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July Weather in Lowell, United States

Last updated: June 24, 2025

In July, the average temperature in Lowell, United States hovers around 26°C (79°F). Expect a range from a cool 15°C (60°F) to a sweltering 37°C (99°F). With an average humidity of 78%, you might feel the heat more intensely. Be prepared for 96 mm (3.8 in) of rain spread over about 11 days, ensuring a mix of sunshine and showers throughout the month.

July Temperature in Lowell

In July in Lowell, the average temperature is 26°C (79°F). Maximums can reach 37°C (99°F) and minimums can be as low as 15°C (60°F). This makes it an ideal time for travelers seeking warm weather and plenty of outdoor activities.

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

The chart illustrates July temperature patterns in Lowell, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lowell, July typically has an average temperature of 26°C (79°F), with highs reaching up to 37°C (99°F) and lows dropping to around 15°C (60°F).
JanFebMarAprMayJunJulAugSepOctNovDec374051576776797773604843
Data source: Temperature data for Lowell 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 Lowell

In Lowell in July, the precipitation amount is 96 mm (3.8 in) spread over 11 days, resulting in a significant accumulation of rainfall.

July Precipitation Trends in Lowell

The chart displays monthly precipitation patterns in Lowell, 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 Lowell, July typically receives around 96 mm (3.8 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec84961451771759496151701606869
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in Lowell

In Lowell in July, humidity is 78%. With an average temperature of 26°C (79°F), this humidity feels like a heavy blanket wrapping around you, making travel a bit sluggish as the air hangs thick, leaving you in need of frequent breaks to hydrate and find shade.

July Average Humidity in Lowell

This chart illustrates the average monthly humidity levels in Lowell, 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 Lowell is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%78%76%78%83%83%78%68%64%70%83%87%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Lowell

In Lowell in July, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Lowell.

Maximum UV Index Levels in Lowell for July

The chart shows the monthly maximum UV Index (UVI) for Lowell 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 Lowell typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710101111109753
Data source: Lowell 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 Lowell Compares to Other Months

Weather in Lowell varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in Lowell, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Lowell, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)84 mm (3.3 inches)81%moderate
February Weather5°C (40°F)96 mm (3.8 inches)78%high
March Weather11°C (52°F)145 mm (5.7 inches)76%high
April Weather14°C (57°F)177 mm (7.0 inches)78%very high
May Weather19°C (67°F)175 mm (6.9 inches)83%very high
June Weather24°C (76°F)94 mm (3.7 inches)83%extreme
July Weather26°C (79°F)96 mm (3.8 inches)78%extreme
August Weather25°C (77°F)151 mm (5.9 inches)68%very high
September Weather23°C (73°F)70 mm (2.8 inches)64%very high
October Weather15°C (60°F)160 mm (6.3 inches)70%high
November Weather9°C (48°F)68 mm (2.7 inches)83%moderate
December Weather6°C (43°F)69 mm (2.7 inches)87%moderate

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