May weather forecast
Calvin, LA

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Weather in May

The last month of the spring, May, is another warm month in Calvin, Louisiana, with an average temperature varying between 64°F (17.8°C) and 84.9°F (29.4°C).

Temperature

Observing a slight rise in May, the average high-temperature shifts from April's 76.6°F (24.8°C) to a still warm 84.9°F (29.4°C). Calvin reports an average low-temperature of 64°F (17.8°C) during the nights of May.

Heat index

May's mean heat index is estimated at a sweltering 95°F (35°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is achieved by amalgamating air temperature with the relative humidity readings. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

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

Rainfall

In Calvin, during May, the rain falls for 11.8 days and regularly aggregates up to 1.3" (33mm) of precipitation. Throughout the year, there are 130.3 rainfall days, and 16.42" (417mm) of precipitation is accumulated.

Snowfall

In Calvin, Louisiana, snow does not fall in April through November.

Daylight

In Calvin, the average length of the day in May is 13h and 48min.
On the first day of the month, sunrise is at 6:24 am and sunset at 7:51 pm. On the last day of May, sunrise is at 6:05 am and sunset at 8:11 pm CDT.

Sunshine

The average sunshine in May in Calvin is 9.4h.

UV index

The average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A daily high UV index of 6 in May leads to these guidelines:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in May?

May temperatures vary between a high-temperature of 84.9°F (29.4°C) and a low-temperature of 64°F (17.8°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in May is estimated at 95°F (35°C).

What is the average humidity in May?

In May, the average relative humidity is 75%.

How many days does it rain in May?

In Calvin, Louisiana, in May, it is raining for 11.8 days, with typically 1.3" (33mm) of accumulated precipitation.

When it does not snow?

In Calvin, snow does not fall in April through November.

How many hours of daylight does Calvin have in May?

In May, the average day length is 13h and 48min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:24 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 8:11 pm CDT.

How many hours of sunshine does Calvin have in May?

In May, the average sunshine duration is 9.4h.

How high is the UV index in May?

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

Average temperature in May - Calvin, LA
  • Average high temperature in May: 84.9°F

The warmest month (with the highest average high temperature) is July (94.3°F).
The month with the lowest average high temperature is January (55.2°F).

  • Average low temperature in May: 64°F

The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (39.6°F).

Average pressure in May
Calvin, LA

Average pressure in May - Calvin, LA
  • Average pressure in May: 29.96"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in May
Calvin, LA

Average wind speed in May - Calvin, LA
  • Average wind speed in May: 5.8mph

The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).

Average humidity in May
Calvin, LA

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

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (71%).

Average rainfall in May
Calvin, LA

Average rainfall in May - Calvin, LA
  • Average rainfall in May: 1.3"

The wettest month (with the highest rainfall) is August (1.85").
The driest month (with the least rainfall) is November (0.94").

Average rainfall days in May
Calvin, LA

Average rainfall days in May - Calvin, LA
  • Average rainfall days in May: 11.8 days

The month with the highest number of rainy days is August (14.6 days).
The month with the least rainy days is November (6.6 days).

Average snowfall in May
Calvin, LA

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

The month with the highest snowfall is January (0.12").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in May
Calvin, LA

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

The month with the highest number of snowfall days is January (0.6 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in May / Average sunshine in May - Calvin, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

Average sunshine days in May
Calvin, LA

Average sunshine days in May - Calvin, LA
  • Average sunshine days in May: 16.1 days

The month with the most sunshine days is October (21.7 days).
The month with the least sunshine days is August (13.2 days).

Average UV index in May
Calvin, LA

Average UV index in May - Calvin, 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
Calvin, LA

Average cloud cover in May - Calvin, LA
  • Average cloud cover in May: 38

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is October (Cloud cover 30).

Average visibility in May
Calvin, LA

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

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

Calvin, Louisiana, USA

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