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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 5°C (42°F), with extremes ranging from a chilly -20°C (-4°F) to a warm 29°C (84°F). The region experiences an average precipitation of 99 mm (3.9 in) spread over 10 days, contributing to an average humidity level of 73%. Stay prepared for fluctuating weather as you enjoy your time in this lively locale!

March Temperature in Louisville

In March in Louisville, the average temperature is 5°C (42°F). Maximum temperatures can reach 29°C (84°F) while minimum temperatures can drop as low as -20°C (-4°F). Be prepared for a wide range of weather conditions if you plan to visit 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 5°C (42°F), with highs reaching up to 29°C (84°F) and lows dropping to around -20°C (-4°F).
JanFebMarAprMayJunJulAugSepOctNovDec262642516377787570534132
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 total precipitation amount is 99 mm (3.9 in) spread over a period of 10 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 99 mm (3.9 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec333099521391218992881313037
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 73%. With an average temperature of 5°C (42°F), this humidity feels like a damp chill that seeps into your bones, making travel feel less invigorating and more like a struggle against the cold, damp air.

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 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%80%73%75%78%82%83%81%75%75%82%83%
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 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Louisville, you can refer to this 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 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356810101098642
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)33 mm (1.3 inches)76%moderate
February Weather-3°C (26°F)30 mm (1.2 inches)80%moderate
March Weather5°C (42°F)99 mm (3.9 inches)73%high
April Weather10°C (51°F)52 mm (2.0 inches)74%very high
May Weather17°C (64°F)139 mm (5.5 inches)78%very high
June Weather25°C (77°F)121 mm (4.8 inches)82%very high
July Weather26°C (79°F)89 mm (3.5 inches)83%very high
August Weather24°C (75°F)92 mm (3.6 inches)80%very high
September Weather21°C (70°F)88 mm (3.5 inches)75%very high
October Weather12°C (53°F)131 mm (5.2 inches)75%high
November Weather5°C (41°F)30 mm (1.2 inches)82%moderate
December Weather0°C (32°F)37 mm (1.5 inches)83%low

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