September weather forecast
Hereford, TX

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Weather in September

September, the first month of the autumn in Hereford, is still a warm month, with an average temperature fluctuating between 82°F (27.8°C) and 61°F (16.1°C).

Temperature

Hereford's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's hot 90.3°F (32.4°C) to a moderately hot 82°F (27.8°C). Hereford observes an average nighttime temperature of 61°F (16.1°C) during September.

Heat index

September's mean heat index is evaluated at 84.2°F (29°C). If one stays active during extended exposure, it might induce fatigue and result in heat cramps.
In the scope of the heat index, its values resonate with shade and light wind conditions. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.

Humidity

In Hereford, the average relative humidity in September is 55%.

Rainfall

The wettest months are July and September, with an average 1.81" (46mm) of rainfall.

Snowfall

In Hereford, snow does not fall in May through September.

Daylight

The average length of the day in September in Hereford is 12h and 23min.
On the first day of September in Hereford, sunrise is at 7:23 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 7:34 pm CDT.

Sunshine

In Hereford, the average sunshine in September is 9.2h.

UV index

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily high UV index of 5 in September translates into this advice:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
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Frequently asked questions

What are September temperatures in Hereford?

In Hereford, 82°F (27.8°C) is the average high-temperature and 61°F (16.1°C) is the average low-temperature during September. In September, the average heat index (a.k.a. 'feels like', 'real feel'), which combines air temperature and relative humidity, is evaluated at 84.2°F (29°C).

What is the average humidity in September in Hereford?

In Hereford, the average relative humidity in September is 55%.

What is the rainiest month in Hereford?

The months with the most rainfall in Hereford, Texas, are July and September, with an average 1.81" (46mm) of precipitation.

How many days does it rain in September in Hereford?

In Hereford, Texas, during September, the rain falls for 11.8 days and regularly aggregates up to 1.81" (46mm) of precipitation.

When it does not snow in Hereford?

May through September are months without snowfall in Hereford.

Does it snow in Hereford in September?

In Hereford, Texas, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Hereford have in September?

In September, the average day length in Hereford, Texas, is 12h and 23min.

What time are sunrise and sunset in September in Hereford?

In September, on the first day of the month, sunrise is at 7:23 am and sunset at 8:15 pm. On the last day of the month, in Hereford, sunrise is at 7:44 am and sunset at 7:34 pm CDT.

How long on average sun shines in September in Hereford?

In Hereford, Texas, the average sunshine duration in September is 9.2h.

What is the UV index reading in September in Hereford?

In Hereford, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
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
Hereford, TX

Average temperature in September - Hereford, TX
  • Average high temperature in September: 82°F

The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is December (50.4°F).

  • Average low temperature in September: 61°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is December (30.2°F).

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Average pressure in September
Hereford, TX

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

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed in September
Hereford, TX

Average wind speed in September - Hereford, TX
  • Average wind speed in September: 10.6mph

The windiest month (with the highest average wind speed) is April (13.3mph).
The calmest month (with the lowest average wind speed) is August (9.9mph).

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Average humidity in September
Hereford, TX

Average humidity in September - Hereford, TX
  • Average humidity in September: 55%

The month with the highest relative humidity is December (56%).
The month with the lowest relative humidity is April (39%).

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Average rainfall in September
Hereford, TX

Average rainfall in September - Hereford, TX
  • Average rainfall in September: 1.81"

The wettest months (with the highest rainfall) are July and September (1.81").
The driest month (with the least rainfall) is February (0.35").

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Average rainfall days in September
Hereford, TX

Average rainfall days in September - Hereford, TX
  • Average rainfall days in September: 11.8 days

The month with the highest number of rainy days is July (13.6 days).
The month with the least rainy days is November (3.2 days).

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Average snowfall in September
Hereford, TX

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

The month with the highest snowfall is January (1.65").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Hereford, TX

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

The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).

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Average sunshine days in September
Hereford, TX

Average sunshine days in September - Hereford, TX
  • Average sunshine days in September: 15.6 days

The month with the most sunshine days is November (25.4 days).
The month with the least sunshine days is July (13.3 days).

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Average UV index in September
Hereford, TX

Average UV index in September - Hereford, TX
  • Average UV index in September: 5

The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in September
Hereford, TX

Average cloud cover in September - Hereford, TX
  • Average cloud cover in September: 21

The months with the most cloud cover are February and December (Cloud cover 22).
The month with the least cloud cover is June (Cloud cover 14).

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Average visibility in September
Hereford, TX

Average visibility in September - Hereford, 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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Hereford, Texas, USA

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