Danville weather in May

In May, Danville sees average daytime highs of 73°F and overnight lows near 54°F, with 4.7 in of rain across 13.2 wet days and about 14.2 hours of daylight. It is the 5th-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 69°F in the first days to 77°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 42 min at the start of May to 14 h 36 min by month's end. Set against the rest of the year, May is Danville's 8th-clearest and 8th-windiest month. For the whole year in context, see Danville's year-round climate.

Daytime high
73°
5th warmest
Overnight low
54°
8th coldest
Rainfall
4.7 in
13.2 wet days
Daylight
14 h 12 min
4:40 AM – 6:53 PM
Cloud cover
65%
8th clearest
Wind
9 mph
8th windiest
Solar energy
5.75 kWh/m²
Travel score
6.2
out of 10

Danville is city in and the county seat of Vermilion County, Illinois, United States.

Density
684/km²
people per km²
Founded
1827

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 69°F in the first days to 77°F by the end.

A typical May day in Danville reaches about 73°F in the afternoon and slips back to 54°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 60°F and 84°F. Set against its neighbours, May runs about 10°F warmer than April and about 8°F cooler than June.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
16849
26950
36950
46950
57051
67051
77051
87152
97152
107153
117253
127253
137253
147354
157354
167354
177355
187455
197455
207456
217456
227556
237557
247557
257657
267658
277658
287758
297759
307759
317859

How May really feels in Danville

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.

Danville 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
Jan36° / 21°2.98.94.39.50.0
Feb40° / 24°2.47.53.510.40.2
Mar51° / 33°3.510.61.811.72.5
Apr64° / 44°4.611.90.3135.2
May73° / 54°4.713.2014.26.2
Jun81° / 64°4.412.1014.85.9
Jul84° / 67°3.710.8014.65.6
Aug83° / 65°3.28.8013.66.2
Sep78° / 57°2.97.5012.37.3
Oct65° / 46°3.38.40.110.96.1
Nov51° / 35°3.38.40.79.82.7
Dec40° / 26°2.69.13.49.20.1

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 17% of May, with mostly cloudy or overcast conditions the remaining 59%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13961
23961
33961
44060
54060
64060
74060
84060
93961
104060
114060
124060
134060
144258
154258
164258
174159
184159
194159
204060
214159
224159
234060
244159
254060
264159
274159
284159
294357
304357
314357

Chance of precipitation in May

Any precipitation

Danville gets around 4.7 in of rain over 13.2 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 42% and peaks near 44% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
144
244
344
444
543
643
743
843
942
1042
1142
1241
1341
1441
1541
1641
1741
1841
1941
2042
2142
2242
2342
2442
2543
2643
2743
2843
2943
3042
3142

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 59% of days. Sticky, muggy-or-worse air turns up on roughly 9% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
18113510
27914610
37615720
47515820
57316830
67216930
769171040
869171040
967171150
1066171250
1164181260
1263181360
1362181370
1461181470
1560181480
1659191480
1757191590
18551916100
19561816100
20541817110
21531818110
22521818120
23501819131
24491819131
25481820141
26471820141
27461821151
28451821151
29441821161
30431822171
31411822172

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 42 min at the start of May to 14 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over May. Sunrise moves from 4:57 AM to 4:30 AM, and sunset from 6:38 PM to 7:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.74:576:38
213.74:566:39
313.84:556:40
413.84:546:41
513.84:526:42
613.94:516:43
713.94:506:44
813.94:496:45
914.04:486:46
1014.04:476:47
1114.04:456:48
1214.14:446:49
1314.14:436:50
1414.14:426:51
1514.24:416:52
1614.24:406:53
1714.24:396:54
1814.34:396:55
1914.34:386:56
2014.34:376:57
2114.44:366:58
2214.44:356:59
2314.44:347:00
2414.44:347:01
2514.54:337:01
2614.54:327:02
2714.54:327:03
2814.54:317:04
2914.64:317:05
3014.64:307:06
3114.64:307:06

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.75 kWh/m².

For context, solar energy here swings from a low near 1.75 kWh/m² to a high of 6.38 kWh/m² in June across the year — May's 5.75 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.4Bright
35.4Bright
45.4Bright
55.4Bright
65.5Bright
75.5Bright
85.5Bright
95.6Bright
105.6Bright
115.6Bright
125.7Bright
135.7Bright
145.7Bright
155.7Bright
165.8Bright
175.8Bright
185.8Bright
195.8Bright
205.9Bright
215.9Bright
225.9Bright
235.9Bright
246.0Bright
256.0Bright
266.0Intense
276.0Intense
286.0Intense
296.1Intense
306.1Intense
316.1Intense
Planning a trip in May

Is May a good time to visit Danville?

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

6.2
Sightseeing
2nd-best month of the year
4.7
Beach & pool
5th-best month of the year

May is a reasonable time to visit Danville for sightseeing.

What to pack for Danville in May

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

In May, Danville sees daytime highs around 73°F and nights near 54°F. Worth packing: light clothes, rain gear and sun protection. About 13 days see rain.

light clothesrain gearsun protection

UV index in Danville 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 Danville peaks around July 11 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 11UV 9Dec 23UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Danville 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 Danville is worst in July — around 16 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (October, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodJul 1516 µg/m³Oct 218 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar12Moderate
Apr12Good
May14Moderate
Jun15Moderate
Jul16Moderate
Aug14Moderate
Sep11Good
Oct8Good
Nov8Good
Dec9Good
Location & terrain

Where is Danville?

Danville sits at 40.1°N, 87.6°W, 600 ft above sea level, in United States. The nearest listed city is Urbana, 30 mi away.

Topography around Danville

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

Within 2 miles, the terrain around Danville has only modest variations in elevation — a maximum elevation change of 197 ft around an average of 617 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 292 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 545 ft.

The land around Danville is covered by trees (54%), artificial surfaces (22%) and grassland (20%) within 2 miles, cropland (59%) and trees (27%) within 10 miles, and cropland (78%) within 50 miles.

2 miles
197 ft
10 miles
292 ft
50 miles
545 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Urbana 30 mi · Champaign 32 mi · Crawfordsville 40 mi · West Lafayette 43 mi · Lafayette 45 mi · Terre Haute 47 mi · Charleston 52 mi · Mattoon 59 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 Danville (40.1245°, -87.63°, elevation 600 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).