Mount Vernon weather in April

In April, Mount Vernon sees average daytime highs of 61°F and overnight lows near 42°F, with 4.6 in of precipitation across 12.9 wet days and about 13 hours of daylight. It is the 7th-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 56°F in the first days to 65°F by the end. The sky is clear or mostly clear about 21% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 24 min at the start of April to 13 h 42 min by month's end. Set against the rest of the year, April is Mount Vernon's 8th-clearest and 2nd-windiest month. For the whole year in context, see Mount Vernon's year-round climate.

Daytime high
61°
7th warmest
Overnight low
42°
6th coldest
Precipitation
4.6 in
12.9 wet days
Daylight
13 h 06 min
5:58 AM – 7:02 PM
Cloud cover
68%
8th clearest
Wind
9 mph
2nd windiest
Solar energy
4.94 kWh/m²
Travel score
4.5
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 April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 56°F in the first days to 65°F by the end.

A typical April day in Mount Vernon reaches about 61°F in the afternoon and slips back to 42°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 47°F and 75°F. Set against its neighbours, April runs about 13°F warmer than March and about 10°F cooler than May.

20°40°60°80°151015202530
Avg high (°F)Avg low (°F)
15537
25638
35638
45638
55739
65739
75839
85840
95940
105940
116041
126041
136042
146142
156142
166143
176243
186243
196244
206244
216344
226344
236344
246345
256445
266445
276446
286546
296546
306547

How April really feels in Mount Vernon

Once humidity and wind are folded in, April averages 0 days that feel above 90°F and 3 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
3
wind chill below the day's low

The story in April is cold — wind chill drags the overnight "feels like" below the raw low.

Mount Vernon weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 1st-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 April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 12% of April, with mostly cloudy or overcast conditions the remaining 67%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13169
23268
33268
43268
53268
63367
73367
83367
93466
103466
113466
123466
133466
143466
153367
163466
173466
183466
193466
203466
213367
223367
233367
243367
253268
263268
273268
283367
293466
303466

Chance of precipitation in April

Any precipitationSnow

Mount Vernon gets around 4.6 in of rain and snow over 12.9 wet days in April, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 43% and peaks near 45% on the wettest days, and about 1 day brings snow.

0%20%40%60%151015202530
Rain chance (%)Snow chance (%)
1417
2426
3426
4426
5426
6426
7426
8425
9425
10425
11424
12424
13424
14423
15423
16433
17433
18432
19432
20432
21432
22432
23442
24441
25441
26451
27451
28451
29451
30451

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the dry band about 93% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
19820
29730
39730
49730
59640
69640
79640
89640
99451
109451
119451
129451
139361
149361
159361
169361
179451
189451
199451
209361
219361
229361
239361
249172
259172
269082
279082
288992
298992
3087103

Wind in April

Winds average 9 mph in April.

Across April, 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.

051015151015202530
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
179light breeze
189light breeze
199light breeze
209light breeze
218light breeze
228light breeze
238light breeze
248light breeze
258light breeze
268light breeze
278light breeze
288light breeze
298light breeze
308light breeze

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 24 min at the start of April to 13 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 78 minutes over April. Sunrise moves from 6:23 AM to 5:38 AM, and sunset from 6:47 PM to 7:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:236:47
212.46:216:48
312.56:196:49
412.56:186:50
512.66:166:51
612.66:146:52
712.76:136:53
812.76:116:54
912.86:096:55
1012.86:086:56
1112.96:066:57
1212.96:046:58
1312.96:036:59
1413.06:017:00
1513.06:007:01
1613.15:587:02
1713.15:577:03
1813.25:557:04
1913.25:537:05
2013.25:527:06
2113.35:507:08
2213.35:497:09
2313.45:477:10
2413.45:467:11
2513.55:457:12
2613.55:437:13
2713.55:427:14
2813.65:407:15
2913.65:397:16
3013.75:387:17

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.94 kWh/m².

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 — April's 4.94 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.6Bright
44.6Bright
54.6Bright
64.7Bright
74.7Bright
84.7Bright
94.8Bright
104.8Bright
114.8Bright
124.9Bright
134.9Bright
144.9Bright
154.9Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.1Bright
225.1Bright
235.1Bright
245.1Bright
255.1Bright
265.2Bright
275.2Bright
285.2Bright
295.2Bright
305.3Bright
Planning a trip in April

Is April a good time to visit Mount Vernon?

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

4.5
Sightseeing
7th-best month of the year
0.8
Beach & pool
7th-best month of the year

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

What to pack for Mount Vernon in April

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

In April, Mount Vernon sees daytime highs around 61°F and nights near 42°F. Worth packing: a warm layer, rain gear and sun protection. About 13 days see rain.

a warm layerrain gearsun protection

UV index in Mount Vernon in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 6 — enough to warrant sun protection. 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 April

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where April 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
April 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).