May weather forecast
Istrouma, LA

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Weather in May

May, the last month of the spring in Istrouma, is another warm month, with an average temperature varying between 65.7°F (18.7°C) and 85.6°F (29.8°C).

Temperature

May's arrival signals a subtle increase in average high-temperatures, moving from April's moderately hot 78.4°F (25.8°C) to a still warm 85.6°F (29.8°C). In the month of May, Istrouma witnesses a consistent average low-temperature of 65.7°F (18.7°C).

Heat index

May's average heat index is computed to be a torrid 96.8°F (36°C). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

The average relative humidity in May is 76%.

Rainfall

In Istrouma, during May, the rain falls for 14.7 days and regularly aggregates up to 2.83" (72mm) of precipitation. Throughout the year, in Istrouma, there are 177.1 rainfall days, and 36.1" (917mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Istrouma, Louisiana, the average length of the day in May is 13h and 42min.
On the first day of the month, sunrise is at 6:20 am and sunset at 7:43 pm. On the last day of May, sunrise is at 6:02 am and sunset at 8:02 pm CDT.

Sunshine

In Istrouma, the average sunshine in May is 9.7h.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index in Istrouma. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index, 7 in May, converts into the following recommendations:
Shield from overexposure. Defense against sun-related harm is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
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Frequently asked questions

Is it hot in Istrouma during May?

In May, the average high-temperature and low-temperature are 85.6°F (29.8°C) and 65.7°F (18.7°C) respectively. The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in May is computed to be 96.8°F (36°C).

What is the average humidity in May in Istrouma?

In Istrouma, Louisiana, the average relative humidity in May is 76%.

How much does it rain in Istrouma in May?

In Istrouma, in May, during 14.7 rainfall days, 2.83" (72mm) of precipitation is typically accumulated.

When it does not snow in Istrouma?

February through November are months without snowfall in Istrouma, Louisiana.

How many hours of daylight does Istrouma have in May?

In May, the average day length in Istrouma is 13h and 42min.

When is the sunrise / sunset in May in Istrouma?

On the first day of May, sunrise is at 6:20 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 8:02 pm CDT.

How long on average sun shines in May in Istrouma?

In May, the average sunshine duration is 9.7h.

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

May through August, with an average maximum UV index of 7, are months with the highest UV index in Istrouma, Louisiana.

How high is the UV index in May in Istrouma?

In May, the average daily maximum UV index in Istrouma is 7. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to UV radiation.
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
Istrouma, LA

Average temperature in May - Istrouma, LA
  • Average high temperature in May: 85.6°F

The warmest months (with the highest average high temperature) are July and August (91.9°F).
The month with the lowest average high temperature is January (58.6°F).

  • Average low temperature in May: 65.7°F

The month with the highest average low temperature is August (73.9°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).

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Average pressure in May
Istrouma, LA

Average pressure in May - Istrouma, LA
  • Average pressure in May: 29.98"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
Istrouma, LA

Average wind speed in May - Istrouma, LA
  • Average wind speed in May: 5.3mph

The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.4mph).

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Average humidity in May
Istrouma, LA

Average humidity in May - Istrouma, LA
  • Average humidity in May: 76%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in May
Istrouma, LA

Average rainfall in May - Istrouma, LA
  • Average rainfall in May: 2.83"

The wettest month (with the highest rainfall) is July (4.72").
The driest month (with the least rainfall) is November (1.77").

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Average rainfall days in May
Istrouma, LA

Average rainfall days in May - Istrouma, LA
  • Average rainfall days in May: 14.7 days

The month with the highest number of rainy days is July (22.5 days).
The month with the least rainy days is November (8.8 days).

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Average snowfall in May
Istrouma, LA

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

The month with the highest snowfall is January (0.28").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in May
Istrouma, LA

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

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

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

Average daylight in May / Average sunshine in May - Istrouma, 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 4min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

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Average sunshine days in May
Istrouma, LA

Average sunshine days in May - Istrouma, LA
  • Average sunshine days in May: 14.8 days

The month with the most sunshine days is November (19.6 days).
The months with the least sunshine days are July and August (7.3 days).

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Average UV index in May
Istrouma, LA

Average UV index in May - Istrouma, LA
  • Average UV index in May: 7

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

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Average cloud cover in May
Istrouma, LA

Average cloud cover in May - Istrouma, LA
  • Average cloud cover in May: 37

The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 29).

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Average visibility in May
Istrouma, LA

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

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

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Istrouma, Louisiana, USA

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