Sherman weather in December

In December, Sherman sees average daytime highs of 55°F and overnight lows near 38°F, with 3.3 in of precipitation across 6.9 wet days and about 9.8 hours of daylight. It is the 11th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 58°F in the first days to 53°F by the end. The sky is clear or mostly clear about 44% 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 Sherman's 8th-clearest and 7th-windiest month. For the whole year in context, see Sherman's year-round climate.

Daytime high
55°
11th warmest
Overnight low
38°
2nd coldest
Precipitation
3.3 in
6.9 wet days
Daylight
9 h 48 min
7:29 AM – 5:16 PM
Cloud cover
51%
8th clearest
Wind
8 mph
7th windiest
Solar energy
2.48 kWh/m²
Travel score
3.8
out of 10

Sherman is city in and county seat of Grayson, Texas, United States.

Density
379/km²
people per km²
Founded
1846

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 53°F by the end.

A typical December day in Sherman reaches about 55°F in the afternoon and slips back to 38°F overnight — a 16°F spread between the day's warmth and the night's chill. On most days the high lands between 41°F and 68°F. Set against its neighbours, December runs about 9°F cooler than November and about 2°F warmer than January.

20°40°60°80°151015202531
Avg high (°F)Avg low (°F)
15841
25841
35841
45740
55740
65740
75640
85640
95639
105639
115539
125539
135539
145538
155538
165538
175438
185438
195438
205438
215437
225437
235337
245337
255337
265337
275337
285337
295337
305337
315337

How December really feels in Sherman

Once humidity and wind are folded in, December averages 0 days that feel above 90°F and 14 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
14
wind chill below the day's low

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

Sherman weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan53° / 36°2.56.70.7103.4
Feb58° / 40°2.67.20.710.74.5
Mar65° / 47°4.09.40.411.76.1
Apr73° / 55°4.69.1012.87.0
May80° / 64°6.011.9013.76.2
Jun88° / 72°3.78.8014.24.6
Jul93° / 75°2.06.30143.6
Aug92° / 75°2.05.8013.23.6
Sep85° / 68°3.36.8012.25.8
Oct75° / 56°4.27.9011.27.4
Nov64° / 46°3.47.10.110.36.2
Dec55° / 38°3.36.90.49.83.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 44% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 10% of December, with mostly cloudy or overcast conditions the remaining 45%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15941
25842
35842
45743
55644
65644
75644
85545
95545
105446
115446
125446
135446
145446
155446
165446
175446
185446
195446
205446
215446
225446
235446
245446
255446
265347
275347
285347
295347
305347
315347

Chance of precipitation in December

Any precipitationSnow

Sherman gets around 3.3 in of rain and snow over 6.9 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 22% and peaks near 24% on the wettest days, and about 0 day brings snow.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
1221
2221
3221
4221
5231
6231
7241
8241
9241
10241
11241
12241
13241
14241
15241
16241
17241
18231
19231
20221
21221
22221
23211
24211
25212
26202
27202
28202
29212
30212
31212

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 94% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
18974
29163
39163
49163
59163
69163
79262
89352
99352
109352
119541
129541
139541
149541
159631
169631
179631
189631
199631
209631
219631
229631
239631
249541
259541
269541
279442
289352
299352
309352
319352

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 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 7:18 AM to 7:36 AM, and sunset from 5:14 PM to 5:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.97:185:14
29.97:195:14
39.97:205:14
49.97:215:14
59.97:225:14
69.97:225:14
79.87:235:14
89.87:245:14
99.87:255:14
109.87:255:14
119.87:265:15
129.87:275:15
139.87:275:15
149.87:285:15
159.87:295:16
169.87:295:16
179.87:305:16
189.87:305:17
199.87:315:17
209.87:315:17
219.87:325:18
229.87:325:18
239.87:335:19
249.87:335:19
259.87:345:20
269.87:345:20
279.87:355:21
289.87:355:22
299.87:355:22
309.87:355:23
319.87:365:23

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.48 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.48 kWh/m² to a high of 6.76 kWh/m² in July across the year — December's 2.48 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.6Moderate
22.6Moderate
32.6Moderate
42.6Moderate
52.6Moderate
62.5Moderate
72.5Moderate
82.5Moderate
92.5Moderate
102.5Moderate
112.5Moderate
122.5Moderate
132.5Moderate
142.5Moderate
152.4Moderate
162.4Moderate
172.4Moderate
182.4Moderate
192.4Moderate
202.4Moderate
212.5Moderate
222.5Moderate
232.5Moderate
242.5Moderate
252.5Moderate
262.5Moderate
272.5Moderate
282.5Moderate
292.5Moderate
302.5Moderate
312.5Moderate
Planning a trip in December

Is December a good time to visit Sherman?

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

3.8
Sightseeing
9th-best month of the year
0.0
Beach & pool
11th-best month of the year

December is a weaker month for outdoor sightseeing in Sherman.

What to pack for Sherman in December

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

In December, Sherman sees daytime highs around 55°F and nights near 38°F. Worth packing: a warm layer. About 7 days see rain.

a warm layer

UV index in Sherman 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 Sherman peaks around June 23 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 23UV 10Dec 22UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr9Very high
May9Very high
Jun10Very high
Jul10Very high
Aug10Very high
Sep8Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Sherman 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 Sherman is worst in July — around 18 µg/m³ PM2.5 (moderate), about 3.1× the cleanest month (November, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1618 µg/m³Nov 216 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb8Good
Mar10Good
Apr10Good
May13Moderate
Jun15Moderate
Jul18Moderate
Aug14Moderate
Sep10Good
Oct6Good
Nov6Good
Dec6Good
Location & terrain

Where is Sherman?

Sherman sits at 33.6°N, 96.6°W, 735 ft above sea level, in United States. The nearest listed city is Denison, 9.3 mi away.

Topography around Sherman

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

Within 2 miles, the terrain around Sherman has only modest variations in elevation — a maximum elevation change of 180 ft around an average of 735 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 397 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 807 ft.

The land around Sherman is covered by trees (41%), artificial surfaces (30%) and grassland (24%) within 2 miles, grassland (49%) and trees (32%) within 10 miles, and grassland (52%) and trees (29%) within 50 miles.

2 miles
180 ft
10 miles
397 ft
50 miles
807 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Denison 9.3 mi · Celina 24 mi · Durant 29 mi · Prosper 30 mi · Gainesville 30 mi · McKinney 30 mi · Frisco 35 mi · The Trails of Frisco 36 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 Sherman (33.6357°, -96.6089°, elevation 735 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).