May weather forecast
Katy, WV

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Weather in May

The last month of the spring, May, is a pleasant month in Katy, West Virginia, with temperature in the range of an average high of 72.5°F (22.5°C) and an average low of 51.6°F (10.9°C).

Temperature

May's arrival signals a temperature shift, moving from an enjoyable 61.7°F (16.5°C) in April to an agreeable 72.5°F (22.5°C). May in Katy is noted for a mean low-temperature of 51.6°F (10.9°C).

Humidity

The average relative humidity in May is 79%.

Rainfall

The month with the most rainfall in Katy is May, when the rain falls for 21.3 days and typically aggregates up to 4.53" (115mm) of precipitation.

Snowfall

Months with snowfall in Katy, West Virginia, are January through May, October through December. May is the last month it regularly snows. During 0.2 snowfall days, in May, Katy aggregates 0.24" (6mm) of snow. Throughout the year, there are 52.1 snowfall days, and 24.21" (615mm) of snow is accumulated.

Daylight

The average length of the day in May in Katy, West Virginia, is 14h and 22min.
On the first day of May in Katy, West Virginia, sunrise is at 6:20 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 5:55 am and sunset at 8:41 pm EDT.

Sunshine

The average sunshine in May in Katy is 8.5h.

UV index

May and July, 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 hazard from exposure to the Sun's UV radiation for average individuals.
Note: A typical high UV index of 6 in May suggests the following recommendations:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
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Frequently asked questions

What is the usual temperature for Katy in May?

Katy in May has an average high-temperature of 72.5°F (22.5°C) and an average low-temperature of 51.6°F (10.9°C).

What is the average humidity in May in Katy?

In May, the average relative humidity in Katy, West Virginia, is 79%.

What is the wettest month in Katy?

The month with the most rainfall in Katy is May, when the rain falls for 21.3 days and typically aggregates up to 4.53" (115mm) of precipitation.

How much does it rain in Katy in May?

In Katy, during May, the rain falls for 21.3 days and regularly aggregates up to 4.53" (115mm) of precipitation.

What is the last month it snows in Katy?

May is the last month it regularly snows in Katy. During 0.2 snowfall days, in May, Katy aggregates 0.24" (6mm) of snow.

How many hours of daylight does Katy have in May?

In Katy, West Virginia, the average day length in May is 14h and 22min.

What time are sunrise and sunset in May in Katy?

In May, on the first day of the month, sunrise is at 6:20 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 5:55 am and sunset at 8:41 pm EDT.

How many hours of sunshine does Katy have in May?

The average sunshine duration in May is 8.5h.

When is the highest UV index in Katy?

The months with the highest UV index in Katy, West Virginia, are May and July, with an average maximum UV index of 6.

What is the UV index intensity in May in Katy?

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

Average temperature in May
Katy, WV

Average temperature in May - Katy, WV
  • Average high temperature in May: 72.5°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (35.8°F).

  • Average low temperature in May: 51.6°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

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Average pressure in May
Katy, WV

Average pressure in May - Katy, WV
  • Average pressure in May: 30"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

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Average wind speed in May
Katy, WV

Average wind speed in May - Katy, WV
  • Average wind speed in May: 5.5mph

The windiest months (with the highest average wind speed) are January and February (7mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

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Average humidity in May
Katy, WV

Average humidity in May - Katy, WV
  • Average humidity in May: 79%

The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (77%).

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Average rainfall in May
Katy, WV

Average rainfall in May - Katy, WV
  • Average rainfall in May: 4.53"

The wettest month (with the highest rainfall) is May (4.53").
The driest month (with the least rainfall) is November (2.24").

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Average rainfall days in May
Katy, WV

Average rainfall days in May - Katy, WV
  • Average rainfall days in May: 21.3 days

The month with the highest number of rainy days is May (21.3 days).
The month with the least rainy days is January (10.8 days).

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Average snowfall in May
Katy, WV

Average snowfall in May - Katy, WV
  • Average snowfall in May: 0.24"

The month with the highest snowfall is February (6.18").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Katy, WV

Average snowfall days in May - Katy, WV
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (15 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
Katy, WV

Average daylight in May / Average sunshine in May - Katy, WV
  • 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 24min).

  • Average sunshine in May: 8h and 3min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).

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Average sunshine days in May
Katy, WV

Average sunshine days in May - Katy, WV
  • Average sunshine days in May: 7.8 days

The month with the most sunshine days is November (15.4 days).
The month with the least sunshine days is May (7.8 days).

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Average UV index in May
Katy, WV

Average UV index in May - Katy, WV
  • Average UV index in May: 6

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

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Average cloud cover in May
Katy, WV

Average cloud cover in May - Katy, WV
  • Average cloud cover in May: 48

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 37).

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Average visibility in May
Katy, WV

Average visibility in May - Katy, WV
  • Average visibility in May: 5mi

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).

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Katy, West Virginia, USA

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