nomadseason

March Weather in Janesville, United States

Last updated: June 24, 2025

In Janesville, United States, the average temperature in March hovers around 2°C (37°F). Be prepared for a chilly climate where temperatures can plunge as low as -17°C (1°F), while they may rise to a maximum of 20°C (68°F). Expect 85 mm (3.4 in) of precipitation spread across 12 days, with humidity levels reaching an average of 86%. Embrace the unique weather as you explore!

March Temperature in Janesville

In March in Janesville, the average temperature is 2°C (37°F). Maximum temperatures can reach 20°C (68°F), while minimums can drop as low as -17°C (1°F). Travelers should be prepared for a wide range of temperatures and pack accordingly to enjoy their visit comfortably.

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

The chart illustrates March 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, March typically has an average temperature of 2°C (37°F), with highs reaching up to 20°C (68°F) and lows dropping to around -17°C (1°F).
JanFebMarAprMayJunJulAugSepOctNovDec313236465466747263504030
Data source: Temperature data for Janesville generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

March Precipitation in Janesville

In Janesville in March, the precipitation amount is 85 mm (3.4 in) over the course of 12 days.

March Precipitation Trends in Janesville

The chart displays monthly precipitation patterns in Janesville, 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 Janesville, March typically receives around 85 mm (3.4 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec102110854344107819344775
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

March Humidity in Janesville

In Janesville in March, humidity is 86%. With an average temperature of 2°C (37°F), this humidity feels like a chilly dampness that clings to your clothes and makes outdoor activities quite uncomfortable for traveling.

March Average Humidity in Janesville

This chart illustrates the average monthly humidity levels in Janesville, 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 Janesville is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%87%86%83%72%67%56%42%46%67%86%86%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Janesville

In Janesville in March, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Janesville.

Maximum UV Index Levels in Janesville for March

The chart shows the monthly maximum UV Index (UVI) for Janesville 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 Janesville typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec4589111211119743
Data source: Janesville 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 Janesville Compares to Other Months

Weather in Janesville varies notably across the year, with each month offering distinct climate conditions. This page compares March’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 March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)102 mm (4.0 inches)86%moderate
February Weather0°C (32°F)110 mm (4.3 inches)87%moderate
March Weather2°C (37°F)85 mm (3.4 inches)86%very high
April Weather8°C (46°F)43 mm (1.7 inches)83%very high
May Weather12°C (55°F)44 mm (1.7 inches)72%extreme
June Weather19°C (66°F)10 mm (0.4 inches)67%extreme
July Weather23°C (74°F)7 mm (0.3 inches)56%extreme
August Weather22°C (72°F)8 mm (0.3 inches)42%extreme
September Weather17°C (63°F)19 mm (0.7 inches)46%very high
October Weather10°C (50°F)34 mm (1.3 inches)67%high
November Weather4°C (40°F)47 mm (1.8 inches)86%moderate
December Weather-1°C (31°F)75 mm (3.0 inches)86%moderate

Compare Janesville's Climate with Cities Worldwide