May weather forecast
Helvetia, LA

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Weather in May

May, the last month of the spring in Helvetia, is another warm month, with an average temperature fluctuating between 84.7°F (29.3°C) and 66.2°F (19°C).

Temperature

With the start of May, the average high-temperature marginally shifts from April's 78.6°F (25.9°C) to a still moderately hot 84.7°F (29.3°C). Helvetia usually reports an average low-temperature of 66.2°F (19°C) during the month of May.

Heat index

The heat index value for May is calculated to be a sweltering 95°F (35°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Realize that the values for the heat index are set for shaded places and light winds. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. 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.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

In Helvetia, the average relative humidity in May is 77%.

Rainfall

In Helvetia, in May, during 13.5 rainfall days, 2.44" (62mm) of precipitation is typically accumulated. In Helvetia, Louisiana, during the entire year, the rain falls for 165.4 days and collects up to 26.93" (684mm) of precipitation.

Snowfall

In Helvetia, snow does not fall in February through December.

Daylight

In May, the average length of the day in Helvetia is 13h and 41min.
On the first day of the month, sunrise is at 6:19 am and sunset at 7:41 pm. On the last day of May, sunrise is at 6:02 am and sunset at 7:59 pm CDT.

Sunshine

The average sunshine in May in Helvetia is 9.8h.

UV index

In Helvetia, the average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 6 during May translates into these guidelines:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
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Frequently asked questions

How hot is May in Helvetia?

The high-temperature, in May, in Helvetia, records 84.7°F (29.3°C), while the low-temperature is 66.2°F (19°C). In May, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 95°F (35°C).

What is the average humidity in May in Helvetia?

In Helvetia, Louisiana, the average relative humidity in May is 77%.

How much does it rain in Helvetia in May?

In May, in Helvetia, the rain falls for 13.5 days. Throughout May, 2.44" (62mm) of precipitation is accumulated.

When it does not snow in Helvetia?

February through December are months without snowfall.

How many hours of daylight does Helvetia have in May?

In Helvetia, the average day length in May is 13h and 41min.

When are sunrise and sunset in May in Helvetia?

In May, on the first day of the month, sunrise is at 6:19 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 7:59 pm CDT.

How long on average sun shines in May in Helvetia?

In Helvetia, the average sunshine duration in May is 9.8h.

How high is the UV index in May in Helvetia?

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

Average temperature in May
Helvetia, LA

Average temperature in May - Helvetia, LA
  • Average high temperature in May: 84.7°F

The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (60.1°F).

  • Average low temperature in May: 66.2°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 (44.2°F).

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Average pressure in May
Helvetia, LA

Average pressure in May - Helvetia, LA
  • Average pressure in May: 29.99"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.96"Hg).

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Average wind speed in May
Helvetia, LA

Average wind speed in May - Helvetia, LA
  • Average wind speed in May: 6mph

The windiest month (with the highest average wind speed) is February (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

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Average humidity in May
Helvetia, LA

Average humidity in May - Helvetia, LA
  • Average humidity in May: 77%

The months with the highest relative humidity are February, September and December (80%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in May
Helvetia, LA

Average rainfall in May - Helvetia, LA
  • Average rainfall in May: 2.44"

The wettest month (with the highest rainfall) is July (4.25").
The driest month (with the least rainfall) is November (1.18").

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Average rainfall days in May
Helvetia, LA

Average rainfall days in May - Helvetia, LA
  • Average rainfall days in May: 13.5 days

The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is November (8.1 days).

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Average snowfall in May
Helvetia, LA

Average snowfall in May - Helvetia, LA
  • Average snowfall in May: 0"

The month with the highest snowfall is January (0.16").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in May
Helvetia, LA

Average snowfall days in May - Helvetia, LA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in May /
Average sunshine in May
Helvetia, LA

Average daylight in May / Average sunshine in May - Helvetia, LA
  • Average daylight in May: 13h and 4min

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: 9h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

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Average sunshine days in May
Helvetia, LA

Average sunshine days in May - Helvetia, LA
  • Average sunshine days in May: 15 days

The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is July (7.3 days).

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Average UV index in May
Helvetia, LA

Average UV index in May - Helvetia, LA
  • Average UV index in May: 6

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in May
Helvetia, LA

Average cloud cover in May - Helvetia, LA
  • Average cloud cover in May: 33

The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 27).

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Average visibility in May
Helvetia, LA

Average visibility in May - Helvetia, LA
  • Average visibility in May: 5mi

The months with the highest visibility are January, February, June, August, October, November and December (6mi).
The months with the lowest visibility are March, April, May, July and September (5mi).

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Helvetia, Louisiana, USA

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