September weather forecast
Ash Grove, MO

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Weather in September

The first month of the autumn, September, is still a warm month in Ash Grove, Missouri, with an average temperature ranging between max 80.1°F (26.7°C) and min 59.9°F (15.5°C).

Temperature

September indicates a minor shift in the average high-temperature, from August's tropical 87.1°F (30.6°C) to a warm 80.1°F (26.7°C). Ash Grove's average low-temperature in September is measured at a mild 59.9°F (15.5°C).

Humidity

In Ash Grove, the average relative humidity in September is 73%.

Rainfall

In September, the rain falls for 14.3 days. Throughout September, 2.44" (62mm) of precipitation is accumulated. Throughout the year, there are 167.3 rainfall days, and 37.91" (963mm) of precipitation is accumulated.

Snowfall

June through October are months without snowfall.

Daylight

In Ash Grove, the average length of the day in September is 12h and 25min.
On the first day of September, sunrise is at 6:45 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:58 pm CDT.

Sunshine

In September, the average sunshine is 9.5h.

UV index

In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 5 during September translates into the following directions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Stay sun-safe with clothing that is both closely woven and worn loosely.
Updated: Jun 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

The high-temperature, in September, in Ash Grove, is 80.1°F (26.7°C), while the low-temperature averages to 59.9°F (15.5°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, is evaluated at 98.6°F (37°C).

What is the average humidity in September?

In Ash Grove, the average relative humidity in September is 73%.

How much does it rain in September?

In Ash Grove, in September, during 14.3 rainfall days, 2.44" (62mm) of precipitation is typically accumulated.

When it does not snow in Ash Grove?

In Ash Grove, snow does not fall in June through October.

What is the average length of the day in September?

In Ash Grove, the average day length in September is 12h and 25min.

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:45 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:58 pm CDT.

How long on average sun shines in September?

In Ash Grove, the average sunshine duration in September is 9.5h.

How high is the UV index in September?

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to 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
Ash Grove, MO

Average temperature in September - Ash Grove, MO
  • Average high temperature in September: 80.1°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in September: 59.9°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

Average pressure in September
Ash Grove, MO

Average pressure in September - Ash Grove, MO
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
Ash Grove, MO

Average wind speed in September - Ash Grove, MO
  • Average wind speed in September: 6.8mph

The windiest months (with the highest average wind speed) are January and March (9.8mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).

Average humidity in September
Ash Grove, MO

Average humidity in September - Ash Grove, MO
  • Average humidity in September: 73%

The months with the highest relative humidity are March and May (77%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Ash Grove, MO

Average rainfall in September - Ash Grove, MO
  • Average rainfall in September: 2.44"

The wettest month (with the highest rainfall) is May (5.63").
The driest month (with the least rainfall) is January (1.73").

Average rainfall days in September
Ash Grove, MO

Average rainfall days in September - Ash Grove, MO
  • Average rainfall days in September: 14.3 days

The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in September
Ash Grove, MO

Average snowfall in September - Ash Grove, MO
  • Average snowfall in September: 0"

The month with the highest snowfall is February (3.11").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in September
Ash Grove, MO

Average snowfall days in September - Ash Grove, MO
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (6.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Ash Grove, MO

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

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

  • Average sunshine in September: 9h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).

Average sunshine days in September
Ash Grove, MO

Average sunshine days in September - Ash Grove, MO
  • Average sunshine days in September: 13 days

The month with the most sunshine days is December (18.6 days).
The month with the least sunshine days is July (9.3 days).

Average UV index in September
Ash Grove, MO

Average UV index in September - Ash Grove, MO
  • Average UV index in September: 5

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in September
Ash Grove, MO

Average cloud cover in September - Ash Grove, MO
  • Average cloud cover in September: 29

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in September
Ash Grove, MO

Average visibility in September - Ash Grove, 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).

Ash Grove, Missouri, USA

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