September weather forecast
Richwood, TX

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Weather in September

September, the first month of the autumn in Richwood, is still a hot month, with an average temperature ranging between max 86.9°F (30.5°C) and min 75°F (23.9°C).

Temperature

The unfolding of September shows an average high-temperature of a still tropical 86.9°F (30.5°C), indicating a slight variance from August's 91°F (32.8°C). September brings Richwood a consistent average low-temperature of 75°F (23.9°C).

Heat index

September's mean heat index is calculated to be a fiery hot 100.4°F (38°C). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

The average relative humidity in September in Richwood, Texas, is 76%.

Rainfall

September is the month with the most rainfall in Richwood. Rain falls for 19.4 days and accumulates 3.98" (101mm) of precipitation.

Snowfall

February through November are months without snowfall in Richwood, Texas.

Daylight

The average length of the day in September is 12h and 19min.
On the first day of September in Richwood, sunrise is at 6:59 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:08 pm CDT.

Sunshine

The average sunshine in September is 8.2h.

UV index

In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 6 during September translates into the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
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Frequently asked questions

Is it hot in Richwood during September?

In September, the average high-temperature and low-temperature are 86.9°F (30.5°C) and 75°F (23.9°C) respectively. In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, is calculated to be 100.4°F (38°C).

What is the average humidity in September in Richwood?

In Richwood, Texas, the average relative humidity in September is 76%.

What is the rainiest month in Richwood?

September is the month with the most rainfall in Richwood, Texas. Rain falls for 19.4 days and accumulates 3.98" (101mm) of precipitation.

How much does it rain in Richwood in September?

In September, in Richwood, the rain falls for 19.4 days. Throughout September, 3.98" (101mm) of precipitation is accumulated.

When it does not snow in Richwood?

February through November are months without snowfall.

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

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

What time are sunrise and sunset in September in Richwood?

In September, on the first day of the month, sunrise is at 6:59 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:08 pm CDT.

How long on average sun shines in September in Richwood?

In September, the average sunshine duration in Richwood, Texas, is 8.2h.

How high is the UV index in September in Richwood?

In September, the average daily maximum UV index in Richwood, Texas, is 6. 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
Richwood, TX

Average temperature in September - Richwood, TX
  • Average high temperature in September: 86.9°F

The warmest month (with the highest average high temperature) is August (91°F).
The month with the lowest average high temperature is January (61.7°F).

  • Average low temperature in September: 75°F

The months with the highest average low temperature are July and August (78.4°F).
The coldest month (with the lowest average low temperature) is January (49.1°F).

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Average pressure in September
Richwood, TX

Average pressure in September - Richwood, TX
  • Average pressure in September: 29.95"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Richwood, TX

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

The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is September (7.1mph).

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Average humidity in September
Richwood, TX

Average humidity in September - Richwood, TX
  • Average humidity in September: 76%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in September
Richwood, TX

Average rainfall in September - Richwood, TX
  • Average rainfall in September: 3.98"

The wettest month (with the highest rainfall) is September (3.98").
The driest month (with the least rainfall) is March (1.34").

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Average rainfall days in September
Richwood, TX

Average rainfall days in September - Richwood, TX
  • Average rainfall days in September: 19.4 days

The month with the highest number of rainy days is September (19.4 days).
The month with the least rainy days is November (11.9 days).

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Average snowfall in September
Richwood, TX

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

The month with the highest snowfall is December (0.08").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Richwood, TX

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

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

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

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

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in September: 8h and 1min

The months with the most sunshine are June and August (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).

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Average sunshine days in September
Richwood, TX

Average sunshine days in September - Richwood, TX
  • Average sunshine days in September: 7.6 days

The month with the most sunshine days is January (17.3 days).
The month with the least sunshine days is September (7.6 days).

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Average UV index in September
Richwood, TX

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

The months with the highest UV index are May, 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
Richwood, TX

Average cloud cover in September - Richwood, TX
  • Average cloud cover in September: 33

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in September
Richwood, TX

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

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