May weather forecastMay, OK
May
Weather in May
May, the last month of the spring in May, is a warm month, with temperature in the range of an average high of 78.3°F (25.7°C) and an average low of 58.3°F (14.6°C).Temperature
The start of May brings a subtle shift in the average high-temperature, edging up from April's pleasant 69.8°F (21°C) to a warm 78.3°F (25.7°C). May's temperature lowers to a mean of 58.3°F (14.6°C) during the nights in May.Humidity
May is the most humid month, with an average relative humidity of 60%.Rainfall
In May, in May, it is raining for 10.8 days, with typically 2.13" (54mm) of accumulated precipitation. In May, Oklahoma, during the entire year, the rain falls for 96.5 days and collects up to 16.46" (418mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
The average length of the day is 14h and 8min.On the first day of the month, sunrise is at 6:44 am and sunset at 8:27 pm. On the last day of May, sunrise is at 6:21 am and sunset at 8:51 pm CDT.
Sunshine
In May, the average sunshine is 10.2h.UV index
In May, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.Note: In May, an average UV index of 6 transforms into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
May, OK
- Average high temperature in May: 78.3°F
The warmest month (with the highest average high temperature) is July (94.1°F).
The month with the lowest average high temperature is December (46.9°F).
- Average low temperature in May: 58.3°F
The month with the highest average low temperature is July (73.6°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).
Average pressure in May
May, 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 (29.85"Hg).
Average wind speed in May
May, OK
- Average wind speed in May: 12.6mph
The windiest month (with the highest average wind speed) is April (13.9mph).
The calmest month (with the lowest average wind speed) is August (10.3mph).
Average humidity in May
May, OK
- Average humidity in May: 60%
The month with the highest relative humidity is May (60%).
The month with the lowest relative humidity is July (52%).
Average rainfall in May
May, OK
- Average rainfall in May: 2.13"
The wettest month (with the highest rainfall) is October (2.2").
The driest month (with the least rainfall) is February (0.55").
Average rainfall days in May
May, OK
- Average rainfall days in May: 10.8 days
The month with the highest number of rainy days is August (12.8 days).
The month with the least rainy days is January (3.2 days).
Average snowfall in May
May, OK
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.65").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
May, OK
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (3.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
May, OK
- Average daylight in May: 14h and 6min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in May: 10h and 12min
The months with the most sunshine are June and July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in May
May, OK
- Average sunshine days in May: 18 days
The month with the most sunshine days is January (25.8 days).
The month with the least sunshine days is August (15.1 days).
Average UV index in May
May, 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
May, OK
- Average cloud cover in May: 28
The month with the most cloud cover is April (Cloud cover 31).
The month with the least cloud cover is June (Cloud cover 17).
Average visibility in May
May, 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).





