May weather forecast
Fort Smith, AR

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Weather in May

The arrival of May signals a departure from the mild spring weather. This time in Fort Smith, Arkansas tends to be vibrant and energetic, with increasingly longer and warmer days. Outdoor events and activities significantly increase, largely because of the idyllic weather that encourages residents to step outside. May welcomes summer warmly with temperatures soaring from 58.6°F (14.8°C) to 79°F (26.1°C). The city looks very picturesque this month, with blooming flowers and lush trees lining the streets.

Temperature

With the beginning of May, Fort Smith's average high-temperature sees a minor increase, transitioning from a pleasant 70.7°F (21.5°C) in April to a warm 79°F (26.1°C). An average nighttime temperature of 58.6°F (14.8°C) is noted during the month of May.

Humidity

March and May, with an average relative humidity of 77%, are the most humid months.

Rainfall

May is the month with the most rainfall in Fort Smith. Rain falls for 13.7 days and accumulates 3.43" (87mm) of precipitation.

Snowfall

In Fort Smith, snow does not fall in April through November.

Daylight

The average length of the day in May in Fort Smith is 14h and 2min.
On the first day of May, sunrise is at 6:25 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 8:27 pm CDT.

Sunshine

In Fort Smith, Arkansas, the average sunshine in May is 9h.

UV index

The average daily maximum UV index in May in Fort Smith is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 6 during May translates into the following recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.

Frequently asked questions

What are the temperatures in Fort Smith in May?

May temperatures vary between a high-temperature of 79°F (26.1°C) and a low-temperature of 58.6°F (14.8°C).

What is the most humid month in Fort Smith?

The months with the highest humidity in Fort Smith are March and May, with an average relative humidity of 77%.

What is the average humidity in May in Fort Smith?

In May, the average relative humidity in Fort Smith, Arkansas, is 77%.

What is the rainiest month in Fort Smith?

The month with the most rainfall in Fort Smith is May, when the rain falls for 13.7 days and typically aggregates up to 3.43" (87mm) of precipitation.

How much does it rain in Fort Smith in May?

In Fort Smith, during May, the rain falls for 13.7 days and regularly aggregates up to 3.43" (87mm) of precipitation.

When it does not snow in Fort Smith?

April through November are months without snowfall in Fort Smith.

What is the average length of the day in May in Fort Smith?

The average day length in May in Fort Smith is 14h and 2min.

What time are sunrise and sunset in May in Fort Smith?

On the first day of May in Fort Smith, Arkansas, sunrise is at 6:25 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 8:27 pm CDT.

How many hours of sunshine does Fort Smith have in May?

In Fort Smith, Arkansas, the average sunshine duration in May is 9h.

What is the UV index intensity in May in Fort Smith?

In Fort Smith, Arkansas, the average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high hazard to health 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
Fort Smith, AR

Average temperature in May - Fort Smith, AR
  • Average high temperature in May: 79°F

The warmest month (with the highest average high temperature) is July (93.4°F).
The month with the lowest average high temperature is January (48°F).

  • Average low temperature in May: 58.6°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).

Average pressure in May
Fort Smith, AR

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

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

Average wind speed in May
Fort Smith, AR

Average wind speed in May - Fort Smith, AR
  • Average wind speed in May: 6.5mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

Average humidity in May
Fort Smith, AR

Average humidity in May - Fort Smith, AR
  • Average humidity in May: 77%

The months with the highest relative humidity are March and May (77%).
The months with the lowest relative humidity are July and August (70%).

Average rainfall in May
Fort Smith, AR

Average rainfall in May - Fort Smith, AR
  • Average rainfall in May: 3.43"

The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is February (1.34").

Average rainfall days in May
Fort Smith, AR

Average rainfall days in May - Fort Smith, AR
  • Average rainfall days in May: 13.7 days

The month with the highest number of rainy days is April (14 days).
The month with the least rainy days is November (7.6 days).

Average snowfall in May
Fort Smith, AR

Average snowfall in May - Fort Smith, AR
  • Average snowfall in May: 0"

The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in May
Fort Smith, AR

Average snowfall days in May - Fort Smith, AR
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (1.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in May /
Average sunshine in May
Fort Smith, AR

Average daylight in May / Average sunshine in May - Fort Smith, AR
  • Average daylight in May: 14h and 0min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in May: 9h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).

Average sunshine days in May
Fort Smith, AR

Average sunshine days in May - Fort Smith, AR
  • Average sunshine days in May: 15.6 days

The month with the most sunshine days is January (21.4 days).
The month with the least sunshine days is April (14.2 days).

Average UV index in May
Fort Smith, AR

Average UV index in May - Fort Smith, AR
  • Average UV index in May: 6

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

Average cloud cover in May
Fort Smith, AR

Average cloud cover in May - Fort Smith, AR
  • Average cloud cover in May: 37

The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 24).

Average visibility in May
Fort Smith, AR

Average visibility in May - Fort Smith, AR
  • Average visibility in May: 5mi

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

Fort Smith, Arkansas, USA

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