May weather forecastNorman, OK
May
Weather in May
May brings a shift from the moderate spring temperatures to the beginnings of summer heat in Norman. There is a notable jump in temperatures, with the maxima averaging around 77.7°F (25.4°C). May typically experiences the highest rainfall across the year, with an average precipitation of 3.86" (98mm). Comparatively, this period is noticeably warmer and rainier than April. As the rains dissipate and temperatures climb, residents brace for the summer on the horizon.Temperature
May brings a slight increase in the average high-temperature, progressing from an agreeable 70.9°F (21.6°C) in April to a warm 77.7°F (25.4°C). An average nighttime temperature of 59.9°F (15.5°C) is witnessed throughout May.Humidity
The most humid month is May, with an average relative humidity of 75%.Rainfall
The month with the most rainfall is May, when the rain falls for 15.3 days and typically aggregates up to 3.86" (98mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in May is 14h and 2min.On the first day of May in Norman, sunrise is at 6:37 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 8:38 pm CDT.
Sunshine
In May, the average sunshine in Norman is 9h.UV index
In Norman, Oklahoma, the average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the average person.Note: In May, a daily UV index of 6 turns into the following recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 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. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Norman, OK
- Average high temperature in May: 77.7°F
The warmest month (with the highest average high temperature) is July (93.6°F).
The month with the lowest average high temperature is January (49.1°F).
- Average low temperature in May: 59.9°F
The month with the highest average low temperature is July (72.9°F).
The coldest month (with the lowest average low temperature) is January (32.4°F).
Average pressure in May
Norman, OK
- Average pressure in May: 29.9"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in May
Norman, OK
- Average wind speed in May: 10.4mph
The windiest month (with the highest average wind speed) is April (12mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).
Average humidity in May
Norman, OK
- Average humidity in May: 75%
The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is August (60%).
Average rainfall in May
Norman, OK
- Average rainfall in May: 3.86"
The wettest month (with the highest rainfall) is May (3.86").
The driest months (with the least rainfall) are February and November (1.06").
Average rainfall days in May
Norman, OK
- Average rainfall days in May: 15.3 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in May
Norman, OK
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.3").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Norman, OK
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.2 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
Norman, 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 48min).
- Average sunshine in May: 9h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in May
Norman, OK
- Average sunshine days in May: 13.8 days
The month with the most sunshine days is January (24.2 days).
The month with the least sunshine days is May (13.8 days).
Average UV index in May
Norman, 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
Norman, OK
- Average cloud cover in May: 34
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in May
Norman, 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).
