Cass
West Virginia, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Cass, West VA

May, the last month of the spring, in Cass, is an agreeable month, with average temperature ranging between min 44.6°F (7°C) and max 69.8°F (21°C).

Temperature

In May, the average high-temperature rises, from a moderate 59°F (15°C) in April, to an agreeable 69.8°F (21°C). In Cass, in May, the average low-temperature is 44.6°F (7°C).

Rainfall

In Cass, West Virginia, during May, the rain falls for 14 days and regularly aggregates up to 5.2" (133mm) of precipitation. In Cass, during the entire year, the rain falls for 169 days and collects up to 56.7" (1441mm) of precipitation.

Daylight

In Cass, the average length of the day is 14.3h.

Sunshine

May through August, with an average of 7h of sunshine, are months with the most sunshine.

UV index

In Cass, the average daily maximum UV index in May is 8. A UV Index of 8 to 10 symbolizes a very high threat to health from the exposure to the Sun's UV rays for the average person.
The daily maximum UV index of 8 interpret into the following advice:
Take special precautions, as unprotected eyes and skin can be burned and damaged quickly. 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 Cass?

In May, in Cass, West Virginia, the average high-temperature is 69.8°F (21°C), and the average low-temperature is 44.6°F (7°C).

How many days does it rain in May in Cass?

In Cass, West Virginia, during May, the rain falls for 14 days and regularly aggregates up to 5.2" (133mm) of precipitation.

How many hours of daylight does Cass have in May?

In May, the average length of the day in Cass, West Virginia, is 14.3h.

What are the months with the most sunshine in Cass?

May through August, with an average of 7h of sunshine, are months with the most sunshine in Cass, West Virginia.

How many hours of sunshine does Cass have in May?

In May, the average sunshine in Cass, West Virginia, is 7h.

How high is the UV index in May in Cass?

In Cass, West Virginia, the average daily maximum UV index in May is 8. A UV Index value of 8 to 10 symbolizes a very high health vulnerability from the exposure to the Sun's UV radiation.
Average temperature in May - Cass, West VA
  • Average high temperature in May: 70°F

Warmest months (with the highest average high temperature) are July and August (77°F).
The month with the lowest average high temperature is January (36°F).

  • Average low temperature in May: 45°F

Months with the highest average low temperature are July and August (55°F).
The coldest month (with the lowest average low temperature) is January (16°F).

Average rainfall in May - Cass, West VA
  • Average rainfall in May: 5.2"

The wettest month (with the highest rainfall) is July (5.6").
The driest month (with the lowest rainfall) is October (4.2").

Average rainfall days in May - Cass, West VA
  • Average rainfall days in May: 14 days

The month with the highest number of rainy days is January (17 days).
Months with the lowest number of rainy days are September and October (11 days).

Average daylight in May / Average sunshine in May - Cass, West VA
  • Average daylight in May: 14.3h

The month with the longest days is June (Average daylight: 14.8h).
The month with shortest days is December (Average daylight: 9.5h).

  • Average sunshine in May: 7h

Months with most sunshine are May, June, July and August (Average sunshine: 7h).
The month with least sunshine is December (Average sunshine: 3h).

Average UV index in May - Cass, West VA
  • Average UV index in May: 8

Months with the highest UV index are June and July (UV index 10).
Months with the lowest UV index are January and December (UV index 2).