Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May's arrival coincides with a subtle temperature rise, moving from April's 73.9°F (23.3°C) to a still moderately hot 82.6°F (28.1°C). Altus encounters a steady low-temperature average of 61.5°F (16.4°C) throughout the month of May.Heat index
The heat index value during May is calculated to be a hot 86°F (30°C). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.Heat index evaluations are typically in the context of light winds and shaded environments. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', gives an indication of how one might feel in terms of heat after considering humidity. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
Humidity
May and December, with an average relative humidity of 60%, are the most humid months.Rainfall
May is the month with the most rainfall. Rain falls for 13.2 days and accumulates 3.35" (85mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In May, the average length of the day 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
The average sunshine in May is 10.2h.UV index
May through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.Note: A maximum high UV index of 7 in May translates into the following recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during May?
What are the most humid months?
What is the average humidity in May?
What is the rainiest month in Altus?
How many days does it rain in May?
When it does not snow?
Does it snow in May?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How many hours of sunshine does Altus have in May?
What are the months with the highest UV index?
What is the UV index reading in May?
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).
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).
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).
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%).
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").
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).
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").
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).
Average daylight in May /
Average sunshine in May
Altus, 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 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).
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).
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).
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).
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).
Altus, Oklahoma, USA
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