Cleveland
Ohio, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Cleveland, OH

A view of the Veterans Memorial Bridge on the Cuyahoga River, in Cleveland, Ohio, with a view of the old lift bridge and city buildings out far
A view of the Veterans Memorial Bridge on the Cuyahoga River, in Cleveland, Ohio, with a view of the old lift bridge and city buildings out far
May, the last month of the spring, in Cleveland, is a pleasant month, with temperature in the range of an average low of 50.2°F (10.1°C) and an average high of 69.4°F (20.8°C).

Temperature

In Cleveland, the average high-temperature in May rises, from a moderate 59.2°F (15.1°C) in April, to a pleasant 69.4°F (20.8°C). In Cleveland, in May, the average low-temperature is 50.2°F (10.1°C).

Humidity

In May, the average relative humidity in Cleveland is 67.3%.

Rainfall

In Cleveland, during May, the rain falls for 13.2 days and regularly aggregates up to 3.7" (93mm) of precipitation. In Cleveland, Ohio, during the entire year, the rain falls for 154.9 days and collects up to 39.1" (994.1mm) of precipitation.

Snowfall

May through September are months without snowfall.

Ocean temperature

In Cleveland, the average water temperature is 50.5°F (10.3°C).
Note: Swimming in 50.5°F (10.3°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

In May, the average length of the day is 14.5h.

Sunshine

In May, the average sunshine in Cleveland is 8.5h.

UV index

In May, the average daily maximum UV index in Cleveland, Ohio, is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 7 transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in May in Cleveland?

The average high-temperature, in May, in Cleveland, is 69.4°F (20.8°C), while the average low-temperature is 50.2°F (10.1°C).

What is the average humidity in May in Cleveland?

The average relative humidity in May in Cleveland, Ohio, is 67.3%.

How much does it rain in Cleveland in May?

In Cleveland, during May, the rain falls for 13.2 days and regularly aggregates up to 3.7" (93mm) of precipitation.

Does it snow in Cleveland in May?

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

When it does not snow in Cleveland?

In Cleveland snow does not fall in May through September.

What is the ocean temperature in May in Cleveland?

In May, the average ocean temperature in Cleveland, Ohio, is 50.5°F (10.3°C). Swimming in 50.5°F (10.3°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

What is the average length of the day in May in Cleveland?

The average length of the day in May in Cleveland is 14.5h.

How long on average sun shines in May in Cleveland?

The average sunshine in May in Cleveland, Ohio, is 8.5h.

What is the UV index intensity in May in Cleveland?

In May, the average daily maximum UV index in Cleveland, Ohio, is 7. A UV Index value of 6 to 7 symbolizes a high health threat from unprotected exposure to the UV radiation.
Average temperature in May - Cleveland, OH
  • Average high temperature in May: 69.5°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (34.4°F).

  • Average low temperature in May: 50.1°F

The month with the highest average low temperature is July (64.3°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).

Average humidity in May - Cleveland, OH
  • Average humidity in May: 67.3%

The month with the highest relative humidity is December (74.1%).
The month with the lowest relative humidity is April (66.1%).

Average rainfall in May - Cleveland, OH
  • Average rainfall in May: 3.7"

The wettest month (with the highest rainfall) is September (3.8").
The driest month (with the lowest rainfall) is February (2.3").

Average rainfall days in May - Cleveland, OH
  • Average rainfall days in May: 13.2 days

The month with the highest number of rainy days is January (17.1 days).
The month with the lowest number of rainy days is August (9.8 days).

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

The month with the highest snowfall is January (18.7").
Months with the lowest snowfall are May, June, July, August and September (0").

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

The month with the highest number of snowfall days is January (13.5 days).
Months with the lowest number of snowfall days are May, June, July, August and September (0 days).

Average sea temperature in May - Cleveland, OH
  • Average sea temperature in May: 50.5°F

The best month for swimming (with the highest average sea temperature) is August (76.3°F).
The coldest month (with the lowest average sea temperature) is February (33.2°F).

Average daylight in May / Average sunshine in May - Cleveland, OH
  • Average daylight in May: 14.5h

The month with the longest days is June (Average daylight: 15.1h).
The month with shortest days is December (Average daylight: 9.2h).

  • Average sunshine in May: 8.5h

The month with most sunshine is July (Average sunshine: 9.9h).
The month with least sunshine is December (Average sunshine: 2.2h).

Average UV index in May - Cleveland, OH
  • Average UV index in May: 7

Months with the highest UV index are June and July (UV index 9).
The month with the lowest UV index is December (UV index 1).