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October Weather in New Castle, United States

Last updated: June 24, 2025

In October, the average temperature in New Castle, United States hovers around 14°C (57°F). Expect a range of temperatures, with minimums dipping to -1°C (30°F) and maximums soaring to 32°C (90°F). During this month, anticipate about 101 mm (4.0 in) of precipitation spread over 12 days, coupled with an average humidity of 76%. Stay prepared for a mix of weather conditions!

October Temperature in New Castle

In October in New Castle, the average temperature is 14°C (57°F). The maximum can reach 32°C (90°F) and the minimum can be as low as -1°C (30°F). This wide range of temperatures means travelers should be prepared for both warm days and cool evenings.

October Weather in New Castle: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in New Castle, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In New Castle, October typically has an average temperature of 14°C (57°F), with highs reaching up to 32°C (90°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec293342516372757369574135
Data source: Temperature data for New Castle generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

October Precipitation in New Castle

In New Castle in October, the precipitation amount is 101 mm (4.0 in) spread over 12 days.

October Precipitation Trends in New Castle

The chart displays monthly precipitation patterns in New Castle, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In New Castle, October typically receives around 101 mm (4.0 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec79991209914012011293891029381
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in New Castle

In New Castle in October humidity is 76%. With an average temperature of 14°C (57°F), this humidity feels like a warm blanket wrapped around you, creating a heavy atmosphere that can make outdoor activities feel sluggish and stifling, urging travelers to seek shade and refreshment more frequently.

October Average Humidity in New Castle

This chart illustrates the average monthly humidity levels in New Castle, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in New Castle is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%86%84%79%82%79%70%69%76%88%87%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in New Castle

In New Castle in October, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in New Castle, you can refer to this Hourly UV Index in New Castle.

Maximum UV Index Levels in New Castle for October

The chart shows the monthly maximum UV Index (UVI) for New Castle in October, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In October, the maximum UV index in New Castle typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111098643
Data source: New Castle October UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How October Weather in New Castle Compares to Other Months

Weather in New Castle varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in New Castle, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in New Castle, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)78 mm (3.1 inches)87%moderate
February Weather0°C (33°F)99 mm (3.9 inches)85%moderate
March Weather5°C (42°F)120 mm (4.7 inches)86%high
April Weather11°C (51°F)99 mm (3.9 inches)84%very high
May Weather17°C (64°F)140 mm (5.5 inches)79%very high
June Weather22°C (72°F)120 mm (4.7 inches)82%extreme
July Weather24°C (76°F)112 mm (4.4 inches)79%very high
August Weather23°C (73°F)93 mm (3.7 inches)70%very high
September Weather20°C (69°F)89 mm (3.5 inches)69%very high
October Weather14°C (57°F)101 mm (4.0 inches)76%high
November Weather5°C (41°F)93 mm (3.7 inches)88%moderate
December Weather2°C (35°F)81 mm (3.2 inches)87%moderate

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