Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
As April gives way to May, the average high-temperature displays a slight ascent, adjusting from a warm 75.6°F (24.2°C) to a still moderately hot 83.1°F (28.4°C). May is noted for a mean low-temperature of 64.4°F (18°C).Heat index
For May, the heat index is evaluated at a hot 91.4°F (33°C). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.In terms of the heat index, values are set with light wind and shade conditions in mind. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
Humidity
The average relative humidity in May is 77%.Rainfall
In Helena, during May, the rain falls for 13.8 days and regularly aggregates up to 2.99" (76mm) of precipitation. In Helena, during the entire year, the rain falls for 154.1 days and collects up to 35.12" (892mm) of precipitation.Snowfall
April through December are months without snowfall.Daylight
In Helena, the average length of the day in May is 13h and 48min.On the first day of May, sunrise is at 6:18 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 8:06 pm CDT.
Sunshine
The average sunshine in May is 9.9h.UV index
In Helena, the average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: An average maximum UV index of 6 in May leads to these recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during May?
What is the average humidity in May?
How much does it rain in May?
When it does not snow?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How many hours of sunshine does Helena have in May?
What is the UV index intensity in May?
Average temperature in May
Helena, LA
- Average high temperature in May: 83.1°F
The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is January (55°F).
- Average low temperature in May: 64.4°F
The month with the highest average low temperature is August (73°F).
The coldest month (with the lowest average low temperature) is January (40.3°F).
Average pressure in May
Helena, LA
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in May
Helena, LA
- Average wind speed in May: 6.4mph
The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest months (with the lowest average wind speed) are July and September (5.3mph).
Average humidity in May
Helena, LA
- Average humidity in May: 77%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (69%).
Average rainfall in May
Helena, LA
- Average rainfall in May: 2.99"
The wettest month (with the highest rainfall) is April (3.43").
The driest month (with the least rainfall) is November (2.13").
Average rainfall days in May
Helena, LA
- Average rainfall days in May: 13.8 days
The month with the highest number of rainy days is August (15.5 days).
The month with the least rainy days is October (8.5 days).
Average snowfall in May
Helena, LA
- Average snowfall in May: 0"
The month with the highest snowfall is January (0.55").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in May
Helena, LA
- 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, October, November and December (0 days).
Average daylight in May /
Average sunshine in May
Helena, LA
- Average daylight in May: 13h and 5min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in May: 9h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in May
Helena, LA
- Average sunshine days in May: 15.3 days
The month with the most sunshine days is October (21.4 days).
The month with the least sunshine days is February (13.3 days).
Average UV index in May
Helena, LA
- 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
Helena, LA
- Average cloud cover in May: 32
The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June and October (Cloud cover 28).
Average visibility in May
Helena, LA
- 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).
Helena, Louisiana, USA
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