March weather forecast
McAllen, TX

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Weather in March

By March, the city of McAllen, Texas starts to warm up, informing of the steady approach of spring. The weather in March is largely predictable with no unexpected extremes of hot or cold. The days in March are noticeably longer, resulting in more sunlight and slightly higher temperatures than the previous months. With an average of 6.3 days of rain and a maximum wind speed of 12.7mph (20.4km/h), this period remains suitable for various outdoor activities. The transition from winter to spring signifies a bloom in the city's flora, adding to its allure for tourists and locals.

Temperature

March brings a slight increase in the average high-temperature, progressing from 75.4°F (24.1°C) in February to a still moderately hot 82°F (27.8°C). McAllen, in the month of March, anticipates a consistent average low-temperature of 63.1°F (17.3°C).

Heat index

The heat index for March is computed to be a tropical 86°F (30°C). Prolonged activity during exposure might result in a state of fatigue and cause heat cramps.
Remember that heat index calculations are made for conditions in the shade with light wind. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial 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.

Humidity

In McAllen, the average relative humidity in March is 64%.

Rainfall

In McAllen, during March, the rain falls for 8.1 days and regularly aggregates up to 0.55" (14mm) of precipitation. In McAllen, during the entire year, the rain falls for 103.3 days and collects up to 12.72" (323mm) of precipitation.

Snowfall

In McAllen, snow does not fall in February through December.

Daylight

The average length of the day in March is 12h and 2min.
On the first day of March in McAllen, sunrise is at 6:55 am and sunset at 6:34 pm CST. On the last day of the month, sunrise is at 7:24 am and sunset at 7:49 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 McAllen, the average sunshine in March is 7.9h.

UV index

In McAllen, the average daily maximum UV index in March is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 6 during March translates into the following guidance:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.
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Frequently asked questions

What is the usual temperature for McAllen in March?

During March, McAllen experiences an average high-temperature of 82°F (27.8°C) and a low-temperature of 63.1°F (17.3°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in March is computed to be 86°F (30°C).

What is the average humidity in March in McAllen?

In March, the average relative humidity in McAllen is 64%.

How much does it rain in McAllen in March?

In March, the rain falls for 8.1 days. Throughout March, 0.55" (14mm) of precipitation is accumulated.

When it does not snow in McAllen?

February through December are months without snowfall in McAllen, Texas.

How many hours of daylight does McAllen have in March?

The average day length in March in McAllen is 12h and 2min.

What time are sunrise and sunset in March in McAllen?

On the first day of March in McAllen, sunrise is at 6:55 am and sunset at 6:34 pm CST. On the last day of the month, sunrise is at 7:24 am and sunset at 7:49 pm CDT.

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

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 McAllen have in March?

The average sunshine duration in March is 7.9h.

What is the UV index intensity in March in McAllen?

The average daily maximum UV index in March in McAllen, Texas, is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's 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
McAllen, TX

Average temperature in March - McAllen, TX
  • Average high temperature in March: 82°F

The warmest month (with the highest average high temperature) is August (98.6°F).
The month with the lowest average high temperature is January (69.8°F).

  • Average low temperature in March: 63.1°F

The month with the highest average low temperature is August (79.7°F).
The coldest month (with the lowest average low temperature) is January (53.2°F).

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Average pressure in March
McAllen, TX

Average pressure in March - McAllen, TX
  • Average pressure in March: 29.98"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are May and June (29.87"Hg).

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Average wind speed in March
McAllen, TX

Average wind speed in March - McAllen, TX
  • Average wind speed in March: 11.9mph

The windiest month (with the highest average wind speed) is May (12.6mph).
The calmest month (with the lowest average wind speed) is September (9.1mph).

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Average humidity in March
McAllen, TX

Average humidity in March - McAllen, TX
  • Average humidity in March: 64%

The month with the highest relative humidity is May (68%).
The month with the lowest relative humidity is August (59%).

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Average rainfall in March
McAllen, TX

Average rainfall in March - McAllen, TX
  • Average rainfall in March: 0.55"

The wettest month (with the highest rainfall) is September (2.13").
The driest month (with the least rainfall) is February (0.47").

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Average rainfall days in March
McAllen, TX

Average rainfall days in March - McAllen, TX
  • Average rainfall days in March: 8.1 days

The month with the highest number of rainy days is September (15.4 days).
The month with the least rainy days is February (6.3 days).

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Average snowfall in March
McAllen, TX

Average snowfall in March - McAllen, TX
  • 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").

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Average snowfall days in March
McAllen, TX

Average snowfall days in March - McAllen, TX
  • Average snowfall days in March: 0 days

The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

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Average daylight in March /
Average sunshine in March
McAllen, TX

Average daylight in March / Average sunshine in March - McAllen, TX
  • Average daylight in March: 12h and 0min

The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).

  • Average sunshine in March: 7h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days in March
McAllen, TX

Average sunshine days in March - McAllen, TX
  • Average sunshine days in March: 20.7 days

The month with the most sunshine days is July (23.5 days).
The month with the least sunshine days is September (12.5 days).

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Average UV index in March
McAllen, TX

Average UV index in March - McAllen, TX
  • Average UV index in March: 6

The months with the highest UV index are July and August (UV index 8).
The month with the lowest UV index is December (UV index 4).

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Average cloud cover in March
McAllen, TX

Average cloud cover in March - McAllen, TX
  • Average cloud cover in March: 35

The month with the most cloud cover is December (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 17).

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Average visibility in March
McAllen, TX

Average visibility in March - McAllen, TX
  • 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).

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McAllen, Texas, USA

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