September weather forecast
Adair, MO

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Weather in September

September, the first month of the autumn in Adair, is still a warm month, with an average temperature varying between 57.4°F (14.1°C) and 76.8°F (24.9°C).

Temperature

September's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's moderately hot 82.4°F (28°C) to a still warm 76.8°F (24.9°C). Adair witnesses a consistent average low-temperature of 57.4°F (14.1°C) throughout September.

Humidity

The average relative humidity in September is 76%.

Rainfall

In September, the rain falls for 9.7 days. Throughout September, 1.65" (42mm) of precipitation is accumulated. In Adair, during the entire year, the rain falls for 127.8 days and collects up to 19.53" (496mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

The average length of the day in September in Adair is 12h and 26min.
On the first day of the month, sunrise is at 6:37 am and sunset at 7:40 pm. On the last day of September, sunrise is at 7:05 am and sunset at 6:52 pm CDT.

Sunshine

In September, the average sunshine is 9.3h.

UV index

In Adair, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A daily high UV index of 5 in September leads to these guidelines:
Heed the precautions - Suggestions to avoid sunburn are made. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures in Adair?

In September, the average high-temperature and low-temperature are 76.8°F (24.9°C) and 57.4°F (14.1°C) respectively. The average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, in August is computed to be 89.6°F (32°C).

What is the average humidity in September in Adair?

The average relative humidity in September in Adair is 76%.

How many days does it rain in September in Adair?

In Adair, Missouri, in September, it is raining for 9.7 days, with typically 1.65" (42mm) of accumulated precipitation.

When it does not snow in Adair?

In Adair, snow does not fall in May through September.

Does it snow in Adair in September?

In Adair, Missouri, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Adair have in September?

The average day length in September in Adair, Missouri, is 12h and 26min.

What time are sunrise and sunset in September in Adair?

In September, on the first day of the month, sunrise is at 6:37 am and sunset at 7:40 pm. On the last day of the month, in Adair, Missouri, sunrise is at 7:05 am and sunset at 6:52 pm CDT.

How long on average sun shines in September in Adair?

In September, the average sunshine duration in Adair is 9.3h.

What is the UV index reading in September in Adair?

In Adair, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from 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
Adair, MO

Average temperature in September - Adair, MO
  • Average high temperature in September: 76.8°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (32.2°F).

  • Average low temperature in September: 57.4°F

The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).

Average pressure in September
Adair, MO

Average pressure in September - Adair, 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 (29.9"Hg).

Average wind speed in September
Adair, MO

Average wind speed in September - Adair, MO
  • Average wind speed in September: 7.6mph

The windiest months (with the highest average wind speed) are January and February (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

Average humidity in September
Adair, MO

Average humidity in September - Adair, MO
  • Average humidity in September: 76%

The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Adair, MO

Average rainfall in September - Adair, MO
  • Average rainfall in September: 1.65"

The wettest month (with the highest rainfall) is June (2.91").
The driest month (with the least rainfall) is December (0.79").

Average rainfall days in September
Adair, MO

Average rainfall days in September - Adair, MO
  • Average rainfall days in September: 9.7 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (5 days).

Average snowfall in September
Adair, MO

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

The month with the highest snowfall is January (2.36").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Adair, MO

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

The month with the highest number of snowfall days is January (9.6 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
Adair, MO

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in September
Adair, MO

Average sunshine days in September - Adair, MO
  • Average sunshine days in September: 17.9 days

The month with the most sunshine days is December (19.5 days).
The month with the least sunshine days is June (11.3 days).

Average UV index in September
Adair, MO

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

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

Average cloud cover in September
Adair, MO

Average cloud cover in September - Adair, MO
  • Average cloud cover in September: 30

The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 29).

Average visibility in September
Adair, MO

Average visibility in September - Adair, 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).

Adair, Missouri, USA

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