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March Weather in Onalaska, United States

Last updated: June 24, 2025

In Onalaska, United States, the average temperature in March hovers around 17°C (64°F). However, be prepared for fluctuations, as temperatures can dip to a chilly -1°C (30°F) or rise to a warm 30°C (86°F). During this month, expect a total precipitation of 97 mm (3.8 in) spread over approximately 11 days, contributing to an average humidity of 78%.

March Temperature in Onalaska

In March in Onalaska, the average temperature is 17°C (64°F). Maximums can reach 30°C (86°F) and minimums can be as low as -1°C (30°F). Be prepared for a wide range of temperatures and pack accordingly for your travels.

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

The chart illustrates March temperature patterns in Onalaska, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Onalaska, March typically has an average temperature of 17°C (64°F), with highs reaching up to 30°C (86°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec525563687681838380716056
Data source: Temperature data for Onalaska 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 Onalaska

In Onalaska in March, the total precipitation amount is 97 mm (3.8 in) over the course of 11 days.

March Precipitation Trends in Onalaska

The chart displays monthly precipitation patterns in Onalaska, 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 Onalaska, March typically receives around 97 mm (3.8 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec107112971151741359015213811771111
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Onalaska

In Onalaska in March humidity is 78%. With average temperature 17°C (64°F), this humidity feels like a warm embrace, making travel feel sticky and heavy, as the air wraps around you and the moments spent outdoors leave you longing for a cool respite.

March Average Humidity in Onalaska

This chart illustrates the average monthly humidity levels in Onalaska, 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 Onalaska is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%80%78%79%81%77%71%67%69%73%82%87%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Onalaska

In Onalaska in March, 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 Onalaska.

Maximum UV Index Levels in Onalaska for March

The chart shows the monthly maximum UV Index (UVI) for Onalaska 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 Onalaska typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589111111121110865
Data source: Onalaska 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 Onalaska Compares to Other Months

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

This table compares monthly weather conditions in Onalaska, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather11°C (52°F)107 mm (4.2 inches)79%moderate
February Weather13°C (55°F)112 mm (4.4 inches)80%very high
March Weather17°C (64°F)97 mm (3.8 inches)78%very high
April Weather20°C (68°F)115 mm (4.5 inches)79%extreme
May Weather24°C (76°F)174 mm (6.8 inches)81%extreme
June Weather27°C (82°F)135 mm (5.3 inches)77%extreme
July Weather28°C (84°F)90 mm (3.5 inches)71%extreme
August Weather29°C (84°F)152 mm (6.0 inches)67%extreme
September Weather27°C (80°F)137 mm (5.4 inches)69%very high
October Weather22°C (71°F)117 mm (4.6 inches)73%very high
November Weather16°C (60°F)71 mm (2.8 inches)82%high
December Weather13°C (56°F)111 mm (4.4 inches)87%moderate

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