Marysville weather in May

In May, Marysville sees average daytime highs of 71°F and overnight lows near 52°F, with 4.4 in of rain across 13.6 wet days and about 14.2 hours of daylight. It is the 5th-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 67°F in the first days to 75°F by the end. The sky is clear or mostly clear about 22% 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 36 min by month's end. Set against the rest of the year, May is Marysville's 7th-clearest and 8th-windiest month. For the whole year in context, see Marysville's year-round climate.

Daytime high
71°
5th warmest
Overnight low
52°
8th coldest
Rainfall
4.4 in
13.6 wet days
Daylight
14 h 12 min
5:23 AM – 7:36 PM
Cloud cover
65%
7th clearest
Wind
8 mph
8th windiest
Solar energy
5.73 kWh/m²
Travel score
6.0
out of 10

Marysville is city in Union County, Ohio, United States.

Density
532/km²
people per km²
Founded
1816

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 67°F in the first days to 75°F by the end.

A typical May day in Marysville reaches about 71°F in the afternoon and slips back to 52°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 59°F and 83°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)
16647
26748
36748
46749
56849
66849
76850
86950
96950
106951
117051
127051
137051
147052
157152
167152
177153
187253
197253
207254
217354
227354
237355
247355
257455
267456
277456
287556
297557
307557
317657

How May really feels in Marysville

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.

Marysville weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan35° / 21°3.110.65.59.50.0
Feb39° / 24°2.594.710.40.0
Mar49° / 32°3.6112.711.71.9
Apr62° / 42°4.512.60.8134.8
May71° / 52°4.413.6014.26.0
Jun80° / 62°4.111.9014.86.2
Jul83° / 65°3.611.3014.65.9
Aug81° / 64°3.09.8013.66.5
Sep75° / 56°2.88.5012.37.1
Oct63° / 45°2.98.70.210.95.7
Nov50° / 35°3.19.21.29.82.3
Dec40° / 27°3.29.93.89.20.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 18% of May, with mostly cloudy or overcast conditions the remaining 60%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13664
23862
33862
43862
53862
63862
73862
83862
93961
103961
114060
123961
134060
144060
154159
164060
174159
184159
194159
204258
214159
224159
234159
244258
254258
264258
274357
284357
294357
304357
314357

Chance of precipitation in May

Any precipitation

Marysville gets around 4.4 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 44% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
144
244
344
444
544
644
744
844
944
1044
1144
1244
1344
1444
1544
1644
1744
1844
1944
2044
2143
2243
2343
2443
2543
2643
2743
2843
2942
3042
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 65% of days. Sticky, muggy-or-worse air turns up on roughly 5% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1841240
2841240
3821350
4801460
5791461
6771571
7761581
8761581
9741592
107216102
117116103
127016113
137016113
146717124
156717124
166517135
176417145
186317146
196118156
205918167
215918167
225718178
235618188
245419189
255319199
265319199
2751192010
2851192010
2949192110
3048192111
3147192212

Wind in May

Winds average 8 mph in May.

Across May, 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
68light breeze
78light breeze
88light breeze
98light breeze
108light breeze
118light breeze
128light breeze
138light breeze
148light breeze
158light breeze
168light breeze
178light breeze
188light breeze
198light breeze
208light breeze
218light breeze
228light breeze
238light breeze
248light breeze
258light breeze
268light breeze
278light breeze
288light breeze
298light breeze
308light breeze
318light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 42 min at the start of May to 14 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over May. Sunrise moves from 5:40 AM to 5:12 AM, and sunset from 7:21 PM to 7:50 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.75:407:21
213.75:397:22
313.85:387:23
413.85:367:24
513.85:357:25
613.95:347:26
713.95:337:27
813.95:317:28
914.05:307:29
1014.05:297:30
1114.15:287:31
1214.15:277:32
1314.15:267:33
1414.25:257:34
1514.25:247:35
1614.25:237:36
1714.35:227:37
1814.35:217:38
1914.35:207:39
2014.35:197:40
2114.45:197:41
2214.45:187:42
2314.45:177:43
2414.55:167:44
2514.55:167:45
2614.55:157:46
2714.55:147:46
2814.65:147:47
2914.65:137:48
3014.65:137:49
3114.65:127:50

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.73 kWh/m².

For context, solar energy here swings from a low near 1.62 kWh/m² to a high of 6.24 kWh/m² in June across the year — May's 5.73 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
115.6Bright
125.6Bright
135.6Bright
145.6Bright
155.7Bright
165.7Bright
175.7Bright
185.7Bright
195.8Bright
205.8Bright
215.8Bright
225.9Bright
235.9Bright
245.9Bright
255.9Bright
266.0Bright
276.0Bright
286.0Bright
296.0Intense
306.0Intense
316.0Intense
Planning a trip in May

Is May a good time to visit Marysville?

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

6.0
Sightseeing
4th-best month of the year
4.0
Beach & pool
5th-best month of the year

May is a reasonable time to visit Marysville for sightseeing.

What to pack for Marysville in May

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

In May, Marysville sees daytime highs around 71°F and nights near 52°F. Worth packing: rain gear and sun protection. About 14 days see rain.

rain gearsun protection

UV index in Marysville 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 Marysville peaks around June 20 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 20UV 9Dec 22UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun10Very high
Jul9Very high
Aug8Very high
Sep6High
Oct3Moderate
Nov3Moderate
Dec2Low

Air quality in Marysville 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 Marysville is worst in July — around 17 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (October, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1216 µg/m³Oct 238 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Good
Mar12Moderate
Apr12Moderate
May15Moderate
Jun16Moderate
Jul17Moderate
Aug15Moderate
Sep12Good
Oct8Good
Nov8Good
Dec9Good
Location & terrain

Where is Marysville?

Marysville sits at 40.2°N, 83.4°W, 991 ft above sea level, in United States. The nearest listed city is Delaware, 16 mi away.

Topography around Marysville

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

Within 2 miles, the terrain around Marysville has only modest variations in elevation — a maximum elevation change of 154 ft around an average of 1,007 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 292 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,010 ft.

The land around Marysville is covered by grassland (31%), trees (26%) and cropland (20%) within 2 miles, cropland (61%) within 10 miles, and cropland (63%) and trees (20%) within 50 miles.

2 miles
154 ft
10 miles
292 ft
50 miles
1,010 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Delaware 16 mi · Dublin 16 mi · Hilliard 18 mi · Upper Arlington 23 mi · Westerville 24 mi · Columbus 27 mi · Marion 27 mi · Grove City 29 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 Marysville (40.2364°, -83.3671°, elevation 991 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).