Susanville weather in January

In January, Susanville sees average daytime highs of 38°F and overnight lows near 22°F, with 3.5 in of precipitation across 9.6 wet days and about 9.4 hours of daylight. It is the 11th-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 36°F in the first days to 39°F by the end. The sky is clear or mostly clear about 27% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 12 min at the start of January to 9 h 48 min by month's end. Set against the rest of the year, January is Susanville's 11th-clearest and 12th-windiest month. For the whole year in context, see Susanville's year-round climate.

Daytime high: 38°; 11th warmest
Overnight low: 22°; 2nd coldest
Precipitation: 3.5 in; 9.6 wet days
Daylight: 9 h 24 min; 7:29 AM – 4:54 PM
Cloud cover: 64%; 11th clearest
Wind: 4 mph; 12th windiest
Solar energy: 2.35 kWh/m²
Travel score: 0.0; out of 10

Susanville is city in and county seat of Lassen County, California, United States.

Density: 733/km²; people per km²
Founded: 1900

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

← December Susanville year-round climate February →Best places to visit in January

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 36°F in the first days to 39°F by the end.

A typical January day in Susanville reaches about 38°F in the afternoon and slips back to 22°F overnight — a 15°F spread between the day's warmth and the night's chill. On most days the high lands between 29°F and 46°F. Set against its neighbours, January runs on par with December and about 3°F cooler than February.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°F)	36	36	36	37	37	37	37	37	37	37	37	37	37	37	37	37	38	38	38	38	38	38	38	38	38	38	39	39	39	39	39
Avg low (°F)	21	21	21	21	22	22	22	22	22	22	22	22	22	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23

	Avg high (°F)	Avg low (°F)
1	36	21
2	36	21
3	36	21
4	37	21
5	37	22
6	37	22
7	37	22
8	37	22
9	37	22
10	37	22
11	37	22
12	37	22
13	37	22
14	37	23
15	37	23
16	37	23
17	38	23
18	38	23
19	38	23
20	38	23
21	38	23
22	38	23
23	38	23
24	38	23
25	38	23
26	38	23
27	39	23
28	39	23
29	39	23
30	39	23
31	39	23

How January really feels in Susanville

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

heat index over the day's high

Days feeling ≤ 32°F

wind chill below the day's low

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

Susanville 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.

Month	High / Low (°F)	Rainfall (inches)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	38° / 22°	3.5	9.6	9.1	9.4	0.0
Feb	41° / 24°	3.3	9.6	9.1	10.4	0.1
Mar	46° / 28°	3.2	10.5	9.2	11.7	1.3
Apr	53° / 32°	2.0	9.4	6	13	3.2
May	64° / 40°	1.9	8.5	1.8	14.2	6.0
Jun	75° / 48°	0.9	4.8	0.3	14.8	8.0
Jul	85° / 55°	0.4	2.7	0	14.6	6.9
Aug	84° / 54°	0.4	2.6	0	13.6	7.3
Sep	75° / 48°	0.6	3	0.1	12.3	8.5
Oct	62° / 39°	1.1	4.5	1.2	10.9	6.4
Nov	47° / 29°	2.2	7.5	5.5	9.8	1.6
Dec	37° / 22°	3.8	10.5	9.6	9.2	0.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 12% of January, with mostly cloudy or overcast conditions the remaining 60%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	38	39	39	39	38	38	39	39	40	39	39	39	40	40	40	40	40	40	40	40	40	40	40	41	40	39	39	40	40	40	40
Cloudier (%)	62	61	61	61	62	62	61	61	60	61	61	61	60	60	60	60	60	60	60	60	60	60	60	59	60	61	61	60	60	60	60

	Clearer (%)	Cloudier (%)
1	38	62
2	39	61
3	39	61
4	39	61
5	38	62
6	38	62
7	39	61
8	39	61
9	40	60
10	39	61
11	39	61
12	39	61
13	40	60
14	40	60
15	40	60
16	40	60
17	40	60
18	40	60
19	40	60
20	40	60
21	40	60
22	40	60
23	40	60
24	41	59
25	40	60
26	39	61
27	39	61
28	40	60
29	40	60
30	40	60
31	40	60

Chance of precipitation in January

Any precipitationSnow

Susanville gets around 3.5 in of rain and snow over 9.6 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 31% and peaks near 33% on the wettest days, and about 9 days bring snow.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	30	30	30	30	30	30	30	30	30	30	31	31	31	32	32	32	33	33	33	33	33	33	33	32	32	32	31	31	30	30	30
Snow chance (%)	29	29	29	29	29	29	29	29	28	29	29	29	29	30	30	30	31	31	31	31	31	31	31	30	30	30	29	28	28	27	27

	Rain chance (%)	Snow chance (%)
1	30	29
2	30	29
3	30	29
4	30	29
5	30	29
6	30	29
7	30	29
8	30	29
9	30	28
10	30	29
11	31	29
12	31	29
13	31	29
14	32	30
15	32	30
16	32	30
17	33	31
18	33	31
19	33	31
20	33	31
21	33	31
22	33	31
23	33	31
24	32	30
25	32	30
26	32	30
27	31	29
28	31	28
29	30	28
30	30	27
31	30	27

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.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Dry (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

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.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (mph)	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (mph)	Feels
1	4	calm
2	4	calm
3	4	calm
4	4	calm
5	4	calm
6	4	calm
7	4	calm
8	4	calm
9	4	calm
10	4	calm
11	4	calm
12	4	calm
13	4	calm
14	4	calm
15	4	calm
16	4	calm
17	4	calm
18	4	calm
19	4	calm
20	4	calm
21	4	calm
22	4	calm
23	4	calm
24	4	calm
25	4	calm
26	4	calm
27	4	calm
28	4	calm
29	4	calm
30	4	calm
31	4	calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 h 12 min at the start of January to 9 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over January. Sunrise moves from 7:31 AM to 7:21 AM, and sunset from 4:41 PM to 5:11 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	9.2	9.2	9.2	9.2	9.2	9.2	9.2	9.3	9.3	9.3	9.3	9.3	9.3	9.4	9.4	9.4	9.4	9.5	9.5	9.5	9.5	9.6	9.6	9.6	9.7	9.7	9.7	9.7	9.8	9.8	9.8
Sunrise (AM)	7:31	7:31	7:31	7:31	7:31	7:31	7:31	7:31	7:31	7:31	7:31	7:31	7:30	7:30	7:30	7:29	7:29	7:29	7:28	7:28	7:27	7:27	7:26	7:26	7:25	7:24	7:24	7:23	7:22	7:21	7:21
Sunset (PM)	4:41	4:41	4:42	4:43	4:44	4:45	4:46	4:46	4:47	4:48	4:49	4:50	4:51	4:52	4:53	4:54	4:55	4:56	4:58	4:59	5:00	5:01	5:02	5:03	5:04	5:05	5:07	5:08	5:09	5:10	5:11

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	9.2	7:31	4:41
2	9.2	7:31	4:41
3	9.2	7:31	4:42
4	9.2	7:31	4:43
5	9.2	7:31	4:44
6	9.2	7:31	4:45
7	9.2	7:31	4:46
8	9.3	7:31	4:46
9	9.3	7:31	4:47
10	9.3	7:31	4:48
11	9.3	7:31	4:49
12	9.3	7:31	4:50
13	9.3	7:30	4:51
14	9.4	7:30	4:52
15	9.4	7:30	4:53
16	9.4	7:29	4:54
17	9.4	7:29	4:55
18	9.5	7:29	4:56
19	9.5	7:28	4:58
20	9.5	7:28	4:59
21	9.5	7:27	5:00
22	9.6	7:27	5:01
23	9.6	7:26	5:02
24	9.6	7:26	5:03
25	9.7	7:25	5:04
26	9.7	7:24	5:05
27	9.7	7:24	5:07
28	9.7	7:23	5:08
29	9.8	7:22	5:09
30	9.8	7:21	5:10
31	9.8	7:21	5:11

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.35 kWh/m².

For context, solar energy here swings from a low near 2.08 kWh/m² to a high of 8.22 kWh/m² in July across the year — January's 2.35 kWh/m² sits near the bottom.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.3	2.3	2.3	2.3	2.3	2.4	2.4	2.4	2.4	2.5	2.5	2.5	2.6	2.6	2.6	2.7	2.7	2.8	2.8	2.8
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	Solar energy (kWh/m²)	Level
1	2.2	Moderate
2	2.2	Moderate
3	2.2	Moderate
4	2.2	Moderate
5	2.2	Moderate
6	2.2	Moderate
7	2.2	Moderate
8	2.2	Moderate
9	2.2	Moderate
10	2.2	Moderate
11	2.2	Moderate
12	2.3	Moderate
13	2.3	Moderate
14	2.3	Moderate
15	2.3	Moderate
16	2.3	Moderate
17	2.4	Moderate
18	2.4	Moderate
19	2.4	Moderate
20	2.4	Moderate
21	2.5	Moderate
22	2.5	Moderate
23	2.5	Moderate
24	2.6	Moderate
25	2.6	Moderate
26	2.6	Moderate
27	2.7	Moderate
28	2.7	Moderate
29	2.8	Moderate
30	2.8	Moderate
31	2.8	Moderate

Planning a trip in January

Hazard calendar for Susanville

In seasonPeak

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

Susanville's rainy season runs November–May, 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 Susanville?

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 Susanville.

What to pack for Susanville in January

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

In January, Susanville sees daytime highs around 38°F and nights near 22°F. Pack a warm layer and a heavy coat. Worth having: rain gear. About 10 days see rain.

a warm layera heavy coatrain gear

UV index in Susanville in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 3. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Susanville peaks around June 23 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	3	4	5	7	9	11	11	9	6	5	2	2
Level	Moderate	Moderate	High	Very high	Very high	Extreme	Extreme	Very high	High	Moderate	Moderate	Moderate

	UV index (midday)	Level
Jan	3	Moderate
Feb	4	Moderate
Mar	5	High
Apr	7	Very high
May	9	Very high
Jun	11	Extreme
Jul	11	Extreme
Aug	9	Very high
Sep	6	High
Oct	5	Moderate
Nov	2	Moderate
Dec	2	Moderate

Air quality in Susanville 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 Susanville is worst in August — around 148 µg/m³ PM2.5 (unhealthy), about 33.7× the cleanest month (December, 4 µg/m³).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	5	6	8	9	8	7	55	148	45	8	6	4
Level	Good	Good	Good	Good	Good	Good	Poor	Unhealthy	Poor	Good	Good	Good

	PM2.5 (µg/m³)	Level
Jan	5	Good
Feb	6	Good
Mar	8	Good
Apr	9	Good
May	8	Good
Jun	7	Good
Jul	55	Poor
Aug	148	Unhealthy
Sep	45	Poor
Oct	8	Good
Nov	6	Good
Dec	4	Good

Location & terrain

Where is Susanville?

Susanville sits at 40.4°N, 120.7°W, 4,186 ft above sea level, in United States. The nearest listed city is Paradise, 68 mi away.

Topography around Susanville

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

Within 2 miles, the terrain around Susanville has only modest variations in elevation — a maximum elevation change of 735 ft around an average of 4,308 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,652 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 8,543 ft.

The land around Susanville is covered by grassland (58%) and trees (22%) within 2 miles, trees (50%) and grassland (45%) within 10 miles, and trees (50%) and grassland (40%) within 50 miles.

2 miles

735 ft

grassland 58%

10 miles

3,652 ft

trees 50%

50 miles

8,543 ft

trees 50%

treesshrubsgrasslandcroplandartificial surfacesbare terrainwater

← December Susanville year-round climate February →Best places to visit in January

January weather nearby: Paradise 68 mi · Spanish Springs 73 mi · Sun Valley 73 mi · Reno 76 mi · Sparks 77 mi · Chico 79 mi · Oroville 79 mi · Truckee 79 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

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 Susanville (40.4163°, -120.653°, elevation 4,186 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).

	Avg high (°F)	Avg low (°F)
1	36	21
2	36	21
3	36	21
4	37	21
5	37	22
6	37	22
7	37	22
8	37	22
9	37	22
10	37	22
11	37	22
12	37	22
13	37	22
14	37	23
15	37	23
16	37	23
17	38	23
18	38	23
19	38	23
20	38	23
21	38	23
22	38	23
23	38	23
24	38	23
25	38	23
26	38	23
27	39	23
28	39	23
29	39	23
30	39	23
31	39	23

	Clearer (%)	Cloudier (%)
1	38	62
2	39	61
3	39	61
4	39	61
5	38	62
6	38	62
7	39	61
8	39	61
9	40	60
10	39	61
11	39	61
12	39	61
13	40	60
14	40	60
15	40	60
16	40	60
17	40	60
18	40	60
19	40	60
20	40	60
21	40	60
22	40	60
23	40	60
24	41	59
25	40	60
26	39	61
27	39	61
28	40	60
29	40	60
30	40	60
31	40	60

	Rain chance (%)	Snow chance (%)
1	30	29
2	30	29
3	30	29
4	30	29
5	30	29
6	30	29
7	30	29
8	30	29
9	30	28
10	30	29
11	31	29
12	31	29
13	31	29
14	32	30
15	32	30
16	32	30
17	33	31
18	33	31
19	33	31
20	33	31
21	33	31
22	33	31
23	33	31
24	32	30
25	32	30
26	32	30
27	31	29
28	31	28
29	30	28
30	30	27
31	30	27

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°F)	Avg low (°F)
1	36	21
2	36	21
3	36	21
4	37	21
5	37	22
6	37	22
7	37	22
8	37	22
9	37	22
10	37	22
11	37	22
12	37	22
13	37	22
14	37	23
15	37	23
16	37	23
17	38	23
18	38	23
19	38	23
20	38	23
21	38	23
22	38	23
23	38	23
24	38	23
25	38	23
26	38	23
27	39	23
28	39	23
29	39	23
30	39	23
31	39	23

	Clearer (%)	Cloudier (%)
1	38	62
2	39	61
3	39	61
4	39	61
5	38	62
6	38	62
7	39	61
8	39	61
9	40	60
10	39	61
11	39	61
12	39	61
13	40	60
14	40	60
15	40	60
16	40	60
17	40	60
18	40	60
19	40	60
20	40	60
21	40	60
22	40	60
23	40	60
24	41	59
25	40	60
26	39	61
27	39	61
28	40	60
29	40	60
30	40	60
31	40	60

	Rain chance (%)	Snow chance (%)
1	30	29
2	30	29
3	30	29
4	30	29
5	30	29
6	30	29
7	30	29
8	30	29
9	30	28
10	30	29
11	31	29
12	31	29
13	31	29
14	32	30
15	32	30
16	32	30
17	33	31
18	33	31
19	33	31
20	33	31
21	33	31
22	33	31
23	33	31
24	32	30
25	32	30
26	32	30
27	31	29
28	31	28
29	30	28
30	30	27
31	30	27

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°F)	Avg low (°F)
1	36	21
2	36	21
3	36	21
4	37	21
5	37	22
6	37	22
7	37	22
8	37	22
9	37	22
10	37	22
11	37	22
12	37	22
13	37	22
14	37	23
15	37	23
16	37	23
17	38	23
18	38	23
19	38	23
20	38	23
21	38	23
22	38	23
23	38	23
24	38	23
25	38	23
26	38	23
27	39	23
28	39	23
29	39	23
30	39	23
31	39	23

	Clearer (%)	Cloudier (%)
1	38	62
2	39	61
3	39	61
4	39	61
5	38	62
6	38	62
7	39	61
8	39	61
9	40	60
10	39	61
11	39	61
12	39	61
13	40	60
14	40	60
15	40	60
16	40	60
17	40	60
18	40	60
19	40	60
20	40	60
21	40	60
22	40	60
23	40	60
24	41	59
25	40	60
26	39	61
27	39	61
28	40	60
29	40	60
30	40	60
31	40	60

	Rain chance (%)	Snow chance (%)
1	30	29
2	30	29
3	30	29
4	30	29
5	30	29
6	30	29
7	30	29
8	30	29
9	30	28
10	30	29
11	31	29
12	31	29
13	31	29
14	32	30
15	32	30
16	32	30
17	33	31
18	33	31
19	33	31
20	33	31
21	33	31
22	33	31
23	33	31
24	32	30
25	32	30
26	32	30
27	31	29
28	31	28
29	30	28
30	30	27
31	30	27

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100