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July Weather in Janesville, United States

Last updated: June 24, 2025

In July, the average temperature in Janesville, United States hovers around 24°C (75°F), with a comfortable range where the minimum dips to 12°C (54°F) and the maximum climbs to 34°C (94°F). Expect some rain, as 77 mm (3.0 in) of precipitation typically falls over approximately 11 days. The air tends to be quite humid, with an average humidity level of 78%, making it a sultry experience overall.

July Temperature in Janesville

In July in Janesville, the average temperature is 24°C (75°F). Maximums can reach 34°C (94°F), while minimums can go as low as 12°C (54°F). It's a great time to explore outdoor activities and enjoy pleasant weather.

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

The chart illustrates July temperature patterns in Janesville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Janesville, July typically has an average temperature of 24°C (75°F), with highs reaching up to 34°C (94°F) and lows dropping to around 12°C (54°F).
JanFebMarAprMayJunJulAugSepOctNovDec222337466071757266523730
Data source: Temperature data for Janesville 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 Janesville

In Janesville in July, the precipitation amount is 77 mm (3.0 in) over the course of 11 days.

July Precipitation Trends in Janesville

The chart displays monthly precipitation patterns in Janesville, 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 Janesville, July typically receives around 77 mm (3.0 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec58545910213411077941101114550
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in Janesville

In Janesville in July humidity is 78%. With an average temperature of 24°C (75°F), this humidity feels like a warm blanket wrapping around you, making travel sticky and heavy but also inviting, as long as you're prepared with plenty of water and light clothing.

July Average Humidity in Janesville

This chart illustrates the average monthly humidity levels in Janesville, 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 Janesville is approximately 78%, 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 July generated using information from the Copernicus Climate Change Service.

July UV Index in Janesville

In Janesville in July, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Janesville.

Maximum UV Index Levels in Janesville for July

The chart shows the monthly maximum UV Index (UVI) for Janesville 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 Janesville typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689101098532
Data source: Janesville 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 Janesville Compares to Other Months

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

This table compares monthly weather conditions in Janesville, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)58 mm (2.3 inches)85%moderate
February Weather-5°C (24°F)54 mm (2.1 inches)85%moderate
March Weather3°C (37°F)59 mm (2.3 inches)85%high
April Weather8°C (47°F)102 mm (4.0 inches)85%very high
May Weather15°C (60°F)133 mm (5.3 inches)78%very high
June Weather22°C (71°F)110 mm (4.3 inches)80%very high
July Weather24°C (75°F)77 mm (3.0 inches)78%very high
August Weather22°C (72°F)94 mm (3.7 inches)76%very high
September Weather19°C (66°F)110 mm (4.3 inches)79%very high
October Weather11°C (52°F)111 mm (4.4 inches)83%moderate
November Weather3°C (37°F)45 mm (1.8 inches)88%moderate
December Weather-1°C (30°F)50 mm (2.0 inches)81%low

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