Germantown weather in April

In April, Germantown sees average daytime highs of 50°F and overnight lows near 37°F, with 4.0 in of precipitation across 11.6 wet days and about 13.2 hours of daylight. It is the 7th-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 46°F in the first days to 54°F by the end. The sky is clear or mostly clear about 23% 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 Germantown's 8th-clearest and 6th-windiest month. For the whole year in context, see Germantown's year-round climate.

Daytime high
50°
7th warmest
Overnight low
37°
6th coldest
Precipitation
4.0 in
11.6 wet days
Daylight
13 h 12 min
5:17 AM – 6:28 PM
Cloud cover
67%
8th clearest
Wind
10 mph
6th windiest
Solar energy
5.02 kWh/m²
Travel score
2.1
out of 10

Germantown is village in Washington County, Wisconsin, United States.

Density
224/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 46°F in the first days to 54°F by the end.

A typical April day in Germantown reaches about 50°F in the afternoon and slips back to 37°F overnight — a 13°F spread between the day's warmth and the night's chill. On most days the high lands between 39°F and 61°F. Set against its neighbours, April runs about 10°F warmer than March and about 10°F cooler than May.

20°30°40°50°60°70°151015202530
Avg high (°F)Avg low (°F)
14533
24633
34633
44634
54634
64734
74735
84735
94835
104836
114836
124936
134937
144937
155037
165038
175138
185138
195138
205239
215239
225239
235340
245340
255340
265341
275441
285441
295442
305542

How April really feels in Germantown

Once humidity and wind are folded in, April averages 0 days that feel above 90°F and 19 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
19
wind chill below the day's low

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

Germantown weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan29° / 17°2.08.96.89.20.0
Feb31° / 19°1.86.85.610.20.0
Mar40° / 27°2.49.2411.60.2
Apr50° / 37°4.011.61.813.22.1
May60° / 47°3.611.1014.54.7
Jun71° / 59°3.510.7015.16.5
Jul78° / 65°3.19.7014.96.9
Aug77° / 65°3.510.2013.86.9
Sep70° / 57°3.08.9012.36.7
Oct58° / 46°3.19.60.210.84.3
Nov44° / 34°2.48.81.89.51.0
Dec34° / 24°2.28.15.38.90.0

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 13% of April, with mostly cloudy or overcast conditions the remaining 63%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13268
23268
33367
43367
53367
63367
73367
83367
93367
103367
113565
123565
133565
143664
153763
163862
173862
183961
194060
204060
214060
224060
234060
244060
254060
264159
274060
284060
294060
304060

Chance of precipitation in April

Any precipitationSnow

Germantown gets around 4.0 in of rain and snow over 11.6 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 (%)
1368
2369
3379
4389
5389
6389
7399
8399
9399
10399
11399
12398
13398
14398
15397
16397
17396
18396
19395
20394
21394
22393
23393
24392
25392
26382
27381
28381
29381
30371

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
26991
27991
28991
29991
30991

Wind in April

Winds average 10 mph in April.

Across April, daily wind ranges from about 10 mph on the calmest days to 10 mph at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (mph)Feels
110light breeze
210light breeze
310light breeze
410light breeze
510light breeze
610light breeze
710light breeze
810light breeze
910light breeze
1010light breeze
1110light breeze
1210light breeze
1310light breeze
1410light breeze
1510light breeze
1610light breeze
1710light breeze
1810light breeze
1910light breeze
2010light breeze
2110light breeze
2210light breeze
2310light breeze
2410light breeze
2510light breeze
2610light breeze
2710light breeze
2810light breeze
2910light breeze
3010light breeze

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 5:44 AM to 4:55 AM, and sunset from 6:10 PM to 6:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:446:10
212.55:426:12
312.55:406:13
412.65:386:14
512.65:376:15
612.75:356:16
712.75:336:17
812.85:316:19
912.85:296:20
1012.95:286:21
1112.95:266:22
1213.05:246:23
1313.05:226:25
1413.15:216:26
1513.15:196:27
1613.25:176:28
1713.25:156:29
1813.35:146:31
1913.35:126:32
2013.45:106:33
2113.45:096:34
2213.55:076:35
2313.55:066:36
2413.65:046:38
2513.65:026:39
2613.75:016:40
2713.74:596:41
2813.74:586:42
2913.84:566:44
3013.84:556:45

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.02 kWh/m².

For context, solar energy here swings from a low near 1.47 kWh/m² to a high of 6.43 kWh/m² in June across the year — April's 5.02 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.5Bright
24.6Bright
34.6Bright
44.6Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.8Bright
104.8Bright
114.8Bright
124.9Bright
134.9Bright
145.0Bright
155.0Bright
165.0Bright
175.1Bright
185.1Bright
195.2Bright
205.2Bright
215.2Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.5Bright
Planning a trip in April

Is April a good time to visit Germantown?

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

2.1
Sightseeing
7th-best month of the year
0.0
Beach & pool
7th-best month of the year

April is a weaker month for outdoor sightseeing in Germantown.

What to pack for Germantown in April

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

In April, Germantown sees daytime highs around 50°F and nights near 37°F. Pack a warm layer. Worth having: rain gear and sun protection. About 12 days see rain.

a warm layerrain gearsun protection

Sea temperature near Germantown 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 at the nearest coast (about 14 mi away) is warmest in August at about 70°F and coldest in March near 36°F.

It's comfortable for a long swim from Jul 29 to Aug 30 — about 1.1 months when the water holds above 68°F.

30°40°50°60°70°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°F)Comfort
Jan38Bracing
Feb36Bracing
Mar36Bracing
Apr38Bracing
May42Bracing
Jun54Bracing
Jul67Cool
Aug70Refreshing
Sep66Cool
Oct56Bracing
Nov46Bracing
Dec41Bracing

UV index in Germantown 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 Germantown peaks around June 20 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 20UV 9Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr6High
May8Very high
Jun9Very high
Jul8Very high
Aug7Very high
Sep5High
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Germantown 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 Germantown is worst in June — around 16 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (November, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJun 2116 µg/m³Nov 138 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Good
Mar14Moderate
Apr13Moderate
May15Moderate
Jun16Moderate
Jul15Moderate
Aug14Moderate
Sep11Good
Oct8Good
Nov8Good
Dec9Good
Location & terrain

Where is Germantown?

Germantown sits at 43.2°N, 88.1°W, 866 ft above sea level, in United States. The nearest listed city is Menomonee Falls, 3.7 mi away.

Topography around Germantown

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

Within 2 miles, the terrain around Germantown has only modest variations in elevation — a maximum elevation change of 125 ft around an average of 879 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 587 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 846 ft.

The land around Germantown is covered by trees (40%) and grassland (29%) within 2 miles, trees (42%) and grassland (28%) within 10 miles, and water (33%), cropland (31%) and trees (20%) within 50 miles.

2 miles
125 ft
10 miles
587 ft
50 miles
846 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Menomonee Falls 3.7 mi · Mequon 4.3 mi · Brookfield 12 mi · Wauwatosa 14 mi · West Bend 14 mi · West Allis 16 mi · Waukesha 16 mi · Milwaukee 17 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 Germantown (43.2286°, -88.1104°, elevation 866 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).