Mount Vernon weather in March

In March, Mount Vernon sees average daytime highs of 48°F and overnight lows near 31°F, with 3.8 in of precipitation across 11.7 wet days and about 11.7 hours of daylight. It is the 9th-warmest and 4th-wettest month of the year here.

Highs climb over the month, from about 43°F in the first days to 54°F by the end. The sky is clear or mostly clear about 19% of the time in March, and the air most often feels dry.

Daylight stretches from about 11 hours at the start of March to 12 h 24 min by month's end. Set against the rest of the year, March is Mount Vernon's 9th-clearest and 4th-windiest month. For the whole year in context, see Mount Vernon's year-round climate.

Daytime high
48°
9th warmest
Overnight low
31°
4th coldest
Precipitation
3.8 in
11.7 wet days
Daylight
11 h 42 min
6:50 AM – 6:30 PM
Cloud cover
70%
9th clearest
Wind
9 mph
4th windiest
Solar energy
3.86 kWh/m²
Travel score
1.6
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 March

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 43°F in the first days to 54°F by the end.

A typical March day in Mount Vernon reaches about 48°F in the afternoon and slips back to 31°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 33°F and 65°F. Set against its neighbours, March runs about 10°F warmer than February and about 13°F cooler than April.

20°40°60°80°151015202531
Avg high (°F)Avg low (°F)
14227
24227
34327
44328
54328
64428
74428
84429
94529
104529
114630
124630
134730
144731
154731
164831
174832
184932
194933
204933
215033
225034
235134
245134
255235
265235
275335
285336
295436
305437
315537

How March really feels in Mount Vernon

Once humidity and wind are folded in, March averages 0 days that feel above 90°F and 31 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
31
wind chill below the day's low

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

Mount Vernon weather by month

How March compares with the rest of the year at a glance. March is the 9th-warmest and 4th-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 March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 12% of March, with mostly cloudy or overcast conditions the remaining 68%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12971
23070
33169
43169
53169
63268
73268
83367
93466
103466
113466
123466
133466
143367
153367
163367
173268
183367
193268
203169
213169
223169
233169
243070
252971
263070
273169
283169
293169
303169
313169

Chance of precipitation in March

Any precipitationSnow

Mount Vernon gets around 3.8 in of rain and snow over 11.7 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 38% and peaks near 41% on the wettest days, and about 4 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
13718
23718
33717
43717
53717
63716
73716
83716
93715
103615
113614
123614
133613
143613
153612
163612
173611
183611
193610
203710
21379
22389
23388
24398
25398
26408
27407
28407
29417
30417
31417

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the dry band about 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
10991
11991
12991
13991
14991
15991
16991
17991
18991
19991
20991
21991
22991
23991
24991
25991
26991
27991
28991
29991
30982
31982

Wind in March

Winds average 9 mph in March.

Across March, 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
179light breeze
188light breeze
198light breeze
208light breeze
218light breeze
228light breeze
238light breeze
248light breeze
258light breeze
268light breeze
279light breeze
289light breeze
299light breeze
309light breeze
319light breeze

Sunrise & sunset in March

DaylightNight

Daylight runs from about 11 hours at the start of March to 12 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 84 minutes over March. Sunrise moves from 7:13 AM to 6:24 AM, and sunset from 6:13 PM to 6:46 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.07:136:13
211.07:126:14
311.17:106:15
411.17:096:16
511.27:076:18
611.27:066:19
711.37:046:20
811.37:036:21
911.47:016:22
1011.46:596:23
1111.46:586:24
1211.56:566:25
1311.56:546:26
1411.66:536:27
1511.66:516:29
1611.76:506:30
1711.76:486:31
1811.86:466:32
1911.86:456:33
2011.96:436:34
2111.96:416:35
2211.96:406:36
2312.06:386:37
2412.06:366:38
2512.16:346:39
2612.16:336:40
2712.26:316:41
2812.26:296:42
2912.36:286:43
3012.36:266:44
3112.46:246:46

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 3.86 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 — March's 3.86 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
13.3Moderate
23.3Moderate
33.4Moderate
43.4Moderate
53.5Moderate
63.5Moderate
73.5Moderate
83.6Moderate
93.6Moderate
103.7Moderate
113.7Moderate
123.8Moderate
133.8Moderate
143.8Moderate
153.9Moderate
163.9Moderate
173.9Moderate
184.0Moderate
194.0Moderate
204.0Bright
214.0Bright
224.1Bright
234.1Bright
244.2Bright
254.2Bright
264.2Bright
274.3Bright
284.3Bright
294.3Bright
304.4Bright
314.4Bright
Planning a trip in March

Is March a good time to visit Mount Vernon?

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

1.6
Sightseeing
9th-best month of the year
0.0
Beach & pool
9th-best month of the year

March is a weaker month for outdoor sightseeing in Mount Vernon.

What to pack for Mount Vernon in March

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

In March, Mount Vernon sees daytime highs around 48°F and nights near 31°F. Pack a warm layer. Worth having: rain gear. About 12 days see rain.

a warm layerrain gear

UV index in Mount Vernon in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 5 — 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 March

GoodModeratePoorUnhealthyVery unhealthy

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