May weather forecast
Mehlville, MO

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Weather in May

As summer approaches, May graces Mehlville with substantially warmer days and considerably reduced precipitation rates. With the rise in temperature comes an increase in relative humidity, making the warmth feel a bit more intense. Even more attractively, it is the month with the most daylight hours, reaching up to 14.3 on an average day. As an interesting fact, the month receives the highest average rainfall of 3.94" (100mm). Despite the higher rainfall, the frequency of rain is spread over 16.8 days, balancing out the moisture levels.

Temperature

The start of May in Mehlville brings a rise in the average high-temperature, moving from a comfortable 65.7°F (18.7°C) in April to a warm 75.4°F (24.1°C). Throughout May, the temperature in Mehlville tends to fall to a consistent average low of 57.7°F (14.3°C).

Humidity

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

Rainfall

May is the month with the most rainfall in Mehlville, Missouri. Rain falls for 16.8 days and accumulates 3.94" (100mm) of precipitation.

Snowfall

April through October are months without snowfall in Mehlville.

Daylight

In Mehlville, the average length of the day in May 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, sunrise is at 5:38 am and sunset at 8:19 pm CDT.

Sunshine

In Mehlville, the average sunshine in May is 9.5h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Mehlville. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 6 in May transforms into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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Frequently asked questions

What is the average May temperature in Mehlville?

May temperatures in Mehlville, Missouri, vary between a high-temperature of 75.4°F (24.1°C) and a low-temperature of 57.7°F (14.3°C).

What is the most humid month in Mehlville?

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

What is the average humidity in May in Mehlville?

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

What is the rainiest month in Mehlville?

May is the month with the most rainfall in Mehlville. Rain falls for 16.8 days and accumulates 3.94" (100mm) of precipitation.

How many days does it rain in May in Mehlville?

In Mehlville, during May, the rain falls for 16.8 days and regularly aggregates up to 3.94" (100mm) of precipitation.

When it does not snow in Mehlville?

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

How many hours of daylight does Mehlville have in May?

The average day length in May in Mehlville is 14h and 17min.

When is the sunrise / sunset in May in Mehlville?

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

How many hours of sunshine does Mehlville have in May?

In May, the average sunshine duration is 9.5h.

When is the highest UV index in Mehlville?

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

What is the UV index reading in May in Mehlville?

The average daily maximum UV index in May in Mehlville is 6. A UV Index estimate of 6 to 7 represents a high health threat 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
Mehlville, MO

Average temperature in May - Mehlville, MO
  • Average high temperature in May: 75.4°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 (37.9°F).

  • Average low temperature in May: 57.7°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (25°F).

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Average pressure in May
Mehlville, MO

Average pressure in May - Mehlville, MO
  • Average pressure in May: 29.96"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
Mehlville, MO

Average wind speed in May - Mehlville, MO
  • Average wind speed in May: 7.1mph

The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in May
Mehlville, MO

Average humidity in May - Mehlville, 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 (71%).

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Average rainfall in May
Mehlville, MO

Average rainfall in May - Mehlville, MO
  • Average rainfall in May: 3.94"

The wettest month (with the highest rainfall) is May (3.94").
The driest months (with the least rainfall) are February and November (1.77").

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Average rainfall days in May
Mehlville, MO

Average rainfall days in May - Mehlville, MO
  • Average rainfall days in May: 16.8 days

The month with the highest number of rainy days is July (16.9 days).
The months with the least rainy days are January and February (6.8 days).

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Average snowfall in May
Mehlville, MO

Average snowfall in May - Mehlville, 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
Mehlville, MO

Average snowfall days in May - Mehlville, MO
  • Average snowfall days in May: 0 days

The months with the highest number of snowfall days are January and February (4.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
Mehlville, MO

Average daylight in May / Average sunshine in May - Mehlville, 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 month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

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Average sunshine days in May
Mehlville, MO

Average sunshine days in May - Mehlville, MO
  • Average sunshine days in May: 12.1 days

The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is June (11.6 days).

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Average UV index in May
Mehlville, MO

Average UV index in May - Mehlville, 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
Mehlville, MO

Average cloud cover in May - Mehlville, MO
  • Average cloud cover in May: 37

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in May
Mehlville, MO

Average visibility in May - Mehlville, 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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Mehlville, Missouri, USA

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