May weather forecast
Rock Hill, MO

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Weather in May

The last month of the spring, May, is a warm month in Rock Hill, Missouri, with an average temperature varying between 57.7°F (14.3°C) and 74.8°F (23.8°C).

Temperature

The shift into May is accompanied by a temperature increase, with the average high-temperature rising from a comfortable 65.5°F (18.6°C) in April to a moderately hot 74.8°F (23.8°C). May nights in Rock Hill observe an average temperature dip to a mild 57.7°F (14.3°C).

Humidity

With an average relative humidity of 78%, May is the most humid month.

Rainfall

May is the month with the most rainfall. Rain falls for 16.9 days and accumulates 3.58" (91mm) of precipitation.

Snowfall

In Rock Hill, snow does not fall in April through October.

Daylight

In May, the average length of the day is 14h and 17min.
On the first day of the month, sunrise is at 6:03 am and sunset at 7:53 pm. On the last day of May, in Rock Hill, Missouri, sunrise is at 5:38 am and sunset at 8:19 pm CDT.

Sunshine

In May, the average sunshine is 9.5h.

UV index

The months with the highest UV index in Rock Hill are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 6 in May converts into the following recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
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Frequently asked questions

What are the temperatures in Rock Hill in May?

In May, the average high-temperature and low-temperature in Rock Hill, Missouri, are 74.8°F (23.8°C) and 57.7°F (14.3°C) respectively.

What is the most humid month in Rock Hill?

May is the most humid month, with an average relative humidity of 78%.

What is the average humidity in May in Rock Hill?

In May, the average relative humidity in Rock Hill is 78%.

What is the rainiest month in Rock Hill?

The month with the most rainfall is May, when the rain falls for 16.9 days and typically aggregates up to 3.58" (91mm) of precipitation.

How many days does it rain in May in Rock Hill?

In May, in Rock Hill, the rain falls for 16.9 days. Throughout May, 3.58" (91mm) of precipitation is accumulated.

When it does not snow in Rock Hill?

In Rock Hill, Missouri, snow does not fall in April through October.

How many hours of daylight does Rock Hill have in May?

In Rock Hill, Missouri, the average day length in May is 14h and 17min.

When is the sunrise / sunset in May in Rock Hill?

In May, on the first day of the month, sunrise is at 6:03 am and sunset at 7:53 pm. On the last day of the month, in Rock Hill, sunrise is at 5:38 am and sunset at 8:19 pm CDT.

How many hours of sunshine does Rock Hill have in May?

In Rock Hill, Missouri, the average sunshine duration in May is 9.5h.

When is the highest UV index in Rock Hill?

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

How high is the UV index in May in Rock Hill?

The average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's 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
Rock Hill, MO

Average temperature in May - Rock Hill, MO
  • Average high temperature in May: 74.8°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in May: 57.7°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure in May
Rock Hill, MO

Average pressure in May - Rock Hill, MO
  • Average pressure in May: 29.95"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in May
Rock Hill, MO

Average wind speed in May - Rock Hill, MO
  • Average wind speed in May: 7.2mph

The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in May
Rock Hill, MO

Average humidity in May - Rock Hill, MO
  • Average humidity in May: 78%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in May
Rock Hill, MO

Average rainfall in May - Rock Hill, MO
  • Average rainfall in May: 3.58"

The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is February (1.69").

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Average rainfall days in May
Rock Hill, MO

Average rainfall days in May - Rock Hill, MO
  • Average rainfall days in May: 16.9 days

The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (6.5 days).

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Average snowfall in May
Rock Hill, MO

Average snowfall in May - Rock Hill, MO
  • Average snowfall in May: 0"

The month with the highest snowfall is February (2.6").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in May
Rock Hill, MO

Average snowfall days in May - Rock Hill, MO
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are May, June, July and August (0 days).

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Average daylight in May /
Average sunshine in May
Rock Hill, MO

Average daylight in May / Average sunshine in May - Rock Hill, MO
  • Average daylight in May: 14h and 2min

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 30min).

  • Average sunshine in May: 9h and 3min

The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

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Average sunshine days in May
Rock Hill, MO

Average sunshine days in May - Rock Hill, MO
  • Average sunshine days in May: 11.5 days

The month with the most sunshine days is January (21 days).
The month with the least sunshine days is June (11.2 days).

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Average UV index in May
Rock Hill, MO

Average UV index in May - Rock Hill, MO
  • 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
Rock Hill, MO

Average cloud cover in May - Rock Hill, MO
  • Average cloud cover in May: 36

The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in May
Rock Hill, MO

Average visibility in May - Rock Hill, MO
  • Average visibility in May: 6mi

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

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Rock Hill, Missouri, USA

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