Mentor weather in May

In May, Mentor sees average daytime highs of 63°F and overnight lows near 54°F, with 4.0 in of rain across 13.1 wet days and about 14.3 hours of daylight. It is the 5th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 57°F in the first days to 68°F by the end. The sky is clear or mostly clear about 31% 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 Mentor's 5th-clearest and 8th-windiest month. For the whole year in context, see Mentor's year-round climate.

Daytime high
63°
5th warmest
Overnight low
54°
8th coldest
Rainfall
4.0 in
13.1 wet days
Daylight
14 h 18 min
5:11 AM – 7:32 PM
Cloud cover
59%
5th clearest
Wind
10 mph
8th windiest
Solar energy
5.96 kWh/m²
Travel score
5.0
out of 10

Mentor is city in Lake County, Ohio, United States.

Density
647/km²
people per km²
Founded
1797

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 57°F in the first days to 68°F by the end.

A typical May day in Mentor reaches about 63°F in the afternoon and slips back to 54°F overnight — a 9°F spread between the day's warmth and the night's chill. On most days the high lands between 53°F and 74°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)
15647
25748
35748
45849
55849
65949
75950
86050
96051
106051
116152
126152
136252
146253
156253
166353
176354
186454
196455
206455
216556
226556
236656
246657
256757
266758
276758
286858
296859
306859
316960

How May really feels in Mentor

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.

Mentor weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan33° / 24°3.915.412.19.30.0
Feb33° / 23°2.911.47.910.30.0
Mar39° / 29°3.612.35.611.70.1
Apr50° / 40°4.313.51.613.12.0
May63° / 54°4.013.1014.35.0
Jun73° / 65°4.913.20156.4
Jul78° / 69°4.412.8014.76.6
Aug76° / 68°4.112.6013.76.8
Sep70° / 61°4.010.4012.36.6
Oct59° / 50°4.313.2010.94.2
Nov47° / 40°4.514.43.69.71.4
Dec38° / 31°4.316.19.990.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% 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 54%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14456
24555
34555
44555
54555
64555
74555
84654
94654
104555
114654
124654
134555
144555
154654
164654
174555
184555
194555
204555
214555
224654
234555
244654
254654
264852
274753
284852
294852
304852
315050

Chance of precipitation in May

Any precipitation

Mentor gets around 4.0 in of rain over 13.1 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 43% and peaks near 44% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
142
242
342
443
543
643
743
843
943
1043
1144
1244
1344
1444
1544
1643
1743
1843
1943
2043
2142
2242
2342
2442
2542
2642
2742
2843
2943
3043
3143

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 70% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1917200
2908200
3908200
4889300
58610310
68511310
78312410
88312410
98013520
108013520
117914520
127814620
137715620
147416730
157416730
167217830
177017940
1868181040
1967181140
2065181241
2162191351
2261191451
2360191551
2457201661
2556201662
2654201772
2752211872
2851211882
2949211982
3048221993
3147222093

Wind in May

Winds average 10 mph in May.

Across May, daily wind ranges from about 10 mph on the calmest days to 11 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
111light breeze
211light breeze
311light breeze
411light breeze
511light breeze
611light breeze
711light breeze
811light breeze
911light breeze
1011light breeze
1111light breeze
1211light breeze
1311light breeze
1411light breeze
1511light breeze
1611light 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
3110light 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 5:29 AM to 5:00 AM, and sunset from 7:16 PM to 7:46 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.85:297:16
213.85:287:17
313.95:277:18
413.95:257:19
513.95:247:20
614.05:237:21
714.05:217:22
814.15:207:23
914.15:197:24
1014.15:187:26
1114.25:177:27
1214.25:167:28
1314.25:157:29
1414.35:137:30
1514.35:127:31
1614.35:117:32
1714.45:107:33
1814.45:097:34
1914.45:097:35
2014.55:087:36
2114.55:077:37
2214.55:067:38
2314.65:057:39
2414.65:047:40
2514.65:047:41
2614.65:037:41
2714.75:027:42
2814.75:027:43
2914.75:017:44
3014.75:007:45
3114.85:007:46

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.96 kWh/m².

For context, solar energy here swings from a low near 1.29 kWh/m² to a high of 6.45 kWh/m² in June across the year — May's 5.96 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.7Bright
55.7Bright
65.7Bright
75.7Bright
85.8Bright
95.8Bright
105.8Bright
115.8Bright
125.8Bright
135.8Bright
145.9Bright
155.9Bright
165.9Bright
175.9Bright
186.0Bright
196.0Bright
206.0Intense
216.0Intense
226.1Intense
236.1Intense
246.1Intense
256.1Intense
266.2Intense
276.2Intense
286.2Intense
296.2Intense
306.2Intense
316.2Intense
Planning a trip in May

Is May a good time to visit Mentor?

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

5.0
Sightseeing
5th-best month of the year
1.5
Beach & pool
5th-best month of the year

May is a reasonable time to visit Mentor for sightseeing.

What to pack for Mentor in May

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

In May, Mentor sees daytime highs around 63°F and nights near 54°F. Worth packing: rain gear and sun protection. About 13 days see rain.

rain gearsun protection

Sea temperature near Mentor in May

The nearest coast averages about 50°F in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 14 mi away) is warmest in August at about 74°F and coldest in February near 33°F.

It's comfortable for a long swim from Jul 2 to Sep 23 — about 2.8 months when the water holds above 68°F.

30°40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan36Bracing
Feb33Bracing
Mar34Bracing
Apr40Bracing
May50Bracing
Jun63Cool
Jul73Refreshing
Aug74Refreshing
Sep70Refreshing
Oct61Cool
Nov51Bracing
Dec42Bracing

UV index in Mentor 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 Mentor peaks around June 19 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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 19UV 9Jan 1UV 2
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar4Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug7High
Sep6High
Oct3Moderate
Nov2Moderate
Dec2Low
Location & terrain

Where is Mentor?

Mentor sits at 41.7°N, 81.3°W, 692 ft above sea level, in United States. The nearest listed city is Willoughby, 3.7 mi away.

Topography around Mentor

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

Within 2 miles, the terrain around Mentor has only modest variations in elevation — a maximum elevation change of 253 ft around an average of 705 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 856 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 879 ft.

The land around Mentor is covered by trees (53%), artificial surfaces (24%) and grassland (22%) within 2 miles, trees (47%) and water (30%) within 10 miles, and water (47%) and trees (34%) within 50 miles.

2 miles
253 ft
10 miles
856 ft
50 miles
879 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Willoughby 3.7 mi · Eastlake 5.6 mi · Painesville 6.2 mi · Euclid 11 mi · Mayfield Heights 12 mi · South Euclid 14 mi · Collinwood 14 mi · Cleveland Heights 15 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 Mentor (41.6662°, -81.3396°, elevation 692 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).