September weather forecast
Topsey, TX

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Weather in September

September, the first month of the autumn in Topsey, is still a tropical month, with an average temperature ranging between min 70.7°F (21.5°C) and max 87.6°F (30.9°C).

Temperature

With the onset of September, the average high-temperature subtly recedes from August's fiery hot 95.5°F (35.3°C) to a hot 87.6°F (30.9°C). Throughout the month of September, the nighttime temperature dips to an average of 70.7°F (21.5°C).

Heat index

The heat index value for September is calculated to be a fiery hot 96.8°F (36°C). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', arises from combining readings of air temperature and relative moisture content. 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. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are primarily vital for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

In September, the average relative humidity is 65%.

Rainfall

In Topsey, in September, it is raining for 14.5 days, with typically 2.64" (67mm) of accumulated precipitation. Throughout the year, there are 131.9 rainfall days, and 25.75" (654mm) of precipitation is accumulated.

Snowfall

March through December are months without snowfall.

Daylight

The average length of the day in September in Topsey is 12h and 20min.
On the first day of September, sunrise is at 7:08 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:17 pm CDT.

Sunshine

The average sunshine in September is 8.5h.

UV index

In September, the average daily maximum UV index in Topsey is 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum daily UV index of 6 during September morphs into the following directions:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
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Frequently asked questions

Is it hot in Topsey during September?

The average high-temperature, in September, in Topsey, is 87.6°F (30.9°C), while the average low-temperature is 70.7°F (21.5°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, is calculated to be 96.8°F (36°C).

What is the average humidity in September in Topsey?

In Topsey, Texas, the average relative humidity in September is 65%.

How many days does it rain in September in Topsey?

In Topsey, during September, the rain falls for 14.5 days and regularly aggregates up to 2.64" (67mm) of precipitation.

When it does not snow in Topsey?

March through December are months without snowfall in Topsey.

How many hours of daylight does Topsey have in September?

In Topsey, Texas, the average day length in September is 12h and 20min.

What time are sunrise and sunset in September in Topsey?

On the first day of September in Topsey, sunrise is at 7:08 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:17 pm CDT.

How many hours of sunshine does Topsey have in September?

The average sunshine duration in September is 8.5h.

How high is the UV index in September in Topsey?

In Topsey, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents 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
Topsey, TX

Average temperature in September - Topsey, TX
  • Average high temperature in September: 87.6°F

The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (57.7°F).

  • Average low temperature in September: 70.7°F

The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (41°F).

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Average pressure in September
Topsey, TX

Average pressure in September - Topsey, TX
  • Average pressure in September: 29.96"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in September
Topsey, TX

Average wind speed in September - Topsey, TX
  • Average wind speed in September: 7.1mph

The windiest month (with the highest average wind speed) is March (10.7mph).
The calmest month (with the lowest average wind speed) is September (7.1mph).

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Average humidity in September
Topsey, TX

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

The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is August (56%).

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Average rainfall in September
Topsey, TX

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

The wettest month (with the highest rainfall) is October (3.98").
The driest month (with the least rainfall) is November (1.18").

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Average rainfall days in September
Topsey, TX

Average rainfall days in September - Topsey, TX
  • Average rainfall days in September: 14.5 days

The month with the highest number of rainy days is September (14.5 days).
The month with the least rainy days is January (7.2 days).

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Average snowfall in September
Topsey, TX

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

The month with the highest snowfall is February (0.28").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in September
Topsey, TX

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

The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).

  • Average sunshine in September: 8h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days in September
Topsey, TX

Average sunshine days in September - Topsey, TX
  • Average sunshine days in September: 13.6 days

The month with the most sunshine days is January (22.7 days).
The month with the least sunshine days is September (13.6 days).

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Average UV index in September
Topsey, TX

Average UV index in September - Topsey, TX
  • Average UV index in September: 6

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in September
Topsey, TX

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

The months with the most cloud cover are March and May (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 21).

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Average visibility in September
Topsey, TX

Average visibility in September - Topsey, 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).

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Topsey, Texas, USA

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