May weather forecast
Richardson, KY

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Weather in May

The last month of the spring, May, is a warm month in Richardson, Kentucky, with an average temperature varying between 76.3°F (24.6°C) and 55°F (12.8°C).

Temperature

The shift into May is characterized by a rise in the average high-temperature, transitioning from April's enjoyable 65.8°F (18.8°C) to a warm 76.3°F (24.6°C). During May, an average low-temperature of 55°F (12.8°C) is observed.

Humidity

The average relative humidity in May is 77%.

Rainfall

In May, the rain falls for 19.1 days. Throughout May, 3.31" (84mm) of precipitation is accumulated. Throughout the year, there are 176.7 rainfall days, and 33.82" (859mm) of precipitation is accumulated.

Snowfall

In Richardson, snow does not fall in May through September.

Daylight

The average length of the day in May in Richardson is 14h and 14min.
On the first day of the month, sunrise is at 6:33 am and sunset at 8:21 pm. On the last day of May, in Richardson, Kentucky, sunrise is at 6:09 am and sunset at 8:46 pm EDT.

Sunshine

The average sunshine in May is 9.2h.

UV index

The months with the highest UV index in Richardson are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 6 in May transforms into the following instructions:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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Frequently asked questions

What are the temperatures in Richardson in May?

In May, in Richardson, the average high-temperature is 76.3°F (24.6°C), and the average low-temperature is 55°F (12.8°C).

What is the average humidity in May in Richardson?

In Richardson, Kentucky, the average relative humidity in May is 77%.

How much does it rain in Richardson in May?

In May, the rain falls for 19.1 days. Throughout May, 3.31" (84mm) of precipitation is accumulated.

When it does not snow in Richardson?

May through September are months without snowfall in Richardson, Kentucky.

Does it snow in Richardson in May?

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

How many hours of daylight does Richardson have in May?

The average day length in May is 14h and 14min.

When is the sunrise / sunset in May in Richardson?

On the first day of May in Richardson, sunrise is at 6:33 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 8:46 pm EDT.

How long on average sun shines in May in Richardson?

In Richardson, the average sunshine duration in May is 9.2h.

When is the highest UV index in Richardson?

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

How high is the UV index in May in Richardson?

The average daily maximum UV index in May in Richardson is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Richardson, KY

Average temperature in May - Richardson, KY
  • Average high temperature in May: 76.3°F

The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (39.7°F).

  • Average low temperature in May: 55°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

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Average pressure in May
Richardson, KY

Average pressure in May - Richardson, KY
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in May
Richardson, KY

Average wind speed in May - Richardson, KY
  • Average wind speed in May: 5.7mph

The windiest months (with the highest average wind speed) are January, February and April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

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Average humidity in May
Richardson, KY

Average humidity in May - Richardson, KY
  • Average humidity in May: 77%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is August (74%).

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Average rainfall in May
Richardson, KY

Average rainfall in May - Richardson, KY
  • Average rainfall in May: 3.31"

The wettest month (with the highest rainfall) is April (3.43").
The driest month (with the least rainfall) is September (1.93").

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Average rainfall days in May
Richardson, KY

Average rainfall days in May - Richardson, KY
  • Average rainfall days in May: 19.1 days

The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is November (10.6 days).

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Average snowfall in May
Richardson, KY

Average snowfall in May - Richardson, KY
  • Average snowfall in May: 0"

The month with the highest snowfall is February (3.58").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in May
Richardson, KY

Average snowfall days in May - Richardson, KY
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (9.4 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
Richardson, KY

Average daylight in May / Average sunshine in May - Richardson, KY
  • Average daylight in May: 14h and 1min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in May: 9h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in May
Richardson, KY

Average sunshine days in May - Richardson, KY
  • Average sunshine days in May: 9.7 days

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is May (9.7 days).

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Average UV index in May
Richardson, KY

Average UV index in May - Richardson, KY
  • Average UV index in May: 6

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

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Average cloud cover in May
Richardson, KY

Average cloud cover in May - Richardson, KY
  • Average cloud cover in May: 42

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in May
Richardson, KY

Average visibility in May - Richardson, KY
  • Average visibility in May: 5mi

The months with the highest visibility are April, June, August, October and November (6mi).
The months with the lowest visibility are January, February, March, May, July, September and December (5mi).

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Richardson, Kentucky, USA

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