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July Weather in Watertown, United States

Last updated: June 24, 2025

In July, the average temperature in Watertown, United States is a comfortable 22°C (72°F). Expect a range with minimums dipping to 13°C (56°F) and peak highs reaching 32°C (90°F). During this period, 145 mm (5.7 in) of precipitation can be expected over 14 days, contributing to an average humidity of 78%.

July Temperature in Watertown

In July in Watertown, the average temperature is 22°C (72°F). Maximums can reach 32°C (90°F), and minimums can drop as low as 13°C (56°F). This moderate climate makes it an ideal time for outdoor adventures and sightseeing.

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

The chart illustrates July 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, July typically has an average temperature of 22°C (72°F), with highs reaching up to 32°C (90°F) and lows dropping to around 13°C (56°F).
JanFebMarAprMayJunJulAugSepOctNovDec232532435565727063523930
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.

July Precipitation in Watertown

In Watertown in July, the total precipitation amount is 145 mm (5.7 in) over a span of 14 days.

July Precipitation Trends in Watertown

The chart displays monthly precipitation patterns in Watertown, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Watertown, July typically receives around 145 mm (5.7 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec9388861231039714510878160127108
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in Watertown

In Watertown in July, humidity is 78%. With an average temperature of 22°C (72°F), this humidity feels like a warm blanket wrapped around you, making outdoor exploration a bit stifling but ultimately rewarding as you bask in the vibrant atmosphere.

July Average Humidity in Watertown

This chart illustrates the average monthly humidity levels in Watertown, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Watertown is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%87%88%82%79%78%76%78%84%89%86%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Watertown

In Watertown in July, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Watertown.

Maximum UV Index Levels in Watertown for July

The chart shows the monthly maximum UV Index (UVI) for Watertown in July, 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 July, the maximum UV index in Watertown typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec246899997532
Data source: Watertown July 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 July 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 July’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 July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (23°F)93 mm (3.7 inches)90%low
February Weather-4°C (25°F)88 mm (3.5 inches)90%moderate
March Weather0°C (32°F)86 mm (3.4 inches)87%high
April Weather6°C (43°F)123 mm (4.9 inches)88%very high
May Weather13°C (56°F)103 mm (4.1 inches)82%very high
June Weather18°C (65°F)97 mm (3.8 inches)79%very high
July Weather22°C (72°F)145 mm (5.7 inches)78%very high
August Weather21°C (70°F)107 mm (4.2 inches)76%very high
September Weather17°C (63°F)78 mm (3.1 inches)78%high
October Weather11°C (53°F)160 mm (6.3 inches)84%moderate
November Weather4°C (39°F)127 mm (5.0 inches)89%moderate
December Weather-1°C (30°F)108 mm (4.2 inches)86%low

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