Oshkosh weather in May

In May, Oshkosh sees average daytime highs of 64°F and overnight lows near 50°F, with 3.4 in of rain across 10.9 wet days and about 14.5 hours of daylight. It is the 5th-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 59°F in the first days to 69°F by the end. The sky is clear or mostly clear about 25% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 54 min at the start of May to 15 hours by month's end. Set against the rest of the year, May is Oshkosh's 6th-clearest and 7th-windiest month. For the whole year in context, see Oshkosh's year-round climate.

Daytime high
64°
5th warmest
Overnight low
50°
8th coldest
Rainfall
3.4 in
10.9 wet days
Daylight
14 h 30 min
4:34 AM – 7:07 PM
Cloud cover
63%
6th clearest
Wind
10 mph
7th windiest
Solar energy
5.67 kWh/m²
Travel score
5.5
out of 10

Oshkosh is city in and county seat of Winnebago County, Wisconsin, United States.

Density
924/km²
people per km²
Founded
1818

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 59°F in the first days to 69°F by the end.

A typical May day in Oshkosh reaches about 64°F in the afternoon and slips back to 50°F overnight — a 14°F spread between the day's warmth and the night's chill. On most days the high lands between 53°F and 75°F. Set against its neighbours, May runs about 13°F warmer than April and about 11°F cooler than June.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
15844
25844
35945
45945
56046
66046
76047
86147
96147
106248
116248
126248
136349
146349
156449
166450
176450
186551
196551
206651
216652
226652
236753
246753
256854
266854
276854
286955
296955
307056
317056

How May really feels in Oshkosh

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

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Oshkosh weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan25° / 14°1.57.86.99.10.0
Feb28° / 16°1.36.65.510.20.0
Mar38° / 25°2.38.74.711.60.1
Apr51° / 37°3.310.92.413.22.4
May64° / 50°3.410.9014.55.5
Jun74° / 61°3.710.6015.26.7
Jul79° / 65°3.210.10156.8
Aug77° / 63°3.410.1013.87.0
Sep69° / 56°2.99.3012.36.6
Oct56° / 44°2.99.90.310.83.8
Nov42° / 32°2.18.32.49.40.6
Dec31° / 20°1.77.15.48.80.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 17% of May, with mostly cloudy or overcast conditions the remaining 57%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14159
24060
33961
43961
53961
63961
73961
83862
94060
104060
114159
124159
134159
144159
154258
164258
174357
184456
194456
204555
214555
224654
234753
244753
254753
264654
274654
284654
294753
304753
314753

Chance of precipitation in May

Any precipitation

Oshkosh gets around 3.4 in of rain over 10.9 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 35% and peaks near 37% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
236
336
436
537
637
737
837
937
1036
1136
1236
1336
1436
1536
1635
1735
1835
1935
2034
2134
2234
2334
2434
2534
2634
2734
2834
2934
3034
3134

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 82% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
196310
296310
395410
495410
594510
693520
793520
892620
991630
1090730
1190730
1288840
1388840
1486941
15841051
16841051
17831151
18811162
19811162
20781273
21781273
22751384
23741394
24721495
257114105
267015105
276915115
286616126
296616126
306417136
316118147

Wind in May

Winds average 10 mph in May.

Across May, daily wind ranges from about 9 mph on the calmest days to 10 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
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
239light breeze
249light breeze
259light breeze
269light breeze
279light breeze
289light breeze
299light breeze
309light breeze
319light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 54 min at the start of May to 15 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over May. Sunrise moves from 4:53 AM to 4:21 AM, and sunset from 6:49 PM to 7:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.94:536:49
214.04:526:50
314.04:516:52
414.14:496:53
514.14:486:54
614.14:466:55
714.24:456:56
814.24:446:58
914.34:426:59
1014.34:417:00
1114.44:407:01
1214.44:397:02
1314.44:377:04
1414.54:367:05
1514.54:357:06
1614.54:347:07
1714.64:337:08
1814.64:327:09
1914.74:317:10
2014.74:307:11
2114.74:297:12
2214.84:287:13
2314.84:277:14
2414.84:267:15
2514.94:257:16
2614.94:257:17
2714.94:247:18
2814.94:237:19
2915.04:227:20
3015.04:227:21
3115.04:217:22

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.67 kWh/m².

For context, solar energy here swings from a low near 1.55 kWh/m² to a high of 6.14 kWh/m² in June across the year — May's 5.67 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.3Bright
65.4Bright
75.4Bright
85.4Bright
95.4Bright
105.5Bright
115.5Bright
125.5Bright
135.6Bright
145.6Bright
155.6Bright
165.7Bright
175.7Bright
185.7Bright
195.8Bright
205.8Bright
215.8Bright
225.9Bright
235.9Bright
245.9Bright
255.9Bright
265.9Bright
275.9Bright
286.0Bright
296.0Bright
306.0Bright
316.0Bright
Planning a trip in May

Is May a good time to visit Oshkosh?

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

5.5
Sightseeing
5th-best month of the year
1.9
Beach & pool
5th-best month of the year

May is a reasonable time to visit Oshkosh for sightseeing.

What to pack for Oshkosh in May

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

In May, Oshkosh sees daytime highs around 64°F and nights near 50°F. Worth packing: rain gear and sun protection. About 11 days see rain.

rain gearsun protection

UV index in Oshkosh in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Oshkosh peaks around June 18 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 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 20UV 1
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar4Moderate
Apr5High
May8Very high
Jun9Very high
Jul8Very high
Aug7Very high
Sep5High
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Oshkosh?

Oshkosh sits at 44.0°N, 88.5°W, 768 ft above sea level, in United States. The nearest listed city is Neenah, 12 mi away.

Topography around Oshkosh

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

Within 2 miles, the terrain around Oshkosh has only modest variations in elevation — a maximum elevation change of 148 ft around an average of 758 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 318 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 768 ft.

The land around Oshkosh is covered by artificial surfaces (44%), trees (21%) and water (21%) within 2 miles, water (40%) and cropland (30%) within 10 miles, and cropland (45%) and trees (30%) within 50 miles.

2 miles
148 ft
10 miles
318 ft
50 miles
768 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Neenah 12 mi · Menasha 13 mi · Appleton 17 mi · Fond du Lac 18 mi · Kaukauna 22 mi · De Pere 38 mi · Ashwaubenon 39 mi · Beaver Dam 42 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 Oshkosh (44.0247°, -88.5426°, elevation 768 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).