May weather forecast
Cincinnati, OH

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A beautiful park in spring next to the John A Roebling suspension bridge in Cincinnati, Ohio
A beautiful park in spring next to the John A Roebling suspension bridge in Cincinnati, Ohio

Weather in May

May brings Cincinnati's outdoor season to full bloom with warmer temperatures, longer daylight hours, and plenty of sunshine. The arrival of this month ignites the transition to summer, with the distinctive features of spring subtly receding in the background. A trademark increase in temperature as highs touch 73.8°F (23.2°C), marks May as the stepping stone to the approaching heat of summer. It is the quintessential time for outdoor festivities, and the populace eagerly anticipates the arrival of summer in all its sun-soaked glory.

Temperature

In Cincinnati, the onset of May comes with an increased average high-temperature, moving from April's refreshing 63.7°F (17.6°C) to a warm 73.8°F (23.2°C). In May, Cincinnati's temperature tends to fall to an average low of 55.8°F (13.2°C) during the night.

Humidity

In Cincinnati, the average relative humidity in May is 79%.

Rainfall

The month with the most rainfall is May, when the rain falls for 17.7 days and typically aggregates up to 3.27" (83mm) of precipitation.

Snowfall

In Cincinnati, snow does not fall in May through October.

Daylight

In Cincinnati, the average length of the day in May is 14h and 20min.
On the first day of the month, sunrise is at 6:38 am and sunset at 8:31 pm. On the last day of May, sunrise is at 6:13 am and sunset at 8:57 pm EDT.

Sunshine

The average sunshine in May is 8.8h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: A daily high UV index of 6 in May leads to these guidelines:
Shield from overexposure. Defense against sun-related harm is required. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature in Cincinnati?

In May, the average high-temperature and low-temperature are 73.8°F (23.2°C) and 55.8°F (13.2°C) respectively.

What is the average humidity in May?

The average relative humidity in May is 79%.

What is the wettest month?

The month with the most rainfall in Cincinnati is May, when the rain falls for 17.7 days and typically aggregates up to 3.27" (83mm) of precipitation.

How much does it rain in May?

In Cincinnati, in May, it is raining for 17.7 days, with typically 3.27" (83mm) of accumulated precipitation.

When it does not snow?

In Cincinnati, snow does not fall in May through October.

Does it snow in May?

In May, it doesn't snow. April is the latest month when it typically snows.

What is the average length of the day in May?

In May, the average day length is 14h and 20min.

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:38 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 8:57 pm EDT.

How many hours of sunshine does Cincinnati have in May?

In May, the average sunshine duration in Cincinnati is 8.8h.

What is the month with the highest UV index?

May through August, with an average maximum UV index of 6, are months with the highest UV index in Cincinnati, Ohio.

What is the UV index reading in May?

In Cincinnati, the average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Cincinnati, OH

Average temperature in May - Cincinnati, OH
  • Average high temperature in May: 73.8°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in May: 55.8°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).

Average pressure in May
Cincinnati, OH

Average pressure in May - Cincinnati, OH
  • Average pressure in May: 29.98"Hg

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in May
Cincinnati, OH

Average wind speed in May - Cincinnati, OH
  • Average wind speed in May: 6.7mph

The windiest month (with the highest average wind speed) is January (8.7mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in May
Cincinnati, OH

Average humidity in May - Cincinnati, OH
  • Average humidity in May: 79%

The months with the highest relative humidity are February and December (81%).
The months with the lowest relative humidity are August, September and October (74%).

Average rainfall in May
Cincinnati, OH

Average rainfall in May - Cincinnati, OH
  • Average rainfall in May: 3.27"

The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is September (1.54").

Average rainfall days in May
Cincinnati, OH

Average rainfall days in May - Cincinnati, OH
  • Average rainfall days in May: 17.7 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (8.2 days).

Average snowfall in May
Cincinnati, OH

Average snowfall in May - Cincinnati, OH
  • Average snowfall in May: 0"

The month with the highest snowfall is February (2.01").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in May
Cincinnati, OH

Average snowfall days in May - Cincinnati, OH
  • Average snowfall days in May: 0 days

The months with the highest number of snowfall days are January and February (5.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Cincinnati, OH

Average daylight in May / Average sunshine in May - Cincinnati, OH
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in May: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in May
Cincinnati, OH

Average sunshine days in May - Cincinnati, OH
  • Average sunshine days in May: 10.9 days

The months with the most sunshine days are October and November (19.2 days).
The month with the least sunshine days is May (10.9 days).

Average UV index in May
Cincinnati, OH

Average UV index in May - Cincinnati, OH
  • Average UV index in May: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in May
Cincinnati, OH

Average cloud cover in May - Cincinnati, OH
  • Average cloud cover in May: 42

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in May
Cincinnati, OH

Average visibility in May - Cincinnati, OH
  • Average visibility in May: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Cincinnati, Ohio, USA

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