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October Weather in Watertown, United States

Last updated: June 24, 2025

In October, the average temperature in Watertown, United States hovers around 7°C (46°F). However, temperatures can be quite variable, ranging from a chilly -12°C (10°F) to a warm 28°C (82°F). Expect 80 mm (3.1 in) of precipitation spread over 9 days, contributing to an average humidity level of 82%.

October Temperature in Watertown

In October in Watertown, the average temperature is 7°C (46°F). Maximum temperatures can reach 28°C (82°F), while the minimum can drop as low as -12°C (10°F). Be prepared for a wide range of temperatures when traveling during this time.

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 7°C (46°F), with highs reaching up to 28°C (82°F) and lows dropping to around -12°C (10°F).
JanFebMarAprMayJunJulAugSepOctNovDec151430405670736962453223
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 80 mm (3.1 in) spread over 9 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 80 mm (3.1 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec2217486591848111384802533
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 82%. With an average temperature of 7°C (46°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and necessitating extra layers to stay warm and dry.

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 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%89%81%82%76%81%82%83%82%82%87%84%
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 reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check 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 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3567910998532
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 Weather-10°C (15°F)22 mm (0.9 inches)85%moderate
February Weather-10°C (14°F)17 mm (0.7 inches)89%moderate
March Weather-1°C (31°F)48 mm (1.9 inches)81%high
April Weather5°C (41°F)65 mm (2.6 inches)82%high
May Weather13°C (56°F)90 mm (3.6 inches)76%very high
June Weather21°C (70°F)84 mm (3.3 inches)81%very high
July Weather23°C (73°F)81 mm (3.2 inches)82%very high
August Weather21°C (70°F)113 mm (4.4 inches)83%very high
September Weather17°C (62°F)84 mm (3.3 inches)82%very high
October Weather7°C (46°F)80 mm (3.1 inches)82%moderate
November Weather0°C (33°F)25 mm (1.0 inches)87%moderate
December Weather-5°C (23°F)33 mm (1.3 inches)84%low

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