September weather forecast
Windom, TX

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Weather in September

The first month of the autumn, September, is still a hot month in Windom, Texas, with temperature in the range of an average low of 67.5°F (19.7°C) and an average high of 86.2°F (30.1°C).

Temperature

Windom's September weather features a light decline in high-temperatures, reducing from 93.9°F (34.4°C) in August to a still tropical 86.2°F (30.1°C). During the month of September, the nighttime temperature falls to an average of 67.5°F (19.7°C).

Heat index

The heat index value during September is appraised at a torrid 95°F (35°C). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. 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. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

In September, the average relative humidity is 67%.

Rainfall

In Windom, Texas, in September, it is raining for 12.9 days, with typically 2.99" (76mm) of accumulated precipitation. In Windom, during the entire year, the rain falls for 148.6 days and collects up to 35.31" (897mm) of precipitation.

Snowfall

In Windom, snow does not fall in April through October.

Daylight

The average length of the day in September is 12h and 22min.
On the first day of the month, sunrise is at 6:58 am and sunset at 7:48 pm. On the last day of September, sunrise is at 7:18 am and sunset at 7:09 pm CDT.

Sunshine

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

UV index

In Windom, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index of 6 during September translates into these guidelines:
Prevent overexposure. Protection from the sun's harmful effects is needed. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during September?

Windom in September has an average high-temperature of 86.2°F (30.1°C) and an average low-temperature of 67.5°F (19.7°C). The average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in September is appraised at 95°F (35°C).

What is the average humidity in September?

In September, the average relative humidity is 67%.

How much does it rain in September?

In September, the rain falls for 12.9 days. Throughout September, 2.99" (76mm) of precipitation is accumulated.

When it does not snow?

In Windom, snow does not fall in April through October.

How many hours of daylight does Windom have in September?

The average day length in September is 12h and 22min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:58 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:09 pm CDT.

How many hours of sunshine does Windom have in September?

The average sunshine duration in September in Windom is 8.6h.

How high is the UV index in September?

In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
Windom, TX

Average temperature in September - Windom, TX
  • Average high temperature in September: 86.2°F

The warmest month (with the highest average high temperature) is August (93.9°F).
The month with the lowest average high temperature is January (52°F).

  • Average low temperature in September: 67.5°F

The month with the highest average low temperature is July (73.9°F).
The coldest month (with the lowest average low temperature) is January (36.7°F).

Average pressure in September
Windom, TX

Average pressure in September - Windom, TX
  • Average pressure in September: 29.98"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).

Average wind speed in September
Windom, TX

Average wind speed in September - Windom, TX
  • Average wind speed in September: 6.8mph

The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest months (with the lowest average wind speed) are August and September (6.8mph).

Average humidity in September
Windom, TX

Average humidity in September - Windom, TX
  • Average humidity in September: 67%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is August (63%).

Average rainfall in September
Windom, TX

Average rainfall in September - Windom, TX
  • Average rainfall in September: 2.99"

The wettest month (with the highest rainfall) is October (4.09").
The driest month (with the least rainfall) is January (1.69").

Average rainfall days in September
Windom, TX

Average rainfall days in September - Windom, TX
  • Average rainfall days in September: 12.9 days

The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is January (8.4 days).

Average snowfall in September
Windom, TX

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

The month with the highest snowfall is February (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Windom, TX

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

The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

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

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

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

Average sunshine days in September
Windom, TX

Average sunshine days in September - Windom, TX
  • Average sunshine days in September: 15.9 days

The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is April (13.5 days).

Average UV index in September
Windom, TX

Average UV index in September - Windom, 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 2).

Average cloud cover in September
Windom, TX

Average cloud cover in September - Windom, TX
  • Average cloud cover in September: 29

The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 22).

Average visibility in September
Windom, TX

Average visibility in September - Windom, 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).

Windom, Texas, USA

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