Bryan weather in December

In December, Bryan sees average daytime highs of 62°F and overnight lows near 43°F, with 3.8 in of rain across 8.7 wet days and about 10.1 hours of daylight. It is the 11th-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 65°F in the first days to 60°F by the end. The sky is clear or mostly clear about 38% of the time in December, and the air most often feels dry.

Daylight stretches from about 10 h 12 min at the start of December to 10 hours by month's end. Set against the rest of the year, December is Bryan's 10th-clearest and 6th-windiest month. For the whole year in context, see Bryan's year-round climate.

Daytime high
62°
11th warmest
Overnight low
43°
2nd coldest
Rainfall
3.8 in
8.7 wet days
Daylight
10 hours
7:21 AM – 5:22 PM
Cloud cover
57%
10th clearest
Wind
8 mph
6th windiest
Solar energy
2.58 kWh/m²
Travel score
5.6
out of 10

Bryan is city and the county seat of Brazos County, Texas, United States.

Density
695/km²
people per km²
Founded
1872

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 65°F in the first days to 60°F by the end.

A typical December day in Bryan reaches about 62°F in the afternoon and slips back to 43°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 49°F and 75°F. Set against its neighbours, December runs about 8°F cooler than November and about 2°F warmer than January.

20°40°60°80°151015202531
Avg high (°F)Avg low (°F)
16546
26546
36545
46545
56445
66445
76445
86444
96444
106344
116344
126344
136344
146344
156243
166243
176243
186243
196243
206243
216143
226142
236142
246142
256142
266142
276042
286042
296042
306042
316042

How December really feels in Bryan

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

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Bryan weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan61° / 42°3.48.310.25.2
Feb64° / 45°3.08.910.95.9
Mar71° / 52°3.6911.86.8
Apr78° / 58°4.08.512.77.0
May85° / 67°4.21013.55.3
Jun91° / 73°3.31013.93.7
Jul95° / 76°1.9713.82.8
Aug95° / 76°2.57.213.12.6
Sep90° / 70°3.07.612.24.3
Oct81° / 60°4.07.711.26.9
Nov70° / 50°3.47.910.47.0
Dec62° / 43°3.88.710.15.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% 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 52%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25248
35149
45050
55050
65050
74951
84852
94951
104852
114852
124852
134951
144852
154852
164951
174951
184951
194951
204852
214852
224852
234852
244753
254654
264654
274753
284753
294753
304654
314753

Chance of precipitation in December

Any precipitation

Bryan gets around 3.8 in of rain over 8.7 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 28% and peaks near 31% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
126
226
326
427
527
628
728
829
929
1030
1130
1230
1331
1431
1531
1631
1731
1831
1931
2030
2130
2229
2328
2428
2527
2627
2726
2826
2926
3025
3125

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 80% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1759115
2769105
3769105
4778105
5778105
6778105
7788104
8788104
9788104
1079894
1179894
1279894
1380893
1480893
1580983
1680983
1780983
1881982
1981982
2081982
2182972
2281973
2381973
2481973
2582873
2682873
2782873
2882873
2983773
3083773
3184772

Wind in December

Winds average 8 mph in December.

Across December, daily wind ranges from about 8 mph on the calmest days to 8 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
18light breeze
28light breeze
38light breeze
48light breeze
58light breeze
68light breeze
78light breeze
88light breeze
98light breeze
108light breeze
118light breeze
128light breeze
138light breeze
148light breeze
158light breeze
168light breeze
178light breeze
188light breeze
198light breeze
208light breeze
218light breeze
228light breeze
238light breeze
248light breeze
258light breeze
268light breeze
278light breeze
288light breeze
298light breeze
308light breeze
318light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 10 h 12 min at the start of December to 10 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over December. Sunrise moves from 7:10 AM to 7:27 AM, and sunset from 5:20 PM to 5:30 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.27:105:20
210.17:115:20
310.17:125:20
410.17:135:20
510.17:145:20
610.17:145:20
710.17:155:20
810.17:165:20
910.17:165:21
1010.17:175:21
1110.17:185:21
1210.07:185:21
1310.07:195:21
1410.07:205:22
1510.07:205:22
1610.07:215:22
1710.07:215:23
1810.07:225:23
1910.07:235:24
2010.07:235:24
2110.07:245:24
2210.07:245:25
2310.07:255:25
2410.07:255:26
2510.07:255:26
2610.07:265:27
2710.07:265:27
2810.07:275:28
2910.07:275:29
3010.07:275:29
3110.07:275:30

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.58 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.58 kWh/m² to a high of 6.56 kWh/m² in July across the year — December's 2.58 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.7Moderate
22.7Moderate
32.7Moderate
42.7Moderate
52.6Moderate
62.6Moderate
72.6Moderate
82.6Moderate
92.6Moderate
102.6Moderate
112.6Moderate
122.6Moderate
132.6Moderate
142.6Moderate
152.5Moderate
162.5Moderate
172.5Moderate
182.6Moderate
192.6Moderate
202.6Moderate
212.6Moderate
222.6Moderate
232.6Moderate
242.6Moderate
252.6Moderate
262.6Moderate
272.6Moderate
282.6Moderate
292.6Moderate
302.6Moderate
312.6Moderate
Planning a trip in December

Is December a good time to visit Bryan?

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

5.6
Sightseeing
6th-best month of the year
1.3
Beach & pool
11th-best month of the year

December is a reasonable time to visit Bryan for sightseeing.

What to pack for Bryan in December

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

In December, Bryan sees daytime highs around 62°F and nights near 43°F. Worth packing: a warm layer and rain gear. About 9 days see rain.

a warm layerrain gear

UV index in Bryan 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 Bryan peaks around July 24 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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 24UV 11Dec 21UV 4
UV index (midday)Level
Jan4Moderate
Feb6High
Mar7High
Apr9Very high
May10Extreme
Jun10Extreme
Jul11Extreme
Aug11Extreme
Sep8Very high
Oct6High
Nov5Moderate
Dec4Moderate

Air quality in Bryan 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 Bryan is worst in July — around 21 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (December, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1520 µg/m³Dec 187 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb8Good
Mar11Good
Apr11Good
May15Moderate
Jun17Moderate
Jul21Moderate
Aug15Moderate
Sep12Good
Oct8Good
Nov7Good
Dec7Good
Location & terrain

Where is Bryan?

Bryan sits at 30.7°N, 96.4°W, 374 ft above sea level, in United States. The nearest listed city is College Station, 3.7 mi away.

Topography around Bryan

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

Within 2 miles, the terrain around Bryan has only modest variations in elevation — a maximum elevation change of 115 ft around an average of 341 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 279 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 538 ft.

The land around Bryan is covered by trees (39%) and artificial surfaces (39%) within 2 miles, grassland (47%) and trees (34%) within 10 miles, and grassland (53%) and trees (39%) within 50 miles.

2 miles
115 ft
10 miles
279 ft
50 miles
538 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: College Station 3.7 mi · Brenham 35 mi · Huntsville 49 mi · Conroe 60 mi · Taylor 62 mi · Cypress 63 mi · The Woodlands 63 mi · Temple 65 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 Bryan (30.6744°, -96.37°, elevation 374 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).