January weather forecast
McAllen, TX

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Weather in January

As the calendar flips to a new year, the month of January in McAllen, Texas experiences a dip in temperature compared to December and February. The month is noticed for its marginally cooler climate, offering an escape from intense heat for inhabitants and visitors. Sunshine hours drop to 6.8 hours a day. However, January is drier with respect to rainfall, recording an average of 0.59" (15mm), the lowest in the year. The relatively dry conditions of January make it an excellent period for outdoor activities in McAllen, Texas.

Temperature

With an average high-temperature of 69.8°F (21°C) and an average low-temperature of 53.2°F (11.8°C), January is the coldest month.

Humidity

In January, the average relative humidity is 65%.

Rainfall

In McAllen, in January, during 7.5 rainfall days, 0.59" (15mm) of precipitation is typically accumulated. Throughout the year, there are 103.3 rainfall days, and 12.72" (323mm) of precipitation is accumulated.

Snowfall

January is the only month when snow falls. January is the month with the most snowfall. Snow falls for 0.1 days and accumulates 0.12" (3mm) of snow.

Daylight

The average length of the day in January is 10h and 43min.
On the first day of January, sunrise is at 7:20 am and sunset at 5:52 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 6:14 pm CST.

Sunshine

In McAllen, the average sunshine in January is 6.8h.

UV index

In January, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 5 during January translates into these guidelines:
Make use of precautions - It is urged to ward off sun damage. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.

Frequently asked questions

What month is the coldest?

McAllen's coldest weather arrives in January, when temperatures average a high of 69.8°F (21°C) and a low of 53.2°F (11.8°C).

What is the usual temperature for McAllen in January?

The average high-temperature and low-temperature during January are 69.8°F (21°C) and 53.2°F (11.8°C) respectively.

What is the average humidity in January in McAllen?

The average relative humidity in January is 65%.

How much does it rain in January?

In McAllen, during January, the rain falls for 7.5 days and regularly aggregates up to 0.59" (15mm) of precipitation.

What is the snowiest month in McAllen?

January is the month with the most snowfall in McAllen. Snow falls for 0.1 days and accumulates 0.12" (3mm) of snow.

When does it start to snow?

January is the first month it typically snows. Throughout January, in the average 0.1 snowfall days, it receives 0.12" (3mm) of snow.

How many hours of daylight does McAllen have in January?

In McAllen, the average day length in January is 10h and 43min.

What time are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:20 am and sunset at 5:52 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 6:14 pm CST.

How long on average sun shines in January?

In McAllen, the average sunshine duration in January is 6.8h.

What is the UV index intensity in January in McAllen?

In January, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability 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 January
McAllen, TX

Average temperature in January - McAllen, TX
  • Average high temperature in January: 69.8°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 January: 53.2°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).

Average pressure in January
McAllen, TX

Average pressure in January - McAllen, TX
  • Average pressure in January: 30.12"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).

Average wind speed in January
McAllen, TX

Average wind speed in January - McAllen, TX
  • Average wind speed in January: 9.5mph

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).

Average humidity in January
McAllen, TX

Average humidity in January - McAllen, TX
  • Average humidity in January: 65%

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

Average rainfall in January
McAllen, TX

Average rainfall in January - McAllen, TX
  • Average rainfall in January: 0.59"

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

Average rainfall days in January
McAllen, TX

Average rainfall days in January - McAllen, TX
  • Average rainfall days in January: 7.5 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).

Average snowfall in January
McAllen, TX

Average snowfall in January - McAllen, TX
  • Average snowfall in January: 0.12"

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 January
McAllen, TX

Average snowfall days in January - McAllen, TX
  • Average snowfall days in January: 0.1 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).

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

Average daylight in January / Average sunshine in January - McAllen, TX
  • Average daylight in January: 10h and 4min

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 January: 6h 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).

Average sunshine days in January
McAllen, TX

Average sunshine days in January - McAllen, TX
  • Average sunshine days in January: 21.3 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).

Average UV index in January
McAllen, TX

Average UV index in January - McAllen, TX
  • Average UV index in January: 5

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).

Average cloud cover in January
McAllen, TX

Average cloud cover in January - McAllen, TX
  • Average cloud cover in January: 37

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

Average visibility in January
McAllen, TX

Average visibility in January - McAllen, TX
  • Average visibility in January: 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).

McAllen, Texas, USA

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