Bellevue weather in January

In January, Bellevue sees average daytime highs of 46°F and overnight lows near 38°F, with 6.9 in of precipitation across 18.4 wet days and about 8.7 hours of daylight. It is the 11th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 46°F through the month. The sky is clear or mostly clear about 14% of the time in January, and the air most often feels dry.

Daylight stretches from about 8 h 18 min at the start of January to 9 h 12 min by month's end. Set against the rest of the year, January is Bellevue's 11th-clearest and 3rd-windiest month. For the whole year in context, see Bellevue's year-round climate.

Daytime high
46°
11th warmest
Overnight low
38°
2nd coldest
Precipitation
6.9 in
18.4 wet days
Daylight
8 h 36 min
7:59 AM – 4:37 PM
Cloud cover
76%
11th clearest
Wind
7 mph
3rd windiest
Solar energy
1.03 kWh/m²
Travel score
1.0
out of 10

Bellevue is city in King County, Washington, United States.

Density
13,352/km²
people per km²
Founded
1869

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 46°F through the month.

A typical January day in Bellevue reaches about 46°F in the afternoon and slips back to 38°F overnight — a 8°F spread between the day's warmth and the night's chill. On most days the high lands between 39°F and 52°F. Set against its neighbours, January runs on par with December and about 3°F cooler than February.

20°30°40°50°60°151015202531
Avg high (°F)Avg low (°F)
14538
24538
34538
44538
54538
64538
74538
84538
94538
104538
114538
124638
134638
144638
154638
164638
174638
184638
194638
204639
214639
224639
234739
244739
254739
264739
274739
284739
294739
304739
314739

Bellevue weather by month

How January compares with the rest of the year at a glance. January is the 11th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan46° / 38°6.918.42.28.71.0
Feb49° / 39°4.714.51.89.91.6
Mar52° / 40°5.517.50.811.62.3
Apr57° / 44°4.514.90.113.33.5
May64° / 49°3.012014.95.3
Jun68° / 53°2.39.5015.76.3
Jul74° / 57°1.05015.47.9
Aug75° / 58°1.34.8014.18.0
Sep69° / 53°2.68.4012.46.8
Oct59° / 47°5.314.1010.64.2
Nov50° / 42°7.6180.69.11.9
Dec45° / 38°7.017.62.18.30.8

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 14% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 10% of January, with mostly cloudy or overcast conditions the remaining 76%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12476
22575
32575
42575
52575
62575
72476
82476
92476
102476
112476
122476
132476
142476
152476
162476
172476
182476
192476
202476
212476
222476
232476
242476
252476
262476
272476
282476
292377
302377
312476

Chance of precipitation in January

Any precipitationSnow

Bellevue gets around 6.9 in of rain and snow over 18.4 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 58% and peaks near 60% on the wettest days, and about 2 days bring snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
1599
2609
3609
4609
5609
6609
7609
8609
9609
10609
11608
12608
13598
14597
15587
16587
17586
18576
19576
20576
21575
22575
23575
24585
25575
26575
27575
28575
29565
30565
31556

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 7 mph in January.

Across January, daily wind ranges from about 6 mph on the calmest days to 7 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 8 h 18 min at the start of January to 9 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over January. Sunrise moves from 8:03 AM to 7:46 AM, and sunset from 4:21 PM to 4:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.38:034:21
28.38:034:21
38.38:034:22
48.38:034:23
58.48:034:24
68.48:034:25
78.48:034:26
88.48:034:27
98.48:024:28
108.58:024:30
118.58:024:31
128.58:014:32
138.58:014:33
148.68:004:34
158.68:004:36
168.67:594:37
178.77:594:38
188.77:584:40
198.77:574:41
208.87:574:42
218.87:564:44
228.87:554:45
238.97:544:46
248.97:534:48
258.97:524:49
269.07:514:51
279.07:504:52
289.17:494:54
299.17:484:55
309.27:474:57
319.27:464:58

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 1.03 kWh/m².

For context, solar energy here swings from a low near 0.88 kWh/m² to a high of 6.14 kWh/m² in July across the year — January's 1.03 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.9Dim
20.9Dim
30.9Dim
40.9Dim
50.9Dim
60.9Dim
70.9Dim
80.9Dim
90.9Dim
100.9Dim
111.0Dim
121.0Dim
131.0Dim
141.0Dim
151.0Dim
161.0Dim
171.1Dim
181.1Dim
191.1Dim
201.1Dim
211.1Dim
221.1Dim
231.2Dim
241.2Dim
251.2Dim
261.2Dim
271.3Dim
281.3Dim
291.3Dim
301.3Dim
311.4Dim
Planning a trip in January

Hazard calendar for Bellevue

In seasonPeak

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

Bellevue's rainy season runs October–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 Bellevue?

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

1.0
Sightseeing
11th-best month of the year
0.0
Beach & pool
8th-best month of the year

January is a weaker month for outdoor sightseeing in Bellevue.

What to pack for Bellevue in January

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

In January, Bellevue sees daytime highs around 46°F and nights near 38°F. Pack a warm layer and rain gear. Worth having: a heavy coat. About 18 days see rain.

a warm layerrain geara heavy coat

UV index in Bellevue in January

LowModerateHighVery highExtreme

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

Under clear skies, the midday UV index in Bellevue peaks around July 17 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 18 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 17UV 8Dec 18UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar4Moderate
Apr5Moderate
May7High
Jun6High
Jul8Very high
Aug6High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Bellevue 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 Bellevue is worst in September — around 22 µg/m³ PM2.5 (moderate), about 3.4× the cleanest month (December, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodGoodModerateGoodSep 1322 µg/m³Dec 177 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb9Good
Mar12Moderate
Apr12Good
May11Good
Jun10Good
Jul10Good
Aug18Moderate
Sep22Moderate
Oct12Good
Nov8Good
Dec7Good
Location & terrain

Where is Bellevue?

Bellevue sits at 47.6°N, 122.2°W, 85 ft above sea level, in United States. The nearest listed city is Mercer Island, 3.1 mi away.

Topography around Bellevue

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

Within 2 miles, the terrain around Bellevue has only modest variations in elevation — a maximum elevation change of 387 ft around an average of 128 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,014 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 7,799 ft.

The land around Bellevue is covered by trees (49%) and artificial surfaces (27%) within 2 miles, trees (53%) and artificial surfaces (25%) within 10 miles, and trees (74%) within 50 miles.

2 miles
387 ft
10 miles
2,014 ft
50 miles
7,799 ft
treesgrasslandartificial surfacesbare terrainwater
January weather nearby: Mercer Island 3.1 mi · Columbia City 5.0 mi · Kirkland 5.0 mi · West Lake Sammamish 5.0 mi · Redmond 5.6 mi · Sammamish 6.2 mi · Seattle 6.2 mi · City of Sammamish 7.5 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 Bellevue (47.6104°, -122.2007°, elevation 85 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).