September weather forecast
Thomaston, IN

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Weather in September

The first month of the autumn, September, is still a warm month in Thomaston, Indiana, with an average temperature fluctuating between 73.4°F (23°C) and 56.3°F (13.5°C).

Temperature

As Thomaston, Indiana, steps into September, the average high-temperature is measured at a still warm 73.4°F (23°C), displaying minor differences from August's 78.6°F (25.9°C). In September, Thomaston records an average nighttime temperature of 56.3°F (13.5°C).

Humidity

The average relative humidity in September in Thomaston is 79%.

Rainfall

In September, the rain falls for 13 days. Throughout September, 1.81" (46mm) of precipitation is accumulated. Throughout the year, in Thomaston, there are 154.3 rainfall days, and 26.69" (678mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Thomaston.

Daylight

In September, the average length of the day in Thomaston is 12h and 28min.
On the first day of September, sunrise is at 6:14 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 6:30 pm CDT.

Sunshine

In Thomaston, the average sunshine in September is 8.2h.

UV index

In September, the average daily maximum UV index in Thomaston is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: In September, a daily UV index of 4 turns into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
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Frequently asked questions

What are September temperatures in Thomaston?

September temperatures in Thomaston vary between a high-temperature of 73.4°F (23°C) and a low-temperature of 56.3°F (13.5°C).

What is the average humidity in September in Thomaston?

In September, the average relative humidity is 79%.

How many days does it rain in September in Thomaston?

In September, in Thomaston, the rain falls for 13 days. Throughout September, 1.81" (46mm) of precipitation is accumulated.

When it does not snow in Thomaston?

June through September are months without snowfall in Thomaston.

Does it snow in Thomaston in September?

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

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

The average day length in September in Thomaston is 12h and 28min.

When is the sunrise / sunset in September in Thomaston?

On the first day of September in Thomaston, Indiana, sunrise is at 6:14 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 6:30 pm CDT.

How many hours of sunshine does Thomaston have in September?

The average sunshine duration in September in Thomaston, Indiana, is 8.2h.

What is the UV index intensity in September in Thomaston?

In Thomaston, Indiana, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents 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
Thomaston, IN

Average temperature in September - Thomaston, IN
  • Average high temperature in September: 73.4°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (30°F).

  • Average low temperature in September: 56.3°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

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Average pressure in September
Thomaston, IN

Average pressure in September - Thomaston, IN
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Thomaston, IN

Average wind speed in September - Thomaston, IN
  • Average wind speed in September: 7.2mph

The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

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Average humidity in September
Thomaston, IN

Average humidity in September - Thomaston, IN
  • Average humidity in September: 79%

The months with the highest relative humidity are January, February and July (84%).
The month with the lowest relative humidity is October (75%).

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Average rainfall in September
Thomaston, IN

Average rainfall in September - Thomaston, IN
  • Average rainfall in September: 1.81"

The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is January (1.34").

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Average rainfall days in September
Thomaston, IN

Average rainfall days in September - Thomaston, IN
  • Average rainfall days in September: 13 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (6.7 days).

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Average snowfall in September
Thomaston, IN

Average snowfall in September - Thomaston, IN
  • Average snowfall in September: 0"

The month with the highest snowfall is February (4.21").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Thomaston, IN

Average snowfall days in September - Thomaston, IN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Thomaston, IN

Average daylight in September / Average sunshine in September - Thomaston, IN
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in September: 8h and 1min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

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Average sunshine days in September
Thomaston, IN

Average sunshine days in September - Thomaston, IN
  • Average sunshine days in September: 14.2 days

The month with the most sunshine days is November (15 days).
The month with the least sunshine days is April (10.5 days).

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Average UV index in September
Thomaston, IN

Average UV index in September - Thomaston, IN
  • Average UV index in September: 4

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in September
Thomaston, IN

Average cloud cover in September - Thomaston, IN
  • Average cloud cover in September: 36

The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 34).

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Average visibility in September
Thomaston, IN

Average visibility in September - Thomaston, IN
  • Average visibility in September: 6mi

The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).

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Thomaston, Indiana, USA

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