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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 6°C (43°F). Temperatures can vary significantly, with a minimum plunge to -29°C (-19°F) and a maximum reaching up to 25°C (77°F). Expect about 60 mm (2.4 in) of precipitation over approximately 9 days, accompanied by an average humidity of 72%.

October Temperature in New Castle

In October in New Castle, the average temperature is 6°C (43°F). The maximum can reach 25°C (77°F), while the minimum can drop as low as -29°C (-19°F). This wide range of temperatures means that travelers should be prepared for both warm and cold conditions when visiting during this time.

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 6°C (43°F), with highs reaching up to 25°C (77°F) and lows dropping to around -29°C (-19°F).
JanFebMarAprMayJunJulAugSepOctNovDec212533395063706860433121
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 total precipitation amount is 60 mm (2.4 in), occurring over a span of 9 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 60 mm (2.4 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec557361484418131318604055
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 72%. With an average temperature of 6°C (43°F), this humidity feels like a chill that penetrates your clothes, making you feel uncomfortably cold and damp while traveling.

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 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%89%81%74%58%47%39%39%53%72%84%90%
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 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the 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 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469121213121210754
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-6°C (22°F)55 mm (2.2 inches)90%moderate
February Weather-4°C (25°F)73 mm (2.9 inches)89%high
March Weather1°C (33°F)61 mm (2.4 inches)81%very high
April Weather4°C (39°F)48 mm (1.9 inches)74%extreme
May Weather10°C (50°F)43 mm (1.7 inches)58%extreme
June Weather17°C (63°F)18 mm (0.7 inches)47%extreme
July Weather21°C (70°F)13 mm (0.5 inches)39%extreme
August Weather20°C (68°F)13 mm (0.5 inches)39%extreme
September Weather16°C (60°F)18 mm (0.7 inches)53%very high
October Weather6°C (43°F)60 mm (2.4 inches)72%high
November Weather0°C (32°F)39 mm (1.6 inches)84%moderate
December Weather-6°C (22°F)55 mm (2.2 inches)90%moderate

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