September weather forecast
Franklin, MO

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Weather in September

The first month of the autumn, September, is still a warm month in Franklin, Missouri, with an average temperature ranging between max 79.5°F (26.4°C) and min 59°F (15°C).

Temperature

A mild drop in Franklin's average high-temperature is observed in September, transitioning from 85.5°F (29.7°C) in August to a still moderately hot 79.5°F (26.4°C). Franklin encounters an average low-temperature of 59°F (15°C) during September nights.

Humidity

The average relative humidity in September in Franklin is 74%.

Rainfall

In Franklin, in September, during 11.9 rainfall days, 2.36" (60mm) of precipitation is typically accumulated. In Franklin, during the entire year, the rain falls for 136.6 days and collects up to 28.31" (719mm) of precipitation.

Snowfall

In Franklin, snow does not fall in June through September.

Daylight

The average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 6:40 am and sunset at 7:41 pm. On the last day of September, in Franklin, sunrise is at 7:06 am and sunset at 6:54 pm CDT.

Sunshine

In Franklin, Missouri, the average sunshine in September is 9.4h.

UV index

In September, the average daily maximum UV index in Franklin is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: The UV index of 5 in September translates into these instructions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. 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 Franklin in September?

September temperatures in Franklin vary between a high-temperature of 79.5°F (26.4°C) and a low-temperature of 59°F (15°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 95°F (35°C).

What is the average humidity in September in Franklin?

In Franklin, the average relative humidity in September is 74%.

How many days does it rain in September in Franklin?

In Franklin, Missouri, in September, it is raining for 11.9 days, with typically 2.36" (60mm) of accumulated precipitation.

When it does not snow in Franklin?

June through September are months without snowfall in Franklin.

Does it snow in Franklin in September?

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

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

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

When are sunrise and sunset in September in Franklin?

In September, on the first day of the month, sunrise is at 6:40 am and sunset at 7:41 pm. On the last day of the month, in Franklin, sunrise is at 7:06 am and sunset at 6:54 pm CDT.

How long on average sun shines in September in Franklin?

The average sunshine duration in September is 9.4h.

What is the UV index reading in September in Franklin?

In September, the average daily maximum UV index in Franklin is 5. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Franklin, MO

Average temperature in September - Franklin, MO
  • Average high temperature in September: 79.5°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (36.9°F).

  • Average low temperature in September: 59°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

Average pressure in September
Franklin, MO

Average pressure in September - Franklin, 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 (29.91"Hg).

Average wind speed in September
Franklin, MO

Average wind speed in September - Franklin, MO
  • Average wind speed in September: 6.9mph

The windiest month (with the highest average wind speed) is March (9.7mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).

Average humidity in September
Franklin, MO

Average humidity in September - Franklin, MO
  • Average humidity in September: 74%

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

Average rainfall in September
Franklin, MO

Average rainfall in September - Franklin, MO
  • Average rainfall in September: 2.36"

The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is January (1.26").

Average rainfall days in September
Franklin, MO

Average rainfall days in September - Franklin, MO
  • Average rainfall days in September: 11.9 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (5.9 days).

Average snowfall in September
Franklin, MO

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

The month with the highest snowfall is January (3.27").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Franklin, MO

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

The month with the highest number of snowfall days is January (7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 9h and 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).

Average sunshine days in September
Franklin, MO

Average sunshine days in September - Franklin, MO
  • Average sunshine days in September: 16.4 days

The month with the most sunshine days is December (20.3 days).
The month with the least sunshine days is May (12.1 days).

Average UV index in September
Franklin, MO

Average UV index in September - Franklin, 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
Franklin, MO

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

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

Average visibility in September
Franklin, MO

Average visibility in September - Franklin, 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).

Franklin, Missouri, USA

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