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May Weather in Stephenville, United States

Last updated: June 24, 2025

In May, the average temperature in Stephenville, United States hovers around 24°C (75°F), making it a pleasant time to visit. However, temperatures can range from a cool 7°C (46°F) to a sweltering 38°C (100°F), so be prepared for fluctuations. Expect about 109 mm (4.3 in) of precipitation over 11 days, with an average humidity of 80%, adding a touch of tropical feel to your stay.

May Temperature in Stephenville

In May in Stephenville, the average temperature is 24°C (75°F). Maximums can reach 38°C (100°F), and minimums can be as low as 7°C (46°F). This variation offers travelers a mix of warm and cool experiences, making it an ideal time to explore the region while packing layers for changing conditions.

May Weather in Stephenville: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Stephenville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Stephenville, May typically has an average temperature of 24°C (75°F), with highs reaching up to 38°C (100°F) and lows dropping to around 7°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec474960667482858578675651
Data source: Temperature data for Stephenville 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 Stephenville

In Stephenville in May, the precipitation amount is 109 mm (4.3 in), occurring over a span of 11 days.

May Precipitation Trends in Stephenville

The chart displays monthly precipitation patterns in Stephenville, 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 Stephenville, May typically receives around 109 mm (4.3 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec42708273109644373861003737
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Stephenville

In Stephenville in May humidity is 80%. With an average temperature of 24°C (75°F), this humidity feels like a warm, sticky blanket enveloping you, making travel slightly uncomfortable as sweat clings to your skin and the air feels thick, urging you to seek shade and hydration frequently.

May Average Humidity in Stephenville

This chart illustrates the average monthly humidity levels in Stephenville, 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 Stephenville is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%76%74%75%80%80%75%67%64%70%82%85%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Stephenville

In Stephenville in May, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Stephenville.

Maximum UV Index Levels in Stephenville for May

The chart shows the monthly maximum UV Index (UVI) for Stephenville 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 Stephenville typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478101111111110864
Data source: Stephenville 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 Stephenville Compares to Other Months

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

This table compares monthly weather conditions in Stephenville, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)41 mm (1.6 inches)77%moderate
February Weather9°C (49°F)69 mm (2.7 inches)76%high
March Weather16°C (60°F)82 mm (3.2 inches)74%very high
April Weather19°C (66°F)73 mm (2.9 inches)75%very high
May Weather24°C (75°F)109 mm (4.3 inches)80%extreme
June Weather28°C (82°F)64 mm (2.5 inches)80%extreme
July Weather30°C (86°F)43 mm (1.7 inches)75%extreme
August Weather29°C (85°F)73 mm (2.9 inches)67%extreme
September Weather26°C (79°F)86 mm (3.4 inches)64%very high
October Weather20°C (67°F)100 mm (3.9 inches)70%very high
November Weather14°C (57°F)37 mm (1.5 inches)82%high
December Weather11°C (52°F)37 mm (1.5 inches)85%moderate

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