September weather forecast
Hollister, OK

Weather in September

The first month of the autumn, September, is also a hot month in Hollister, Oklahoma, with an average temperature ranging between max 86.9°F (30.5°C) and min 68.4°F (20.2°C).

Temperature

In September, the average high-temperature drops from a very hot 96.6°F (35.9°C) in August to a tropical 86.9°F (30.5°C). The average low-temperature, in Hollister, is 68.4°F (20.2°C).

Heat index

The average heat index in September is evaluated at a tropical 92.5°F (33.6°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'real feel', 'feels like', or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional factors like wind, differences in body mass, height, and shape, pregnancy, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

The average relative humidity in September in Hollister is 59%.

Rainfall

In Hollister, in September, it is raining for 12 days, with typically 2.17" (55mm) of accumulated precipitation. Throughout the year, in Hollister, there are 102.6 rainfall days, and 20.55" (522mm) of precipitation is accumulated.

Snowfall

In Hollister, Oklahoma, snow does not fall in May through October.

Daylight

In September, the average length of the day in Hollister is 12h and 22min.
On the first day of the month, sunrise is at 7:08 am and sunset at 8:01 pm. On the last day of September, in Hollister, Oklahoma, sunrise is at 7:29 am and sunset at 7:21 pm CDT.

Sunshine

In Hollister, Oklahoma, the average sunshine in September is 8.7h.

UV index

In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: The daily maximum UV index of 6 in September interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in September in Hollister?

The average high-temperature, in September, is 86.9°F (30.5°C), while the average low-temperature is 68.4°F (20.2°C). In September, the average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 92.5°F (33.6°C).

What is the average humidity in September in Hollister?

In Hollister, Oklahoma, the average relative humidity in September is 59%.

How many days does it rain in September in Hollister?

In Hollister, during September, the rain falls for 12 days and regularly aggregates up to 2.17" (55mm) of precipitation.

When it does not snow in Hollister?

In Hollister, snow does not fall in May through October.

How many hours of daylight does Hollister have in September?

In September, the average day length in Hollister is 12h and 22min.

When are sunrise and sunset in September in Hollister?

On the first day of September in Hollister, sunrise is at 7:08 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 7:21 pm CDT.

How long on average sun shines in September in Hollister?

In September, the average sunshine duration is 8.7h.

What is the UV index intensity in September in Hollister?

In Hollister, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Hollister, OK

Average temperature in September - Hollister, OK
  • Average high temperature in September: 86.9°F

The warmest month (with the highest average high temperature) is July (96.8°F).
The month with the lowest average high temperature is December (52.9°F).

  • Average low temperature in September: 68.4°F

The month with the highest average low temperature is July (76.6°F).
The coldest month (with the lowest average low temperature) is January (34.3°F).

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Average pressure in September
Hollister, OK

Average pressure in September - Hollister, OK
  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in September
Hollister, OK

Average wind speed in September - Hollister, OK
  • Average wind speed in September: 8.8mph

The windiest month (with the highest average wind speed) is April (12.1mph).
The calmest months (with the lowest average wind speed) are August and September (8.8mph).

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Average humidity in September
Hollister, OK

Average humidity in September - Hollister, OK
  • Average humidity in September: 59%

The months with the highest relative humidity are May and December (62%).
The month with the lowest relative humidity is August (49%).

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Average rainfall in September
Hollister, OK

Average rainfall in September - Hollister, OK
  • Average rainfall in September: 2.17"

The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is November (0.79").

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Average rainfall days in September
Hollister, OK

Average rainfall days in September - Hollister, OK
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is May (13 days).
The month with the least rainy days is January (4 days).

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Average snowfall in September
Hollister, OK

Average snowfall in September - Hollister, OK
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.1").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Hollister, OK

Average snowfall days in September - Hollister, OK
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Hollister, OK

Average daylight in September / Average sunshine in September - Hollister, OK
  • Average daylight in September: 12h and 22min

The month with the longest days is June (Average daylight: 14h and 25min).
The month with the shortest days is December (Average daylight: 9h and 55min).

  • Average sunshine in September: 8h and 42min

The months with the most sunshine are June and July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).

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Average sunshine days in September
Hollister, OK

Average sunshine days in September - Hollister, OK
  • Average sunshine days in September: 15.9 days

The month with the most sunshine days is January (25.5 days).
The month with the least sunshine days is September (15.9 days).

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Average UV index in September
Hollister, OK

Average UV index in September - Hollister, OK
  • 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 2).

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Average cloud cover in September
Hollister, OK

Average cloud cover in September - Hollister, OK
  • Average cloud cover in September: 26

The month with the most cloud cover is March (Cloud cover 31).
The months with the least cloud cover are June and August (Cloud cover 18).

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Average visibility in September
Hollister, OK

Average visibility in September - Hollister, OK
  • 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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