September weather forecast
Darlington, MO

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Weather in September

September, the first month of the autumn in Darlington, is also a moderately hot month, with an average temperature ranging between min 57.6°F (14.2°C) and max 77°F (25°C).

Temperature

September signals a slight drop in average high-temperature, sliding from August's 82.4°F (28°C) to a still warm 77°F (25°C). During the nights in September, the temperature averages to a moderate 57.6°F (14.2°C).

Humidity

The average relative humidity in September is 76%.

Rainfall

In Darlington, Missouri, in September, it is raining for 11 days, with typically 2.44" (62mm) of accumulated precipitation. Throughout the year, there are 130.3 rainfall days, and 25.71" (653mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of the month, sunrise is at 6:45 am and sunset at 7:48 pm. On the last day of September, sunrise is at 7:13 am and sunset at 7:00 pm CDT.

Sunshine

In Darlington, the average sunshine in September is 9.3h.

UV index

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Ensure safety - Recommendations to avert sunburn are presented. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Updated: Jul 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Darlington in September?

In September, the average high-temperature and low-temperature in Darlington are 77°F (25°C) and 57.6°F (14.2°C) respectively. In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 89.6°F (32°C).

What is the average humidity in September in Darlington?

In Darlington, the average relative humidity in September is 76%.

How much does it rain in September?

In Darlington, during September, the rain falls for 11 days and regularly aggregates up to 2.44" (62mm) of precipitation.

When it does not snow?

June through September are months without snowfall.

Does it snow in September?

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

What is the average length of the day in September?

In Darlington, the average day length in September is 12h and 26min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:45 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:00 pm CDT.

How long on average sun shines in September?

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

What is the UV index reading in September?

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability 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
Darlington, MO

Average temperature in September - Darlington, MO
  • Average high temperature in September: 77°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in September: 57.6°F

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in September
Darlington, MO

Average pressure in September - Darlington, MO
  • Average pressure in September: 30.01"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in September
Darlington, MO

Average wind speed in September - Darlington, MO
  • Average wind speed in September: 7.4mph

The windiest months (with the highest average wind speed) are February and March (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

Average humidity in September
Darlington, MO

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

The month with the highest relative humidity is June (81%).
The months with the lowest relative humidity are October and November (71%).

Average rainfall in September
Darlington, MO

Average rainfall in September - Darlington, MO
  • Average rainfall in September: 2.44"

The wettest month (with the highest rainfall) is June (3.98").
The driest months (with the least rainfall) are January and February (0.91").

Average rainfall days in September
Darlington, MO

Average rainfall days in September - Darlington, MO
  • Average rainfall days in September: 11 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (4.9 days).

Average snowfall in September
Darlington, MO

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

The month with the highest snowfall is January (3.82").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Darlington, MO

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

The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Darlington, 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 24min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in September
Darlington, MO

Average sunshine days in September - Darlington, MO
  • Average sunshine days in September: 16.7 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is May (11.3 days).

Average UV index in September
Darlington, MO

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

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

Average cloud cover in September
Darlington, MO

Average cloud cover in September - Darlington, MO
  • Average cloud cover in September: 29

The months with the most cloud cover are January and March (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 28).

Average visibility in September
Darlington, MO

Average visibility in September - Darlington, 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).

Darlington, Missouri, USA

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