May weather forecastMcAlester, OK
May
Weather in May
May brings about a warmer weather and the onset of summer in McAlester, Oklahoma. A definitive rise in both the temperatures and humidity levels makes it a distinct shift from the weather in April. This is accompanied by a palpable increase in the daylight hours, leading to sunnier days for the city. May stands out for its rainfall volume, with it recording the highest rainfall of the year. Filled up to 4.41" (112mm), it makes the city a blend of warm, sunny yet wet days.Temperature
The transition from April to May brings a subtle temperature rise, with average high-temperatures increasing from an agreeable 70.5°F (21.4°C) to a moderately hot 77.7°F (25.4°C). McAlester, in the month of May, anticipates a consistent average low-temperature of 60.1°F (15.6°C).Humidity
May is the most humid month, with an average relative humidity of 78%.Rainfall
The month with the most rainfall is May, when the rain falls for 14.4 days and typically aggregates up to 4.41" (112mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In McAlester, Oklahoma, the average length of the day in May is 14h and 1min.On the first day of the month, sunrise is at 6:31 am and sunset at 8:08 pm. On the last day of May, in McAlester, sunrise is at 6:10 am and sunset at 8:31 pm CDT.
Sunshine
In McAlester, the average sunshine in May is 8.8h.UV index
In McAlester, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 6 in May leads to these recommendations:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
McAlester, OK
- Average high temperature in May: 77.7°F
The warmest month (with the highest average high temperature) is July (92.7°F).
The month with the lowest average high temperature is January (48.9°F).
- Average low temperature in May: 60.1°F
The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (33.3°F).
Average pressure in May
McAlester, OK
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
McAlester, OK
- Average wind speed in May: 8.3mph
The windiest month (with the highest average wind speed) is April (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in May
McAlester, OK
- Average humidity in May: 78%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (66%).
Average rainfall in May
McAlester, OK
- Average rainfall in May: 4.41"
The wettest month (with the highest rainfall) is May (4.41").
The driest month (with the least rainfall) is February (1.73").
Average rainfall days in May
McAlester, OK
- Average rainfall days in May: 14.4 days
The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is January (7.7 days).
Average snowfall in May
McAlester, OK
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.14").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
McAlester, OK
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.3 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
McAlester, OK
- 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 54min).
- Average sunshine in May: 8h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in May
McAlester, OK
- Average sunshine days in May: 14.8 days
The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is April (14.5 days).
Average UV index in May
McAlester, OK
- Average UV index in May: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in May
McAlester, OK
- Average cloud cover in May: 37
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in May
McAlester, 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).





