Mankato weather in May

In May, Mankato sees average daytime highs of 69°F and overnight lows near 50°F, with 4.7 in of precipitation across 12.6 wet days and about 14.5 hours of daylight. It is the 5th-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 64°F in the first days to 73°F by the end. The sky is clear or mostly clear about 26% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 54 min at the start of May to 15 hours by month's end. Set against the rest of the year, May is Mankato's 7th-clearest and 7th-windiest month. For the whole year in context, see Mankato's year-round climate.

Daytime high
69°
5th warmest
Overnight low
50°
8th coldest
Precipitation
4.7 in
12.6 wet days
Daylight
14 h 36 min
4:55 AM – 7:29 PM
Cloud cover
63%
7th clearest
Wind
10 mph
7th windiest
Solar energy
5.58 kWh/m²
Travel score
5.9
out of 10

Mankato is city in Blue Earth County, Minnesota, USA.

Density
868/km²
people per km²
Founded
1852

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 64°F in the first days to 73°F by the end.

A typical May day in Mankato reaches about 69°F in the afternoon and slips back to 50°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 55°F and 81°F. Set against its neighbours, May runs about 12°F warmer than April and about 9°F cooler than June.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
16344
26344
36444
46445
56545
66546
76546
86647
96647
106647
116748
126748
136749
146849
156849
166950
176950
186951
197051
207051
217052
227152
237152
247153
257253
267254
277254
287354
297355
307355
317455

How May really feels in Mankato

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.

Mankato 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
Jan23° / 1.06.15.99.10.0
Feb27° / 12°1.05.14.710.20.0
Mar41° / 24°2.27.93.911.60.6
Apr56° / 37°3.610.71.813.23.7
May69° / 50°4.712.60.114.55.9
Jun78° / 60°5.112.4015.26.4
Jul81° / 64°4.09.90156.6
Aug79° / 61°4.29.7013.86.9
Sep72° / 53°3.38.7012.37.0
Oct58° / 40°2.48.40.510.84.6
Nov42° / 27°1.86.23.29.40.7
Dec28° / 14°1.46.75.98.70.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% 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 58%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14159
24159
34060
44060
54060
64060
73961
83961
94060
104060
114060
124159
134159
144159
154159
164258
174258
184357
194357
204357
214456
224357
234456
244357
254357
264357
274357
284258
294258
304357
314357

Chance of precipitation in May

Any precipitationSnow

Mankato gets around 4.7 in of rain and snow over 12.6 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 40% and peaks near 43% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1372
2381
3381
4391
5391
6401
7401
8400
9400
10390
11390
12390
13390
14390
15390
16390
17400
18400
19400
20410
21410
22420
23420
24420
25430
26430
27430
28430
29430
30430
31430

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 82% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
196310
295410
395410
494510
594510
693520
792620
892620
991720
1090730
1189830
1288831
1388831
1486941
15851041
16841051
17831151
18811162
19801262
20791272
21771373
22751483
23751483
24721594
25711694
26711694
276917104
286817105
296618115
306519115
316220126

Wind in May

Winds average 10 mph in May.

Across May, daily wind ranges from about 9 mph on the calmest days to 10 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
110light breeze
210light breeze
310light breeze
410light breeze
510light breeze
610light breeze
710light breeze
810light breeze
910light breeze
1010light breeze
1110light breeze
1210light breeze
1310light breeze
1410light breeze
1510light breeze
1610light breeze
1710light breeze
1810light breeze
1910light breeze
2010light breeze
2110light breeze
229light breeze
239light breeze
249light breeze
259light breeze
269light breeze
279light breeze
289light breeze
299light breeze
309light breeze
319light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 54 min at the start of May to 15 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over May. Sunrise moves from 5:15 AM to 4:42 AM, and sunset from 7:11 PM to 7:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.95:157:11
214.05:147:13
314.05:127:14
414.15:117:15
514.15:097:16
614.25:087:17
714.25:077:19
814.25:057:20
914.35:047:21
1014.35:037:22
1114.45:017:23
1214.45:007:25
1314.44:597:26
1414.54:587:27
1514.54:577:28
1614.64:557:29
1714.64:547:30
1814.64:537:31
1914.74:527:32
2014.74:517:34
2114.74:507:35
2214.84:497:36
2314.84:487:37
2414.84:487:38
2514.94:477:39
2614.94:467:40
2714.94:457:41
2815.04:447:42
2915.04:447:43
3015.04:437:43
3115.04:427:44

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.58 kWh/m².

For context, solar energy here swings from a low near 1.56 kWh/m² to a high of 6.38 kWh/m² in July across the year — May's 5.58 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.4Bright
65.4Bright
75.4Bright
85.4Bright
95.4Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.5Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.8Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
315.9Bright
Planning a trip in May

Hazard calendar for Mankato

In seasonPeak

In May, Mankato sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Mankato's rainy season runs April–October, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit Mankato?

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

5.9
Sightseeing
5th-best month of the year
3.2
Beach & pool
5th-best month of the year

May is a reasonable time to visit Mankato for sightseeing.

What to pack for Mankato in May

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

In May, Mankato sees daytime highs around 69°F and nights near 50°F. Worth packing: rain gear and sun protection. About 13 days see rain.

rain gearsun protection

UV index in Mankato in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mankato peaks around June 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighHighModerateLowJun 15UV 9Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr5High
May7High
Jun9Very high
Jul6High
Aug7Very high
Sep6High
Oct4Moderate
Nov2Moderate
Dec1Low
Location & terrain

Where is Mankato?

Mankato sits at 44.2°N, 94.0°W, 830 ft above sea level, in United States. The nearest listed city is Faribault, 38 mi away.

Topography around Mankato

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

Within 2 miles, the terrain around Mankato has only modest variations in elevation — a maximum elevation change of 302 ft around an average of 899 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 374 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 732 ft.

The land around Mankato is covered by trees (53%) and artificial surfaces (27%) within 2 miles, cropland (58%) and trees (23%) within 10 miles, and cropland (80%) within 50 miles.

2 miles
302 ft
10 miles
374 ft
50 miles
732 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Faribault 38 mi · Owatonna 39 mi · Northfield 47 mi · Albert Lea 48 mi · Chaska 48 mi · Prior Lake 48 mi · Shakopee 50 mi · Lakeville 51 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 Mankato (44.1591°, -94.0092°, elevation 830 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).