May weather forecast
Carterville, MO

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Weather in May

The last month of the spring, May, is a moderately hot month in Carterville, Missouri, with temperature in the range of an average high of 74.8°F (23.8°C) and an average low of 57.2°F (14°C).

Temperature

The transition from April to May brings a subtle temperature rise, with average high-temperatures increasing from an enjoyable 67.3°F (19.6°C) to a moderately hot 74.8°F (23.8°C). Carterville experiences a nighttime temperature average of 57.2°F (14°C) during May.

Humidity

With an average relative humidity of 79%, May is the most humid month.

Rainfall

The month with the most rainfall is May, when the rain falls for 16.8 days and typically aggregates up to 5.04" (128mm) of precipitation.

Snowfall

Months with snowfall are January through March, May, November and December. May is the first month it typically snows. Throughout May, in the average 0.3 snowfall days, it receives 0.31" (8mm) of snow. In Carterville, during the entire year, snow falls for 11.8 days and aggregates up to 5.63" (143mm) of snow.

Daylight

In Carterville, the average length of the day in May is 14h and 11min.
On the first day of May, sunrise is at 6:22 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 8:31 pm CDT.

Sunshine

The average sunshine in May in Carterville is 8.8h.

UV index

In Carterville, the average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: In May, an average UV index of 6 transforms into the following instructions:
Inhibit overexposure. Warding off sun damage is of utmost importance. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete 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. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures in Carterville?

In Carterville, 74.8°F (23.8°C) is the average high-temperature and 57.2°F (14°C) is the average low-temperature during May.

What is the most humid month?

The most humid month in Carterville is May, with an average relative humidity of 79%.

What is the average humidity in May?

In Carterville, the average relative humidity in May is 79%.

What is the wettest month?

The month with the most rainfall is May, when the rain falls for 16.8 days and typically aggregates up to 5.04" (128mm) of precipitation.

How much does it rain in May?

In Carterville, Missouri, during May, the rain falls for 16.8 days and regularly aggregates up to 5.04" (128mm) of precipitation.

When does it start snowing?

May is the first month it typically snows. Throughout May, in the average 0.3 snowfall days, it receives 0.31" (8mm) of snow.

What is the average length of the day in May?

The average day length in May is 14h and 11min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 6:22 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 8:31 pm CDT.

How long on average sun shines in May?

In May, the average sunshine duration is 8.8h.

What is the UV index intensity in May?

In May, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to Sun's UV rays.
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
Carterville, MO

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

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (42.3°F).

  • Average low temperature in May: 57.2°F

The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).

Average pressure in May
Carterville, MO

Average pressure in May - Carterville, MO
  • Average pressure in May: 29.94"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in May
Carterville, MO

Average wind speed in May - Carterville, MO
  • Average wind speed in May: 9.2mph

The windiest months (with the highest average wind speed) are March and April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

Average humidity in May
Carterville, MO

Average humidity in May - Carterville, MO
  • Average humidity in May: 79%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).

Average rainfall in May
Carterville, MO

Average rainfall in May - Carterville, MO
  • Average rainfall in May: 5.04"

The wettest month (with the highest rainfall) is May (5.04").
The driest month (with the least rainfall) is February (1.54").

Average rainfall days in May
Carterville, MO

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

The month with the highest number of rainy days is May (16.8 days).
The months with the least rainy days are January and December (6.8 days).

Average snowfall in May
Carterville, MO

Average snowfall in May - Carterville, MO
  • Average snowfall in May: 0.31"

The month with the highest snowfall is February (2.44").
The months with the least snowfall are April, June, July, August, September and October (0").

Average snowfall days in May
Carterville, MO

Average snowfall days in May - Carterville, MO
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is February (4 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in May / Average sunshine in May - Carterville, MO
  • Average daylight in May: 14h and 1min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in May: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).

Average sunshine days in May
Carterville, MO

Average sunshine days in May - Carterville, MO
  • Average sunshine days in May: 12.2 days

The month with the most sunshine days is December (21.1 days).
The month with the least sunshine days is May (12.2 days).

Average UV index in May
Carterville, MO

Average UV index in May - Carterville, MO
  • Average UV index in May: 6

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in May
Carterville, MO

Average cloud cover in May - Carterville, MO
  • Average cloud cover in May: 38

The months with the most cloud cover are February and March (Cloud cover 45).
The months with the least cloud cover are June, July and August (Cloud cover 25).

Average visibility in May
Carterville, MO

Average visibility in May - Carterville, 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).

Carterville, Missouri, USA

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