May weather forecastPernell, AL
May
Weather in May
The last month of the spring, May, is another warm month in Pernell, Alabama, with temperature in the range of an average low of 62.2°F (16.8°C) and an average high of 84°F (28.9°C).Temperature
The shift into May brings a slight increase in the average high-temperature, moving from 76.6°F (24.8°C) in April to a still moderately hot 84°F (28.9°C). May presents a pronounced difference from daytime highs, with a consistent average low-temperature of 62.2°F (16.8°C).Heat index
For most parts of May, the heat index is calculated to be a hot 91.4°F (33°C). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.Note that heat index values are valued for light wind and location in the shade. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Humidity
In Pernell, the average relative humidity in May is 72%.Rainfall
In May, the rain falls for 14.1 days. Throughout May, 3.15" (80mm) of precipitation is accumulated. In Pernell, during the entire year, the rain falls for 165 days and collects up to 37.17" (944mm) of precipitation.Snowfall
In Pernell, snow does not fall in April through November.Daylight
In May, the average length of the day is 13h and 50min.On the first day of the month, sunrise is at 6:01 am and sunset at 7:30 pm. On the last day of May, sunrise is at 5:42 am and sunset at 7:50 pm CDT.
Sunshine
In May, the average sunshine is 10.2h.UV index
In Pernell, Alabama, the average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 6 in May translates into these instructions:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Pernell, AL
- Average high temperature in May: 84°F
The warmest month (with the highest average high temperature) is July (92.1°F).
The month with the lowest average high temperature is January (54.3°F).
- Average low temperature in May: 62.2°F
The months with the highest average low temperature are July and August (72°F).
The coldest month (with the lowest average low temperature) is January (38.5°F).
Average pressure in May
Pernell, AL
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).
Average wind speed in May
Pernell, AL
- Average wind speed in May: 5.7mph
The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in May
Pernell, AL
- Average humidity in May: 72%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (69%).
Average rainfall in May
Pernell, AL
- Average rainfall in May: 3.15"
The wettest month (with the highest rainfall) is December (3.82").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in May
Pernell, AL
- Average rainfall days in May: 14.1 days
The month with the highest number of rainy days is July (20.5 days).
The month with the least rainy days is November (7.8 days).
Average snowfall in May
Pernell, AL
- Average snowfall in May: 0"
The month with the highest snowfall is January (0.35").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Pernell, 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 and October (0 days).
Average daylight in May /
Average sunshine in May
Pernell, AL
- Average daylight in May: 13h and 48min
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 6min).
- Average sunshine in May: 10h and 12min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days in May
Pernell, AL
- Average sunshine days in May: 15.1 days
The month with the most sunshine days is October (21.7 days).
The month with the least sunshine days is July (8 days).
Average UV index in May
Pernell, AL
- Average UV index in May: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in May
Pernell, AL
- Average cloud cover in May: 33
The months with the most cloud cover are February and December (Cloud cover 47).
The months with the least cloud cover are September and October (Cloud cover 30).
Average visibility in May
Pernell, AL
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
