May weather forecast
Duke, OK

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Weather in May

May, the last month of the spring in Duke, is also a moderately hot month, with an average temperature fluctuating between 82.2°F (27.9°C) and 60.4°F (15.8°C).

Temperature

Duke's weather in May shows a minor rise in the average high-temperature, moving slightly up from April's 73.6°F (23.1°C) to a still moderately hot 82.2°F (27.9°C). Despite considerable daily temperature swings, a steady low-temperature average of 60.4°F (15.8°C) is noted throughout May.

Heat index

For most parts of May, the heat index is evaluated at 84.2°F (29°C). When exposure and activity are sustained, they could induce fatigue, with a chance of heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', blends air temperature and moisture content to represent the felt temperature to humans. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.

Humidity

May and December, with an average relative humidity of 60%, are the most humid months in Duke, Oklahoma.

Rainfall

In Duke, Oklahoma, during May, the rain falls for 11.6 days and regularly aggregates up to 2.91" (74mm) of precipitation. In Duke, during the entire year, the rain falls for 93.6 days and collects up to 19.37" (492mm) of precipitation.

Snowfall

In Duke, snow does not fall in May through October.

Daylight

In May, the average length of the day is 13h and 59min.
On the first day of the month, sunrise is at 6:47 am and sunset at 8:23 pm. On the last day of May, sunrise is at 6:26 am and sunset at 8:45 pm CDT.

Sunshine

In May, the average sunshine is 10.2h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: An average maximum UV index of 7 in May leads to these recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Always opt for UVA and UVB-resistant sunglasses on radiant days. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Updated: Jul 23, 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 Duke, is 82.2°F (27.9°C), while the average low-temperature is 60.4°F (15.8°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, in May is evaluated at 84.2°F (29°C).

What is the most humid month?

The months with the highest humidity are May and December, with an average relative humidity of 60%.

What is the average humidity in May?

In Duke, the average relative humidity in May is 60%.

How many days does it rain in May in Duke?

In Duke, in May, it is raining for 11.6 days, with typically 2.91" (74mm) of accumulated precipitation.

When it does not snow?

In Duke, snow does not fall in May through October.

Does it snow in May?

In May, in Duke, it doesn't snow. April is the latest month when it typically snows.

What is the average length of the day in May?

In Duke, the average day length in May is 13h and 59min.

When are sunrise and sunset in May?

On the first day of May, sunrise is at 6:47 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 8:45 pm CDT.

How many hours of sunshine does Duke have in May?

The average sunshine duration in May is 10.2h.

What are the months with the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 7.

What is the UV index reading in May?

The average daily maximum UV index in May is 7. A UV Index estimate of 6 to 7 represents a high health risk from 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
Duke, OK

Average temperature in May - Duke, OK
  • Average high temperature in May: 82.2°F

The warmest month (with the highest average high temperature) is July (96.4°F).
The month with the lowest average high temperature is December (51.1°F).

  • Average low temperature in May: 60.4°F

The month with the highest average low temperature is July (75.7°F).
The coldest month (with the lowest average low temperature) is January (32.9°F).

Average pressure in May
Duke, OK

Average pressure in May - Duke, OK
  • Average pressure in May: 29.88"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

Average wind speed in May
Duke, OK

Average wind speed in May - Duke, OK
  • Average wind speed in May: 11.6mph

The windiest month (with the highest average wind speed) is April (12.7mph).
The calmest month (with the lowest average wind speed) is August (9.2mph).

Average humidity in May
Duke, OK

Average humidity in May - Duke, OK
  • Average humidity in May: 60%

The months with the highest relative humidity are May and December (60%).
The month with the lowest relative humidity is August (49%).

Average rainfall in May
Duke, OK

Average rainfall in May - Duke, OK
  • Average rainfall in May: 2.91"

The wettest month (with the highest rainfall) is April (2.95").
The driest months (with the least rainfall) are January, February, November and December (0.75").

Average rainfall days in May
Duke, OK

Average rainfall days in May - Duke, OK
  • Average rainfall days in May: 11.6 days

The month with the highest number of rainy days is May (11.6 days).
The month with the least rainy days is January (3.1 days).

Average snowfall in May
Duke, OK

Average snowfall in May - Duke, OK
  • Average snowfall in May: 0"

The month with the highest snowfall is January (1.5").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in May
Duke, OK

Average snowfall days in May - Duke, OK
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Duke, OK

Average daylight in May / Average sunshine in May - Duke, OK
  • Average daylight in May: 14h and 0min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in May: 10h and 1min

The months with the most sunshine are June and July (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

Average sunshine days in May
Duke, OK

Average sunshine days in May - Duke, OK
  • Average sunshine days in May: 17.7 days

The month with the most sunshine days is January (26.2 days).
The month with the least sunshine days is September (16.2 days).

Average UV index in May
Duke, OK

Average UV index in May - Duke, OK
  • Average UV index in May: 7

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

Average cloud cover in May
Duke, OK

Average cloud cover in May - Duke, OK
  • Average cloud cover in May: 26

The months with the most cloud cover are March and April (Cloud cover 29).
The months with the least cloud cover are June and August (Cloud cover 17).

Average visibility in May
Duke, OK

Average visibility in May - Duke, OK
  • 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).

Duke, Oklahoma, USA

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