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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 2°C (36°F). Be prepared for a chill, as minimum temperatures can drop to -24°C (-11°F), while the maximum can reach up to 21°C (70°F). Expect a fair share of moisture, with 57 mm (2.3 in) of precipitation spread over 8 days. Additionally, the average humidity lingers at a brisk 85%, creating a chilly atmosphere throughout the month.

March Temperature in Watertown

In March in Watertown, the average temperature is 2°C (36°F). Maximums can reach 21°C (70°F), while minimums can drop as low as -24°C (-11°F). Travelers should be prepared for a wide 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 2°C (36°F), with highs reaching up to 21°C (70°F) and lows dropping to around -24°C (-11°F).
JanFebMarAprMayJunJulAugSepOctNovDec212335455970747165513629
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 57 mm (2.3 in) over a span of 8 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 57 mm (2.3 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec51495710312111310294991144345
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 2°C (36°F), this humidity feels like an icy blanket clinging to your skin, making travel challenging as the cold dampness seeps into your bones and fogs your breath.

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.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%85%85%78%80%78%76%79%83%88%82%
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 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 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 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34589101098532
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 Weather-6°C (22°F)51 mm (2.0 inches)85%moderate
February Weather-5°C (23°F)49 mm (1.9 inches)85%moderate
March Weather2°C (36°F)57 mm (2.3 inches)85%moderate
April Weather7°C (46°F)103 mm (4.1 inches)85%very high
May Weather15°C (59°F)121 mm (4.8 inches)78%very high
June Weather21°C (70°F)113 mm (4.5 inches)80%very high
July Weather23°C (74°F)102 mm (4.0 inches)78%very high
August Weather22°C (71°F)94 mm (3.7 inches)76%very high
September Weather18°C (65°F)99 mm (3.9 inches)79%very high
October Weather11°C (51°F)114 mm (4.5 inches)83%moderate
November Weather2°C (37°F)43 mm (1.7 inches)88%moderate
December Weather-2°C (30°F)45 mm (1.8 inches)81%low

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