Fond du Lac weather in April

In April, Fond du Lac sees average daytime highs of 53°F and overnight lows near 37°F, with 3.6 in of precipitation across 11.6 wet days and about 13.2 hours of daylight. It is the 7th-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 48°F in the first days to 58°F by the end. The sky is clear or mostly clear about 22% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 30 min at the start of April to 13 h 54 min by month's end. Set against the rest of the year, April is Fond du Lac's 9th-clearest and 1st-windiest month. For the whole year in context, see Fond du Lac's year-round climate.

Daytime high
53°
7th warmest
Overnight low
37°
6th coldest
Precipitation
3.6 in
11.6 wet days
Daylight
13 h 12 min
5:18 AM – 6:30 PM
Cloud cover
68%
9th clearest
Wind
10 mph
1st windiest
Solar energy
4.9 kWh/m²
Travel score
3.0
out of 10

Fond du Lac is city in and county seat of Fond du Lac County, Wisconsin, United States.

Density
824/km²
people per km²
Founded
1843

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 48°F in the first days to 58°F by the end.

A typical April day in Fond du Lac reaches about 53°F in the afternoon and slips back to 37°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 40°F and 67°F. Set against its neighbours, April runs about 13°F warmer than March and about 12°F cooler than May.

20°40°60°80°151015202530
Avg high (°F)Avg low (°F)
14731
24832
34832
44932
54933
64933
75033
85034
95134
105135
115235
125235
135336
145336
155337
165437
175437
185538
195538
205638
215639
225639
235740
245740
255740
265841
275841
285842
295942
305942

How April really feels in Fond du Lac

Once humidity and wind are folded in, April averages 0 days that feel above 90°F and 20 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
20
wind chill below the day's low

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

Fond du Lac weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan26° / 13°1.5879.10.0
Feb29° / 15°1.56.65.710.20.0
Mar40° / 25°2.394.611.60.4
Apr53° / 37°3.611.62.313.23.0
May65° / 48°3.611.30.114.55.7
Jun75° / 59°3.911.1015.26.6
Jul79° / 63°3.210.1014.96.7
Aug77° / 61°3.510.4013.86.9
Sep70° / 53°2.99.2012.36.7
Oct57° / 42°2.89.60.310.84.1
Nov43° / 30°2.08.12.49.50.7
Dec31° / 19°1.875.88.80.0

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% 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 65%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13367
23268
33169
43268
53268
63268
73268
83268
93268
103268
113268
123367
133466
143466
153565
163565
173664
183664
193763
203763
213763
223763
233763
243862
253862
263862
273862
283862
293862
303862

Chance of precipitation in April

Any precipitationSnow

Fond du Lac gets around 3.6 in of rain and snow over 11.6 wet days in April. 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 (%)
13510
23611
33711
43711
53811
63812
73812
83812
93812
103811
113811
123811
133810
143810
15389
16389
17388
18397
19397
20396
21395
22395
23394
24393
25393
26393
27392
28392
29392
30392

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 98% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
19910
210000
310000
49910
59910
69910
79910
89910
99910
109910
119910
129820
139820
149820
159820
169820
179820
189820
199820
209820
219820
229730
239730
249730
259730
269730
279730
289730
299631
309541

Wind in April

Winds average 10 mph in April, the windiest month of the year.

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 30 min at the start of April to 13 h 54 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 5:45 AM to 4:55 AM, and sunset from 6:12 PM to 6:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:456:12
212.55:436:13
312.65:416:14
412.65:396:16
512.75:386:17
612.75:366:18
712.85:346:19
812.85:326:20
912.95:306:22
1012.95:286:23
1113.05:276:24
1213.05:256:25
1313.15:236:27
1413.15:216:28
1513.25:206:29
1613.25:186:30
1713.35:166:31
1813.35:146:33
1913.45:136:34
2013.45:116:35
2113.45:096:36
2213.55:086:37
2313.55:066:39
2413.65:046:40
2513.65:036:41
2613.75:016:42
2713.75:006:44
2813.84:586:45
2913.84:576:46
3013.94:556:47

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.9 kWh/m².

For context, solar energy here swings from a low near 1.53 kWh/m² to a high of 6.27 kWh/m² in June across the year — April's 4.9 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.6Bright
74.6Bright
84.6Bright
94.7Bright
104.7Bright
114.7Bright
124.8Bright
134.8Bright
144.8Bright
154.9Bright
164.9Bright
175.0Bright
185.0Bright
195.0Bright
205.1Bright
215.1Bright
225.1Bright
235.2Bright
245.2Bright
255.2Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
Planning a trip in April

Is April a good time to visit Fond du Lac?

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

3.0
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 Fond du Lac.

What to pack for Fond du Lac in April

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

In April, Fond du Lac sees daytime highs around 53°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 Fond du Lac 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 40 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 31 to Aug 28 — about 1 month when the water holds above 68°F.

30°40°50°60°70°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°F)Comfort
Jan38Bracing
Feb36Bracing
Mar36Bracing
Apr38Bracing
May42Bracing
Jun54Bracing
Jul66Cool
Aug70Refreshing
Sep65Cool
Oct55Bracing
Nov46Bracing
Dec41Bracing

UV index in Fond du Lac 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 Fond du Lac peaks around June 18 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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 18UV 9Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr6High
May8Very high
Jun9Very high
Jul8Very high
Aug7Very high
Sep6High
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Fond du Lac 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 Fond du Lac is worst in July — around 15 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (November, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodJul 1415 µg/m³Nov 118 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Moderate
Mar13Moderate
Apr12Good
May13Moderate
Jun14Moderate
Jul15Moderate
Aug14Moderate
Sep11Good
Oct8Good
Nov8Good
Dec9Good
Location & terrain

Where is Fond du Lac?

Fond du Lac sits at 43.8°N, 88.4°W, 761 ft above sea level, in United States. The nearest listed city is Oshkosh, 18 mi away.

Topography around Fond du Lac

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

Within 2 miles, the terrain around Fond du Lac has only modest variations in elevation — a maximum elevation change of 118 ft around an average of 774 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 551 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 764 ft.

The land around Fond du Lac is covered by artificial surfaces (42%), trees (28%) and grassland (22%) within 2 miles, cropland (48%) within 10 miles, and cropland (42%) and trees (25%) within 50 miles.

2 miles
118 ft
10 miles
551 ft
50 miles
764 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Oshkosh 18 mi · West Bend 27 mi · Neenah 29 mi · Menasha 30 mi · Beaver Dam 30 mi · Appleton 34 mi · Kaukauna 35 mi · Sheboygan 36 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 Fond du Lac (43.775°, -88.4388°, elevation 761 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).