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March Weather in Louisville, United States

Last updated: June 24, 2025

In March, the average temperature in Louisville, United States hovers around 2°C (35°F). While you might experience a chilly minimum of -21°C (-5°F), the mercury can rise to a pleasant maximum of 23°C (73°F). Be prepared for some rain, as 62 mm (2.5 in) of precipitation is likely over 11 days, accompanied by an average humidity of a muggy 81%.

March Temperature in Louisville

In March in Louisville, the average temperature is 2°C (35°F). The maximum can reach 23°C (73°F), while the minimum can be as low as -21°C (-5°F). Travelers should be prepared for a wide range of temperatures, so layering is essential when visiting during this time.

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

The chart illustrates March temperature patterns in Louisville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Louisville, March typically has an average temperature of 2°C (35°F), with highs reaching up to 23°C (73°F) and lows dropping to around -21°C (-5°F).
JanFebMarAprMayJunJulAugSepOctNovDec262535425063686661443629
Data source: Temperature data for Louisville 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 Louisville

In Louisville in March, the precipitation amount is 62 mm (2.5 in), occurring over a span of 11 days.

March Precipitation Trends in Louisville

The chart displays monthly precipitation patterns in Louisville, 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 Louisville, March typically receives around 62 mm (2.5 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec2536636813474716842483020
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Louisville

In Louisville in March humidity is 81%. With an average temperature of 2°C (35°F), this humidity feels like a damp chill wrapping around you, making outdoor exploration quite uncomfortable and prompting you to seek warmth indoors rather than traveling extensively outside.

March Average Humidity in Louisville

This chart illustrates the average monthly humidity levels in Louisville, 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 Louisville is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%81%76%67%58%52%56%65%76%82%89%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Louisville

In Louisville 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 Louisville.

Maximum UV Index Levels in Louisville for March

The chart shows the monthly maximum UV Index (UVI) for Louisville 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 Louisville typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469111112121110754
Data source: Louisville 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 Louisville Compares to Other Months

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

This table compares monthly weather conditions in Louisville, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (26°F)25 mm (1.0 inches)88%moderate
February Weather-4°C (26°F)36 mm (1.4 inches)87%high
March Weather2°C (35°F)62 mm (2.5 inches)81%very high
April Weather5°C (42°F)68 mm (2.7 inches)76%extreme
May Weather10°C (50°F)134 mm (5.3 inches)66%extreme
June Weather17°C (63°F)74 mm (2.9 inches)58%extreme
July Weather20°C (68°F)71 mm (2.8 inches)52%extreme
August Weather19°C (67°F)67 mm (2.7 inches)56%extreme
September Weather16°C (61°F)42 mm (1.6 inches)65%very high
October Weather7°C (45°F)48 mm (1.9 inches)76%high
November Weather2°C (36°F)30 mm (1.2 inches)82%moderate
December Weather-2°C (29°F)19 mm (0.8 inches)89%moderate

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