September weather forecast
Milltown, MO

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Weather in September

September, the first month of the autumn in Milltown, is still a warm month, with an average temperature ranging between min 62.2°F (16.8°C) and max 82°F (27.8°C).

Temperature

In September, the average high-temperature marginally drops from a tropical 87.8°F (31°C) in August to a warm 82°F (27.8°C). Throughout September, Milltown registers a consistent average low-temperature of 62.2°F (16.8°C).

Heat index

For September, the heat index is appraised at a hot 87.8°F (31°C). One might feel worn out with persistent exposure and activity, resulting in heat cramps.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.

Humidity

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

Rainfall

September is the month with the least rainfall. Rain falls for 12.5 days and accumulates 1.89" (48mm) of precipitation.

Snowfall

In Milltown, snow does not fall in April through September.

Daylight

In Milltown, the average length of the day in September is 12h and 24min.
On the first day of the month, sunrise is at 6:34 am and sunset at 7:30 pm. On the last day of September, in Milltown, sunrise is at 6:57 am and sunset at 6:46 pm CDT.

Sunshine

In Milltown, the average sunshine in September is 9.8h.

UV index

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: A maximum UV index of 5 in September translates into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. 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 are the temperatures in Milltown in September?

The high-temperature during September is 82°F (27.8°C) and the low-temperature is 62.2°F (16.8°C). In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, is appraised at 87.8°F (31°C).

What is the average humidity in September in Milltown?

The average relative humidity in September in Milltown is 73%.

What is the driest month in Milltown?

September is the month with the least rainfall in Milltown. Rain falls for 12.5 days and accumulates 1.89" (48mm) of precipitation.

How much does it rain in Milltown in September?

In September, in Milltown, the rain falls for 12.5 days. Throughout September, 1.89" (48mm) of precipitation is accumulated.

When it does not snow in Milltown?

In Milltown, Missouri, snow does not fall in April through September.

Does it snow in Milltown in September?

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

What is the average length of the day in September in Milltown?

In Milltown, the average day length in September is 12h and 24min.

When is the sunrise / sunset in September in Milltown?

In September, on the first day of the month, sunrise is at 6:34 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:46 pm CDT.

How many hours of sunshine does Milltown have in September?

The average sunshine duration in September in Milltown, Missouri, is 9.8h.

How high is the UV index in September in Milltown?

In Milltown, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health risk 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
Milltown, MO

Average temperature in September - Milltown, MO
  • Average high temperature in September: 82°F

The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (43.3°F).

  • Average low temperature in September: 62.2°F

The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).

Average pressure in September
Milltown, MO

Average pressure in September - Milltown, MO
  • Average pressure in September: 30.01"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
Milltown, MO

Average wind speed in September - Milltown, MO
  • Average wind speed in September: 5.8mph

The windiest month (with the highest average wind speed) is February (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

Average humidity in September
Milltown, MO

Average humidity in September - Milltown, MO
  • Average humidity in September: 73%

The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (70%).

Average rainfall in September
Milltown, MO

Average rainfall in September - Milltown, MO
  • Average rainfall in September: 1.89"

The wettest month (with the highest rainfall) is May (4.84").
The driest month (with the least rainfall) is September (1.89").

Average rainfall days in September
Milltown, MO

Average rainfall days in September - Milltown, MO
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is January (10 days).

Average snowfall in September
Milltown, MO

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

The month with the highest snowfall is February (1.38").
The months with the least snowfall are April, May, June, July, August and September (0").

Average snowfall days in September
Milltown, MO

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

The month with the highest number of snowfall days is January (3.2 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Milltown, 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 42min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in September
Milltown, MO

Average sunshine days in September - Milltown, MO
  • Average sunshine days in September: 14.8 days

The month with the most sunshine days is December (18.5 days).
The month with the least sunshine days is July (9.9 days).

Average UV index in September
Milltown, MO

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

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

Average cloud cover in September
Milltown, MO

Average cloud cover in September - Milltown, MO
  • Average cloud cover in September: 28

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 25).

Average visibility in September
Milltown, MO

Average visibility in September - Milltown, 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).

Milltown, Missouri, USA

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