May weather forecastMacclenny, FL
May
Weather in May
May, the last month of the spring in Macclenny, is a tropical month, with an average temperature ranging between max 86.4°F (30.2°C) and min 66.4°F (19.1°C).Temperature
May's average high-temperature is a hot 86.4°F (30.2°C), maintaining a close comparison with April's 81.1°F (27.3°C). During May, Macclenny observes a consistent average nighttime temperature of 66.4°F (19.1°C).Heat index
The heat index value during May is appraised at a very hot 96.8°F (36°C). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.Be informed that the heat index values are oriented around shady conditions and gentle breezes. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.
Humidity
In Macclenny, the average relative humidity in May is 71%.Rainfall
In Macclenny, in May, during 16 rainfall days, 3.46" (88mm) of precipitation is typically accumulated. In Macclenny, during the entire year, the rain falls for 200.2 days and collects up to 37.64" (956mm) of precipitation.Snowfall
March through November are months without snowfall.Daylight
In Macclenny, the average length of the day in May is 13h and 41min.On the first day of the month, sunrise is at 6:44 am and sunset at 8:06 pm. On the last day of May, sunrise is at 6:27 am and sunset at 8:25 pm EDT.
Sunshine
In Macclenny, the average sunshine in May is 10.4h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In May, the maximum UV index of 7 translates into these guidelines:
Prevent overexposure. Protection from the sun's harmful effects is needed. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Macclenny, FL
- Average high temperature in May: 86.4°F
The warmest month (with the highest average high temperature) is August (91.8°F).
The month with the lowest average high temperature is January (63°F).
- Average low temperature in May: 66.4°F
The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (44.6°F).
Average pressure in May
Macclenny, FL
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).
Average wind speed in May
Macclenny, FL
- Average wind speed in May: 5.3mph
The windiest month (with the highest average wind speed) is April (6mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in May
Macclenny, FL
- Average humidity in May: 71%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is March (70%).
Average rainfall in May
Macclenny, FL
- Average rainfall in May: 3.46"
The wettest month (with the highest rainfall) is August (5.87").
The driest month (with the least rainfall) is November (1.42").
Average rainfall days in May
Macclenny, FL
- Average rainfall days in May: 16 days
The months with the highest number of rainy days are July and August (27.5 days).
The month with the least rainy days is November (9.9 days).
Average snowfall days in May
Macclenny, FL
- Average snowfall days in May: 0 days
The months with the highest number of snowfall days are January, February and December (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in May /
Average sunshine in May
Macclenny, FL
- Average daylight in May: 13h and 42min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in May: 10h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in May
Macclenny, FL
- Average sunshine days in May: 13.3 days
The month with the most sunshine days is January (19.2 days).
The month with the least sunshine days is August (1.6 days).
Average UV index in May
Macclenny, FL
- Average UV index in May: 7
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 4).
Average cloud cover in May
Macclenny, FL
- Average cloud cover in May: 32
The month with the most cloud cover is December (Cloud cover 42).
The months with the least cloud cover are May, July and October (Cloud cover 32).
Average visibility in May
Macclenny, FL
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is December (5mi).
