% of January, with mostly cloudy or overcast conditions the remaining 65%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13268
23070
33169
43169
53169
63169
73268
83268
93268
103367
113367
123466
133565
143565
153664
163763
173763
183862
193862
203763
213862
223862
233862
243862
253862
263862
273862
283862
293763
303763
313763

Chance of precipitation in January

Any precipitationSnow

Altamont gets around 3.2 in of rain and snow over 11.8 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 38% and peaks near 40% on the wettest days, and about 10 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
14035
24035
34035
44034
54034
64034
74033
84033
94033
104032
114032
124032
134032
143932
153932
163932
173931
183831
193831
203831
213830
223730
233730
243629
253629
263628
273528
283527
293427
303426
313426

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January 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 January

Winds average 4 mph in January, the calmest month.

Across January, daily wind ranges from about 4 mph on the calmest days to 4 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
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 hours at the start of January to 9 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over January. Sunrise moves from 7:41 AM to 7:29 AM, and sunset from 4:39 PM to 5:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.07:414:39
29.07:414:40
39.07:414:41
49.07:414:42
59.07:414:42
69.07:414:43
79.07:414:44
89.17:414:45
99.17:414:46
109.17:414:47
119.17:414:48
129.17:404:49
139.27:404:50
149.27:404:51
159.27:394:52
169.27:394:53
179.37:394:55
189.37:384:56
199.37:384:57
209.37:374:58
219.47:374:59
229.47:365:00
239.47:355:01
249.57:355:03
259.57:345:04
269.57:335:05
279.67:335:06
289.67:325:08
299.67:315:09
309.77:305:10
319.77:295:11

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.02 kWh/m².

For context, solar energy here swings from a low near 1.73 kWh/m² to a high of 8.03 kWh/m² in July across the year — January's 2.02 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
11.8Dim
21.9Dim
31.9Dim
41.9Dim
51.9Dim
61.9Dim
71.9Dim
81.9Dim
91.9Dim
101.9Dim
111.9Dim
121.9Dim
131.9Dim
142.0Dim
152.0Dim
162.0Moderate
172.0Moderate
182.0Moderate
192.1Moderate
202.1Moderate
212.1Moderate
222.2Moderate
232.2Moderate
242.2Moderate
252.3Moderate
262.3Moderate
272.3Moderate
282.4Moderate
292.4Moderate
302.4Moderate
312.5Moderate
Planning a trip in January

Hazard calendar for Altamont

In seasonPeak

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

Altamont'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 January a good time to visit Altamont?

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

0.0
Sightseeing
11th-best month of the year
0.0
Beach & pool
9th-best month of the year

January is a weaker month for outdoor sightseeing in Altamont.

What to pack for Altamont in January

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

In January, Altamont sees daytime highs around 39°F and nights near 26°F. Pack a warm layer and a heavy coat. Worth having: rain gear. About 12 days see rain.

a warm layera heavy coatrain gear

UV index in Altamont in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Altamont peaks around July 11 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJul 11UV 10Dec 12UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar5High
Apr6High
May9Very high
Jun9Very high
Jul10Very high
Aug8Very high
Sep6High
Oct5Moderate
Nov2Low
Dec2Low

Air quality in Altamont in January

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Altamont is worst in July — around 40 µg/m³ PM2.5 (poor), about 7.4× the cleanest month (January, 5 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodGoodPoorModerateGoodJul 2139 µg/m³Jan 186 µg/m³
PM2.5 (µg/m³)Level
Jan5Good
Feb8Good
Mar9Good
Apr14Moderate
May9Good
Jun7Good
Jul40Poor
Aug33Moderate
Sep38Poor
Oct10Good
Nov8Good
Dec9Good
Location & terrain

Where is Altamont?

Altamont sits at 42.2°N, 121.7°W, 4,144 ft above sea level, in United States. The nearest listed city is Klamath Falls, 2.5 mi away.

Topography around Altamont

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

Within 2 miles, the terrain around Altamont has significant variations in elevation — a maximum elevation change of 830 ft around an average of 4,177 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,415 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 7,792 ft.

The land around Altamont is covered by artificial surfaces (42%) and grassland (41%) within 2 miles, grassland (50%) and trees (27%) within 10 miles, and trees (57%) and grassland (36%) within 50 miles.

2 miles
830 ft
10 miles
2,415 ft
50 miles
7,792 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Klamath Falls 2.5 mi · Ashland 50 mi · Medford 59 mi · Central Point 62 mi · Grants Pass 83 mi · Roseburg 107 mi · Redding 117 mi · Bend 130 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 Altamont (42.2068°, -121.7372°, elevation 4,144 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).