Las Cruces weather in December

In December, Las Cruces sees average daytime highs of 56°F and overnight lows near 34°F, with 0.7 in of precipitation across 3.3 wet days and about 9.9 hours of daylight. It is the 12th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 58°F in the first days to 54°F by the end. The sky is clear or mostly clear about 57% of the time in December, and the air most often feels dry.

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

Daytime high
56°
12th warmest
Overnight low
34°
2nd coldest
Precipitation
0.7 in
3.3 wet days
Daylight
9 h 54 min
7:07 AM – 5:00 PM
Cloud cover
37%
9th clearest
Wind
6 mph
9th windiest
Solar energy
3.37 kWh/m²
Travel score
4.5
out of 10

Las Cruces is city in and county seat of Doña Ana County, New Mexico, United States.

Founded
1849

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 58°F in the first days to 54°F by the end.

A typical December day in Las Cruces reaches about 56°F in the afternoon and slips back to 34°F overnight — a 22°F spread between the day's warmth and the night's chill. On most days the high lands between 45°F and 66°F. Set against its neighbours, December runs about 9°F cooler than November and on par with January.

20°40°60°80°151015202531
Avg high (°F)Avg low (°F)
15936
25836
35836
45836
55835
65735
75735
85735
95735
105635
115634
125634
135634
145634
155634
165534
175533
185533
195533
205533
215433
225433
235433
245433
255433
265433
275433
285433
295433
305433
315433

How December really feels in Las Cruces

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

Las Cruces weather by month

How December compares with the rest of the year at a glance. December is the 12th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan56° / 34°0.530.610.14.8
Feb62° / 38°0.52.90.210.86.5
Mar69° / 44°0.41.9011.88.1
Apr77° / 50°0.21.2012.88.8
May86° / 59°0.31.7013.66.4
Jun94° / 68°0.42.1014.13.4
Jul94° / 71°1.37013.93.2
Aug92° / 69°1.06.2013.23.9
Sep86° / 63°1.13.8012.26.0
Oct77° / 52°0.83.1011.28.4
Nov65° / 41°0.62.20.310.37.3
Dec56° / 34°0.73.30.69.94.5

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 57% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 13% of December, with mostly cloudy or overcast conditions the remaining 29%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17327
27327
37327
47426
57426
67426
77426
87525
97525
107525
117525
127525
137525
147525
157426
167426
177327
187228
197129
207030
216931
226832
236733
246634
256535
266436
276436
286436
296436
306436
316535

Chance of precipitation in December

Any precipitationSnow

Las Cruces gets around 0.7 in of rain and snow over 3.3 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 11% and peaks near 12% on the wettest days, and about 1 day brings snow.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
1112
2112
3112
4112
5112
6112
7111
8111
9101
10101
11101
12101
1391
1491
1591
1691
17101
18102
19102
20102
21102
22113
23113
24113
25113
26123
27123
28123
29123
30123
31123

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December 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 December

Winds average 6 mph in December.

Across December, daily wind ranges from about 5 mph on the calmest days to 6 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
295calm
305calm
315calm

Sunrise & sunset in December

DaylightNight

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

Days shrink by about 6 minutes over December. Sunrise moves from 6:56 AM to 7:13 AM, and sunset from 4:58 PM to 5:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.06:564:58
210.06:574:58
310.06:574:58
410.06:584:58
510.06:594:58
610.07:004:58
710.07:014:58
89.97:014:58
99.97:024:58
109.97:034:58
119.97:034:59
129.97:044:59
139.97:054:59
149.97:054:59
159.97:065:00
169.97:075:00
179.97:075:00
189.97:085:01
199.97:085:01
209.97:095:02
219.97:095:02
229.97:105:02
239.97:105:03
249.97:115:03
259.97:115:04
269.97:115:04
279.97:125:05
289.97:125:06
299.97:125:06
309.97:135:07
319.97:135:07

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.37 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.37 kWh/m² to a high of 8.25 kWh/m² in June across the year — December's 3.37 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.5Moderate
23.5Moderate
33.5Moderate
43.5Moderate
53.4Moderate
63.4Moderate
73.4Moderate
83.4Moderate
93.4Moderate
103.4Moderate
113.4Moderate
123.4Moderate
133.4Moderate
143.3Moderate
153.3Moderate
163.3Moderate
173.3Moderate
183.3Moderate
193.3Moderate
203.3Moderate
213.3Moderate
223.3Moderate
233.3Moderate
243.3Moderate
253.3Moderate
263.3Moderate
273.4Moderate
283.4Moderate
293.4Moderate
303.4Moderate
313.4Moderate
Planning a trip in December

Is December a good time to visit Las Cruces?

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

4.5
Sightseeing
9th-best month of the year
0.0
Beach & pool
11th-best month of the year

December is a reasonable time to visit Las Cruces for sightseeing.

What to pack for Las Cruces in December

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

In December, Las Cruces sees daytime highs around 56°F and nights near 34°F. Worth packing: a warm layer. About 3 days see rain.

a warm layer

UV index in Las Cruces in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Las Cruces peaks around July 14 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 14UV 12Dec 20UV 4
UV index (midday)Level
Jan4Moderate
Feb6High
Mar7Very high
Apr10Very high
May10Very high
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep10Very high
Oct7High
Nov5High
Dec4Moderate
Location & terrain

Where is Las Cruces?

Las Cruces sits at 32.3°N, 106.8°W, 3,907 ft above sea level, in United States. The nearest listed city is Sunland Park, 37 mi away.

Topography around Las Cruces

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

Within 2 miles, the terrain around Las Cruces has only modest variations in elevation — a maximum elevation change of 292 ft around an average of 3,937 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,906 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 4,948 ft.

The land around Las Cruces is covered by artificial surfaces (75%) within 2 miles, shrubs (53%) within 10 miles, and shrubs (49%) and bare terrain (30%) within 50 miles.

2 miles
292 ft
10 miles
1,906 ft
50 miles
4,948 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrain
December weather nearby: Sunland Park 37 mi · El Paso 42 mi · Ciudad Juárez 45 mi · Socorro 53 mi · Horizon City 54 mi · Socorro Mission Number 1 Colonia 55 mi · Alamogordo 63 mi · Nuevo Casas Grandes 147 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 Las Cruces (32.3123°, -106.7783°, elevation 3,907 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).