May weather forecast
Chalmette, LA

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Weather in May

May, the last month of the spring in Chalmette, is another warm month, with temperature in the range of an average high of 82.4°F (28°C) and an average low of 71.6°F (22°C).

Temperature

The start of May signals a slight increase in the average high-temperature, moving from 75.9°F (24.4°C) in April to a still moderately hot 82.4°F (28°C). In Chalmette, the average low-temperature during the month of May is a pleasant 71.6°F (22°C).

Heat index

May's average heat index is evaluated at a tropical 87.8°F (31°C). Unrelenting activity during exposure could cause fatigue and potentially lead to heat cramps.
Note that heat index values are valued for light wind and location in the shade. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', gauges the sensation of temperature factoring in the air's moisture content. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.

Humidity

In Chalmette, the average relative humidity in May is 73%.

Rainfall

In Chalmette, in May, during 10.8 rainfall days, 1.38" (35mm) of precipitation is typically accumulated. In Chalmette, during the entire year, the rain falls for 146.1 days and collects up to 16.85" (428mm) of precipitation.

Snowfall

In Chalmette, snow does not fall in February through November.

Daylight

The average length of the day in May is 13h and 40min.
On the first day of the month, sunrise is at 6:16 am and sunset at 7:37 pm. On the last day of May, in Chalmette, sunrise is at 5:59 am and sunset at 7:56 pm CDT.

Sunshine

In May, the average sunshine is 10.6h.

UV index

The months with the highest UV index in Chalmette are May through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: A maximum high daily UV index of 7 during May translates into the following directions:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
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Frequently asked questions

How hot is it in Chalmette in May?

May temperatures in Chalmette, Louisiana, vary between a high-temperature of 82.4°F (28°C) and a low-temperature of 71.6°F (22°C). In May, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 87.8°F (31°C).

What is the average humidity in May in Chalmette?

The average relative humidity in May in Chalmette is 73%.

How many days does it rain in May in Chalmette?

In May, in Chalmette, the rain falls for 10.8 days. Throughout May, 1.38" (35mm) of precipitation is accumulated.

When it does not snow in Chalmette?

February through November are months without snowfall in Chalmette.

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

The average day length in May in Chalmette, Louisiana, is 13h and 40min.

When is the sunrise / sunset in May in Chalmette?

In May, on the first day of the month, sunrise is at 6:16 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 7:56 pm CDT.

How many hours of sunshine does Chalmette have in May?

In May, the average sunshine duration in Chalmette is 10.6h.

What is the month with the highest UV index in Chalmette?

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

What is the UV index intensity in May in Chalmette?

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

Average temperature in May
Chalmette, LA

Average temperature in May - Chalmette, LA
  • Average high temperature in May: 82.4°F

The warmest months (with the highest average high temperature) are July and August (89.2°F).
The month with the lowest average high temperature is January (60.3°F).

  • Average low temperature in May: 71.6°F

The month with the highest average low temperature is August (79.7°F).
The coldest month (with the lowest average low temperature) is January (48.9°F).

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Average pressure in May
Chalmette, LA

Average pressure in May - Chalmette, LA
  • Average pressure in May: 30"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.97"Hg).

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Average wind speed in May
Chalmette, LA

Average wind speed in May - Chalmette, LA
  • Average wind speed in May: 8.5mph

The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).

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Average humidity in May
Chalmette, LA

Average humidity in May - Chalmette, LA
  • Average humidity in May: 73%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in May
Chalmette, LA

Average rainfall in May - Chalmette, LA
  • Average rainfall in May: 1.38"

The wettest month (with the highest rainfall) is August (2.87").
The driest month (with the least rainfall) is January (0.71").

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Average rainfall days in May
Chalmette, LA

Average rainfall days in May - Chalmette, LA
  • Average rainfall days in May: 10.8 days

The month with the highest number of rainy days is August (20.9 days).
The month with the least rainy days is November (5.6 days).

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Average snowfall days in May
Chalmette, LA

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

The months with the highest number of snowfall days are January and December (0.1 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
Chalmette, LA

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

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in May: 10h and 4min

The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

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Average sunshine days in May
Chalmette, LA

Average sunshine days in May - Chalmette, LA
  • Average sunshine days in May: 16.5 days

The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is August (7 days).

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Average UV index in May
Chalmette, LA

Average UV index in May - Chalmette, LA
  • 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 December (UV index 3).

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Average cloud cover in May
Chalmette, LA

Average cloud cover in May - Chalmette, LA
  • Average cloud cover in May: 25

The month with the most cloud cover is December (Cloud cover 44).
The month with the least cloud cover is October (Cloud cover 24).

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Average visibility in May
Chalmette, LA

Average visibility in May - Chalmette, 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).

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Chalmette, Louisiana, USA

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