Wildwood weather in January

In January, Wildwood sees average daytime highs of 40°F and overnight lows near 25°F, with 2.7 in of precipitation across 7.9 wet days and about 9.6 hours of daylight. It is the 12th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 40°F through the month. The sky is clear or mostly clear about 30% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 18 min at the start of January to 10 hours by month's end. Set against the rest of the year, January is Wildwood's 8th-clearest and 4th-windiest month. For the whole year in context, see Wildwood's year-round climate.

Daytime high
40°
12th warmest
Overnight low
25°
1st coldest
Precipitation
2.7 in
7.9 wet days
Daylight
9 h 36 min
7:24 AM – 4:59 PM
Cloud cover
62%
8th clearest
Wind
7 mph
4th windiest
Solar energy
2.25 kWh/m²
Travel score
0.0
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 January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 40°F through the month.

A typical January day in Wildwood reaches about 40°F in the afternoon and slips back to 25°F overnight — a 16°F spread between the day's warmth and the night's chill. On most days the high lands between 25°F and 57°F. Set against its neighbours, January runs about 4°F cooler than December and about 5°F cooler than February.

20°40°60°151015202531
Avg high (°F)Avg low (°F)
14126
24126
34126
44126
54026
64025
74025
84025
94025
104025
114025
124024
134024
144024
154024
164024
174024
184024
194024
204024
214024
224024
234024
244024
254124
264125
274125
284125
294125
304225
314225

How January really feels in Wildwood

Once humidity and wind are folded in, January 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 January is cold — wind chill drags the overnight "feels like" below the raw low.

Wildwood weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 10th-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 January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 13% of January, with mostly cloudy or overcast conditions the remaining 58%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14060
24060
34060
44060
54060
64060
74060
84258
94258
104159
114159
124258
134258
144258
154258
164258
174357
184456
194456
204456
214456
224357
234357
244357
254456
264456
274456
284357
294456
304357
314357

Chance of precipitation in January

Any precipitationSnow

Wildwood gets around 2.7 in of rain and snow over 7.9 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 25% and peaks near 27% on the wettest days, and about 3 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1248
2248
3258
4258
5269
6269
7269
8279
9279
10279
112710
122710
132710
142710
152710
162610
172610
182610
19259
202510
212510
222510
232410
242410
252410
262410
272310
282310
292310
302310
312310

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

Most of January feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, January 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 (%)
1991
2982
3982
4982
5982
6982
7982
8982
9991
10991
11991
12991
13991
14991
15991
16991
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000
311000

Wind in January

Winds average 7 mph in January.

Across January, 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 January

DaylightNight

Daylight runs from about 9 h 18 min at the start of January to 10 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over January. Sunrise moves from 7:25 AM to 7:16 AM, and sunset from 4:46 PM to 5:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.37:254:46
29.47:264:47
39.47:264:48
49.47:264:49
59.47:264:49
69.47:264:50
79.47:264:51
89.47:264:52
99.57:264:53
109.57:264:54
119.57:264:55
129.57:254:56
139.57:254:56
149.57:254:57
159.67:254:58
169.67:244:59
179.67:245:00
189.67:245:01
199.77:235:02
209.77:235:04
219.77:235:05
229.77:225:06
239.87:225:07
249.87:215:08
259.87:205:09
269.87:205:10
279.97:195:11
289.97:195:12
299.97:185:13
3010.07:175:14
3110.07:165:16

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.25 kWh/m².

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 — January's 2.25 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.0Dim
22.0Dim
32.0Moderate
42.0Moderate
52.0Moderate
62.0Moderate
72.0Moderate
82.1Moderate
92.1Moderate
102.1Moderate
112.1Moderate
122.1Moderate
132.2Moderate
142.2Moderate
152.2Moderate
162.2Moderate
172.3Moderate
182.3Moderate
192.3Moderate
202.4Moderate
212.4Moderate
222.4Moderate
232.4Moderate
242.5Moderate
252.5Moderate
262.5Moderate
272.5Moderate
282.6Moderate
292.6Moderate
302.6Moderate
312.7Moderate
Planning a trip in January

Is January a good time to visit Wildwood?

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

0.0
Sightseeing
12th-best month of the year
0.0
Beach & pool
10th-best month of the year

January is a weaker month for outdoor sightseeing in Wildwood.

What to pack for Wildwood in January

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

In January, Wildwood sees daytime highs around 40°F and nights near 25°F. Pack a warm layer and a heavy coat. About 8 days see rain.

a warm layera heavy coat

UV index in Wildwood in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January 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 January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January 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
January 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).