May weather forecast
Hammond, LA

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Weather in May

Consecutive warm months lead to May being one of the warmest months in Hammond with high temperatures reaching up to an impressive 85.1°F (29.5°C). The rise in heat signifies the approaching summer, leading to an increase in outdoor activities. Rainfall continues with fewer days experiencing precipitation compared to April. Longer days and reduced cloud cover provide more sunshine hours, making it a plein-air lover's delight. The primo-vera now gives way to a hotter, sunnier season.

Temperature

With the onset of May, the average high-temperature subtly transitions from a warm 78.4°F (25.8°C) in April to a still moderately hot 85.1°F (29.5°C). In May, Hammond's temperature tends to fall to an average low of 65.8°F (18.8°C) during the night.

Heat index

Throughout May, the heat index is appraised at a very hot 95°F (35°C). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. 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. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

The average relative humidity in May is 76%.

Rainfall

In Hammond, during May, the rain falls for 13 days and regularly aggregates up to 2.32" (59mm) of precipitation. Throughout the year, there are 163.3 rainfall days, and 27.64" (702mm) of precipitation is accumulated.

Snowfall

February through November are months without snowfall.

Daylight

The average length of the day in May is 13h and 43min.
On the first day of May, sunrise is at 6:17 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 7:59 pm CDT.

Sunshine

The average sunshine in May is 9.9h.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In May, a daily UV index of 7 turns into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.

Frequently asked questions

How hot is it in May?

Hammond in May has an average high-temperature of 85.1°F (29.5°C) and an average low-temperature of 65.8°F (18.8°C). In May, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is appraised at 95°F (35°C).

What is the average humidity in May?

In May, the average relative humidity is 76%.

How many days does it rain in May?

In Hammond, during May, the rain falls for 13 days and regularly aggregates up to 2.32" (59mm) of precipitation.

When it does not snow?

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

How many hours of daylight does Hammond have in May?

In May, the average day length in Hammond is 13h and 43min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 6:17 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 7:59 pm CDT.

How long on average sun shines in May?

The average sunshine duration in May is 9.9h.

When is the highest UV index?

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

How high is the UV index in May?

In May, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high health risk 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
Hammond, LA

Average temperature in May - Hammond, LA
  • Average high temperature in May: 85.1°F

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

  • Average low temperature in May: 65.8°F

The month with the highest average low temperature is August (74.5°F).
The coldest month (with the lowest average low temperature) is January (42.8°F).

Average pressure in May
Hammond, LA

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

The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).

Average wind speed in May
Hammond, LA

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

The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is July (4.6mph).

Average humidity in May
Hammond, LA

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

The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is October (73%).

Average rainfall in May
Hammond, LA

Average rainfall in May - Hammond, LA
  • Average rainfall in May: 2.32"

The wettest month (with the highest rainfall) is July (3.9").
The driest month (with the least rainfall) is November (1.14").

Average rainfall days in May
Hammond, LA

Average rainfall days in May - Hammond, LA
  • Average rainfall days in May: 13 days

The month with the highest number of rainy days is August (20.7 days).
The month with the least rainy days is November (7.6 days).

Average snowfall in May
Hammond, LA

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

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

Average snowfall days in May
Hammond, LA

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

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

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

Average daylight in May / Average sunshine in May - Hammond, 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 months with the most sunshine are June and August (Average sunshine: 10h and 24min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).

Average sunshine days in May
Hammond, LA

Average sunshine days in May - Hammond, LA
  • Average sunshine days in May: 15.4 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (7.9 days).

Average UV index in May
Hammond, LA

Average UV index in May - Hammond, 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).

Average cloud cover in May
Hammond, LA

Average cloud cover in May - Hammond, LA
  • Average cloud cover in May: 34

The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 28).

Average visibility in May
Hammond, LA

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

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

Hammond, Louisiana, USA

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