May weather forecastGlen Saint Mary, FL
May
Weather in May
May, the last month of the spring in Glen Saint Mary, is a tropical month, with temperature in the range of an average high of 86.4°F (30.2°C) and an average low of 66.4°F (19.1°C).Temperature
At the onset of May, Glen Saint Mary records an average high-temperature of a tropical 86.4°F (30.2°C), showing little deviation from the preceding month. Glen Saint Mary in May anticipates an average nighttime temperature of 66.4°F (19.1°C).Heat index
The heat index value for May is calculated to be a torrid 96.8°F (36°C). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.Remember that heat index calculations are made for conditions in the shade with light wind. 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 'feels like' or 'felt air temperature', is found by incorporating humidity levels into the air temperature measurement. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.
Humidity
The average relative humidity in May is 71%.Rainfall
In May, the rain falls for 16 days. Throughout May, 3.46" (88mm) of precipitation is accumulated. In Glen Saint Mary, 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
The average length of the day in May in Glen Saint Mary is 13h and 41min.On the first day of May in Glen Saint Mary, sunrise is at 6:44 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 8:25 pm EDT.
Sunshine
In Glen Saint Mary, the average sunshine in May is 10.4h.UV index
May through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.Note: In May, the maximum UV index of 7 suggests this advice:
Escape overexposure. People with light skin may incur burns 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. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Glen Saint Mary, 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
Glen Saint Mary, 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
Glen Saint Mary, 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
Glen Saint Mary, 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
Glen Saint Mary, 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
Glen Saint Mary, 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
Glen Saint Mary, 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
Glen Saint Mary, 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
Glen Saint Mary, 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
Glen Saint Mary, 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
Glen Saint Mary, 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
Glen Saint Mary, 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).
