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May Weather in Fossil, United States

Last updated: June 24, 2025

In May, the average temperature in Fossil, United States hovers around 14°C (57°F), with potential extremes ranging from a chilly -1°C (31°F) to a warm 32°C (90°F). Expect 33 mm (1.3 in) of precipitation spread over 6 days, while the air remains comfortably humid with an average humidity of 80%. 🌧️

May Temperature in Fossil

In May in Fossil, the average temperature is 14°C (57°F). Maximums can reach 32°C (90°F), while minimums can drop as low as -1°C (31°F). Travelers should be prepared for a range of temperatures, so packing layers is advisable.

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

The chart illustrates May temperature patterns in Fossil, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fossil, May typically has an average temperature of 14°C (57°F), with highs reaching up to 32°C (90°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec333441485765747363504134
Data source: Temperature data for Fossil 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 Fossil

In Fossil, in May, the precipitation amount is 33 mm (1.3 in) over the course of 6 days.

May Precipitation Trends in Fossil

The chart displays monthly precipitation patterns in Fossil, 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 Fossil, May typically receives around 33 mm (1.3 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec5168515133171721355254
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Fossil

In Fossil in May, humidity is 80%. With an average temperature of 14°C (57°F), this humidity feels like a warm, damp blanket wrapping around you, making travel uncomfortable and sticky, as sweat clings to your skin and the air feels heavy with moisture.

May Average Humidity in Fossil

This chart illustrates the average monthly humidity levels in Fossil, 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 Fossil is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%87%86%85%80%82%79%63%59%78%88%88%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Fossil

In Fossil in May, 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 Fossil.

Maximum UV Index Levels in Fossil for May

The chart shows the monthly maximum UV Index (UVI) for Fossil 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 Fossil typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24679101098532
Data source: Fossil 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 Fossil Compares to Other Months

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

This table compares monthly weather conditions in Fossil, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)51 mm (2.0 inches)86%low
February Weather1°C (35°F)68 mm (2.7 inches)87%moderate
March Weather5°C (41°F)51 mm (2.0 inches)86%high
April Weather9°C (48°F)51 mm (2.0 inches)85%high
May Weather14°C (57°F)33 mm (1.3 inches)80%very high
June Weather19°C (66°F)17 mm (0.7 inches)82%very high
July Weather23°C (74°F)1 mm (0.0 inches)78%very high
August Weather23°C (74°F)7 mm (0.3 inches)62%very high
September Weather17°C (63°F)21 mm (0.8 inches)59%very high
October Weather10°C (50°F)35 mm (1.4 inches)78%moderate
November Weather5°C (41°F)52 mm (2.0 inches)88%moderate
December Weather1°C (34°F)54 mm (2.1 inches)88%low

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