May weather forecast and climate
Helena, GA

The last month of the spring, May, is another warm month in Helena, Georgia, with average temperature ranging between max 82.4°F (28°C) and min 64°F (17.8°C).

Temperature

In Helena, the average high-temperature slightly increases, from 75.4°F (24.1°C) in April, to a still moderately hot 82.4°F (28°C). The average low-temperature, in Helena, is 64°F (17.8°C).

Heat index

In May, the average heat index is appraised at a tropical 88°F (31.1°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'real feel', 'feels like', or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (pregnancy, clothing, differences in body mass, height, and shape). Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

The average relative humidity in May is 73%.

Rainfall

In May, in Helena, the rain falls for 11.4 days. Throughout May, 1.26" (32mm) of precipitation is accumulated. Throughout the year, in Helena, Georgia, there are 133.4 rainfall days, and 16.57" (421mm) of precipitation is accumulated.

Snowfall

In Helena snow does not fall in February through December.

Daylight

In Helena, the average length of the day in May is 13.8h.

Sunshine

The average sunshine in Helena is 10.3h.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index in Helena. A UV Index reading of 6 to 7 represents a high threat to health from the exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 7 transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in May in Helena?

In May, in Helena, the average high-temperature is 82.4°F (28°C), and the average low-temperature is 64°F (17.8°C). In May, the average heat index (a.k.a. 'feels like', 'felt air temperature'), that takes the relative humidity and factores it into the air temperature reading, is appraised at 88°F (31.1°C).

What is the average humidity in May in Helena?

The average relative humidity in May in Helena, Georgia, is 73%.

How many days does it rain in May in Helena?

In Helena, in May, during 11.4 rainfall days, 1.26" (32mm) of precipitation is typically accumulated.

When it does not snow in Helena?

February through December are months without snowfall.

What is the average length of the day in May in Helena?

The average length of the day in May in Helena is 13.8h.

How many hours of sunshine does Helena have in May?

The average sunshine in May in Helena, Georgia, is 10.3h.

What are the months with the highest UV index in Helena?

Months with the highest UV index in Helena are May through August, with an average maximum UV index of 7.

What is the UV index reading in May in Helena?

The average daily maximum UV index in May in Helena is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health from the exposure to the Sun's UV rays.
Average temperature in May - Helena, GA
  • Average high temperature in May: 82.4°F

The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (56.8°F).

  • Average low temperature in May: 64°F

The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (40.6°F).

Average pressure in May - Helena, GA
  • Average pressure in May: 30.02"

The month with the highest atmospheric pressure is January (30.15").
Months with the lowest atmospheric pressure are June and August (29.98").

Average wind speed in May - Helena, GA
  • Average wind speed in May: 6.8mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

Average humidity in May - Helena, GA
  • Average humidity in May: 73%

The month with the highest relative humidity is December (77%).
Months with the lowest relative humidity are January and November (71%).

Average rainfall in May - Helena, GA
  • Average rainfall in May: 1.26"

The wettest month (with the highest rainfall) is August (2.05").
The driest month (with the least rainfall) is September (0.83").

Average rainfall days in May - Helena, GA
  • Average rainfall days in May: 11.4 days

The month with the highest number of rainy days is August (17.3 days).
The month with the least rainy days is November (6.7 days).

Average snowfall days in May - Helena, GA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (0.1 days).
Months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in May / Average sunshine in May - Helena, GA
  • Average daylight in May: 13.8h

The month with the longest days is June (Average daylight: 14.2h).
The month with the shortest days is December (Average daylight: 10.1h).

  • Average sunshine in May: 10.3h

Months with the most sunshine are June and July (Average sunshine: 10.7h).
The month with the least sunshine is December (Average sunshine: 5.3h).

Average sunshine days in May - Helena, GA
  • Average sunshine days in May: 17.8 days

The month with the most sunshine days is November (22.2 days).
The month with the least sunshine days is August (10.8 days).

Average UV index in May - Helena, GA
  • Average UV index in May: 7

Months with the highest UV index are May, June, July and August (UV index 7).
Months with the lowest UV index are January and December (UV index 3).

Average cloud cover in May - Helena, GA
  • Average cloud cover in May: 30

The month with the most cloud cover is December (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 28).

Average visibility in May - Helena, GA
  • Average visibility in May: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).