May weather forecast
Decatur, AR

Weather in May

May, the last month of the spring in Decatur, is a warm month, with temperature in the range of an average high of 76.6°F (24.8°C) and an average low of 57.6°F (14.2°C).

Temperature

In May, the average high-temperature slightly increases from an agreeable 68.4°F (20.2°C) in April to a warm 76.6°F (24.8°C). In May, the average low-temperature is 57.6°F (14.2°C).

Humidity

With an average relative humidity of 77%, May is the most humid month in Decatur.

Rainfall

May is the month with the most rainfall. Rain falls for 15.5 days and accumulates 4.37" (111mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall in Decatur, Arkansas. May is the last month it regularly snows. During 0.3 snowfall days, Decatur aggregates 0.12" (3mm) of snow. In Decatur, during the entire year, snow falls for 13.9 days and aggregates up to 4.8" (122mm) of snow.

Daylight

The average length of the day in May in Decatur is 14h and 7min.
On the first day of May in Decatur, sunrise is at 6:24 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 8:29 pm CDT.

Sunshine

In Decatur, Arkansas, the average sunshine in May is 8.9h.

UV index

The average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 6 in May transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the most humid month in Decatur?

With an average relative humidity of 77%, May is the most humid month in Decatur.

What is the average humidity in May in Decatur?

In May, the average relative humidity is 77%.

What is the rainiest month in Decatur?

May is the month with the most rainfall. Rain falls for 15.5 days and accumulates 4.37" (111mm) of precipitation.

How much does it rain in Decatur in May?

In Decatur, in May, it is raining for 15.5 days, with typically 4.37" (111mm) of accumulated precipitation.

What is the last month it snows in Decatur?

May is the last month it regularly snows. During 0.3 snowfall days, in May, Decatur aggregates 0.12" (3mm) of snow.

What is the average length of the day in May in Decatur?

The average day length in May in Decatur, Arkansas, is 14h and 7min.

When is the sunrise / sunset in May in Decatur?

In May, on the first day of the month, sunrise is at 6:24 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 8:29 pm CDT.

How long on average sun shines in May in Decatur?

In May, the average sunshine duration in Decatur, Arkansas, is 8.9h.

What is the UV index reading in May in Decatur?

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

Average temperature in May
Decatur, AR

Average temperature in May - Decatur, AR
  • Average high temperature in May: 76.6°F

The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (44.4°F).

  • Average low temperature in May: 57.6°F

The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).

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Average pressure in May
Decatur, AR

Average pressure in May - Decatur, AR
  • Average pressure in May: 29.95"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are April and June (29.93"Hg).

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Average wind speed in May
Decatur, AR

Average wind speed in May - Decatur, AR
  • Average wind speed in May: 8.9mph

The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).

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Average humidity in May
Decatur, AR

Average humidity in May - Decatur, AR
  • Average humidity in May: 77%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in May
Decatur, AR

Average rainfall in May - Decatur, AR
  • Average rainfall in May: 4.37"

The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is February (1.89").

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Average rainfall days in May
Decatur, AR

Average rainfall days in May - Decatur, AR
  • Average rainfall days in May: 15.5 days

The month with the highest number of rainy days is May (15.5 days).
The months with the least rainy days are January and November (8.5 days).

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Average snowfall in May
Decatur, AR

Average snowfall in May - Decatur, AR
  • Average snowfall in May: 0.12"

The month with the highest snowfall is February (1.46").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in May
Decatur, AR

Average snowfall days in May - Decatur, AR
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is February (4.7 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
Decatur, AR

Average daylight in May / Average sunshine in May - Decatur, AR
  • Average daylight in May: 14h and 7min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 44min).

  • Average sunshine in May: 8.9h

The month with the most sunshine is July (Average sunshine: 10.8h).
The months with the least sunshine are January and December (Average sunshine: 5.4).

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Average sunshine days in May
Decatur, AR

Average sunshine days in May - Decatur, AR
  • Average sunshine days in May: 14.5 days

The month with the most sunshine days is December (19.2 days).
The months with the least sunshine days are March and April (13.3 days).

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Average UV index in May
Decatur, AR

Average UV index in May - Decatur, AR
  • Average UV index in May: 6

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in May
Decatur, AR

Average cloud cover in May - Decatur, AR
  • Average cloud cover in May: 38

The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 24).

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Average visibility in May
Decatur, AR

Average visibility in May - Decatur, AR
  • 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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