Mount Vernon weather in June

In June, Mount Vernon sees average daytime highs of 79°F and overnight lows near 61°F, with 4.2 in of rain across 12.1 wet days and about 14.8 hours of daylight. It is the 3rd-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 75°F in the first days to 81°F by the end. The sky is clear or mostly clear about 25% of the time in June, and the air most often feels dry.

Daylight stretches from about 14 h 42 min at the start of June to 14 h 54 min by month's end. Set against the rest of the year, June is Mount Vernon's 5th-clearest and 9th-windiest month. For the whole year in context, see Mount Vernon's year-round climate.

Daytime high
79°
3rd warmest
Overnight low
61°
10th coldest
Rainfall
4.2 in
12.1 wet days
Daylight
14 h 54 min
5:04 AM – 7:56 PM
Cloud cover
62%
5th clearest
Wind
7 mph
9th windiest
Solar energy
6.17 kWh/m²
Travel score
6.3
out of 10

Mount Vernon is city in Knox County, Ohio, United States.

Density
674/km²
people per km²
Founded
1805

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

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 75°F in the first days to 81°F by the end.

A typical June day in Mount Vernon reaches about 79°F in the afternoon and slips back to 61°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 70°F and 87°F. Set against its neighbours, June runs about 8°F warmer than May and about 3°F cooler than July.

40°60°80°151015202530
Avg high (°F)Avg low (°F)
17557
27558
37558
47658
57659
67659
77759
87760
97760
107860
117861
127861
137861
147962
157962
167962
178062
188062
198063
208063
218063
228063
238063
248163
258164
268164
278164
288164
298164
308164

How June really feels in Mount Vernon

Once humidity and wind are folded in, June 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

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

Mount Vernon weather by month

How June compares with the rest of the year at a glance. June is the 3rd-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°3.311.46.99.40.0
Feb38° / 23°2.69.45.210.40.0
Mar48° / 31°3.811.73.611.71.6
Apr61° / 42°4.612.91.1134.5
May70° / 52°4.413.7014.25.9
Jun79° / 61°4.212.1014.86.3
Jul82° / 65°3.611.5014.66.2
Aug80° / 63°3.110.4013.66.5
Sep74° / 56°3.09012.37.0
Oct62° / 45°3.19.90.110.95.3
Nov49° / 35°3.29.81.79.82.0
Dec39° / 27°3.310.14.59.20.1

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 21% of June, with mostly cloudy or overcast conditions the remaining 54%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14159
24159
34258
44258
54357
64357
74357
84357
94456
104456
114456
124456
134555
144654
154654
164654
174852
184852
194852
204852
214852
224852
234852
244951
255050
265050
275050
285050
295149
305149

Chance of precipitation in June

Any precipitation

Mount Vernon gets around 4.2 in of rain over 12.1 wet days in June. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 40% and peaks near 42% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
142
242
342
442
542
642
742
842
941
1041
1141
1241
1341
1441
1541
1641
1740
1840
1940
2040
2139
2239
2339
2439
2539
2639
2738
2838
2938
3038

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, June lands in the dry band about 31% of days. Sticky, muggy-or-worse air turns up on roughly 23% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1492021100
2482021100
3472022110
4462122120
5442122120
6432123130
7422123140
8402123150
9392124161
10372124171
11362025181
12342025191
13322026211
14312026221
15302027231
16282027241
17272027241
18262027252
19252027252
20252027262
21242027262
22232028272
23232028273
24222028283
25212028283
26212027283
27202027294
28202027294
29202026295
30192126295

Wind in June

Winds average 7 mph in June.

Across June, 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.

0246810151015202530
Wind speed (mph)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in June

DaylightNight

Daylight runs from about 14 h 42 min at the start of June to 14 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over June. Sunrise moves from 5:08 AM to 5:07 AM, and sunset from 7:47 PM to 7:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
114.75:087:47
214.75:077:48
314.75:077:49
414.75:067:49
514.75:067:50
614.85:067:51
714.85:057:51
814.85:057:52
914.85:057:53
1014.85:057:53
1114.85:057:54
1214.85:047:54
1314.85:047:55
1414.95:047:55
1514.95:047:56
1614.95:047:56
1714.95:047:57
1814.95:047:57
1914.95:047:57
2014.95:057:58
2114.95:057:58
2214.95:057:58
2314.95:057:58
2414.95:057:58
2514.95:067:59
2614.95:067:59
2714.95:067:59
2814.95:077:59
2914.95:077:59
3014.95:077:59

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 6.17 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.55 kWh/m² to a high of 6.17 kWh/m² in June across the year — June's 6.17 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.0Bright
26.0Intense
36.0Intense
46.0Intense
56.0Intense
66.0Intense
76.1Intense
86.1Intense
96.1Intense
106.1Intense
116.1Intense
126.2Intense
136.2Intense
146.2Intense
156.2Intense
166.2Intense
176.2Intense
186.2Intense
196.3Intense
206.3Intense
216.3Intense
226.3Intense
236.3Intense
246.3Intense
256.3Intense
266.3Intense
276.3Intense
286.3Intense
296.3Intense
306.3Intense
Planning a trip in June

Is June a good time to visit Mount Vernon?

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

6.3
Sightseeing
3rd-best month of the year
6.0
Beach & pool
3rd-best month of the year

June is a reasonable time to visit Mount Vernon for sightseeing.

What to pack for Mount Vernon in June

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

In June, Mount Vernon sees daytime highs around 79°F and nights near 61°F. Pack sun protection. Worth having: light clothes and rain gear. About 12 days see rain.

sun protectionlight clothesrain gear

UV index in Mount Vernon in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mount Vernon peaks around June 20 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 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 20UV 9Dec 23UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun10Very high
Jul9Very high
Aug8Very high
Sep6High
Oct3Moderate
Nov3Moderate
Dec2Low

Air quality in Mount Vernon in June

GoodModeratePoorUnhealthyVery unhealthy

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

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

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1216 µg/m³Oct 247 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb11Good
Mar11Good
Apr11Good
May14Moderate
Jun15Moderate
Jul16Moderate
Aug14Moderate
Sep11Good
Oct7Good
Nov7Good
Dec8Good
Location & terrain

Where is Mount Vernon?

Mount Vernon sits at 40.4°N, 82.5°W, 1,001 ft above sea level, in United States. The nearest listed city is Newark, 24 mi away.

Topography around Mount Vernon

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

Within 2 miles, the terrain around Mount Vernon has only modest variations in elevation — a maximum elevation change of 312 ft around an average of 1,040 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 597 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,033 ft.

The land around Mount Vernon is covered by trees (34%) and grassland (31%) within 2 miles, trees (38%), cropland (38%) and grassland (21%) within 10 miles, and trees (40%) and cropland (37%) within 50 miles.

2 miles
312 ft
10 miles
597 ft
50 miles
1,033 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
June weather nearby: Newark 24 mi · Mansfield 25 mi · Pataskala 29 mi · Westerville 30 mi · Delaware 31 mi · Gahanna 33 mi · Ashland 34 mi · Reynoldsburg 35 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 Mount Vernon (40.3934°, -82.4857°, elevation 1,001 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).