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May Weather in West Lafayette, United States

Last updated: June 24, 2025

In West Lafayette, United States, the average temperature in May hovers around 18°C (64°F). However, be prepared for a range that can swing from a chilly -2°C (29°F) to a sweltering 34°C (94°F). Expect some moisture in the air with an average humidity of 81% and a total precipitation of 152 mm (6.0 in) spread over 15 days. 🌧️ Make sure to pack accordingly!

May Temperature in West Lafayette

In May in West Lafayette, the average temperature is 18°C (64°F). Maximums can reach 34°C (94°F), while minimums can drop as low as -2°C (29°F). This climate offers a diverse range of experiences for travelers, so be sure to pack accordingly for fluctuating temperatures.

May Weather in West Lafayette: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in West Lafayette, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In West Lafayette, May typically has an average temperature of 18°C (64°F), with highs reaching up to 34°C (94°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec283142516473767469574135
Data source: Temperature data for West Lafayette 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.

May Precipitation in West Lafayette

In West Lafayette in May, the precipitation amount is 152 mm (6.0 in) over the course of 15 days.

May Precipitation Trends in West Lafayette

The chart displays monthly precipitation patterns in West Lafayette, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In West Lafayette, May typically receives around 152 mm (6.0 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec74771069715210099101651127562
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in West Lafayette

In West Lafayette in May, humidity is 81%. With an average temperature of 18°C (64°F), this humidity feels like a warm embrace, making travel both refreshing and slightly stifling at the same time.

May Average Humidity in West Lafayette

This chart illustrates the average monthly humidity levels in West Lafayette, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in West Lafayette is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%86%87%81%82%81%79%78%81%89%86%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in West Lafayette

In West Lafayette in May, 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 West Lafayette.

Maximum UV Index Levels in West Lafayette for May

The chart shows the monthly maximum UV Index (UVI) for West Lafayette in May, 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 May, the maximum UV index in West Lafayette typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111098642
Data source: West Lafayette May 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 May Weather in West Lafayette Compares to Other Months

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

This table compares monthly weather conditions in West Lafayette, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)74 mm (2.9 inches)85%moderate
February Weather-1°C (31°F)77 mm (3.0 inches)85%moderate
March Weather5°C (42°F)106 mm (4.2 inches)86%high
April Weather11°C (52°F)97 mm (3.8 inches)87%very high
May Weather18°C (64°F)152 mm (6.0 inches)81%very high
June Weather23°C (74°F)100 mm (3.9 inches)82%extreme
July Weather25°C (77°F)99 mm (3.9 inches)81%very high
August Weather23°C (74°F)101 mm (4.0 inches)79%very high
September Weather21°C (70°F)65 mm (2.6 inches)78%very high
October Weather14°C (57°F)112 mm (4.4 inches)81%high
November Weather5°C (41°F)75 mm (3.0 inches)89%moderate
December Weather2°C (35°F)62 mm (2.4 inches)86%low

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