October weather forecast
Harlingen, TX

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Weather in October

October, the same as September, is a moderately hot autumn month in Harlingen, Texas, with an average temperature ranging between max 85.1°F (29.5°C) and min 71.8°F (22.1°C).

Temperature

With October's onset, the weather reveals a slight temperature decrease, transitioning from a hot 90.5°F (32.5°C) in September to a warm 85.1°F (29.5°C). Harlingen, during the month of October, experiences an average low-temperature of 71.8°F (22.1°C).

Heat index

The heat index value during October is calculated to be a hot 91.4°F (33°C). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.

Humidity

In Harlingen, the average relative humidity in October is 68%.

Rainfall

In Harlingen, during October, the rain falls for 7.5 days and regularly aggregates up to 0.79" (20mm) of precipitation. In Harlingen, during the entire year, the rain falls for 79.8 days and collects up to 5.24" (133mm) of precipitation.

Snowfall

January, March through December are months without snowfall.

Daylight

The average length of the day in October in Harlingen is 11h and 32min.
On the first day of October, sunrise is at 7:23 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 6:49 pm CDT.

Sunshine

In Harlingen, the average sunshine in October is 7.6h.

UV index

The average daily maximum UV index in October is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: An average UV index of 6 in October transforms into this advice:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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Frequently asked questions

How hot is it in Harlingen in October?

The high-temperature, in October, in Harlingen, records 85.1°F (29.5°C), while the low-temperature is 71.8°F (22.1°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, in October is calculated to be 91.4°F (33°C).

What is the average humidity in October in Harlingen?

In Harlingen, Texas, the average relative humidity in October is 68%.

How much does it rain in Harlingen in October?

In October, the rain falls for 7.5 days. Throughout October, 0.79" (20mm) of precipitation is accumulated.

When it does not snow in Harlingen?

January, March through December are months without snowfall.

What is the average length of the day in October in Harlingen?

In Harlingen, the average day length in October is 11h and 32min.

When are sunrise and sunset in October in Harlingen?

In October, on the first day of the month, sunrise is at 7:23 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 6:49 pm CDT.

How many hours of sunshine does Harlingen have in October?

The average sunshine duration in October in Harlingen is 7.6h.

How high is the UV index in October in Harlingen?

In October, the average daily maximum UV index in Harlingen is 6. A UV Index reading of 6 to 7 represents a high health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Harlingen, TX

Average temperature in October - Harlingen, TX
  • Average high temperature in October: 85.1°F

The warmest month (with the highest average high temperature) is August (95°F).
The month with the lowest average high temperature is January (68.7°F).

  • Average low temperature in October: 71.8°F

The month with the highest average low temperature is August (80.1°F).
The coldest month (with the lowest average low temperature) is January (55.4°F).

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Average pressure in October
Harlingen, TX

Average pressure in October - Harlingen, TX
  • Average pressure in October: 29.96"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in October
Harlingen, TX

Average wind speed in October - Harlingen, TX
  • Average wind speed in October: 9.6mph

The windiest months (with the highest average wind speed) are March and April (12.1mph).
The calmest month (with the lowest average wind speed) is September (8.9mph).

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Average humidity in October
Harlingen, TX

Average humidity in October - Harlingen, TX
  • Average humidity in October: 68%

The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (65%).

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Average rainfall in October
Harlingen, TX

Average rainfall in October - Harlingen, TX
  • Average rainfall in October: 0.79"

The wettest month (with the highest rainfall) is July (0.87").
The driest month (with the least rainfall) is February (0.16").

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Average rainfall days in October
Harlingen, TX

Average rainfall days in October - Harlingen, TX
  • Average rainfall days in October: 7.5 days

The month with the highest number of rainy days is September (11.5 days).
The month with the least rainy days is February (4.7 days).

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Average snowfall days in October
Harlingen, TX

Average snowfall days in October - Harlingen, TX
  • Average snowfall days in October: 0 days

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

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Average daylight in October /
Average sunshine in October
Harlingen, TX

Average daylight in October / Average sunshine in October - Harlingen, TX
  • Average daylight in October: 11h and 3min

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 October: 7h and 4min

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 6min).

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Average sunshine days in October
Harlingen, TX

Average sunshine days in October - Harlingen, TX
  • Average sunshine days in October: 21.4 days

The month with the most sunshine days is March (23.3 days).
The month with the least sunshine days is September (15.6 days).

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Average UV index in October
Harlingen, TX

Average UV index in October - Harlingen, TX
  • Average UV index in October: 6

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

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Average cloud cover in October
Harlingen, TX

Average cloud cover in October - Harlingen, TX
  • Average cloud cover in October: 27

The month with the most cloud cover is December (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 18).

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Average visibility in October
Harlingen, TX

Average visibility in October - Harlingen, TX
  • Average visibility in October: 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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Harlingen, Texas, USA

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