September weather forecast
Pharr, TX

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Weather in September

The first month of the autumn, September, is still a tropical month in Pharr, Texas, with an average temperature fluctuating between 77.2°F (25.1°C) and 92.5°F (33.6°C).

Temperature

Pharr's transition into September involves a gentle shift in temperature, receding from a sweltering 98.2°F (36.8°C) in August to a hot 92.5°F (33.6°C). Throughout September nights, Pharr experiences a consistent temperature average of 77.2°F (25.1°C).

Heat index

In September, the average heat index is calculated to be a blisteringly hot 109.4°F (43°C). Stay on guard: Heat exhaustion and heat cramps are predicted. Ongoing effort can cause heatstroke.
Remember that heat index calculations are made for conditions in the shade with light wind. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'feels like', measures the perceived warmth when incorporating the humidity present in the air. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In September, the average relative humidity is 65%.

Rainfall

The month with the most rainfall in Pharr is September, when the rain falls for 15.1 days and typically aggregates up to 1.46" (37mm) of precipitation.

Snowfall

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

Daylight

In Pharr, the average length of the day in September is 12h and 18min.
On the first day of the month, sunrise is at 7:13 am and sunset at 7:51 pm. On the last day of September, sunrise is at 7:24 am and sunset at 7:19 pm CDT.

Sunshine

In Pharr, Texas, the average sunshine in September is 8.6h.

UV index

In September, the average daily maximum UV index in Pharr is 7. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In September, the maximum UV index of 7 suggests these recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in Pharr in September?

Pharr in September has an average high-temperature of 92.5°F (33.6°C) and an average low-temperature of 77.2°F (25.1°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in September is calculated to be 109.4°F (43°C).

What is the average humidity in September in Pharr?

The average relative humidity in September is 65%.

What is the rainiest month in Pharr?

September is the month with the most rainfall in Pharr, Texas. Rain falls for 15.1 days and accumulates 1.46" (37mm) of precipitation.

How much does it rain in Pharr in September?

In Pharr, Texas, during September, the rain falls for 15.1 days and regularly aggregates up to 1.46" (37mm) of precipitation.

When it does not snow in Pharr?

February through December are months without snowfall in Pharr.

What is the average length of the day in September in Pharr?

In September, the average day length in Pharr, Texas, is 12h and 18min.

What time are sunrise and sunset in September in Pharr?

On the first day of September in Pharr, sunrise is at 7:13 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:19 pm CDT.

How many hours of sunshine does Pharr have in September?

In Pharr, the average sunshine duration in September is 8.6h.

What is the UV index reading in September in Pharr?

In Pharr, the average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high hazard to health from unsafe 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 September
Pharr, TX

Average temperature in September - Pharr, TX
  • Average high temperature in September: 92.5°F

The warmest month (with the highest average high temperature) is August (98.2°F).
The month with the lowest average high temperature is January (69.6°F).

  • Average low temperature in September: 77.2°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 (53.4°F).

Average pressure in September
Pharr, TX

Average pressure in September - Pharr, TX
  • Average pressure in September: 29.91"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 September
Pharr, TX

Average wind speed in September - Pharr, TX
  • Average wind speed in September: 8.9mph

The windiest month (with the highest average wind speed) is May (12.4mph).
The calmest month (with the lowest average wind speed) is September (8.9mph).

Average humidity in September
Pharr, TX

Average humidity in September - Pharr, TX
  • Average humidity in September: 65%

The month with the highest relative humidity is May (69%).
The month with the lowest relative humidity is August (59%).

Average rainfall in September
Pharr, TX

Average rainfall in September - Pharr, TX
  • Average rainfall in September: 1.46"

The wettest month (with the highest rainfall) is September (1.46").
The driest months (with the least rainfall) are January and February (0.31").

Average rainfall days in September
Pharr, TX

Average rainfall days in September - Pharr, TX
  • Average rainfall days in September: 15.1 days

The month with the highest number of rainy days is September (15.1 days).
The month with the least rainy days is February (5.4 days).

Average snowfall in September
Pharr, TX

Average snowfall in September - Pharr, TX
  • Average snowfall in September: 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 September
Pharr, TX

Average snowfall days in September - Pharr, TX
  • Average snowfall days in September: 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).

Average daylight in September /
Average sunshine in September
Pharr, TX

Average daylight in September / Average sunshine in September - Pharr, TX
  • Average daylight in September: 12h and 2min

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 September: 8h 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 30min).

Average sunshine days in September
Pharr, TX

Average sunshine days in September - Pharr, TX
  • Average sunshine days in September: 12.5 days

The month with the most sunshine days is July (23 days).
The month with the least sunshine days is September (12.5 days).

Average UV index in September
Pharr, TX

Average UV index in September - Pharr, TX
  • Average UV index in September: 7

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 September
Pharr, TX

Average cloud cover in September - Pharr, TX
  • Average cloud cover in September: 30

The month with the most cloud cover is December (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 18).

Average visibility in September
Pharr, TX

Average visibility in September - Pharr, TX
  • Average visibility in September: 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).

Pharr, Texas, USA

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