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October Weather in Watertown, United States

Last updated: June 24, 2025

In October, the average temperature in Watertown, United States is a pleasant 23°C (74°F). However, be prepared for a range in temperatures, with a minimum as low as 5°C (41°F) and a maximum reaching 35°C (96°F). Expect about 65 mm (2.6 in) of precipitation over 10 days, contributing to an average humidity of 77%.

October Temperature in Watertown

In October in Watertown, the average temperature is 23°C (74°F), with maximums reaching up to 35°C (96°F) and minimums dropping as low as 5°C (41°F). This diverse temperature range makes Watertown an ideal destination for travelers seeking both warm days and cooler evenings.

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

The chart illustrates October temperature patterns in Watertown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Watertown, October typically has an average temperature of 23°C (74°F), with highs reaching up to 35°C (96°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec556164697679818179746258
Data source: Temperature data for Watertown 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 Watertown

In Watertown in October, the precipitation amount is 65 mm (2.6 in) over a span of 10 days.

October Precipitation Trends in Watertown

The chart displays monthly precipitation patterns in Watertown, 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 Watertown, October typically receives around 65 mm (2.6 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec54733675761581751841406564103
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Watertown

In Watertown in October, humidity is 77%. With an average temperature of 23°C (74°F), this humidity feels like being enveloped in a warm, sticky blanket, making travel somewhat uncomfortable and requiring frequent hydration breaks to enjoy the sights without feeling overheated.

October Average Humidity in Watertown

This chart illustrates the average monthly humidity levels in Watertown, 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 Watertown is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%82%80%76%73%74%80%79%83%77%84%88%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Watertown

In Watertown in October, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Watertown.

Maximum UV Index Levels in Watertown for October

The chart shows the monthly maximum UV Index (UVI) for Watertown 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 Watertown typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec579101111111110865
Data source: Watertown 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 Watertown Compares to Other Months

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

This table compares monthly weather conditions in Watertown, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather13°C (55°F)54 mm (2.1 inches)85%moderate
February Weather16°C (61°F)73 mm (2.9 inches)82%high
March Weather18°C (65°F)36 mm (1.4 inches)80%very high
April Weather21°C (70°F)75 mm (3.0 inches)76%very high
May Weather24°C (76°F)76 mm (3.0 inches)73%extreme
June Weather26°C (80°F)158 mm (6.2 inches)74%extreme
July Weather27°C (81°F)175 mm (6.9 inches)80%extreme
August Weather27°C (81°F)184 mm (7.2 inches)79%extreme
September Weather26°C (80°F)140 mm (5.5 inches)83%very high
October Weather23°C (74°F)65 mm (2.6 inches)77%very high
November Weather17°C (62°F)64 mm (2.5 inches)84%high
December Weather14°C (58°F)103 mm (4.1 inches)88%moderate

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