October Weather in Watertown, United States

Last updated: June 24, 2025

In October, the average temperature in Watertown, United States hovers around 17°C (64°F), offering a pleasant climate. However, temperatures can swing from a chilly 0°C (31°F) to a sweltering 36°C (98°F). Expect about 140 mm (5.5 in) of precipitation over 10 days, contributing to an average humidity level of 74%. This combination creates a unique atmosphere, perfect for both outdoor adventures and cozy indoor days!

October Temperature in Watertown

In October in Watertown, the average temperature is 17°C (64°F), with maximums reaching up to 36°C (98°F) and minimums dropping as low as 0°C (31°F). It's a great time to visit for those looking to experience a mix of warm days and cool 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 17°C (64°F), with highs reaching up to 36°C (98°F) and lows dropping to around 0°C (31°F).

Data source: Temperature data for Watertown generated using information from the Copernicus Climate Change Service.

October Precipitation in Watertown

In Watertown in October, the total precipitation amount is 140 mm (5.5 in) spread over a period 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 140 mm (5.5 inches) of precipitation spread over approximately 10 days.

Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

October Humidity in Watertown

In Watertown in October, humidity is 74%. With an average temperature of 17°C (64°F), this humidity feels like a warm, sticky embrace that can make outdoor activities somewhat uncomfortable, especially for travelers who enjoy exploring. It's advisable to stay hydrated and take frequent breaks in the shade to fully enjoy your adventures.

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 74%, offering insight into how humid the weather typically is during this month.

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 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 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 7, which falls under the high exposure category.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (41°F)	109 mm (4.3 inches)	87%	moderate
February Weather	8°C (46°F)	190 mm (7.5 inches)	87%	high
March Weather	12°C (53°F)	176 mm (6.9 inches)	85%	high
April Weather	15°C (60°F)	151 mm (5.9 inches)	82%	very high
May Weather	21°C (70°F)	123 mm (4.8 inches)	83%	very high
June Weather	25°C (76°F)	149 mm (5.9 inches)	82%	extreme
July Weather	26°C (80°F)	131 mm (5.1 inches)	78%	extreme
August Weather	25°C (78°F)	124 mm (4.9 inches)	67%	very high
September Weather	23°C (74°F)	130 mm (5.1 inches)	64%	very high
October Weather	17°C (64°F)	140 mm (5.5 inches)	74%	high
November Weather	9°C (49°F)	81 mm (3.2 inches)	87%	moderate
December Weather	8°C (46°F)	151 mm (6.0 inches)	88%	moderate