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May Weather in Rock Springs, United States

Last updated: June 24, 2025

In Rock Springs, United States, the average temperature in May hovers around 11°C (52°F). However, be prepared for a range of conditions, as temperatures can dip as low as -7°C (21°F) or soar to 28°C (84°F). Expect about 47 mm (1.9 in) of precipitation over 10 days, with an average humidity of 64%. Whether you're packing light layers or a raincoat, be ready for a mix of weather!

May Temperature in Rock Springs

In May in Rock Springs, the average temperature is 11°C (52°F). The maximum can reach 28°C (84°F), while the minimum can drop to as low as -7°C (21°F). Be prepared for a wide range of temperatures when traveling to Rock Springs this month.

May Weather in Rock Springs: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Rock Springs, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rock Springs, May typically has an average temperature of 11°C (52°F), with highs reaching up to 28°C (84°F) and lows dropping to around -7°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec182131415165737161433321
Data source: Temperature data for Rock Springs 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 Rock Springs

In Rock Springs in May, the precipitation amount is 47 mm (1.9 in) over a span of 10 days.

May Precipitation Trends in Rock Springs

The chart displays monthly precipitation patterns in Rock Springs, 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 Rock Springs, May typically receives around 47 mm (1.9 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec25264039471691020242424
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Rock Springs

In Rock Springs in May, humidity is 64%. With an average temperature of 11°C (52°F), this humidity feels like a cool, crisp embrace, making outdoor activities invigorating yet requiring light layers for comfort during travel.

May Average Humidity in Rock Springs

This chart illustrates the average monthly humidity levels in Rock Springs, 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 Rock Springs is approximately 64%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%93%85%73%64%57%45%41%50%70%84%90%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Rock Springs

In Rock Springs 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 Rock Springs.

Maximum UV Index Levels in Rock Springs for May

The chart shows the monthly maximum UV Index (UVI) for Rock Springs 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 Rock Springs typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46710111212119753
Data source: Rock Springs 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 Rock Springs Compares to Other Months

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

This table compares monthly weather conditions in Rock Springs, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (19°F)25 mm (1.0 inches)92%moderate
February Weather-6°C (21°F)26 mm (1.0 inches)93%high
March Weather-1°C (31°F)40 mm (1.6 inches)85%high
April Weather5°C (41°F)39 mm (1.6 inches)73%very high
May Weather11°C (52°F)47 mm (1.9 inches)64%extreme
June Weather18°C (66°F)16 mm (0.6 inches)57%extreme
July Weather23°C (73°F)9 mm (0.4 inches)45%extreme
August Weather21°C (71°F)10 mm (0.4 inches)41%extreme
September Weather16°C (61°F)20 mm (0.8 inches)50%very high
October Weather6°C (43°F)24 mm (0.9 inches)70%high
November Weather1°C (34°F)24 mm (0.9 inches)84%moderate
December Weather-6°C (22°F)24 mm (0.9 inches)90%moderate

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