September weather forecast
Grantwood Village, MO

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Weather in September

September, the first month of the autumn in Grantwood Village, is also a moderately hot month, with an average temperature varying between 59.9°F (15.5°C) and 79.7°F (26.5°C).

Temperature

September indicates a minor shift in the average high-temperature, from August's 85.6°F (29.8°C) to a still moderately hot 79.7°F (26.5°C). An average low-temperature of 59.9°F (15.5°C) is expected in Grantwood Village during September.

Humidity

In Grantwood Village, the average relative humidity in September is 73%.

Rainfall

In Grantwood Village, in September, it is raining for 12.6 days, with typically 2.13" (54mm) of accumulated precipitation. In Grantwood Village, during the entire year, the rain falls for 146.1 days and collects up to 32.36" (822mm) of precipitation.

Snowfall

April through October are months without snowfall in Grantwood Village.

Daylight

In September, the average length of the day is 12h and 25min.
On the first day of the month, sunrise is at 6:31 am and sunset at 7:30 pm. On the last day of September, sunrise is at 6:57 am and sunset at 6:45 pm CDT.

Sunshine

In September, the average sunshine in Grantwood Village is 9.4h.

UV index

In September, the average daily maximum UV index in Grantwood Village is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: In September, the UV index of 5 transforms into the following advice:
Prioritize safety - Suggestions to prevent sun damage are offered. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September in Grantwood Village?

September temperatures vary between a high-temperature of 79.7°F (26.5°C) and a low-temperature of 59.9°F (15.5°C). The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is estimated at 96.8°F (36°C).

What is the average humidity in September in Grantwood Village?

In September, the average relative humidity is 73%.

How many days does it rain in September in Grantwood Village?

In Grantwood Village, Missouri, in September, it is raining for 12.6 days, with typically 2.13" (54mm) of accumulated precipitation.

When it does not snow in Grantwood Village?

In Grantwood Village, Missouri, snow does not fall in April through October.

What is the average length of the day in September in Grantwood Village?

The average day length in September in Grantwood Village, Missouri, is 12h and 25min.

When are sunrise and sunset in September in Grantwood Village?

In September, on the first day of the month, sunrise is at 6:31 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:45 pm CDT.

How many hours of sunshine does Grantwood Village have in September?

The average sunshine duration in September in Grantwood Village, Missouri, is 9.4h.

What is the UV index reading in September in Grantwood Village?

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health threat 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
Grantwood Village, MO

Average temperature in September - Grantwood Village, MO
  • Average high temperature in September: 79.7°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in September: 59.9°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (25°F).

Average pressure in September
Grantwood Village, MO

Average pressure in September - Grantwood Village, 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 (29.92"Hg).

Average wind speed in September
Grantwood Village, MO

Average wind speed in September - Grantwood Village, MO
  • Average wind speed in September: 5.9mph

The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

Average humidity in September
Grantwood Village, MO

Average humidity in September - Grantwood Village, MO
  • Average humidity in September: 73%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (71%).

Average rainfall in September
Grantwood Village, MO

Average rainfall in September - Grantwood Village, MO
  • Average rainfall in September: 2.13"

The wettest month (with the highest rainfall) is May (3.94").
The driest months (with the least rainfall) are February and November (1.77").

Average rainfall days in September
Grantwood Village, MO

Average rainfall days in September - Grantwood Village, MO
  • Average rainfall days in September: 12.6 days

The month with the highest number of rainy days is July (16.9 days).
The months with the least rainy days are January and February (6.8 days).

Average snowfall in September
Grantwood Village, MO

Average snowfall in September - Grantwood Village, MO
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.6").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Grantwood Village, MO

Average snowfall days in September - Grantwood Village, MO
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (4.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Grantwood Village, MO

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

Average sunshine days in September
Grantwood Village, MO

Average sunshine days in September - Grantwood Village, MO
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is June (11.6 days).

Average UV index in September
Grantwood Village, MO

Average UV index in September - Grantwood Village, 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, February and December (UV index 2).

Average cloud cover in September
Grantwood Village, MO

Average cloud cover in September - Grantwood Village, MO
  • Average cloud cover in September: 30

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

Average visibility in September
Grantwood Village, MO

Average visibility in September - Grantwood Village, 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).

Grantwood Village, Missouri, USA

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