Roswell weather in December

In December, Roswell sees average daytime highs of 54°F and overnight lows near 31°F, with 0.7 in of precipitation across 3.1 wet days and about 9.8 hours of daylight. It is the 12th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 57°F in the first days to 52°F by the end. The sky is clear or mostly clear about 60% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 54 min at the start of December to 9 h 48 min by month's end. Set against the rest of the year, December is Roswell's 8th-clearest and 12th-windiest month. For the whole year in context, see Roswell's year-round climate.

Daytime high
54°
12th warmest
Overnight low
31°
2nd coldest
Precipitation
0.7 in
3.1 wet days
Daylight
9 h 48 min
7:00 AM – 4:48 PM
Cloud cover
37%
8th clearest
Wind
7 mph
12th windiest
Solar energy
3.19 kWh/m²
Travel score
4.0
out of 10

Roswell is city in and the county seat of Chaves County, New Mexico, United States.

Density
627/km²
people per km²
Founded
1869

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 57°F in the first days to 52°F by the end.

A typical December day in Roswell reaches about 54°F in the afternoon and slips back to 31°F overnight — a 23°F spread between the day's warmth and the night's chill. On most days the high lands between 40°F and 67°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)
15734
25733
35733
45633
55633
65632
75632
85532
95532
105532
115532
125531
135531
145431
155431
165431
175431
185330
195330
205330
215330
225330
235230
245229
255229
265229
275229
285229
295129
305129
315229

How December really feels in Roswell

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.

Roswell weather by month

How December compares with the rest of the year at a glance. December is the 12th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan55° / 31°0.52.61.2104.3
Feb60° / 35°0.52.70.910.86.0
Mar68° / 41°0.83.30.311.77.7
Apr77° / 48°0.82.60.112.88.4
May85° / 58°1.44.8013.76.2
Jun94° / 67°0.95014.23.4
Jul94° / 70°1.46.40143.2
Aug91° / 69°1.57.6013.23.9
Sep85° / 62°1.66.1012.26.2
Oct75° / 50°1.34.30.211.28.2
Nov63° / 38°0.62.60.610.36.8
Dec54° / 31°0.73.11.39.84.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 60% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 11% of December, with mostly cloudy or overcast conditions the remaining 28%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17426
27327
37327
47327
57327
67327
77426
87426
97426
107426
117426
127525
137426
147426
157426
167327
177228
187228
197129
207129
217030
227030
236931
246832
256832
266832
276832
286832
296832
306832
316931

Chance of precipitation in December

Any precipitationSnow

Roswell gets around 0.7 in of rain and snow over 3.1 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 10% and peaks near 11% on the wettest days, and about 1 day brings snow.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
1114
2114
3114
4114
5104
6104
7103
893
993
1092
1182
1282
1382
1482
1582
1692
1793
1893
1993
20104
21104
22105
23115
24116
25116
26116
27116
28117
29117
30106
31106

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 7 mph in December, the calmest month.

Across December, daily wind ranges from about 7 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
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 54 min at the start of December to 9 h 48 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 6:49 AM to 7:07 AM, and sunset from 4:46 PM to 4:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.96:494:46
29.96:504:46
39.96:514:46
49.96:524:46
59.96:534:46
69.96:534:46
79.96:544:46
89.96:554:46
99.86:564:47
109.86:564:47
119.86:574:47
129.86:584:47
139.86:584:47
149.86:594:48
159.87:004:48
169.87:004:48
179.87:014:49
189.87:014:49
199.87:024:49
209.87:034:50
219.87:034:50
229.87:044:51
239.87:044:51
249.87:044:52
259.87:054:52
269.87:054:53
279.87:064:53
289.87:064:54
299.87:064:54
309.87:074:55
319.87:074:56

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.19 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.19 kWh/m² to a high of 7.82 kWh/m² in June across the year — December's 3.19 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.3Moderate
23.3Moderate
33.3Moderate
43.3Moderate
53.2Moderate
63.2Moderate
73.2Moderate
83.2Moderate
93.2Moderate
103.2Moderate
113.2Moderate
123.2Moderate
133.2Moderate
143.2Moderate
153.2Moderate
163.1Moderate
173.1Moderate
183.1Moderate
193.1Moderate
203.1Moderate
213.1Moderate
223.1Moderate
233.2Moderate
243.2Moderate
253.2Moderate
263.2Moderate
273.2Moderate
283.2Moderate
293.2Moderate
303.3Moderate
313.3Moderate
Planning a trip in December

Is December a good time to visit Roswell?

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

4.0
Sightseeing
9th-best month of the year
0.0
Beach & pool
11th-best month of the year

December is a reasonable time to visit Roswell for sightseeing.

What to pack for Roswell in December

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

In December, Roswell sees daytime highs around 54°F and nights near 31°F. Worth packing: a warm layer. About 3 days see rain.

a warm layer

UV index in Roswell in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December 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 Roswell peaks around June 23 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 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 highHighModerateJun 23UV 12Dec 20UV 3
UV index (midday)Level
Jan4Moderate
Feb5High
Mar7High
Apr10Extreme
May9Very high
Jun12Extreme
Jul12Extreme
Aug11Extreme
Sep9Very high
Oct6High
Nov5Moderate
Dec3Moderate

Air quality in Roswell in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Roswell is worst in December — around 23 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (August, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateDec 1822 µg/m³Aug 249 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb17Moderate
Mar13Moderate
Apr11Good
May10Good
Jun11Good
Jul10Good
Aug9Good
Sep9Good
Oct9Good
Nov16Moderate
Dec23Moderate
Location & terrain

Where is Roswell?

Roswell sits at 33.4°N, 104.5°W, 3,576 ft above sea level, in United States. The nearest listed city is Carlsbad, 70 mi away.

Topography around Roswell

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

Within 2 miles, the terrain around Roswell has only modest variations in elevation — a maximum elevation change of 95 ft around an average of 3,593 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 719 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 6,900 ft.

The land around Roswell is covered by artificial surfaces (55%) and grassland (22%) within 2 miles, grassland (72%) within 10 miles, and grassland (91%) within 50 miles.

2 miles
95 ft
10 miles
719 ft
50 miles
6,900 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrain
December weather nearby: Carlsbad 70 mi · Alamogordo 90 mi · Hobbs 94 mi · Clovis 103 mi · Las Cruces 150 mi · Horizon City 153 mi · Lubbock 154 mi · Hereford 157 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 Roswell (33.3944°, -104.5249°, elevation 3,576 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).