Wildwood weather in December

In December, Wildwood sees average daytime highs of 44°F and overnight lows near 29°F, with 2.5 in of precipitation across 8.1 wet days and about 9.4 hours of daylight. It is the 11th-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 48°F in the first days to 41°F by the end. The sky is clear or mostly clear about 31% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 30 min at the start of December to 9 h 18 min by month's end. Set against the rest of the year, December is Wildwood's 10th-clearest and 6th-windiest month. For the whole year in context, see Wildwood's year-round climate.

Daytime high
44°
11th warmest
Overnight low
29°
3rd coldest
Precipitation
2.5 in
8.1 wet days
Daylight
9 h 18 min
7:19 AM – 4:38 PM
Cloud cover
63%
10th clearest
Wind
7 mph
6th windiest
Solar energy
1.94 kWh/m²
Travel score
0.8
out of 10

Wildwood is exurban suburb of St. Louis, located in far western St. Louis County, Missouri, United States.

Density
207/km²
people per km²

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 48°F in the first days to 41°F by the end.

A typical December day in Wildwood reaches about 44°F in the afternoon and slips back to 29°F overnight — a 15°F spread between the day's warmth and the night's chill. On most days the high lands between 30°F and 59°F. Set against its neighbours, December runs about 11°F cooler than November and about 4°F warmer than January.

20°40°60°151015202531
Avg high (°F)Avg low (°F)
14933
24832
34832
44732
54731
64631
74631
84630
94530
104530
114530
124429
134429
144429
154429
164429
174328
184328
194328
204328
214328
224228
234228
244227
254227
264227
274227
284227
294227
304126
314126

How December really feels in Wildwood

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.

Wildwood weather by month

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

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan40° / 25°2.77.92.99.60.0
Feb45° / 28°2.47.62.710.51.1
Mar56° / 37°3.710.81.411.73.7
Apr67° / 47°4.511.50.2135.8
May75° / 57°4.913.2014.16.3
Jun84° / 66°3.911.1014.65.4
Jul88° / 70°3.310.3014.44.4
Aug87° / 67°3.19.5013.55.0
Sep80° / 59°3.28012.37.0
Oct68° / 48°3.48.30116.7
Nov55° / 38°3.58.40.69.93.6
Dec44° / 29°2.58.12.19.40.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% 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 58%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24654
34555
44456
54357
64357
74357
84258
94159
104159
114159
124060
134060
144060
154060
164258
174258
184258
194159
204258
214258
224258
234357
244159
254159
264060
274060
284060
294060
304060
314060

Chance of precipitation in December

Any precipitationSnow

Wildwood gets around 2.5 in of rain and snow over 8.1 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 27% and peaks near 28% on the wettest days, and about 2 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1286
2286
3286
4286
5287
6287
7287
8287
9287
10287
11287
12287
13287
14287
15287
16286
17286
18276
19277
20277
21267
22257
23257
24247
25247
26247
27247
28237
29237
30237
31248

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 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1973
2973
3973
4973
5982
6982
7982
8982
9982
10991
11991
12991
13991
14991
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
25991
26991
27991
28991
29991
30991
31991

Wind in December

Winds average 7 mph in December.

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 30 min at the start of December to 9 h 18 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 7:07 AM to 7:26 AM, and sunset from 4:37 PM to 4:46 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.57:074:37
29.57:084:37
39.57:094:37
49.57:104:37
59.47:114:37
69.47:124:37
79.47:134:37
89.47:134:37
99.47:144:37
109.47:154:37
119.47:164:37
129.37:174:37
139.37:174:38
149.37:184:38
159.37:194:38
169.37:194:38
179.37:204:39
189.37:204:39
199.37:214:39
209.37:224:40
219.37:224:40
229.37:234:41
239.37:234:41
249.37:234:42
259.37:244:42
269.37:244:43
279.37:254:43
289.37:254:44
299.37:254:45
309.37:254:45
319.37:264:46

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.94 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.94 kWh/m² to a high of 6.42 kWh/m² in June across the year — December's 1.94 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.1Moderate
22.0Moderate
32.0Moderate
42.0Moderate
52.0Moderate
62.0Dim
72.0Dim
82.0Dim
91.9Dim
101.9Dim
111.9Dim
121.9Dim
131.9Dim
141.9Dim
151.9Dim
161.9Dim
171.9Dim
181.9Dim
191.9Dim
201.9Dim
211.9Dim
221.9Dim
231.9Dim
241.9Dim
251.9Dim
261.9Dim
271.9Dim
281.9Dim
292.0Dim
302.0Dim
312.0Dim
Planning a trip in December

Is December a good time to visit Wildwood?

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

0.8
Sightseeing
11th-best month of the year
0.0
Beach & pool
10th-best month of the year

December is a weaker month for outdoor sightseeing in Wildwood.

What to pack for Wildwood in December

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

In December, Wildwood sees daytime highs around 44°F and nights near 29°F. Pack a warm layer and a heavy coat. Worth having: rain gear. About 8 days see rain.

a warm layera heavy coatrain gear

UV index in Wildwood 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 Wildwood peaks around June 22 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 22UV 9Dec 23UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar5High
Apr7High
May8Very high
Jun10Very high
Jul9Very high
Aug8Very high
Sep7High
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Wildwood 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 Wildwood is worst in July — around 17 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (November, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodGoodModerateGoodJul 1517 µg/m³Nov 127 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb10Good
Mar13Moderate
Apr10Good
May13Moderate
Jun15Moderate
Jul17Moderate
Aug14Moderate
Sep11Good
Oct7Good
Nov7Good
Dec8Good
Location & terrain

Where is Wildwood?

Wildwood sits at 38.6°N, 90.7°W, 755 ft above sea level, in United States. The nearest listed city is Ballwin, 6.2 mi away.

Topography around Wildwood

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

Within 2 miles, the terrain around Wildwood has only modest variations in elevation — a maximum elevation change of 390 ft around an average of 751 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 568 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,234 ft.

The land around Wildwood is covered by trees (77%) within 2 miles, trees (69%) within 10 miles, and trees (58%) and cropland (24%) within 50 miles.

2 miles
390 ft
10 miles
568 ft
50 miles
1,234 ft
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Ballwin 6.2 mi · Chesterfield 7.5 mi · Manchester 8.1 mi · Kirkwood 14 mi · Creve Coeur 14 mi · Saint Peters 15 mi · Maryland Heights 16 mi · O'Fallon 16 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 Wildwood (38.5828°, -90.6629°, elevation 755 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).