May weather forecast
Lebanon, MO

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Weather in May

The last month of the spring, May, is a moderately hot month in Lebanon, Missouri, with temperature in the range of an average high of 75.4°F (24.1°C) and an average low of 56.3°F (13.5°C).

Temperature

With the onset of May, Lebanon's weather sees a temperature rise, transitioning from a comfortable 66°F (18.9°C) in April to a moderately hot 75.4°F (24.1°C). During May, the nighttime temperature in Lebanon averages to a refreshing 56.3°F (13.5°C).

Humidity

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

Rainfall

The month with the most rainfall is May, when the rain falls for 18.3 days and typically aggregates up to 4.57" (116mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, Lebanon aggregates 0.16" (4mm) of snow. Throughout the year, there are 25.2 snowfall days, and 10.91" (277mm) of snow is accumulated.

Daylight

In May, the average length of the day is 14h and 13min.
On the first day of May in Lebanon, sunrise is at 6:14 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:26 pm CDT.

Sunshine

In May, the average sunshine is 9.1h.

UV index

The months with the highest UV index 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 unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index, 6 in May, converts into the following recommendations:
Fend off overexposure. Sun protection is vital. 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. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Updated: Aug 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures?

The average high-temperature, in May, in Lebanon, is 75.4°F (24.1°C), while the average low-temperature is 56.3°F (13.5°C).

What is the most humid month?

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

What is the average humidity in May in Lebanon?

In May, the average relative humidity is 78%.

What is the wettest month?

The month with the most rainfall in Lebanon is May, when the rain falls for 18.3 days and typically aggregates up to 4.57" (116mm) of precipitation.

How many days does it rain in May?

In Lebanon, in May, during 18.3 rainfall days, 4.57" (116mm) of precipitation is typically accumulated.

What is the last month it snows?

May is the last month it regularly snows. During 0.2 snowfall days, in May, Lebanon aggregates 0.16" (4mm) of snow.

What is the average length of the day in May?

In May, the average day length is 14h and 13min.

What time are sunrise and sunset in May?

On the first day of May, sunrise is at 6:14 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:26 pm CDT.

How long on average sun shines in May?

In Lebanon, the average sunshine duration in May is 9.1h.

What is the month with the highest UV index?

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

What is the UV index intensity in May?

In May, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes 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
Lebanon, MO

Average temperature in May - Lebanon, MO
  • Average high temperature in May: 75.4°F

The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (40.3°F).

  • Average low temperature in May: 56.3°F

The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).

Average pressure in May
Lebanon, MO

Average pressure in May - Lebanon, 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 (29.93"Hg).

Average wind speed in May
Lebanon, MO

Average wind speed in May - Lebanon, MO
  • Average wind speed in May: 8mph

The windiest months (with the highest average wind speed) are January and March (9.6mph).
The calmest month (with the lowest average wind speed) is July (6mph).

Average humidity in May
Lebanon, MO

Average humidity in May - Lebanon, MO
  • Average humidity in May: 78%

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are August, September, October and November (73%).

Average rainfall in May
Lebanon, MO

Average rainfall in May - Lebanon, MO
  • Average rainfall in May: 4.57"

The wettest month (with the highest rainfall) is May (4.57").
The driest month (with the least rainfall) is September (1.69").

Average rainfall days in May
Lebanon, MO

Average rainfall days in May - Lebanon, MO
  • Average rainfall days in May: 18.3 days

The month with the highest number of rainy days is May (18.3 days).
The months with the least rainy days are January and February (8.3 days).

Average snowfall in May
Lebanon, MO

Average snowfall in May - Lebanon, MO
  • Average snowfall in May: 0.16"

The month with the highest snowfall is February (3.39").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in May
Lebanon, MO

Average snowfall days in May - Lebanon, MO
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Lebanon, 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 36min).

  • Average sunshine in May: 9h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).

Average sunshine days in May
Lebanon, MO

Average sunshine days in May - Lebanon, MO
  • Average sunshine days in May: 10.6 days

The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is May (10.6 days).

Average UV index in May
Lebanon, MO

Average UV index in May - Lebanon, 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).

Average cloud cover in May
Lebanon, MO

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

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 27).

Average visibility in May
Lebanon, MO

Average visibility in May - Lebanon, 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).

Lebanon, Missouri, USA

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