Maryville weather in December

In December, Maryville sees average daytime highs of 51°F and overnight lows near 35°F, with 4.6 in of precipitation across 11.2 wet days and about 9.6 hours of daylight. It is the 11th-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 54°F in the first days to 49°F by the end. The sky is clear or mostly clear about 27% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 48 min at the start of December to 9 h 36 min by month's end. Set against the rest of the year, December is Maryville's 11th-clearest and 5th-windiest month. For the whole year in context, see Maryville's year-round climate.

Daytime high
51°
11th warmest
Overnight low
35°
3rd coldest
Precipitation
4.6 in
11.2 wet days
Daylight
9 h 36 min
7:44 AM – 5:20 PM
Cloud cover
64%
11th clearest
Wind
5 mph
5th windiest
Solar energy
2.12 kWh/m²
Travel score
2.4
out of 10

Maryville is city in Tennessee, USA.

Density
650/km²
people per km²
Founded
1785

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 54°F in the first days to 49°F by the end.

A typical December day in Maryville reaches about 51°F in the afternoon and slips back to 35°F overnight — a 16°F spread between the day's warmth and the night's chill. On most days the high lands between 38°F and 63°F. Set against its neighbours, December runs about 9°F cooler than November and about 3°F warmer than January.

20°40°60°151015202531
Avg high (°F)Avg low (°F)
15537
25437
35436
45336
55336
65336
75336
85236
95235
105235
115135
125135
135135
145135
155135
165134
175034
185034
195034
205034
215034
225034
235034
244933
254933
264933
274933
284933
294933
304933
314933

How December really feels in Maryville

Once humidity and wind are folded in, December averages 0 days that feel above 90°F and 29 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
29
wind chill below the day's low

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

Maryville weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan48° / 32°4.511.42.19.91.8
Feb52° / 34°4.311.32.410.62.7
Mar60° / 41°4.912.21.311.74.7
Apr69° / 49°4.311.10.112.96.2
May77° / 58°3.812.3013.96.5
Jun84° / 66°3.513.1014.45.3
Jul86° / 69°3.912.7014.24.6
Aug86° / 68°3.011.6013.44.9
Sep81° / 62°3.59.1012.26.5
Oct70° / 50°3.08.30.111.17.0
Nov60° / 40°3.89.10.310.14.9
Dec51° / 35°4.611.21.29.62.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 12% of December, with mostly cloudy or overcast conditions the remaining 60%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14654
24654
34456
44357
54357
64357
74159
84060
93961
104060
113961
123961
133862
143862
153862
163862
173862
183862
193961
203961
213961
223961
233862
243862
253862
263862
273763
283763
293763
303763
313763

Chance of precipitation in December

Any precipitationSnow

Maryville gets around 4.6 in of rain and snow over 11.2 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 36% and peaks near 37% on the wettest days, and about 1 day brings snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1342
2352
3352
4353
5363
6363
7363
8363
9373
10373
11374
12374
13374
14374
15374
16374
17374
18374
19375
20375
21375
22375
23365
24365
25365
26365
27355
28355
29355
30355
31356

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 96% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19541
29541
39541
49541
59541
69541
79541
89640
99640
109640
119640
129640
139730
149730
159730
169730
179820
189820
199820
209721
219721
229721
239721
249721
259721
269721
279721
289721
299721
309721
319721

Wind in December

Winds average 5 mph in December.

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

0246810151015202531
Wind speed (mph)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 48 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 12 minutes over December. Sunrise moves from 7:33 AM to 7:51 AM, and sunset from 5:18 PM to 5:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.87:335:18
29.77:345:18
39.77:355:18
49.77:365:18
59.77:365:18
69.77:375:18
79.77:385:18
89.77:395:18
99.67:405:18
109.67:405:18
119.67:415:19
129.67:425:19
139.67:425:19
149.67:435:19
159.67:445:19
169.67:445:20
179.67:455:20
189.67:465:20
199.67:465:21
209.67:475:21
219.67:475:22
229.67:485:22
239.67:485:23
249.67:495:23
259.67:495:24
269.67:495:24
279.67:505:25
289.67:505:25
299.67:505:26
309.67:515:27
319.67:515:27

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.12 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.12 kWh/m² to a high of 6.07 kWh/m² in June across the year — December's 2.12 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.3Moderate
22.3Moderate
32.3Moderate
42.2Moderate
52.2Moderate
62.2Moderate
72.2Moderate
82.1Moderate
92.1Moderate
102.1Moderate
112.1Moderate
122.1Moderate
132.1Moderate
142.1Moderate
152.1Moderate
162.1Moderate
172.1Moderate
182.1Moderate
192.1Moderate
202.1Moderate
212.1Moderate
222.1Moderate
232.1Moderate
242.1Moderate
252.1Moderate
262.1Moderate
272.1Moderate
282.1Moderate
292.1Moderate
302.1Moderate
312.1Moderate
Planning a trip in December

Is December a good time to visit Maryville?

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

2.4
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 Maryville.

What to pack for Maryville in December

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

In December, Maryville sees daytime highs around 51°F and nights near 35°F. Pack a warm layer. Worth having: rain gear. About 11 days see rain.

a warm layerrain gear

UV index in Maryville in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Maryville peaks around July 11 at about 10 (very high) — 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 11UV 10Dec 19UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7High
May8Very high
Jun10Very high
Jul10Very high
Aug8Very high
Sep7High
Oct5Moderate
Nov4Moderate
Dec2Moderate

Air quality in Maryville 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 Maryville is worst in July — around 18 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (December, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1518 µg/m³Dec 237 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb8Good
Mar11Good
Apr11Good
May13Moderate
Jun16Moderate
Jul18Moderate
Aug15Moderate
Sep11Good
Oct8Good
Nov9Good
Dec7Good
Location & terrain

Where is Maryville?

Maryville sits at 35.8°N, 84.0°W, 935 ft above sea level, in United States. The nearest listed city is Farragut, 14 mi away.

Topography around Maryville

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

Within 2 miles, the terrain around Maryville has only modest variations in elevation — a maximum elevation change of 420 ft around an average of 955 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,962 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 5,981 ft.

The land around Maryville is covered by trees (48%), artificial surfaces (25%) and grassland (24%) within 2 miles, trees (59%) and grassland (31%) within 10 miles, and trees (80%) within 50 miles.

2 miles
420 ft
10 miles
1,962 ft
50 miles
5,981 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Farragut 14 mi · Knoxville 14 mi · Sevierville 24 mi · Oak Ridge 24 mi · Gatlinburg 26 mi · Morristown 49 mi · Cleveland 66 mi · Greeneville 70 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 Maryville (35.7565°, -83.9705°, elevation 935 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).