May weather forecast
Keysville, FL

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Weather in May

May, the last month of the spring in Keysville, is a tropical month, with temperature in the range of an average low of 68.7°F (20.4°C) and an average high of 86.7°F (30.4°C).

Temperature

Keysville's average high-temperature marks a hot 86.7°F (30.4°C) with the advent of May, closely mirroring that of the preceding month. The nights of May anticipate an average low-temperature of 68.7°F (20.4°C).

Heat index

The average heat index in May is estimated at a very hot 98.6°F (37°C). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', measures the perceived warmth when incorporating the humidity present in the air. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, 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 highly critical to babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

In May, the average relative humidity in Keysville is 72%.

Rainfall

In Keysville, in May, it is raining for 16.8 days, with typically 3.19" (81mm) of accumulated precipitation. Throughout the year, there are 189 rainfall days, and 36.54" (928mm) of precipitation is accumulated.

Daylight

The average length of the day in May is 13h and 32min.
On the first day of May, sunrise is at 6:47 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 8:19 pm EDT.

Sunshine

The month with the most sunshine is May, with an average of 10.5h of sunshine.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: During May, 7 as the daily maximum UV index converts into the following advice:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is May?

Keysville in May has an average high-temperature of 86.7°F (30.4°C) and an average low-temperature of 68.7°F (20.4°C). The average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, in May is estimated at 98.6°F (37°C).

What is the average humidity in May?

In Keysville, the average relative humidity in May is 72%.

How many days does it rain in May?

In Keysville, in May, during 16.8 rainfall days, 3.19" (81mm) of precipitation is typically accumulated.

What is the average length of the day in May?

In Keysville, the average day length in May is 13h and 32min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 6:47 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 8:19 pm EDT.

What month has the most sunshine?

May has the most sunshine of the year, with an average of 10.5h of sunshine.

How long on average sun shines in May?

The average sunshine duration in May is 10.5h.

What are the months with the highest UV index?

May through September, with an average maximum UV index of 7, are months with the highest UV index.

How high is the UV index in May?

In May, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Keysville, FL

Average temperature in May - Keysville, FL
  • Average high temperature in May: 86.7°F

The warmest month (with the highest average high temperature) is August (90°F).
The month with the lowest average high temperature is January (68.9°F).

  • Average low temperature in May: 68.7°F

The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (51.1°F).

Average pressure in May
Keysville, FL

Average pressure in May - Keysville, FL
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).

Average wind speed in May
Keysville, FL

Average wind speed in May - Keysville, FL
  • Average wind speed in May: 6.2mph

The windiest months (with the highest average wind speed) are March and April (6.8mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).

Average humidity in May
Keysville, FL

Average humidity in May - Keysville, FL
  • Average humidity in May: 72%

The months with the highest relative humidity are August and September (79%).
The month with the lowest relative humidity is March (71%).

Average rainfall in May
Keysville, FL

Average rainfall in May - Keysville, FL
  • Average rainfall in May: 3.19"

The wettest month (with the highest rainfall) is August (6.89").
The driest months (with the least rainfall) are January and November (1.18").

Average rainfall days in May
Keysville, FL

Average rainfall days in May - Keysville, FL
  • Average rainfall days in May: 16.8 days

The month with the highest number of rainy days is July (26.8 days).
The month with the least rainy days is January (9.1 days).

Average daylight in May /
Average sunshine in May
Keysville, FL

Average daylight in May / Average sunshine in May - Keysville, FL
  • Average daylight in May: 13h and 3min

The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).

  • Average sunshine in May: 10h and 3min

The month with the most sunshine is May (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).

Average sunshine days in May
Keysville, FL

Average sunshine days in May - Keysville, FL
  • Average sunshine days in May: 12.8 days

The month with the most sunshine days is January (19.9 days).
The month with the least sunshine days is July (2.9 days).

Average UV index in May
Keysville, FL

Average UV index in May - Keysville, FL
  • Average UV index in May: 7

The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 4).

Average cloud cover in May
Keysville, FL

Average cloud cover in May - Keysville, FL
  • Average cloud cover in May: 29

The months with the most cloud cover are February and December (Cloud cover 37).
The month with the least cloud cover is May (Cloud cover 29).

Average visibility in May
Keysville, FL

Average visibility in May - Keysville, FL
  • 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).

Keysville, Florida, USA

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