October weather forecast
New Castle, IN

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Weather in October

October in New Castle is a celebration of autumn's magnificent colors. A visible dip in the temperature with highs around 62.1°F (16.7°C) and lows nearing 46.6°F (8.1°C) underscores the city's transition into cooler climes. Coats make their return as the cool winds of October blow through the city. Autumn blankets the city in an array of color, from deep reds to vibrant golds. This is the essence of October: a visual and meteorological shift from fall's warmth to winter's chill in New Castle.

Temperature

The onset of October is marked by a decrease in temperature, transitioning from a moderately hot 74.3°F (23.5°C) in September to a refreshing 62.1°F (16.7°C). New Castle records an average nighttime low of 46.6°F (8.1°C) in October.

Humidity

With an average relative humidity of 74%, October is the least humid month.

Rainfall

In New Castle, in October, during 13.7 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. In New Castle, during the entire year, the rain falls for 169.4 days and collects up to 31.77" (807mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall in New Castle, Indiana. October is the first month it typically snows in New Castle, Indiana. Throughout October, in the average 0.7 snowfall days, it receives 0.31" (8mm) of snow. In New Castle, during the entire year, snow falls for 42.7 days and aggregates up to 13.82" (351mm) of snow.

Daylight

In October, the average length of the day in New Castle is 11h and 8min.
On the first day of the month, sunrise is at 7:38 am and sunset at 7:23 pm. On the last day of October, sunrise is at 8:10 am and sunset at 6:40 pm EDT.

Sunshine

In October, the average sunshine in New Castle is 6.4h.

UV index

The average daily maximum UV index in October is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 2 during October leads to these advisories:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are October temperatures in New Castle?

In October, in New Castle, the average high-temperature is 62.1°F (16.7°C), and the average low-temperature is 46.6°F (8.1°C). The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in July is calculated to be 86°F (30°C).

What is the least humid month in New Castle?

With an average relative humidity of 74%, October is the least humid month in New Castle, Indiana.

What is the average humidity in October in New Castle?

In October, the average relative humidity in New Castle, Indiana, is 74%.

How much does it rain in New Castle in October?

In New Castle, Indiana, in October, during 13.7 rainfall days, 2.09" (53mm) of precipitation is typically accumulated.

When does it start snowing in New Castle?

October is the first month it typically snows. Throughout October, in the average 0.7 snowfall days, it receives 0.31" (8mm) of snow.

What is the average length of the day in October in New Castle?

In October, the average day length in New Castle, Indiana, is 11h and 8min.

What time are sunrise and sunset in October in New Castle?

On the first day of October in New Castle, Indiana, sunrise is at 7:38 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 8:10 am and sunset at 6:40 pm EDT.

How long on average sun shines in October in New Castle?

In New Castle, Indiana, the average sunshine duration in October is 6.4h.

How high is the UV index in October in New Castle?

The average daily maximum UV index in October in New Castle, Indiana, is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
New Castle, IN

Average temperature in October - New Castle, IN
  • Average high temperature in October: 62.1°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (32.2°F).

  • Average low temperature in October: 46.6°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

Average pressure in October
New Castle, IN

Average pressure in October - New Castle, IN
  • Average pressure in October: 30.03"Hg

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

Average wind speed in October
New Castle, IN

Average wind speed in October - New Castle, IN
  • Average wind speed in October: 8.6mph

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 October
New Castle, IN

Average humidity in October - New Castle, IN
  • Average humidity in October: 74%

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 October
New Castle, IN

Average rainfall in October - New Castle, IN
  • Average rainfall in October: 2.09"

The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is February (1.85").

Average rainfall days in October
New Castle, IN

Average rainfall days in October - New Castle, IN
  • Average rainfall days in October: 13.7 days

The month with the highest number of rainy days is May (19.7 days).
The month with the least rainy days is February (8.8 days).

Average snowfall in October
New Castle, IN

Average snowfall in October - New Castle, IN
  • Average snowfall in October: 0.31"

The month with the highest snowfall is January (3.31").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in October
New Castle, IN

Average snowfall days in October - New Castle, IN
  • Average snowfall days in October: 0.7 days

The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in October /
Average sunshine in October
New Castle, IN

Average daylight in October / Average sunshine in October - New Castle, IN
  • Average daylight in October: 11h and 1min

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 October: 6h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in October
New Castle, IN

Average sunshine days in October - New Castle, IN
  • Average sunshine days in October: 16.1 days

The months with the most sunshine days are October and November (16.1 days).
The month with the least sunshine days is May (9.1 days).

Average UV index in October
New Castle, IN

Average UV index in October - New Castle, IN
  • Average UV index in October: 2

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

Average cloud cover in October
New Castle, IN

Average cloud cover in October - New Castle, IN
  • Average cloud cover in October: 39

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in October
New Castle, IN

Average visibility in October - New Castle, IN
  • Average visibility in October: 6mi

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

New Castle, Indiana, USA

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