Niles weather in May

In May, Niles sees average daytime highs of 69°F and overnight lows near 50°F, with 4.1 in of rain across 13.6 wet days and about 14.3 hours of daylight. It is the 5th-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 65°F in the first days to 73°F by the end. The sky is clear or mostly clear about 23% 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 42 min by month's end. Set against the rest of the year, May is Niles's 6th-clearest and 8th-windiest month. For the whole year in context, see Niles's year-round climate.

Daytime high
69°
5th warmest
Overnight low
50°
8th coldest
Rainfall
4.1 in
13.6 wet days
Daylight
14 h 18 min
5:10 AM – 7:28 PM
Cloud cover
65%
6th clearest
Wind
7 mph
8th windiest
Solar energy
5.71 kWh/m²
Travel score
5.8
out of 10

Niles is city in Trumbull County, Ohio, United States.

Density
834/km²
people per km²
Founded
1806

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 73°F by the end.

A typical May day in Niles reaches about 69°F in the afternoon and slips back to 50°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 56°F and 82°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)
16546
26546
36546
46647
56647
66647
76747
86748
96748
106748
116849
126849
136849
146849
156950
166950
176950
186951
197051
207051
217052
227152
237152
247153
257253
267253
277254
287354
297355
307355
317455

How May really feels in Niles

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.

Niles weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan35° / 21°3.312.49.19.40.0
Feb37° / 22°2.610.36.910.30.0
Mar47° / 30°3.712.24.911.71.3
Apr59° / 40°4.313.91.613.14.2
May69° / 50°4.113.6014.35.8
Jun78° / 59°4.513.3014.96.2
Jul81° / 64°4.013.2014.76.0
Aug80° / 62°3.611013.66.5
Sep73° / 55°3.710.4012.36.7
Oct61° / 44°3.411.60.210.94.9
Nov49° / 35°3.311.22.79.71.9
Dec39° / 27°3.311.76.49.10.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 16% of May, with mostly cloudy or overcast conditions the remaining 61%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13763
23763
33862
43862
53763
63862
73862
83862
93961
103961
113862
123862
133961
143961
153862
163862
173862
183862
193862
203862
213961
223961
233961
244060
254060
264159
274159
284258
294258
304258
314357

Chance of precipitation in May

Any precipitation

Niles gets around 4.1 in of rain over 13.6 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 44% and peaks near 45% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
145
245
345
445
545
645
745
845
945
1045
1145
1245
1345
1445
1545
1645
1744
1844
1944
2043
2143
2243
2343
2443
2543
2643
2743
2843
2943
3043
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 72% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
188930
2861040
3861040
4841150
5831160
6831160
7821170
8821170
9801181
10801181
11791191
12791191
137712101
147612102
157612102
167413112
177313113
187214113
197114123
206815134
216815134
226516145
236316156
246117166
256117166
265818177
275718187
285519197
295519197
305220208
315220208

Wind in May

Winds average 7 mph in May.

Across May, daily wind ranges from about 6 mph on the calmest days to 7 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 42 min at the start of May to 14 h 42 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 5:28 AM to 4:59 AM, and sunset from 7:13 PM to 7:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.75:287:13
213.85:277:14
313.85:257:15
413.95:247:16
513.95:237:17
613.95:217:18
714.05:207:19
814.05:197:20
914.15:187:21
1014.15:177:22
1114.15:167:23
1214.25:147:24
1314.25:137:25
1414.25:127:26
1514.35:117:27
1614.35:107:28
1714.35:097:29
1814.45:087:30
1914.45:077:31
2014.45:077:32
2114.55:067:33
2214.55:057:34
2314.55:047:35
2414.55:037:36
2514.65:037:37
2614.65:027:38
2714.65:017:39
2814.65:017:39
2914.75:007:40
3014.74:597:41
3114.74:597:42

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.71 kWh/m².

For context, solar energy here swings from a low near 1.39 kWh/m² to a high of 6.08 kWh/m² in June across the year — May's 5.71 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
95.5Bright
105.5Bright
115.5Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.7Bright
175.7Bright
185.7Bright
195.7Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.9Bright
265.9Bright
275.9Bright
285.9Bright
295.9Bright
305.9Bright
315.9Bright
Planning a trip in May

Is May a good time to visit Niles?

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

5.8
Sightseeing
5th-best month of the year
3.4
Beach & pool
5th-best month of the year

May is a reasonable time to visit Niles for sightseeing.

What to pack for Niles in May

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

In May, Niles sees daytime highs around 69°F and nights near 50°F. Worth packing: rain gear and sun protection. About 14 days see rain.

rain gearsun protection

UV index in Niles 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 Niles peaks around June 22 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 22UV 9Dec 22UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug7Very high
Sep6High
Oct3Moderate
Nov2Moderate
Dec2Low

Air quality in Niles 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 Niles is worst in July — around 16 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (November, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1116 µg/m³Nov 137 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb11Good
Mar11Good
Apr12Good
May14Moderate
Jun16Moderate
Jul16Moderate
Aug14Moderate
Sep11Good
Oct8Good
Nov7Good
Dec8Good
Location & terrain

Where is Niles?

Niles sits at 41.2°N, 80.8°W, 879 ft above sea level, in United States. The nearest listed city is Warren, 5.0 mi away.

Topography around Niles

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

Within 2 miles, the terrain around Niles has only modest variations in elevation — a maximum elevation change of 269 ft around an average of 919 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 463 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,175 ft.

The land around Niles is covered by trees (65%) within 2 miles, trees (61%) and grassland (22%) within 10 miles, and trees (66%) within 50 miles.

2 miles
269 ft
10 miles
463 ft
50 miles
1,175 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Warren 5.0 mi · Austintown 5.6 mi · Youngstown 8.1 mi · Boardman 12 mi · Hermitage 17 mi · New Castle 25 mi · Alliance 25 mi · Streetsboro 30 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 Niles (41.1828°, -80.7654°, elevation 879 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).