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March Weather in Watertown, United States

Last updated: June 24, 2025

In March, the average temperature in Watertown, United States hovers around 12°C (53°F). However, be prepared for a range of extremes, as temperatures can dip as low as -8°C (18°F) and soar to 28°C (83°F). Expect about 176 mm (6.9 in) of precipitation over 14 days, contributing to an average humidity level of 85%.

March Temperature in Watertown

In March in Watertown, the average temperature is 12°C (53°F). The maximum can reach 28°C (83°F) and the minimum can be as low as -8°C (18°F). Travelers should be prepared for a broad range of temperatures and pack accordingly.

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

The chart illustrates March 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, March typically has an average temperature of 12°C (53°F), with highs reaching up to 28°C (83°F) and lows dropping to around -8°C (18°F).
JanFebMarAprMayJunJulAugSepOctNovDec414653597076807874634946
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.

March Precipitation in Watertown

In Watertown in March, the precipitation amount is 176 mm (6.9 in) over a period of 14 days.

March Precipitation Trends in Watertown

The chart displays monthly precipitation patterns in Watertown, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Watertown, March typically receives around 176 mm (6.9 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec10919017615112314913112413014081152
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Watertown

In Watertown in March, humidity is 85%. With an average temperature of 12°C (53°F), this humidity feels like a damp embrace, making travel somewhat uncomfortable as you navigate the thick, moist air that clings to your skin.

March Average Humidity in Watertown

This chart illustrates the average monthly humidity levels in Watertown, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Watertown is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%85%82%83%82%78%67%64%75%87%89%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Watertown

In Watertown in March, 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 March

The chart shows the monthly maximum UV Index (UVI) for Watertown in March, 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 March, the maximum UV index in Watertown typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710101111109753
Data source: Watertown March 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 March 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 March’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 March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)109 mm (4.3 inches)87%moderate
February Weather8°C (46°F)190 mm (7.5 inches)87%high
March Weather12°C (53°F)176 mm (6.9 inches)85%high
April Weather15°C (60°F)151 mm (5.9 inches)82%very high
May Weather21°C (70°F)123 mm (4.8 inches)83%very high
June Weather25°C (76°F)149 mm (5.9 inches)82%extreme
July Weather26°C (80°F)131 mm (5.1 inches)78%extreme
August Weather25°C (78°F)124 mm (4.9 inches)67%very high
September Weather23°C (74°F)130 mm (5.1 inches)64%very high
October Weather17°C (64°F)140 mm (5.5 inches)74%high
November Weather9°C (49°F)81 mm (3.2 inches)87%moderate
December Weather8°C (46°F)151 mm (6.0 inches)88%moderate

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