Oak Creek weather in April

In April, Oak Creek sees average daytime highs of 43°F and overnight lows near 37°F, with 4.3 in of precipitation across 11.5 wet days and about 13.1 hours of daylight. It is the 8th-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 40°F in the first days to 46°F by the end. The sky is clear or mostly clear about 26% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 24 min at the start of April to 13 h 48 min by month's end. Set against the rest of the year, April is Oak Creek's 8th-clearest and 6th-windiest month. For the whole year in context, see Oak Creek's year-round climate.

Daytime high
43°
8th warmest
Overnight low
37°
5th coldest
Precipitation
4.3 in
11.5 wet days
Daylight
13 h 12 min
5:17 AM – 6:27 PM
Cloud cover
65%
8th clearest
Wind
14 mph
6th windiest
Solar energy
5.08 kWh/m²
Travel score
0.5
out of 10

Oak Creek is city in Milwaukee County, Wisconsin, United States.

Density
478/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 40°F in the first days to 46°F by the end.

A typical April day in Oak Creek reaches about 43°F in the afternoon and slips back to 37°F overnight — a 6°F spread between the day's warmth and the night's chill. On most days the high lands between 36°F and 50°F. Set against its neighbours, April runs about 8°F warmer than March and about 10°F cooler than May.

20°30°40°50°60°151015202530
Avg high (°F)Avg low (°F)
13933
23933
34033
44033
54034
64034
74134
84135
94135
104135
114236
124236
134236
144237
154337
164337
174337
184438
194438
204438
214438
224439
234539
244539
254540
264640
274640
284641
294641
304741

How April really feels in Oak Creek

Once humidity and wind are folded in, April averages 0 days that feel above 90°F and 24 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
24
wind chill below the day's low

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

Oak Creek weather by month

How April compares with the rest of the year at a glance. April is the 8th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan30° / 21°2.49.77.89.20.0
Feb30° / 21°2.17.25.810.20.0
Mar35° / 27°2.69.43.911.60.0
Apr43° / 37°4.311.51.713.10.5
May53° / 47°3.410.6014.42.9
Jun66° / 60°3.19.9015.15.9
Jul74° / 69°2.89014.87.2
Aug75° / 69°3.510.3013.87.1
Sep69° / 63°3.39.5012.36.6
Oct57° / 51°3.610.40.110.84.1
Nov45° / 39°3.09.91.49.51.0
Dec36° / 29°2.69.25.48.90.0

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 12% of April, with mostly cloudy or overcast conditions the remaining 62%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13664
23664
33664
43664
53664
63664
73664
83664
93664
103664
113763
123763
133763
143862
153961
163961
173961
183961
193961
203961
214060
224060
234060
244060
254060
264060
274060
284060
294060
304060

Chance of precipitation in April

Any precipitationSnow

Oak Creek gets around 4.3 in of rain and snow over 11.5 wet days in April, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 38% and peaks near 39% on the wettest days, and about 2 days bring snow.

0%10%20%30%40%50%151015202530
Rain chance (%)Snow chance (%)
1367
2377
3388
4388
5398
6398
7398
8398
9398
10397
11397
12397
13397
14397
15386
16386
17385
18385
19384
20384
21374
22373
23373
24372
25372
26372
27372
28361
29361
30361

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
111000
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
30991

Wind in April

Winds average 14 mph in April.

Across April, daily wind ranges from about 13 mph on the calmest days to 14 mph at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (mph)Feels
113breezy
213breezy
313breezy
414breezy
514breezy
614breezy
714breezy
814breezy
914breezy
1014breezy
1114breezy
1214breezy
1314breezy
1414breezy
1514breezy
1614breezy
1714breezy
1814breezy
1914breezy
2014breezy
2113breezy
2213breezy
2313breezy
2413breezy
2513breezy
2613breezy
2713breezy
2813breezy
2913breezy
3013breezy

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 24 min at the start of April to 13 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 84 minutes over April. Sunrise moves from 5:43 AM to 4:54 AM, and sunset from 6:09 PM to 6:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:436:09
212.55:416:10
312.55:396:12
412.65:386:13
512.65:366:14
612.75:346:15
712.75:326:16
812.85:306:17
912.85:296:19
1012.95:276:20
1112.95:256:21
1213.05:236:22
1313.05:226:23
1413.15:206:24
1513.15:186:26
1613.25:176:27
1713.25:156:28
1813.35:136:29
1913.35:126:30
2013.45:106:31
2113.45:086:33
2213.55:076:34
2313.55:056:35
2413.55:046:36
2513.65:026:37
2613.65:006:38
2713.74:596:40
2813.74:576:41
2913.84:566:42
3013.84:546:43

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.08 kWh/m².

For context, solar energy here swings from a low near 1.39 kWh/m² to a high of 6.51 kWh/m² in June across the year — April's 5.08 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.9Bright
114.9Bright
125.0Bright
135.0Bright
145.0Bright
155.1Bright
165.1Bright
175.1Bright
185.2Bright
195.2Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.5Bright
295.5Bright
305.5Bright
Planning a trip in April

Is April a good time to visit Oak Creek?

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

0.5
Sightseeing
8th-best month of the year
0.0
Beach & pool
7th-best month of the year

April is a weaker month for outdoor sightseeing in Oak Creek.

What to pack for Oak Creek in April

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

In April, Oak Creek sees daytime highs around 43°F and nights near 37°F. Pack a warm layer. Worth having: a heavy coat, rain gear, sun protection and a windbreaker. About 12 days see rain.

a warm layera heavy coatrain gearsun protectiona windbreaker

Sea temperature near Oak Creek in April

The nearest coast averages about 38°F in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 70°F and coldest in March near 36°F.

It's comfortable for a long swim from Jul 24 to Sep 2 — about 1.3 months when the water holds above 68°F.

30°40°50°60°70°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°F)Comfort
Jan38Bracing
Feb36Bracing
Mar36Bracing
Apr38Bracing
May43Bracing
Jun55Bracing
Jul67Cool
Aug70Refreshing
Sep66Cool
Oct56Bracing
Nov47Bracing
Dec41Bracing

UV index in Oak Creek in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Oak Creek peaks around June 22 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 22UV 9Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug8Very high
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low

Air quality in Oak Creek in April

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where April falls, not just the annual average.

Air quality in Oak Creek is worst in July — around 17 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (October, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1017 µg/m³Oct 249 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb13Moderate
Mar15Moderate
Apr15Moderate
May16Moderate
Jun17Moderate
Jul17Moderate
Aug16Moderate
Sep13Moderate
Oct9Good
Nov9Good
Dec10Good
Location & terrain

Where is Oak Creek?

Oak Creek sits at 42.9°N, 87.9°W, 702 ft above sea level, in United States. The nearest listed city is South Milwaukee, 1.9 mi away.

Topography around Oak Creek

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

Within 2 miles, the terrain around Oak Creek has only modest variations in elevation — a maximum elevation change of 194 ft around an average of 659 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 400 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 810 ft.

The land around Oak Creek is covered by trees (28%), artificial surfaces (24%) and grassland (23%) within 2 miles, water (40%) within 10 miles, and water (49%) within 50 miles.

2 miles
194 ft
10 miles
400 ft
50 miles
810 ft
treesgrasslandcroplandartificial surfaceswater
April weather nearby: South Milwaukee 1.9 mi · Cudahy 5.0 mi · Caledonia 6.2 mi · Franklin 8.7 mi · Greenfield 9.3 mi · Milwaukee 11 mi · West Allis 12 mi · Racine 12 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 Oak Creek (42.8858°, -87.8631°, elevation 702 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).