Lewisville weather in January

In January, Lewisville sees average daytime highs of 56°F and overnight lows near 38°F, with 2.7 in of precipitation across 6.9 wet days and about 10.1 hours of daylight. It is the 12th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 56°F through the month. The sky is clear or mostly clear about 44% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 54 min at the start of January to 10 h 24 min by month's end. Set against the rest of the year, January is Lewisville's 8th-clearest and 6th-windiest month. For the whole year in context, see Lewisville's year-round climate.

Daytime high
56°
12th warmest
Overnight low
38°
1st coldest
Precipitation
2.7 in
6.9 wet days
Daylight
10 hours
7:36 AM – 5:38 PM
Cloud cover
50%
8th clearest
Wind
9 mph
6th windiest
Solar energy
2.86 kWh/m²
Travel score
4.1
out of 10

Lewisville is city in Denton and Dallas counties in Texas, United States.

Density
940/km²
people per km²
Founded
1925

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 56°F through the month.

A typical January day in Lewisville reaches about 56°F in the afternoon and slips back to 38°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 41°F and 70°F. Set against its neighbours, January runs about 1°F cooler than December and about 4°F cooler than February.

20°40°60°80°151015202531
Avg high (°F)Avg low (°F)
15538
25538
35537
45537
55537
65537
75537
85537
95537
105537
115537
125537
135537
145537
155637
165637
175637
185637
195637
205637
215638
225638
235638
245738
255738
265738
275738
285738
295738
305738
315738

How January really feels in Lewisville

Once humidity and wind are folded in, January averages 0 days that feel above 90°F and 28 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
28
wind chill below the day's low

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

Lewisville weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan56° / 38°2.76.90.510.14.1
Feb60° / 41°2.77.10.610.85.2
Mar67° / 49°3.78.90.211.76.5
Apr75° / 56°4.18.2012.87.2
May82° / 65°5.210.9013.76.0
Jun90° / 73°3.27.7014.14.3
Jul94° / 76°1.85.40143.2
Aug94° / 76°2.05.2013.23.3
Sep87° / 69°2.86.1012.25.3
Oct77° / 58°3.87.5011.27.4
Nov66° / 47°3.56.80.110.36.7
Dec57° / 40°3.46.90.39.94.5

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 44% 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 46%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15545
25545
35545
45545
55446
65446
75446
85446
95446
105446
115347
125446
135347
145446
155446
165347
175446
185446
195446
205446
215446
225446
235446
245446
255446
265446
275347
285248
295347
305248
315248

Chance of precipitation in January

Any precipitationSnow

Lewisville gets around 2.7 in of rain and snow over 6.9 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 22% and peaks near 22% on the wettest days, and about 1 day brings snow.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
1222
2222
3222
4222
5222
6222
7222
8222
9222
10222
11222
12222
13222
14221
15221
16221
17221
18221
19221
20221
21221
22221
23221
24221
25221
26221
27222
28222
29222
30222
31222

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 95% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19253
29253
39253
49253
59352
69352
79352
89442
99442
109442
119541
129541
139541
149541
159541
169541
179631
189631
199631
209631
219631
229631
239631
249631
259631
269631
279631
289532
299532
309532
319532

Wind in January

Winds average 9 mph in January.

Across January, daily wind ranges from about 9 mph on the calmest days to 9 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
19light breeze
29light breeze
39light breeze
49light breeze
59light breeze
69light breeze
79light breeze
89light breeze
99light breeze
109light breeze
119light breeze
129light breeze
139light breeze
149light breeze
159light breeze
169light breeze
179light breeze
189light breeze
199light breeze
209light breeze
219light breeze
229light breeze
239light breeze
249light breeze
259light breeze
269light breeze
279light breeze
289light breeze
299light breeze
309light breeze
319light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 h 54 min at the start of January to 10 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over January. Sunrise moves from 7:36 AM to 7:30 AM, and sunset from 5:27 PM to 5:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.97:365:27
29.97:365:27
39.97:365:28
49.97:365:29
59.97:365:30
69.97:365:30
79.97:365:31
89.97:375:32
99.97:375:33
109.97:375:33
1110.07:375:34
1210.07:375:35
1310.07:365:36
1410.07:365:37
1510.07:365:38
1610.07:365:38
1710.17:365:39
1810.17:365:40
1910.17:355:41
2010.17:355:42
2110.17:355:43
2210.27:355:44
2310.27:345:45
2410.27:345:46
2510.27:335:47
2610.27:335:48
2710.37:335:48
2810.37:325:49
2910.37:325:50
3010.37:315:51
3110.47:305:52

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.86 kWh/m².

For context, solar energy here swings from a low near 2.58 kWh/m² to a high of 6.8 kWh/m² in July across the year — January's 2.86 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
12.6Moderate
22.6Moderate
32.7Moderate
42.7Moderate
52.7Moderate
62.7Moderate
72.7Moderate
82.7Moderate
92.7Moderate
102.8Moderate
112.8Moderate
122.8Moderate
132.8Moderate
142.8Moderate
152.8Moderate
162.9Moderate
172.9Moderate
182.9Moderate
192.9Moderate
203.0Moderate
213.0Moderate
223.0Moderate
233.0Moderate
243.0Moderate
253.1Moderate
263.1Moderate
273.1Moderate
283.1Moderate
293.2Moderate
303.2Moderate
313.2Moderate
Planning a trip in January

Hazard calendar for Lewisville

In seasonPeak

None of Lewisville's seasonal hazards are active in January. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Lewisville sits in the Atlantic hurricane belt; the season peaks August–October.

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

Is January a good time to visit Lewisville?

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

4.1
Sightseeing
10th-best month of the year
0.0
Beach & pool
12th-best month of the year

January is a reasonable time to visit Lewisville for sightseeing.

What to pack for Lewisville in January

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

In January, Lewisville sees daytime highs around 56°F and nights near 38°F. Worth packing: a warm layer. About 7 days see rain.

a warm layer

UV index in Lewisville in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Lewisville peaks around July 17 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 17UV 10Dec 21UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr9Very high
May9Very high
Jun10Very high
Jul10Extreme
Aug10Very high
Sep8Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Lewisville 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 Lewisville is worst in July — around 19 µg/m³ PM2.5 (moderate), about 2.6× the cleanest month (October, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1519 µg/m³Oct 248 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb8Good
Mar10Good
Apr11Good
May14Moderate
Jun16Moderate
Jul19Moderate
Aug15Moderate
Sep11Good
Oct8Good
Nov8Good
Dec8Good
Location & terrain

Where is Lewisville?

Lewisville sits at 33.0°N, 97.0°W, 525 ft above sea level, in United States. The nearest listed city is Highland Village, 4.3 mi away.

Topography around Lewisville

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

Within 2 miles, the terrain around Lewisville has only modest variations in elevation — a maximum elevation change of 177 ft around an average of 515 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 348 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 938 ft.

The land around Lewisville is covered by artificial surfaces (43%) and trees (28%) within 2 miles, artificial surfaces (38%), trees (25%) and grassland (20%) within 10 miles, and grassland (49%) and trees (25%) within 50 miles.

2 miles
177 ft
10 miles
348 ft
50 miles
938 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Highland Village 4.3 mi · Flower Mound 6.2 mi · Coppell 6.2 mi · The Colony 6.8 mi · Corinth 8.7 mi · Little Elm 8.7 mi · Carrollton 8.7 mi · Grapevine 9.3 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 Lewisville (33.0462°, -96.9942°, elevation 525 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).