May weather forecast and climate
Columbus, OH

An evening autumn view of the cityscape of Columbus, Ohio
An evening autumn view of the cityscape of Columbus, Ohio
The last month of the spring, May, is a pleasant month in Columbus, Ohio, with average temperature varying between 72°F (22.2°C) and 54.9°F (12.7°C).

Temperature

In May, the average high-temperature increases, from a comfortable 61.5°F (16.4°C) in April, to an agreeable 72°F (22.2°C). The average low-temperature, in Columbus, is 54.9°F (12.7°C).

Humidity

The average relative humidity in Columbus is 76%.

Rainfall

May is the month with the most rainfall in Columbus. Rain falls for 18.4 days and accumulates 3.62" (92mm) of precipitation.

Snowfall

In Columbus snow does not fall through September.

Daylight

In Columbus, the average length of the day is 14.4h.

Sunshine

The average sunshine is 8.9h.

UV index

Months with the highest UV index in Columbus are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from the exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 6 in May interpret into the following advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in May in Columbus?

The average high-temperature, in May, in Columbus, Ohio, is 72°F (22.2°C), while the average low-temperature is 54.9°F (12.7°C).

What is the average humidity in May in Columbus?

The average relative humidity in May is 76%.

How many days does it rain in May in Columbus?

In Columbus, Ohio, during May, the rain falls for 18.4 days and regularly aggregates up to 3.62" (92mm) of precipitation.

What is the wettest month in Columbus?

May is the month with the most rainfall in Columbus. Rain falls for 18.4 days and accumulates 3.62" (92mm) of precipitation.

Does it snow in Columbus in May?

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

When it does not snow in Columbus?

In Columbus, Ohio, snow does not fall in May through September.

How many hours of daylight does Columbus have in May?

In Columbus, Ohio, the average length of the day in May is 14.4h.

How many hours of sunshine does Columbus have in May?

In Columbus, the average sunshine in May is 8.9h.

When is the highest UV index in Columbus?

Months with the highest UV index in Columbus are May through August, with an average maximum UV index of 6.

What is the UV index intensity in May in Columbus?

The average daily maximum UV index in May in Columbus is 6. A UV Index value of 6 to 7 symbolizes a high health threat from unprotected exposure to the UV radiation.
Average temperature in May - Columbus, OH
  • Average high temperature in May: 22.2°C

The warmest month (with the highest average high temperature) is July (28.4°C).
The month with the lowest average high temperature is January (0.8°C).

  • Average low temperature in May: 12.7°C

The month with the highest average low temperature is July (18.6°C).
The coldest month (with the lowest average low temperature) is January (-5.8°C).

Average pressure in May - Columbus, OH
  • Average pressure in May: 1015.3mbar

The month with the highest atmospheric pressure is November (1020.6mbar).
The month with the lowest atmospheric pressure is June (1013.8mbar).

Average wind speed in May - Columbus, OH
  • Average wind speed in May: 11.9km/h

The windiest month (with the highest average wind speed) is January (15.2km/h).
The calmest month (with the lowest average wind speed) is August (8.9km/h).

Average humidity in May - Columbus, OH
  • Average humidity in May: 76%

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (73%).

Average rainfall in May - Columbus, OH
  • Average rainfall in May: 92mm

The wettest month (with the highest rainfall) is May (92mm).
The driest month (with the least rainfall) is September (43mm).

Average rainfall days in May - Columbus, OH
  • Average rainfall days in May: 18.4 days

The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is February (9.1 days).

Average snowfall in May - Columbus, OH
  • Average snowfall in May: 0mm

The month with the highest snowfall is February (84mm).
Months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in May - Columbus, OH
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (12.9 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May / Average sunshine in May - Columbus, OH
  • Average daylight in May: 14.4h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in May: 8.9h

The month with the most sunshine is August (Average sunshine: 10.4h).
The month with the least sunshine is January (Average sunshine: 3.5h).

Average sunshine days in May - Columbus, OH
  • Average sunshine days in May: 10.1 days

The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is May (10.1 days).

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

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

Average cloud cover in May - Columbus, OH
  • Average cloud cover in May: 41

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in May - Columbus, OH
  • Average visibility in May: 9km

Months with the highest visibility are March, April, May, June, July, August, September, October, November and December (9km).
Months with the lowest visibility are January and February (8km).