September weather forecast
Middletown, IN

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Weather in September

September, the first month of the autumn in Middletown, is also a moderately hot month, with an average temperature ranging between max 74.3°F (23.5°C) and min 56.8°F (13.8°C).

Temperature

Middletown's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's moderately hot 79.9°F (26.6°C) to a still warm 74.3°F (23.5°C). Throughout September, Middletown witnesses a consistent average low-temperature of 56.8°F (13.8°C).

Humidity

The average relative humidity in September in Middletown, Indiana, is 78%.

Rainfall

In September, the rain falls for 13.2 days. Throughout September, 1.54" (39mm) of precipitation is accumulated. Throughout the year, there are 146.5 rainfall days, and 22.32" (567mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Middletown, the average length of the day in September is 12h and 26min.
On the first day of September in Middletown, sunrise is at 7:10 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 7:25 pm EDT.

Sunshine

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

UV index

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: A typical high UV index of 4 in September suggests the following recommendations:
Make use of precautions - It is urged to ward off sun damage. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Middletown in September?

In September, the average high-temperature and low-temperature in Middletown, Indiana, are 74.3°F (23.5°C) and 56.8°F (13.8°C) respectively. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in July is estimated at 87.8°F (31°C).

What is the average humidity in September in Middletown?

In Middletown, Indiana, the average relative humidity in September is 78%.

How many days does it rain in September in Middletown?

In September, in Middletown, the rain falls for 13.2 days. Throughout September, 1.54" (39mm) of precipitation is accumulated.

When it does not snow in Middletown?

May through September are months without snowfall in Middletown.

Does it snow in Middletown in September?

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

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

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

When are sunrise and sunset in September in Middletown?

On the first day of September, sunrise is at 7:10 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 7:25 pm EDT.

How many hours of sunshine does Middletown have in September?

In Middletown, Indiana, the average sunshine duration in September is 8.2h.

How high is the UV index in September in Middletown?

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health risk from unsafe 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
Middletown, IN

Average temperature in September - Middletown, IN
  • Average high temperature in September: 74.3°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (32.2°F).

  • Average low temperature in September: 56.8°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

Average pressure in September
Middletown, IN

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

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
Middletown, IN

Average wind speed in September - Middletown, IN
  • Average wind speed in September: 6.8mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

Average humidity in September
Middletown, IN

Average humidity in September - Middletown, IN
  • Average humidity in September: 78%

The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is October (74%).

Average rainfall in September
Middletown, IN

Average rainfall in September - Middletown, IN
  • Average rainfall in September: 1.54"

The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is February (1.22").

Average rainfall days in September
Middletown, IN

Average rainfall days in September - Middletown, IN
  • Average rainfall days in September: 13.2 days

The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (6.3 days).

Average snowfall in September
Middletown, IN

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

The month with the highest snowfall is February (2.24").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Middletown, IN

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

The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Middletown, IN
  • 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: 8h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in September
Middletown, IN

Average sunshine days in September - Middletown, IN
  • Average sunshine days in September: 14.3 days

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is May (10.7 days).

Average UV index in September
Middletown, IN

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

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, March, October, November and December (UV index 2).

Average cloud cover in September
Middletown, IN

Average cloud cover in September - Middletown, IN
  • Average cloud cover in September: 35

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in September
Middletown, IN

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

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

Middletown, Indiana, USA

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