Dumas weather in December

In December, Dumas sees average daytime highs of 50°F and overnight lows near 27°F, with 1.0 in of precipitation across 3.7 wet days and about 9.6 hours of daylight. It is the 11th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 53°F in the first days to 48°F by the end. The sky is clear or mostly clear about 56% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 42 min at the start of December to 9 h 36 min by month's end. Set against the rest of the year, December is Dumas's 5th-clearest and 8th-windiest month. For the whole year in context, see Dumas's year-round climate.

Daytime high: 50°; 11th warmest
Overnight low: 27°; 2nd coldest
Precipitation: 1.0 in; 3.7 wet days
Daylight: 9 h 36 min; 7:57 AM – 5:31 PM
Cloud cover: 39%; 5th clearest
Wind: 10 mph; 8th windiest
Solar energy: 2.86 kWh/m²
Travel score: 2.8; out of 10

Dumas is city in Texas, USA.

Density: 1,045/km²; people per km²

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

← November Dumas year-round climate January →Best places to visit in December

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 53°F in the first days to 48°F by the end.

A typical December day in Dumas reaches about 50°F in the afternoon and slips back to 27°F overnight — a 23°F spread between the day's warmth and the night's chill. On most days the high lands between 34°F and 65°F. Set against its neighbours, December runs about 9°F cooler than November and on par with January.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°F)	54	53	53	53	52	52	52	52	51	51	51	51	51	50	50	50	50	50	49	49	49	49	49	48	48	48	48	48	48	48	48
Avg low (°F)	30	29	29	29	29	29	28	28	28	28	28	28	28	27	27	27	27	27	27	27	26	26	26	26	26	26	26	26	26	26	26

	Avg high (°F)	Avg low (°F)
1	54	30
2	53	29
3	53	29
4	53	29
5	52	29
6	52	29
7	52	28
8	52	28
9	51	28
10	51	28
11	51	28
12	51	28
13	51	28
14	50	27
15	50	27
16	50	27
17	50	27
18	50	27
19	49	27
20	49	27
21	49	26
22	49	26
23	49	26
24	48	26
25	48	26
26	48	26
27	48	26
28	48	26
29	48	26
30	48	26
31	48	26

How December really feels in Dumas

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

heat index over the day's high

Days feeling ≤ 32°F

wind chill below the day's low

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

Dumas weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 9th-wettest month here — the current month is highlighted below.

Month	High / Low (°F)	Rainfall (inches)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	50° / 26°	0.7	2.8	1.6	9.8	2.7
Feb	54° / 29°	0.6	3.1	1.6	10.6	4.0
Mar	63° / 36°	1.4	5	1.4	11.7	6.4
Apr	71° / 44°	1.6	5.4	0.4	12.9	7.5
May	79° / 54°	2.2	7	0	13.9	7.2
Jun	89° / 63°	2.0	8.3	0	14.4	4.7
Jul	91° / 67°	2.0	8	0	14.2	3.8
Aug	89° / 66°	2.5	9.2	0	13.4	4.4
Sep	83° / 59°	1.3	5.7	0	12.2	6.9
Oct	72° / 47°	1.6	4.9	0.4	11.1	8.0
Nov	60° / 35°	0.8	3.4	1.2	10.1	5.7
Dec	50° / 27°	1.0	3.7	2.4	9.6	2.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 56% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 14% of December, with mostly cloudy or overcast conditions the remaining 30%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	70	70	70	71	71	71	72	73	73	73	73	73	72	72	72	71	71	70	70	69	69	68	68	67	67	66	66	67	67	67	67
Cloudier (%)	30	30	30	29	29	29	28	27	27	27	27	27	28	28	28	29	29	30	30	31	31	32	32	33	33	34	34	33	33	33	33

	Clearer (%)	Cloudier (%)
1	70	30
2	70	30
3	70	30
4	71	29
5	71	29
6	71	29
7	72	28
8	73	27
9	73	27
10	73	27
11	73	27
12	73	27
13	72	28
14	72	28
15	72	28
16	71	29
17	71	29
18	70	30
19	70	30
20	69	31
21	69	31
22	68	32
23	68	32
24	67	33
25	67	33
26	66	34
27	66	34
28	67	33
29	67	33
30	67	33
31	67	33

Chance of precipitation in December

Any precipitationSnow

Dumas gets around 1.0 in of rain and snow over 3.7 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 13% on the wettest days, and about 2 days bring snow.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	11	11	11	11	11	10	10	10	10	10	10	10	10	11	11	11	12	12	12	12	13	13	13	13	13	13	13	12	12	12	11
Snow chance (%)	6	6	6	6	6	6	6	6	6	6	6	6	7	7	7	8	8	8	9	9	9	9	9	9	9	9	9	9	8	8	7

	Rain chance (%)	Snow chance (%)
1	11	6
2	11	6
3	11	6
4	11	6
5	11	6
6	10	6
7	10	6
8	10	6
9	10	6
10	10	6
11	10	6
12	10	6
13	10	7
14	11	7
15	11	7
16	11	8
17	12	8
18	12	8
19	12	9
20	12	9
21	13	9
22	13	9
23	13	9
24	13	9
25	13	9
26	13	9
27	13	9
28	12	9
29	12	8
30	12	8
31	11	7

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.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Dry (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

Wind in December

Winds average 10 mph in December.

Across December, daily wind ranges from about 10 mph on the calmest days to 10 mph at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (mph)	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze

	Wind speed (mph)	Feels
1	10	light breeze
2	10	light breeze
3	10	light breeze
4	10	light breeze
5	10	light breeze
6	10	light breeze
7	10	light breeze
8	10	light breeze
9	10	light breeze
10	10	light breeze
11	10	light breeze
12	10	light breeze
13	10	light breeze
14	10	light breeze
15	10	light breeze
16	10	light breeze
17	10	light breeze
18	10	light breeze
19	10	light breeze
20	10	light breeze
21	10	light breeze
22	10	light breeze
23	10	light breeze
24	10	light breeze
25	10	light breeze
26	10	light breeze
27	10	light breeze
28	10	light breeze
29	10	light breeze
30	10	light breeze
31	10	light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 42 min at the start of December to 9 h 36 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 7:45 AM to 8:03 AM, and sunset from 5:30 PM to 5:39 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	9.7	9.7	9.7	9.7	9.7	9.7	9.7	9.6	9.6	9.6	9.6	9.6	9.6	9.6	9.6	9.6	9.6	9.6	9.6	9.6	9.6	9.6	9.6	9.6	9.6	9.6	9.6	9.6	9.6	9.6	9.6
Sunrise (AM)	7:45	7:46	7:47	7:48	7:49	7:50	7:50	7:51	7:52	7:53	7:53	7:54	7:55	7:55	7:56	7:57	7:57	7:58	7:58	7:59	7:59	8:00	8:00	8:01	8:01	8:02	8:02	8:02	8:03	8:03	8:03
Sunset (PM)	5:30	5:30	5:30	5:30	5:30	5:30	5:30	5:30	5:30	5:30	5:30	5:30	5:31	5:31	5:31	5:31	5:32	5:32	5:32	5:33	5:33	5:34	5:34	5:35	5:35	5:36	5:36	5:37	5:38	5:38	5:39

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	9.7	7:45	5:30
2	9.7	7:46	5:30
3	9.7	7:47	5:30
4	9.7	7:48	5:30
5	9.7	7:49	5:30
6	9.7	7:50	5:30
7	9.7	7:50	5:30
8	9.6	7:51	5:30
9	9.6	7:52	5:30
10	9.6	7:53	5:30
11	9.6	7:53	5:30
12	9.6	7:54	5:30
13	9.6	7:55	5:31
14	9.6	7:55	5:31
15	9.6	7:56	5:31
16	9.6	7:57	5:31
17	9.6	7:57	5:32
18	9.6	7:58	5:32
19	9.6	7:58	5:32
20	9.6	7:59	5:33
21	9.6	7:59	5:33
22	9.6	8:00	5:34
23	9.6	8:00	5:34
24	9.6	8:01	5:35
25	9.6	8:01	5:35
26	9.6	8:02	5:36
27	9.6	8:02	5:36
28	9.6	8:02	5:37
29	9.6	8:03	5:38
30	9.6	8:03	5:38
31	9.6	8:03	5:39

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.86 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.86 kWh/m² to a high of 7.44 kWh/m² in June across the year — December's 2.86 kWh/m² sits near the bottom.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	3.0	3.0	3.0	2.9	2.9	2.9	2.9	2.9	2.9	2.9	2.9	2.9	2.8	2.8	2.8	2.8	2.8	2.8	2.8	2.8	2.8	2.8	2.8	2.8	2.9	2.9	2.9	2.9	2.9	2.9	2.9
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	Solar energy (kWh/m²)	Level
1	3.0	Moderate
2	3.0	Moderate
3	3.0	Moderate
4	2.9	Moderate
5	2.9	Moderate
6	2.9	Moderate
7	2.9	Moderate
8	2.9	Moderate
9	2.9	Moderate
10	2.9	Moderate
11	2.9	Moderate
12	2.9	Moderate
13	2.8	Moderate
14	2.8	Moderate
15	2.8	Moderate
16	2.8	Moderate
17	2.8	Moderate
18	2.8	Moderate
19	2.8	Moderate
20	2.8	Moderate
21	2.8	Moderate
22	2.8	Moderate
23	2.8	Moderate
24	2.8	Moderate
25	2.9	Moderate
26	2.9	Moderate
27	2.9	Moderate
28	2.9	Moderate
29	2.9	Moderate
30	2.9	Moderate
31	2.9	Moderate

Planning a trip in December

Is December a good time to visit Dumas?

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

2.8

Sightseeing

11th-best month of the year

0.0

Beach & pool

11th-best month of the year

December is a weaker month for outdoor sightseeing in Dumas.

What to pack for Dumas in December

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

In December, Dumas sees daytime highs around 50°F and nights near 27°F. Pack a warm layer. About 4 days see rain.

a warm layer

UV index in Dumas in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 3. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Dumas peaks around July 11 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	3	4	5	9	9	11	11	10	8	5	4	3
Level	Moderate	Moderate	Moderate	Very high	Very high	Extreme	Extreme	Extreme	Very high	High	Moderate	Moderate

	UV index (midday)	Level
Jan	3	Moderate
Feb	4	Moderate
Mar	5	Moderate
Apr	9	Very high
May	9	Very high
Jun	11	Extreme
Jul	11	Extreme
Aug	10	Extreme
Sep	8	Very high
Oct	5	High
Nov	4	Moderate
Dec	3	Moderate

Location & terrain

Where is Dumas?

Dumas sits at 35.9°N, 102.0°W, 3,661 ft above sea level, in United States. The nearest listed city is Amarillo, 45 mi away.

Topography around Dumas

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

Within 2 miles, the terrain around Dumas has only modest variations in elevation — a maximum elevation change of 138 ft around an average of 3,658 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 623 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,713 ft.

The land around Dumas is covered by grassland (44%), artificial surfaces (28%) and cropland (24%) within 2 miles, grassland (55%) and cropland (43%) within 10 miles, and grassland (68%) and cropland (31%) within 50 miles.

2 miles

138 ft

grassland 44%

10 miles

623 ft

grassland 55%

50 miles

1,713 ft

grassland 68%

treesgrasslandcroplandartificial surfacesbare terrain

← November Dumas year-round climate January →Best places to visit in December

December weather nearby: Amarillo 45 mi · Pampa 62 mi · Hereford 76 mi · Liberal 100 mi · Plainview 117 mi · Clovis 122 mi · Garden City 158 mi · Lubbock 158 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

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 Dumas (35.8656°, -101.9732°, elevation 3,661 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).

	Avg high (°F)	Avg low (°F)
1	54	30
2	53	29
3	53	29
4	53	29
5	52	29
6	52	29
7	52	28
8	52	28
9	51	28
10	51	28
11	51	28
12	51	28
13	51	28
14	50	27
15	50	27
16	50	27
17	50	27
18	50	27
19	49	27
20	49	27
21	49	26
22	49	26
23	49	26
24	48	26
25	48	26
26	48	26
27	48	26
28	48	26
29	48	26
30	48	26
31	48	26

	Clearer (%)	Cloudier (%)
1	70	30
2	70	30
3	70	30
4	71	29
5	71	29
6	71	29
7	72	28
8	73	27
9	73	27
10	73	27
11	73	27
12	73	27
13	72	28
14	72	28
15	72	28
16	71	29
17	71	29
18	70	30
19	70	30
20	69	31
21	69	31
22	68	32
23	68	32
24	67	33
25	67	33
26	66	34
27	66	34
28	67	33
29	67	33
30	67	33
31	67	33

	Rain chance (%)	Snow chance (%)
1	11	6
2	11	6
3	11	6
4	11	6
5	11	6
6	10	6
7	10	6
8	10	6
9	10	6
10	10	6
11	10	6
12	10	6
13	10	7
14	11	7
15	11	7
16	11	8
17	12	8
18	12	8
19	12	9
20	12	9
21	13	9
22	13	9
23	13	9
24	13	9
25	13	9
26	13	9
27	13	9
28	12	9
29	12	8
30	12	8
31	11	7

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°F)	Avg low (°F)
1	54	30
2	53	29
3	53	29
4	53	29
5	52	29
6	52	29
7	52	28
8	52	28
9	51	28
10	51	28
11	51	28
12	51	28
13	51	28
14	50	27
15	50	27
16	50	27
17	50	27
18	50	27
19	49	27
20	49	27
21	49	26
22	49	26
23	49	26
24	48	26
25	48	26
26	48	26
27	48	26
28	48	26
29	48	26
30	48	26
31	48	26

	Clearer (%)	Cloudier (%)
1	70	30
2	70	30
3	70	30
4	71	29
5	71	29
6	71	29
7	72	28
8	73	27
9	73	27
10	73	27
11	73	27
12	73	27
13	72	28
14	72	28
15	72	28
16	71	29
17	71	29
18	70	30
19	70	30
20	69	31
21	69	31
22	68	32
23	68	32
24	67	33
25	67	33
26	66	34
27	66	34
28	67	33
29	67	33
30	67	33
31	67	33

	Rain chance (%)	Snow chance (%)
1	11	6
2	11	6
3	11	6
4	11	6
5	11	6
6	10	6
7	10	6
8	10	6
9	10	6
10	10	6
11	10	6
12	10	6
13	10	7
14	11	7
15	11	7
16	11	8
17	12	8
18	12	8
19	12	9
20	12	9
21	13	9
22	13	9
23	13	9
24	13	9
25	13	9
26	13	9
27	13	9
28	12	9
29	12	8
30	12	8
31	11	7

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°F)	Avg low (°F)
1	54	30
2	53	29
3	53	29
4	53	29
5	52	29
6	52	29
7	52	28
8	52	28
9	51	28
10	51	28
11	51	28
12	51	28
13	51	28
14	50	27
15	50	27
16	50	27
17	50	27
18	50	27
19	49	27
20	49	27
21	49	26
22	49	26
23	49	26
24	48	26
25	48	26
26	48	26
27	48	26
28	48	26
29	48	26
30	48	26
31	48	26

	Clearer (%)	Cloudier (%)
1	70	30
2	70	30
3	70	30
4	71	29
5	71	29
6	71	29
7	72	28
8	73	27
9	73	27
10	73	27
11	73	27
12	73	27
13	72	28
14	72	28
15	72	28
16	71	29
17	71	29
18	70	30
19	70	30
20	69	31
21	69	31
22	68	32
23	68	32
24	67	33
25	67	33
26	66	34
27	66	34
28	67	33
29	67	33
30	67	33
31	67	33

	Rain chance (%)	Snow chance (%)
1	11	6
2	11	6
3	11	6
4	11	6
5	11	6
6	10	6
7	10	6
8	10	6
9	10	6
10	10	6
11	10	6
12	10	6
13	10	7
14	11	7
15	11	7
16	11	8
17	12	8
18	12	8
19	12	9
20	12	9
21	13	9
22	13	9
23	13	9
24	13	9
25	13	9
26	13	9
27	13	9
28	12	9
29	12	8
30	12	8
31	11	7

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100