May weather forecast and climate
Marion, OH

May, the last month of the spring, in Marion, is an agreeable month, with average temperature ranging between max 70.3°F (21.3°C) and min 53.2°F (11.8°C).

Temperature

In May, the average high-temperature increases, from a mild 58.8°F (14.9°C) in April, to a pleasant 70.3°F (21.3°C). The average low-temperature, in Marion, Ohio, is 53.2°F (11.8°C).

Humidity

In May, the average relative humidity is 79%.

Rainfall

The month with the most rainfall in Marion is May when the rain falls for 18.9 days and typically aggregates up to 3.62" (92mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, Marion aggregates 0.04" (1mm) of snow. In Marion, during the entire year, snow falls for 51.8 days, and aggregates up to 15.16" (385mm) of snow.

Daylight

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

Sunshine

In May, the average sunshine is 8.9h.

UV index

The average daily maximum UV index in Marion is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from the exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 Marion?

In May, in Marion, Ohio, the average high-temperature is 70.3°F (21.3°C), and the average low-temperature is 53.2°F (11.8°C).

What is the average humidity in May in Marion?

In May, the average relative humidity is 79%.

How many days does it rain in May in Marion?

In Marion, in May, during 18.9 rainfall days, 3.62" (92mm) of precipitation is typically accumulated.

What is the rainiest month in Marion?

May is the month with the most rainfall in Marion. Rain falls for 18.9 days and accumulates 3.62" (92mm) of precipitation.

What is the last month it snows in Marion?

May is the last month it regularly snows in Marion. During 0.1 snowfall days, in May, Marion aggregates 0.04" (1mm) of snow.

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

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

How long on average sun shines in May in Marion?

In Marion, Ohio, the average sunshine in May is 8.9h.

What is the UV index reading in May in Marion?

In May, the average daily maximum UV index in Marion, Ohio, is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe exposure to the Sun's UV rays.
Average temperature in May - Marion, OH
  • Average high temperature in May: 21.3°C

The warmest month (with the highest average high temperature) is July (26.7°C).
The month with the lowest average high temperature is January (-0.4°C).

  • Average low temperature in May: 11.8°C

The month with the highest average low temperature is July (17.3°C).
The coldest month (with the lowest average low temperature) is January (-6.8°C).

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

The month with the highest atmospheric pressure is November (1020.2mbar).
The month with the lowest atmospheric pressure is June (1013.7mbar).

Average wind speed in May - Marion, OH
  • Average wind speed in May: 12.7km/h

The windiest month (with the highest average wind speed) is January (16.8km/h).
The calmest months (with the lowest average wind speed) are July and August (9.4km/h).

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

Months with the highest relative humidity are January and February (84%).
Months with the lowest relative humidity are April, October and November (76%).

Average rainfall in May - Marion, 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 (49mm).

Average rainfall days in May - Marion, OH
  • Average rainfall days in May: 18.9 days

The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is January (8.8 days).

Average snowfall in May - Marion, OH
  • Average snowfall in May: 1mm

The month with the highest snowfall is February (101mm).
Months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in May - Marion, OH
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (14.8 days).
Months with the least snowfall days are June, July, August and September (0 days).

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

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in May: 8.9h

The month with the most sunshine is July (Average sunshine: 10.1h).
The month with the least sunshine is January (Average sunshine: 3.3h).

Average sunshine days in May - Marion, OH
  • Average sunshine days in May: 9.6 days

The month with the most sunshine days is November (15.2 days).
The month with the least sunshine days is February (9.2 days).

Average UV index in May - Marion, OH
  • Average UV index in May: 5

Months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

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

The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 32).

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

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