March weather forecast
Mermentau, LA

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Weather in March

March, the first month of the spring in Mermentau, is an agreeable month, with an average temperature fluctuating between 54.3°F (12.4°C) and 70.9°F (21.6°C).

Temperature

As March sets, the average high-temperature shows a slight increase, moving up from a refreshing 64°F (17.8°C) in February to an agreeable 70.9°F (21.6°C). An average low-temperature of 54.3°F (12.4°C) is noted during the nights in March.

Humidity

In March, the average relative humidity is 79%.

Rainfall

In March, the rain falls for 13.1 days. Throughout March, 1.81" (46mm) of precipitation is accumulated. Throughout the year, there are 156.6 rainfall days, and 26.34" (669mm) of precipitation is accumulated.

Snowfall

February through December are months without snowfall.

Daylight

In Mermentau, the average length of the day in March is 12h and 1min.
On the first day of the month, sunrise is at 6:35 am and sunset at 6:09 pm CST. On the last day of March, sunrise is at 6:59 am and sunset at 7:28 pm CDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from CDT to CST.

Sunshine

In March, the average sunshine is 7.3h.

UV index

In Mermentau, the average daily maximum UV index in March is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In March, the average maximum UV index of 5 translates into the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Updated: Jul 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in March?

In March, in Mermentau, the average high-temperature is 70.9°F (21.6°C), and the average low-temperature is 54.3°F (12.4°C).

What is the average humidity in March?

In March, the average relative humidity in Mermentau, Louisiana, is 79%.

How many days does it rain in March?

In Mermentau, Louisiana, during March, the rain falls for 13.1 days and regularly aggregates up to 1.81" (46mm) of precipitation.

When it does not snow?

February through December are months without snowfall.

How many hours of daylight does Mermentau have in March?

In Mermentau, the average day length in March is 12h and 1min.

When are sunrise and sunset in March?

On the first day of March, sunrise is at 6:35 am and sunset at 6:09 pm CST. On the last day of the month, sunrise is at 6:59 am and sunset at 7:28 pm CDT.

When does Daylight Saving Time (DST) start in March in Mermentau?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. DST ends Sunday, November 3. 2024, at 2:00 am.

How many hours of sunshine does Mermentau have in March?

In Mermentau, the average sunshine duration in March is 7.3h.

What is the UV index reading in March?

The average daily maximum UV index in March is 5. A UV Index reading of 3 to 5 represents a medium hazard to health 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 March
Mermentau, LA

Average temperature in March - Mermentau, LA
  • Average high temperature in March: 70.9°F

The warmest month (with the highest average high temperature) is August (90°F).
The month with the lowest average high temperature is January (59°F).

  • Average low temperature in March: 54.3°F

The months with the highest average low temperature are July and August (75.2°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).

Average pressure in March
Mermentau, LA

Average pressure in March - Mermentau, LA
  • Average pressure in March: 30.06"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in March
Mermentau, LA

Average wind speed in March - Mermentau, LA
  • Average wind speed in March: 8.8mph

The windiest month (with the highest average wind speed) is February (9.2mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity in March
Mermentau, LA

Average humidity in March - Mermentau, LA
  • Average humidity in March: 79%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (72%).

Average rainfall in March
Mermentau, LA

Average rainfall in March - Mermentau, LA
  • Average rainfall in March: 1.81"

The wettest month (with the highest rainfall) is August (3.58").
The driest month (with the least rainfall) is February (1.61").

Average rainfall days in March
Mermentau, LA

Average rainfall days in March - Mermentau, LA
  • Average rainfall days in March: 13.1 days

The month with the highest number of rainy days is August (18.6 days).
The month with the least rainy days is November (9.3 days).

Average snowfall in March
Mermentau, LA

Average snowfall in March - Mermentau, LA
  • Average snowfall in March: 0"

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

Average snowfall days in March
Mermentau, LA

Average snowfall days in March - Mermentau, LA
  • Average snowfall days in March: 0 days

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

Average daylight in March /
Average sunshine in March
Mermentau, LA

Average daylight in March / Average sunshine in March - Mermentau, LA
  • Average daylight in March: 12h and 0min

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 March: 7h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

Average sunshine days in March
Mermentau, LA

Average sunshine days in March - Mermentau, LA
  • Average sunshine days in March: 16.3 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is August (9.9 days).

Average UV index in March
Mermentau, LA

Average UV index in March - Mermentau, LA
  • Average UV index in March: 5

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

Average cloud cover in March
Mermentau, LA

Average cloud cover in March - Mermentau, LA
  • Average cloud cover in March: 42

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 25).

Average visibility in March
Mermentau, LA

Average visibility in March - Mermentau, LA
  • Average visibility in March: 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).

Mermentau, Louisiana, USA

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