Dallas weather in January

In January, Dallas sees average daytime highs of 47°F and overnight lows near 36°F, with 6.9 in of precipitation across 16.8 wet days and about 9 hours of daylight. It is the 11th-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 45°F in the first days to 48°F by the end. 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 36 min at the start of January to 9 h 30 min by month's end. Set against the rest of the year, January is Dallas's 11th-clearest and 3rd-windiest month. For the whole year in context, see Dallas's year-round climate.

Daytime high
47°
11th warmest
Overnight low
36°
2nd coldest
Precipitation
6.9 in
16.8 wet days
Daylight
8 h 54 min
7:54 AM – 4:51 PM
Cloud cover
76%
11th clearest
Wind
5 mph
3rd windiest
Solar energy
1.27 kWh/m²
Travel score
1.1
out of 10

Dallas is county seat of Polk County, Oregon, United States.

Density
1,226/km²
people per km²
Founded
1845

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 45°F in the first days to 48°F by the end.

A typical January day in Dallas reaches about 47°F in the afternoon and slips back to 36°F overnight — a 11°F spread between the day's warmth and the night's chill. On most days the high lands between 39°F and 53°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)
14535
24535
34535
44535
54535
64535
74535
84635
94635
104636
114636
124636
134636
144636
154636
164636
174736
184736
194736
204736
214736
224736
234736
244736
254836
264836
274836
284836
294836
304836
314936

How January really feels in Dallas

Once humidity and wind are folded in, January averages 0 days that feel above 90°F and 25 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
25
wind chill below the day's low

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

Dallas 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
Jan47° / 36°6.916.81.891.1
Feb50° / 37°5.314.41.710.11.9
Mar54° / 39°5.916.81.111.62.8
Apr59° / 41°4.315.20.113.23.9
May66° / 46°2.610.1014.66.0
Jun72° / 51°1.56.4015.37.3
Jul80° / 55°0.31.7015.18.1
Aug81° / 55°0.52.4013.98.0
Sep75° / 51°1.55012.37.9
Oct63° / 45°3.910.7010.75.4
Nov51° / 39°6.916.40.39.42.2
Dec46° / 35°8.117.41.78.70.9

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 77%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12377
22278
32278
42377
52377
62278
72278
82278
92278
102278
112377
122377
132377
142377
152377
162476
172476
182575
192575
202575
212575
222575
232575
242575
252575
262575
272575
282476
292476
302476
312476

Chance of precipitation in January

Any precipitationSnow

Dallas gets around 6.9 in of rain and snow over 16.8 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 54% and peaks near 55% on the wettest days, and about 2 days bring snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
1557
2557
3557
4557
5557
6558
7558
8558
9557
10557
11557
12557
13557
14556
15556
16545
17545
18545
19545
20544
21544
22544
23544
24544
25534
26534
27524
28524
29514
30504
31504

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 5 mph in January.

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

0246810151015202531
Wind speed (mph)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 8 h 36 min at the start of January to 9 h 30 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 7:57 AM to 7:43 AM, and sunset from 4:36 PM to 5:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.67:574:36
28.77:574:37
38.77:574:37
48.77:574:38
58.77:574:39
68.77:574:40
78.77:574:41
88.87:574:42
98.87:574:43
108.87:564:44
118.87:564:45
128.87:564:46
138.97:554:48
148.97:554:49
158.97:554:50
168.97:544:51
179.07:544:52
189.07:534:53
199.07:524:55
209.17:524:56
219.17:514:57
229.17:504:58
239.27:505:00
249.27:495:01
259.27:485:02
269.37:475:04
279.37:465:05
289.37:465:06
299.47:455:08
309.47:445:09
319.57:435:11

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 1.27 kWh/m².

For context, solar energy here swings from a low near 1.07 kWh/m² to a high of 7.04 kWh/m² in July across the year — January's 1.27 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.1Dim
21.1Dim
31.1Dim
41.1Dim
51.1Dim
61.1Dim
71.1Dim
81.1Dim
91.2Dim
101.2Dim
111.2Dim
121.2Dim
131.2Dim
141.2Dim
151.2Dim
161.3Dim
171.3Dim
181.3Dim
191.3Dim
201.4Dim
211.4Dim
221.4Dim
231.4Dim
241.4Dim
251.5Dim
261.5Dim
271.5Dim
281.6Dim
291.6Dim
301.6Dim
311.6Dim
Planning a trip in January

Hazard calendar for Dallas

In seasonPeak

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

Dallas'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 Dallas?

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

1.1
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 Dallas.

What to pack for Dallas in January

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

In January, Dallas sees daytime highs around 47°F and nights near 36°F. Pack a warm layer and rain gear. About 17 days see rain.

a warm layerrain gear

Sea temperature near Dallas in January

The nearest coast averages about 50°F in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 40 mi away) is warmest in July at about 57°F and coldest in February near 50°F.

The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.

50°55°60°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°F)Comfort
Jan50Bracing
Feb50Bracing
Mar50Bracing
Apr51Bracing
May54Bracing
Jun57Bracing
Jul57Bracing
Aug57Bracing
Sep57Bracing
Oct55Bracing
Nov53Bracing
Dec51Bracing

UV index in Dallas 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 Dallas peaks around July 17 at about 8 (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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateVery highHighModerateLowJul 17UV 8Dec 17UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr5High
May8Very high
Jun7High
Jul8Very high
Aug7Very high
Sep5Moderate
Oct4Moderate
Nov1Low
Dec1Low

Air quality in Dallas 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 Dallas is worst in September — around 34 µg/m³ PM2.5 (moderate), about 5.1× the cleanest month (January, 7 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1531 µg/m³Jan 167 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb8Good
Mar11Good
Apr11Good
May9Good
Jun8Good
Jul7Good
Aug14Moderate
Sep34Moderate
Oct11Good
Nov10Good
Dec8Good
Location & terrain

Where is Dallas?

Dallas sits at 44.9°N, 123.3°W, 325 ft above sea level, in United States. The nearest listed city is Salem, 14 mi away.

Topography around Dallas

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

Within 2 miles, the terrain around Dallas has only modest variations in elevation — a maximum elevation change of 614 ft around an average of 397 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,657 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 4,738 ft.

The land around Dallas is covered by trees (49%) and grassland (28%) within 2 miles, trees (52%), cropland (26%) and grassland (20%) within 10 miles, and trees (63%) within 50 miles.

2 miles
614 ft
10 miles
2,657 ft
50 miles
4,738 ft
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Salem 14 mi · Keizer 15 mi · Four Corners 16 mi · Hayesville 17 mi · McMinnville 21 mi · Albany 22 mi · Corvallis 25 mi · Woodburn 27 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 Dallas (44.9193°, -123.317°, elevation 325 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).