Monthly weather forecast and climate
Harlingen, TX

January is the coldest month, with an average high-temperature of 70.7°F (21.5°C) and an average low-temperature of 48.7°F (9.3°C). January is the month with the least rainfall, with 1.1" (26.9mm) of accumulated precipitation.
Weather in January »
The average high-temperature, is 73.9°F (23.3°C), while the average low-temperature is 52.5°F (11.4°C). During February, Harlingen regularly aggregates up to 1.4" (35.8mm) of precipitation.
Weather in February »
In Harlingen, the average high-temperature is 80.1°F (26.7°C), and the average low-temperature is 57.2°F (14°C). In Harlingen, in March, 1.3" (32.8mm) of precipitation is typically accumulated.
Weather in March »
In Harlingen, in April, the average high-temperature is 85.8°F (29.9°C), and the average low-temperature is 64.9°F (18.3°C). In Harlingen, Texas, 1.7" (42.4mm) of precipitation is typically accumulated.
Weather in April »
In Harlingen, the average high-temperature is 90.5°F (32.5°C), and the average low-temperature is 70.9°F (21.6°C). Throughout May, 2.5" (63.2mm) of precipitation is accumulated.
Weather in May »
The average high-temperature, in June, is 93.7°F (34.3°C), while the average low-temperature is 74.1°F (23.4°C). Throughout June, 2.5" (63.5mm) of precipitation is accumulated.
Weather in June »
In Harlingen, Texas, the average high-temperature is 95.2°F (35.1°C), and the average low-temperature is 75°F (23.9°C). During July, Harlingen regularly aggregates up to 1.9" (49mm) of precipitation.
Weather in July »
The warmest month is August, with an average high-temperature of 95.9°F (35.5°C) and an average low-temperature of 74.8°F (23.8°C). During August, Harlingen regularly aggregates up to 1.9" (47.2mm) of precipitation.
Weather in August »
In Harlingen, Texas, in September, the average high-temperature is 91.2°F (32.9°C), and the average low-temperature is 72.3°F (22.4°C). The month with the most rainfall is September when 5.2" (132.6mm) of precipitation is typically aggregated.
Weather in September »
In Harlingen, in October, the average high-temperature is 86.7°F (30.4°C), and the average low-temperature is 65.5°F (18.6°C). Throughout October, 3" (75.9mm) of precipitation is accumulated.
Weather in October »
In November, in Harlingen, the average high-temperature is 79.5°F (26.4°C), and the average low-temperature is 57°F (13.9°C). During November, Harlingen regularly aggregates up to 1.5" (38.1mm) of precipitation.
Weather in November »
In Harlingen, the average high-temperature is 71.4°F (21.9°C), and the average low-temperature is 49.3°F (9.6°C). Throughout December, 1.3" (32mm) of precipitation is accumulated.
Weather in December »

What is the coldest month in Harlingen?

The coldest month in Harlingen is January, with an average high-temperature of 70.7°F (21.5°C) and an average low-temperature of 48.7°F (9.3°C).

How much does it rain in Harlingen?

Throughout the year, in Harlingen, 25.2" (639.4mm) of rain is accumulated.

What is the driest month in Harlingen?

January is the month with the least rainfall, with 1.1" (26.9mm) of accumulated precipitation.

When are the longest days in Harlingen?

With an average of 13.8h of daylight, June has the longest days of the year in Harlingen.

What is the warmest month in Harlingen?

The warmest month in Harlingen is August, with an average high-temperature of 95.9°F (35.5°C) and an average low-temperature of 74.8°F (23.8°C).

What is the wettest month in Harlingen?

The month with the most rainfall is September when 5.2" (132.6mm) of precipitation is typically aggregated.

What is the month with the shortest days in Harlingen?

December has the shortest days of the year in Harlingen, with an average of 10.5h of daylight.
Average temperature - Harlingen, TX
Average rainfall - Harlingen, TX
Average daylight - Harlingen, TX

The month with the longest days is June (Average daylight: 13.8h).
The month with shortest days is December (Average daylight: 10.5h).

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