Yorkville weather in May

In May, Yorkville sees average daytime highs of 70°F and overnight lows near 51°F, with 4.7 in of rain across 12.7 wet days and about 14.3 hours of daylight. It is the 5th-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 65°F in the first days to 74°F by the end. The sky is clear or mostly clear about 24% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 48 min at the start of May to 14 h 48 min by month's end. Set against the rest of the year, May is Yorkville's 7th-clearest and 8th-windiest month. For the whole year in context, see Yorkville's year-round climate.

Daytime high
70°
5th warmest
Overnight low
51°
8th coldest
Rainfall
4.7 in
12.7 wet days
Daylight
14 h 18 min
4:40 AM – 7:00 PM
Cloud cover
65%
7th clearest
Wind
9 mph
8th windiest
Solar energy
5.69 kWh/m²
Travel score
6.0
out of 10

Yorkville is city in and county seat of Kendall County, Illinois, United States.

Density
348/km²
people per km²
Founded
1833

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 65°F in the first days to 74°F by the end.

A typical May day in Yorkville reaches about 70°F in the afternoon and slips back to 51°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 57°F and 82°F. Set against its neighbours, May runs about 10°F warmer than April and about 9°F cooler than June.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
16446
26546
36546
46647
56647
66647
76748
86748
96749
106849
116849
126949
136950
146950
156950
167051
177051
187051
197152
207152
217152
227253
237253
247253
257354
267354
277355
287455
297455
307456
317556

How May really feels in Yorkville

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.

Yorkville weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan30° / 17°2.17.95.79.30.0
Feb35° / 20°1.974.610.30.0
Mar47° / 30°2.69.62.811.71.5
Apr59° / 40°4.512.30.913.14.3
May70° / 51°4.712.7014.36.0
Jun79° / 61°4.211.80156.3
Jul82° / 65°3.710.9014.76.1
Aug80° / 63°3.59.9013.76.6
Sep74° / 55°3.18.5012.37.1
Oct62° / 43°3.29.20.110.95.3
Nov47° / 32°2.58.11.39.71.7
Dec36° / 22°2.27.94.390.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 61%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13763
23664
33664
43664
53664
63763
73862
83862
93862
103961
113961
123961
133961
143961
154060
164060
174060
184060
194060
204159
214159
224060
234159
244159
254159
264060
274159
284159
294159
304258
314258

Chance of precipitation in May

Any precipitation

Yorkville gets around 4.7 in of rain over 12.7 wet days in May, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 41% and peaks near 43% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
142
242
342
443
543
643
742
842
942
1042
1142
1242
1342
1442
1541
1641
1741
1841
1941
2041
2141
2241
2340
2440
2540
2640
2740
2840
2940
3040
3140

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 73% of days. Sticky, muggy-or-worse air turns up on roughly 6% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1889210
2889210
38710210
48610310
58411320
68411320
78212420
88112430
98012530
107913530
117813540
127713640
137713640
147613740
157414750
167314850
177314850
187214860
197114960
2069141070
2168151070
2266151180
2366151180
2464151290
2562161390
2662161390
27591714100
28591714100
29571815100
30551815111
31541915111

Wind in May

Winds average 9 mph in May.

Across May, daily wind ranges from about 8 mph on the calmest days to 9 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
19light breeze
29light breeze
39light breeze
49light breeze
59light breeze
69light breeze
79light breeze
89light breeze
99light breeze
109light breeze
119light breeze
129light breeze
139light breeze
149light breeze
159light breeze
169light breeze
178light breeze
188light breeze
198light breeze
208light breeze
218light breeze
228light breeze
238light breeze
248light breeze
258light breeze
268light breeze
278light breeze
288light breeze
298light breeze
308light breeze
318light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 48 min at the start of May to 14 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over May. Sunrise moves from 4:58 AM to 4:28 AM, and sunset from 6:44 PM to 7:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.84:586:44
213.84:566:45
313.94:556:46
413.94:546:47
513.94:526:49
614.04:516:50
714.04:506:51
814.14:496:52
914.14:486:53
1014.14:466:54
1114.24:456:55
1214.24:446:56
1314.24:436:57
1414.34:426:58
1514.34:416:59
1614.34:407:00
1714.44:397:01
1814.44:387:02
1914.44:377:03
2014.54:367:04
2114.54:357:05
2214.54:347:06
2314.64:347:07
2414.64:337:08
2514.64:327:09
2614.64:317:10
2714.74:317:11
2814.74:307:12
2914.74:297:12
3014.74:297:13
3114.84:287:14

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.69 kWh/m².

For context, solar energy here swings from a low near 1.68 kWh/m² to a high of 6.28 kWh/m² in June across the year — May's 5.69 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.4Bright
55.4Bright
65.4Bright
75.4Bright
85.5Bright
95.5Bright
105.5Bright
115.6Bright
125.6Bright
135.6Bright
145.7Bright
155.7Bright
165.7Bright
175.8Bright
185.8Bright
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 Yorkville?

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

6.0
Sightseeing
5th-best month of the year
3.7
Beach & pool
5th-best month of the year

May is a reasonable time to visit Yorkville for sightseeing.

What to pack for Yorkville in May

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

In May, Yorkville sees daytime highs around 70°F and nights near 51°F. Worth packing: rain gear and sun protection. About 13 days see rain.

rain gearsun protection

UV index in Yorkville in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Yorkville peaks around June 20 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJun 20UV 9Dec 19UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May7Very high
Jun9Very high
Jul8Very high
Aug8Very high
Sep6High
Oct3Moderate
Nov2Moderate
Dec2Low

Air quality in Yorkville in May

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Yorkville is worst in July — around 17 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (October, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodJul 1817 µg/m³Oct 229 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb15Moderate
Mar16Moderate
Apr14Moderate
May15Moderate
Jun16Moderate
Jul17Moderate
Aug16Moderate
Sep13Moderate
Oct9Good
Nov10Good
Dec11Good
Location & terrain

Where is Yorkville?

Yorkville sits at 41.6°N, 88.4°W, 607 ft above sea level, in United States. The nearest listed city is Oswego, 5.6 mi away.

Topography around Yorkville

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

Within 2 miles, the terrain around Yorkville has only modest variations in elevation — a maximum elevation change of 276 ft around an average of 653 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 751 ft.

The land around Yorkville is covered by trees (37%), cropland (24%) and grassland (21%) within 2 miles, cropland (64%) within 10 miles, and cropland (58%) within 50 miles.

2 miles
276 ft
10 miles
318 ft
50 miles
751 ft
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Oswego 5.6 mi · Montgomery 8.1 mi · Aurora 11 mi · Plainfield 12 mi · North Aurora 13 mi · Shorewood 15 mi · Batavia 16 mi · Naperville 19 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 Yorkville (41.6411°, -88.4473°, elevation 607 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).