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
May
Weather in May
Temperature
May's arrival signals a subtle increase in average high-temperatures, moving from April's 75.4°F (24.1°C) to a still warm 83.3°F (28.5°C). Nighttime in May brings a stark departure from the daily high, resting at an average low-temperature of 61.7°F (16.5°C).Heat index
The average heat index in May is computed to be a hot 89.6°F (32°C). Fatigue might occur with continuous exposure and activity, potentially causing heat cramps.The heat index's values are generally associated with conditions in shade and light breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Humidity
In Opelika, the average relative humidity in May is 71%.Rainfall
In Opelika, Alabama, in May, it is raining for 14.7 days, with typically 2.8" (71mm) of accumulated precipitation. Throughout the year, there are 173.9 rainfall days, and 37.64" (956mm) of precipitation is accumulated.Snowfall
In Opelika, snow does not fall in April through November.Daylight
In May, the average length of the day is 13h and 51min.On the first day of the month, sunrise is at 5:53 am and sunset at 7:23 pm. On the last day of May, sunrise is at 5:34 am and sunset at 7:44 pm CDT.
Sunshine
The average sunshine in May is 10.3h.UV index
In Opelika, the average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In May, a daily maximum UV index of 6 leads to the following instructions:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in May?
What is the average humidity in May?
How much does it rain in May?
When it does not snow?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How long on average sun shines in May?
How high is the UV index in May?
Average temperature in May
Opelika, AL
- Average high temperature in May: 83.3°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (54.1°F).
- Average low temperature in May: 61.7°F
The months with the highest average low temperature are July and August (71.2°F).
The coldest month (with the lowest average low temperature) is January (37.4°F).
Average pressure in May
Opelika, AL
- Average pressure in May: 30.02"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in May
Opelika, AL
- Average wind speed in May: 5.8mph
The windiest month (with the highest average wind speed) is January (7.7mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in May
Opelika, AL
- Average humidity in May: 71%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (70%).
Average rainfall in May
Opelika, AL
- Average rainfall in May: 2.8"
The wettest months (with the highest rainfall) are August and December (4.06").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in May
Opelika, AL
- Average rainfall days in May: 14.7 days
The month with the highest number of rainy days is July (22.5 days).
The month with the least rainy days is November (7.8 days).
Average snowfall in May
Opelika, AL
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Opelika, AL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in May /
Average sunshine in May
Opelika, AL
- Average daylight in May: 13h and 5min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in May: 10h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in May
Opelika, AL
- Average sunshine days in May: 14.8 days
The months with the most sunshine days are October and November (20.5 days).
The month with the least sunshine days is July (6.5 days).
Average UV index in May
Opelika, AL
- Average UV index in May: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in May
Opelika, AL
- Average cloud cover in May: 31
The month with the most cloud cover is December (Cloud cover 45).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in May
Opelika, AL
- 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).