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October Weather in Mendham, United States

Last updated: June 24, 2025

The average temperature in Mendham, United States during October hovers around 15°C (59°F). While the minimum can dip to 0°C (33°F), it can also soar to a maximum of 34°C (93°F). Expect around 142 mm (5.6 in) of precipitation over approximately 10 days, with an average humidity level of 74%. Stay prepared for varied weather conditions!

October Temperature in Mendham

In October in Mendham, the average temperature is 15°C (59°F). Maximum temperatures can reach as high as 34°C (93°F), while minimums can drop to as low as 0°C (33°F). This varied climate makes Mendham an ideal destination for travelers seeking diverse weather experiences.

October Weather in Mendham: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Mendham, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mendham, October typically has an average temperature of 15°C (59°F), with highs reaching up to 34°C (93°F) and lows dropping to around 0°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec333641516171777568594437
Data source: Temperature data for Mendham 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 Mendham

In Mendham in October, the total precipitation amount is 142 mm (5.6 in) over the course of 10 days.

October Precipitation Trends in Mendham

The chart displays monthly precipitation patterns in Mendham, 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 Mendham, October typically receives around 142 mm (5.6 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec7010410311613510614213610114286113
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Mendham

In Mendham in October, humidity is 74%. With an average temperature of 15°C (59°F), this humidity feels like traveling through a warm, sticky blanket that clings to your skin, making outdoor activities a bit uncomfortable and prompting you to seek out shaded areas or cool breezes.

October Average Humidity in Mendham

This chart illustrates the average monthly humidity levels in Mendham, 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 Mendham is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%81%78%70%69%62%65%68%74%82%80%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Mendham

In Mendham 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 Mendham, you can refer to this Hourly UV Index in Mendham.

Maximum UV Index Levels in Mendham for October

The chart shows the monthly maximum UV Index (UVI) for Mendham 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 Mendham typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356810101098642
Data source: Mendham 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 Mendham Compares to Other Months

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

This table compares monthly weather conditions in Mendham, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)70 mm (2.7 inches)84%moderate
February Weather2°C (36°F)104 mm (4.1 inches)82%moderate
March Weather5°C (41°F)103 mm (4.1 inches)81%high
April Weather11°C (52°F)116 mm (4.6 inches)78%very high
May Weather16°C (62°F)135 mm (5.3 inches)69%very high
June Weather21°C (71°F)106 mm (4.2 inches)69%very high
July Weather25°C (77°F)142 mm (5.6 inches)62%very high
August Weather24°C (75°F)136 mm (5.4 inches)65%very high
September Weather20°C (69°F)101 mm (4.0 inches)68%very high
October Weather15°C (59°F)142 mm (5.6 inches)74%high
November Weather7°C (44°F)86 mm (3.4 inches)82%moderate
December Weather3°C (37°F)113 mm (4.4 inches)80%low

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