September weather forecast
Asphaltum, IN

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Weather in September

September, the first month of the autumn in Asphaltum, is still a warm month, with an average temperature ranging between min 56.8°F (13.8°C) and max 74.7°F (23.7°C).

Temperature

The advent of September sees the average high-temperature at a still moderately hot 74.7°F (23.7°C), subtly shifted from August's 79.3°F (26.3°C). An average temperature of 56.8°F (13.8°C) marks the nights in September.

Humidity

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

Rainfall

In Asphaltum, during September, the rain falls for 12.4 days and regularly aggregates up to 1.46" (37mm) of precipitation. In Asphaltum, during the entire year, the rain falls for 153.9 days and collects up to 23.46" (596mm) of precipitation.

Snowfall

May through October are months without snowfall in Asphaltum, Indiana.

Daylight

The average length of the day in September in Asphaltum, Indiana, is 12h and 28min.
On the first day of the month, sunrise is at 6:15 am and sunset at 7:20 pm. On the last day of September, in Asphaltum, sunrise is at 6:44 am and sunset at 6:31 pm CDT.

Sunshine

The average sunshine in September in Asphaltum is 8.5h.

UV index

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: A maximum high UV index of 4 in September translates into the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures in Asphaltum?

An average high-temperature, in September, in Asphaltum, is 74.7°F (23.7°C) and the average low-temperature is 56.8°F (13.8°C). The average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, in July is appraised at 86°F (30°C).

What is the average humidity in September in Asphaltum?

The average relative humidity in September in Asphaltum is 78%.

How much does it rain in Asphaltum in September?

In September, in Asphaltum, the rain falls for 12.4 days. Throughout September, 1.46" (37mm) of precipitation is accumulated.

When it does not snow in Asphaltum?

In Asphaltum, snow does not fall in May through October.

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

In Asphaltum, Indiana, the average day length in September is 12h and 28min.

When are sunrise and sunset in September in Asphaltum?

In September, on the first day of the month, sunrise is at 6:15 am and sunset at 7:20 pm. On the last day of the month, in Asphaltum, Indiana, sunrise is at 6:44 am and sunset at 6:31 pm CDT.

How long on average sun shines in September in Asphaltum?

In Asphaltum, Indiana, the average sunshine duration in September is 8.5h.

What is the UV index reading in September in Asphaltum?

In September, the average daily maximum UV index in Asphaltum is 4. A UV Index reading 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
Asphaltum, IN

Average temperature in September - Asphaltum, IN
  • Average high temperature in September: 74.7°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.2°F).

  • Average low temperature in September: 56.8°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19°F).

Average pressure in September
Asphaltum, IN

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

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

Average wind speed in September
Asphaltum, IN

Average wind speed in September - Asphaltum, IN
  • Average wind speed in September: 7.1mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average humidity in September
Asphaltum, IN

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

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Asphaltum, IN

Average rainfall in September - Asphaltum, IN
  • Average rainfall in September: 1.46"

The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is January (1.1").

Average rainfall days in September
Asphaltum, IN

Average rainfall days in September - Asphaltum, IN
  • Average rainfall days in September: 12.4 days

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is January (6.6 days).

Average snowfall in September
Asphaltum, IN

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

The month with the highest snowfall is February (3.5").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Asphaltum, IN

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

The month with the highest number of snowfall days is January (13.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Asphaltum, 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 18min).

  • Average sunshine in September: 8h and 3min

The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in September
Asphaltum, IN

Average sunshine days in September - Asphaltum, IN
  • Average sunshine days in September: 14.6 days

The month with the most sunshine days is November (17.5 days).
The months with the least sunshine days are June and July (10.3 days).

Average UV index in September
Asphaltum, IN

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

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

Average cloud cover in September
Asphaltum, IN

Average cloud cover in September - Asphaltum, IN
  • Average cloud cover in September: 34

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in September
Asphaltum, IN

Average visibility in September - Asphaltum, 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).

Asphaltum, Indiana, USA

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