May weather forecast
Altus, OK

Weather in May

The last month of the spring, May, is another warm month in Altus, Oklahoma, with an average temperature varying between 61.5°F (16.4°C) and 82.6°F (28.1°C).

Temperature

In Altus, the average high-temperature in May slightly increases from a moderately hot 73.9°F (23.3°C) in April to a still warm 82.6°F (28.1°C). In Altus, Oklahoma, in May, the average low-temperature is 61.5°F (16.4°C).

Heat index

The average heat index in May is estimated at 85.3°F (29.6°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'real feel', 'felt air temperature', or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (differences in body mass, height, and shape, metabolic differences, wind). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

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

Rainfall

The month with the most rainfall is May, when the rain falls for 13.2 days and typically aggregates up to 3.35" (85mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in May is 13h and 59min.
On the first day of the month, sunrise is at 6:46 am and sunset at 8:22 pm. On the last day of May, sunrise is at 6:25 am and sunset at 8:44 pm CDT.

Sunshine

In May, the average sunshine is 10.2h.

UV index

The months with the highest UV index in Altus are May through August, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 7 in May transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in May in Altus?

In May, the average high-temperature is 82.6°F (28.1°C), and the average low-temperature is 61.5°F (16.4°C). In May, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, is estimated at 85.3°F (29.6°C).

What are the most humid months in Altus?

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 Altus?

In May, the average relative humidity is 60%.

What is the rainiest month in Altus?

The month with the most rainfall in Altus, Oklahoma, is May, when the rain falls for 13.2 days and typically aggregates up to 3.35" (85mm) of precipitation.

How many days does it rain in May in Altus?

In Altus, Oklahoma, during May, the rain falls for 13.2 days and regularly aggregates up to 3.35" (85mm) of precipitation.

When it does not snow in Altus?

May through October are months without snowfall in Altus.

Does it snow in Altus in May?

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

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

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

When is the sunrise / sunset in May in Altus?

In May, on the first day of the month, sunrise is at 6:46 am and sunset at 8:22 pm. On the last day of the month, in Altus, sunrise is at 6:25 am and sunset at 8:44 pm CDT.

How long on average sun shines in May in Altus?

The average sunshine duration in May is 10.2h.

What are the months with the highest UV index in Altus?

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

How high is the UV index in May in Altus?

In May, the average daily maximum UV index in Altus is 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Altus, OK

Average temperature in May - Altus, OK
  • Average high temperature in May: 82.6°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 (51.6°F).

  • Average low temperature in May: 61.5°F

The month with the highest average low temperature is July (76.3°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).

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Average pressure in May
Altus, OK

Average pressure in May - Altus, 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).

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Average wind speed in May
Altus, OK

Average wind speed in May - Altus, OK
  • Average wind speed in May: 11.4mph

The windiest month (with the highest average wind speed) is April (12.4mph).
The calmest month (with the lowest average wind speed) is August (8.9mph).

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Average humidity in May
Altus, OK

Average humidity in May - Altus, 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%).

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Average rainfall in May
Altus, OK

Average rainfall in May - Altus, OK
  • Average rainfall in May: 3.35"

The wettest month (with the highest rainfall) is May (3.35").
The driest months (with the least rainfall) are February and November (0.75").

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Average rainfall days in May
Altus, OK

Average rainfall days in May - Altus, OK
  • Average rainfall days in May: 13.2 days

The month with the highest number of rainy days is May (13.2 days).
The month with the least rainy days is January (3.8 days).

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Average snowfall in May
Altus, OK

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

The month with the highest snowfall is February (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in May
Altus, OK

Average snowfall days in May - Altus, OK
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (2.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in May / Average sunshine in May - Altus, OK
  • Average daylight in May: 13h and 59min

The month with the longest days is June (Average daylight: 14h and 26min).
The month with the shortest days is December (Average daylight: 9h and 53min).

  • Average sunshine in May: 10h and 12min

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

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Average sunshine days in May
Altus, OK

Average sunshine days in May - Altus, OK
  • Average sunshine days in May: 15.2 days

The month with the most sunshine days is January (25.9 days).
The month with the least sunshine days is August (15.1 days).

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Average UV index in May
Altus, OK

Average UV index in May - Altus, 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).

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Average cloud cover in May
Altus, OK

Average cloud cover in May - Altus, OK
  • Average cloud cover in May: 25

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

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Average visibility in May
Altus, OK

Average visibility in May - Altus, 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).

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