September weather forecast
Grayridge, MO

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Weather in September

September, the first month of the autumn in Grayridge, is still a warm month, with an average temperature ranging between min 62.4°F (16.9°C) and max 81.9°F (27.7°C).

Temperature

During September, the average high-temperature is a warm 81.9°F (27.7°C), maintaining a close resemblance to that of the preceding month. The nights of September anticipate an average low-temperature of 62.4°F (16.9°C).

Heat index

September's mean heat index is evaluated at a hot 86°F (30°C). With unrelenting exposure and activity, one might experience exhaustion, leading to potential heat cramps.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.

Humidity

In Grayridge, the average relative humidity in September is 72%.

Rainfall

The month with the least rainfall in Grayridge is September, when the rain falls for 10.3 days and typically collects 1.06" (27mm) of precipitation.

Snowfall

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

Daylight

In September, the average length of the day is 12h and 24min.
On the first day of September, sunrise is at 6:30 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:43 pm CDT.

Sunshine

In September, the average sunshine is 9.8h.

UV index

In Grayridge, 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 exposure to the Sun's UV radiation for average individuals.
Note: In September, the maximum UV index of 5 transforms into these recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature in Grayridge?

Grayridge in September has an average high-temperature of 81.9°F (27.7°C) and an average low-temperature of 62.4°F (16.9°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, in September is evaluated at 86°F (30°C).

What is the average humidity in September in Grayridge?

In Grayridge, the average relative humidity in September is 72%.

What is the driest month in Grayridge?

The month with the least rainfall in Grayridge is September, when the rain falls for 10.3 days and typically collects 1.06" (27mm) of precipitation.

How much does it rain in Grayridge in September?

In Grayridge, during September, the rain falls for 10.3 days and regularly aggregates up to 1.06" (27mm) of precipitation.

When it does not snow in Grayridge?

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

How many hours of daylight does Grayridge have in September?

The average day length in September in Grayridge, Missouri, is 12h and 24min.

When are sunrise and sunset in September in Grayridge?

In September, on the first day of the month, sunrise is at 6:30 am and sunset at 7:27 pm. On the last day of the month, in Grayridge, sunrise is at 6:54 am and sunset at 6:43 pm CDT.

How many hours of sunshine does Grayridge have in September?

In September, the average sunshine duration in Grayridge is 9.8h.

What is the UV index reading in September in Grayridge?

In September, the average daily maximum UV index in Grayridge, Missouri, is 5. A UV Index of 3 to 5 symbolizes a moderate 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
Grayridge, MO

Average temperature in September - Grayridge, MO
  • Average high temperature in September: 81.9°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (41.7°F).

  • Average low temperature in September: 62.4°F

The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).

Average pressure in September
Grayridge, MO

Average pressure in September - Grayridge, MO
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
Grayridge, MO

Average wind speed in September - Grayridge, MO
  • Average wind speed in September: 6.3mph

The windiest month (with the highest average wind speed) is February (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity in September
Grayridge, MO

Average humidity in September - Grayridge, MO
  • Average humidity in September: 72%

The month with the highest relative humidity is March (78%).
The month with the lowest relative humidity is October (68%).

Average rainfall in September
Grayridge, MO

Average rainfall in September - Grayridge, MO
  • Average rainfall in September: 1.06"

The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is September (1.06").

Average rainfall days in September
Grayridge, MO

Average rainfall days in September - Grayridge, MO
  • Average rainfall days in September: 10.3 days

The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is January (7.4 days).

Average snowfall in September
Grayridge, MO

Average snowfall in September - Grayridge, MO
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.75").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Grayridge, MO

Average snowfall days in September - Grayridge, MO
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Grayridge, MO

Average daylight in September / Average sunshine in September - Grayridge, MO
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in September: 9h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in September
Grayridge, MO

Average sunshine days in September - Grayridge, MO
  • Average sunshine days in September: 18.2 days

The month with the most sunshine days is January (21.3 days).
The months with the least sunshine days are May and July (14.1 days).

Average UV index in September
Grayridge, MO

Average UV index in September - Grayridge, MO
  • Average UV index in September: 5

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in September
Grayridge, MO

Average cloud cover in September - Grayridge, MO
  • Average cloud cover in September: 27

The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 25).

Average visibility in September
Grayridge, MO

Average visibility in September - Grayridge, MO
  • 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).

Grayridge, Missouri, USA

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