September weather forecast
Spring Hollow, IN

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Weather in September

September, the first month of the autumn in Spring Hollow, is still a warm month, with an average temperature varying between 75.6°F (24.2°C) and 57.9°F (14.4°C).

Temperature

September notes an average high-temperature of a still moderately hot 75.6°F (24.2°C), subtly differing from August's 80.4°F (26.9°C). Spring Hollow, in September, observes a steady average low-temperature of 57.9°F (14.4°C).

Humidity

In Spring Hollow, the average relative humidity in September is 77%.

Rainfall

In Spring Hollow, Indiana, in September, during 14 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. In Spring Hollow, during the entire year, the rain falls for 158.4 days and collects up to 28.23" (717mm) of precipitation.

Snowfall

May through September are months without snowfall in Spring Hollow, Indiana.

Daylight

In September, the average length of the day in Spring Hollow is 12h and 26min.
On the first day of September, sunrise is at 7:13 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 7:28 pm EDT.

Sunshine

The average sunshine in September in Spring Hollow is 8.4h.

UV index

In Spring Hollow, Indiana, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In September, the UV index of 5 transforms into the following advice:
Ensure safety - Imperative it is to shield skin and eyes from damage. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature in Spring Hollow?

In Spring Hollow, 75.6°F (24.2°C) is the average high-temperature and 57.9°F (14.4°C) is the average low-temperature during September. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in July is computed to be 87.8°F (31°C).

What is the average humidity in September in Spring Hollow?

The average relative humidity in September is 77%.

How many days does it rain in September in Spring Hollow?

In Spring Hollow, in September, during 14 rainfall days, 1.93" (49mm) of precipitation is typically accumulated.

When it does not snow in Spring Hollow?

In Spring Hollow, snow does not fall in May through September.

Does it snow in Spring Hollow in September?

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

What is the average length of the day in September in Spring Hollow?

In Spring Hollow, Indiana, the average day length in September is 12h and 26min.

When are sunrise and sunset in September in Spring Hollow?

In September, on the first day of the month, sunrise is at 7:13 am and sunset at 8:15 pm. On the last day of the month, in Spring Hollow, sunrise is at 7:40 am and sunset at 7:28 pm EDT.

How many hours of sunshine does Spring Hollow have in September?

In September, the average sunshine duration in Spring Hollow is 8.4h.

How high is the UV index in September in Spring Hollow?

The average daily maximum UV index in September in Spring Hollow is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability 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
Spring Hollow, IN

Average temperature in September - Spring Hollow, IN
  • Average high temperature in September: 75.6°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in September: 57.9°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).

Average pressure in September
Spring Hollow, IN

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
Spring Hollow, IN

Average wind speed in September - Spring Hollow, IN
  • Average wind speed in September: 6.6mph

The windiest months (with the highest average wind speed) are January and February (9.9mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity in September
Spring Hollow, IN

Average humidity in September - Spring Hollow, IN
  • Average humidity in September: 77%

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

Average rainfall in September
Spring Hollow, IN

Average rainfall in September - Spring Hollow, IN
  • Average rainfall in September: 1.93"

The wettest months (with the highest rainfall) are April and May (3.43").
The driest month (with the least rainfall) is February (1.65").

Average rainfall days in September
Spring Hollow, IN

Average rainfall days in September - Spring Hollow, IN
  • Average rainfall days in September: 14 days

The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is January (7.1 days).

Average snowfall in September
Spring Hollow, IN

Average snowfall in September - Spring Hollow, IN
  • Average snowfall in September: 0"

The month with the highest snowfall is January (2.83").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Spring Hollow, IN

Average snowfall days in September - Spring Hollow, IN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (10.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Spring Hollow, IN

Average daylight in September / Average sunshine in September - Spring Hollow, 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 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in September
Spring Hollow, IN

Average sunshine days in September - Spring Hollow, IN
  • Average sunshine days in September: 14 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is May (9.6 days).

Average UV index in September
Spring Hollow, IN

Average UV index in September - Spring Hollow, IN
  • Average UV index in September: 5

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

Average cloud cover in September
Spring Hollow, IN

Average cloud cover in September - Spring Hollow, IN
  • Average cloud cover in September: 32

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in September
Spring Hollow, IN

Average visibility in September - Spring Hollow, IN
  • 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).

Spring Hollow, Indiana, USA

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