September weather forecast
Gregory, TX

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Weather in September

September, the first month of the autumn in Gregory, is still a tropical month, with an average temperature varying between 87.3°F (30.7°C) and 78.1°F (25.6°C).

Temperature

Gregory marks the start of September with an average high-temperature of a still tropical 87.3°F (30.7°C), hinting at a slight fluctuation from August's 90.9°F (32.7°C). Gregory, in September, observes a steady average low-temperature of 78.1°F (25.6°C).

Heat index

In September, the average heat index is appraised at a torrid 98.6°F (37°C). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Know that the heat index computations account for shaded terrains and slight winds. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

In September, the average relative humidity is 72%.

Rainfall

September is the month with the most rainfall. Rain falls for 17.9 days and accumulates 2.64" (67mm) of precipitation.

Snowfall

In Gregory, Texas, snow does not fall in January, March through November.

Daylight

In Gregory, the average length of the day in September is 12h and 19min.
On the first day of September, sunrise is at 7:08 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 7:15 pm CDT.

Sunshine

In Gregory, the average sunshine in September is 8.6h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: In September, the maximum UV index of 7 suggests this advice:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Updated: Aug 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during September?

September temperatures vary between a high-temperature of 87.3°F (30.7°C) and a low-temperature of 78.1°F (25.6°C). The average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, in September is appraised at 98.6°F (37°C).

What is the average humidity in September?

The average relative humidity in September is 72%.

What is the wettest month?

September is the month with the most rainfall. Rain falls for 17.9 days and accumulates 2.64" (67mm) of precipitation.

How many days does it rain in September?

In September, the rain falls for 17.9 days. Throughout September, 2.64" (67mm) of precipitation is accumulated.

When it does not snow?

In Gregory, snow does not fall in January, March through November.

What is the average length of the day in September?

The average day length in September is 12h and 19min.

When are sunrise and sunset in September?

On the first day of September in Gregory, sunrise is at 7:08 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 7:15 pm CDT.

How long on average sun shines in September?

The average sunshine duration in September is 8.6h.

What are the months with the highest UV index?

May through September, with an average maximum UV index of 7, are months with the highest UV index.

How high is the UV index in September in Gregory?

The average daily maximum UV index in September is 7. A UV Index estimate of 6 to 7 represents a high health risk 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
Gregory, TX

Average temperature in September - Gregory, TX
  • Average high temperature in September: 87.3°F

The warmest month (with the highest average high temperature) is August (90.9°F).
The month with the lowest average high temperature is January (63.7°F).

  • Average low temperature in September: 78.1°F

The month with the highest average low temperature is August (80.8°F).
The coldest month (with the lowest average low temperature) is January (52.3°F).

Average pressure in September
Gregory, TX

Average pressure in September - Gregory, TX
  • Average pressure in September: 29.92"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are May and June (29.89"Hg).

Average wind speed in September
Gregory, TX

Average wind speed in September - Gregory, TX
  • Average wind speed in September: 9.6mph

The windiest month (with the highest average wind speed) is May (12.6mph).
The calmest month (with the lowest average wind speed) is September (9.6mph).

Average humidity in September
Gregory, TX

Average humidity in September - Gregory, TX
  • Average humidity in September: 72%

The months with the highest relative humidity are March and May (78%).
The months with the lowest relative humidity are August and October (71%).

Average rainfall in September
Gregory, TX

Average rainfall in September - Gregory, TX
  • Average rainfall in September: 2.64"

The wettest month (with the highest rainfall) is September (2.64").
The driest month (with the least rainfall) is February (0.51").

Average rainfall days in September
Gregory, TX

Average rainfall days in September - Gregory, TX
  • Average rainfall days in September: 17.9 days

The month with the highest number of rainy days is September (17.9 days).
The month with the least rainy days is February (7.7 days).

Average snowfall in September
Gregory, TX

Average snowfall in September - Gregory, TX
  • Average snowfall in September: 0"

The months with the highest snowfall are February and December (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Gregory, TX

Average snowfall days in September - Gregory, TX
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (0.2 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).

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

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

The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

Average sunshine days in September
Gregory, TX

Average sunshine days in September - Gregory, TX
  • Average sunshine days in September: 10.4 days

The month with the most sunshine days is January (20.1 days).
The month with the least sunshine days is September (10.4 days).

Average UV index in September
Gregory, TX

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

The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January and December (UV index 4).

Average cloud cover in September
Gregory, TX

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

The months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 20).

Average visibility in September
Gregory, TX

Average visibility in September - Gregory, 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).

Gregory, Texas, USA

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