May weather forecast
Alto, LA

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Weather in May

The last month of the spring, May, is also a moderately hot month in Alto, Louisiana, with an average temperature varying between 82.9°F (28.3°C) and 64.9°F (18.3°C).

Temperature

In Alto, the onset of May comes with a modest high-temperature shift, transitioning from April's warm 74.8°F (23.8°C) to a still moderately hot 82.9°F (28.3°C). Alto encounters a steady low-temperature average of 64.9°F (18.3°C) throughout the month of May.

Heat index

The average heat index in May is estimated at a tropical 89.6°F (32°C). If one endures exposure and continues to be active, it might result in tiredness and heat cramps.
Heat index data is primarily for areas with shade and subjected to light winds. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'real feel' or 'feels like', is a composite of temperature and humidity figures to convey how warm it feels. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.

Humidity

In Alto, the average relative humidity in May is 75%.

Rainfall

In Alto, in May, during 14.6 rainfall days, 2.87" (73mm) of precipitation is typically accumulated. Throughout the year, there are 156.1 rainfall days, and 36.1" (917mm) of precipitation is accumulated.

Snowfall

In Alto, snow does not fall in April through December.

Daylight

In Alto, Louisiana, the average length of the day in May is 13h and 50min.
On the first day of the month, sunrise is at 6:20 am and sunset at 7:48 pm. On the last day of May, sunrise is at 6:01 am and sunset at 8:09 pm CDT.

Sunshine

The average sunshine in May is 9.6h.

UV index

In Alto, the average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.
Note: The daily maximum UV index of 6 in May interprets into the following advice:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.

Frequently asked questions

Is it hot during May?

An average high-temperature, in May, in Alto, is 82.9°F (28.3°C) and the average low-temperature is 64.9°F (18.3°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in May is estimated at 89.6°F (32°C).

What is the average humidity in May?

The average relative humidity in May is 75%.

How many days does it rain in May?

In Alto, in May, during 14.6 rainfall days, 2.87" (73mm) of precipitation is typically accumulated.

When it does not snow?

April through December are months without snowfall.

What is the average length of the day in May?

The average day length in May is 13h and 50min.

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:20 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 8:09 pm CDT.

How long on average sun shines in May?

In Alto, the average sunshine duration in May is 9.6h.

How high is the UV index in May?

In May, the average daily maximum UV index in Alto is 6. A UV Index value of 6 to 7 symbolizes a high health threat 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
Alto, LA

Average temperature in May - Alto, LA
  • Average high temperature in May: 82.9°F

The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (53.6°F).

  • Average low temperature in May: 64.9°F

The month with the highest average low temperature is July (73.6°F).
The coldest month (with the lowest average low temperature) is January (39.6°F).

Average pressure in May
Alto, LA

Average pressure in May - Alto, 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 (29.95"Hg).

Average wind speed in May
Alto, LA

Average wind speed in May - Alto, LA
  • Average wind speed in May: 7mph

The windiest month (with the highest average wind speed) is February (8.5mph).
The calmest months (with the lowest average wind speed) are August and September (5.5mph).

Average humidity in May
Alto, LA

Average humidity in May - Alto, LA
  • Average humidity in May: 75%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (68%).

Average rainfall in May
Alto, LA

Average rainfall in May - Alto, LA
  • Average rainfall in May: 2.87"

The wettest month (with the highest rainfall) is April (4.06").
The driest month (with the least rainfall) is September (1.69").

Average rainfall days in May
Alto, LA

Average rainfall days in May - Alto, LA
  • Average rainfall days in May: 14.6 days

The month with the highest number of rainy days is July (15.6 days).
The month with the least rainy days is November (9.3 days).

Average snowfall in May
Alto, LA

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

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

Average snowfall days in May
Alto, LA

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

The month with the highest number of snowfall days is February (0.7 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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

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

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in May
Alto, LA

Average sunshine days in May - Alto, LA
  • Average sunshine days in May: 14.6 days

The month with the most sunshine days is October (20.2 days).
The month with the least sunshine days is July (12.8 days).

Average UV index in May
Alto, LA

Average UV index in May - Alto, 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
Alto, LA

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

The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are June and October (Cloud cover 27).

Average visibility in May
Alto, LA

Average visibility in May - Alto, 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).

Alto, Louisiana, USA

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