nomadseason

May Weather in Riverton, United States

Last updated: June 24, 2025

In May, the average temperature in Riverton, United States hovers around 11°C (52°F). While you might experience a chilly minimum of -9°C (16°F), be prepared for the occasional warm days with a maximum of 31°C (87°F). Rainfall is quite common, with 80 mm (3.2 in) expected over 11 days, contributing to an average humidity of 69%. Get ready for a varied and dynamic climate!

May Temperature in Riverton

In May in Riverton, the average temperature is 11°C (52°F), with maximums reaching 31°C (87°F) and minimums dropping as low as -9°C (16°F). It’s important to pack accordingly for a wide range of weather conditions when traveling during this time.

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

The chart illustrates May temperature patterns in Riverton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Riverton, May typically has an average temperature of 11°C (52°F), with highs reaching up to 31°C (87°F) and lows dropping to around -9°C (16°F).
JanFebMarAprMayJunJulAugSepOctNovDec212336415265737061433424
Data source: Temperature data for Riverton generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Riverton

In Riverton in May, the precipitation amount is 80 mm (3.2 in) spread over 11 days.

May Precipitation Trends in Riverton

The chart displays monthly precipitation patterns in Riverton, 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 Riverton, May typically receives around 80 mm (3.2 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec152338618031212327311716
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Riverton

In Riverton in May, humidity is 69%. With an average temperature of 11°C (52°F), this humidity feels like a cool, damp embrace that can make outdoor activities and sightseeing slightly uncomfortable without proper layering, urging travelers to stay hydrated while enjoying the crisp air.

May Average Humidity in Riverton

This chart illustrates the average monthly humidity levels in Riverton, 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 Riverton is approximately 69%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%89%82%72%69%67%65%59%59%69%83%89%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Riverton

In Riverton 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 Riverton.

Maximum UV Index Levels in Riverton for May

The chart shows the monthly maximum UV Index (UVI) for Riverton 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 Riverton typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111109643
Data source: Riverton 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 Riverton Compares to Other Months

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

This table compares monthly weather conditions in Riverton, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)15 mm (0.6 inches)90%moderate
February Weather-5°C (23°F)23 mm (0.9 inches)89%moderate
March Weather2°C (36°F)38 mm (1.5 inches)82%high
April Weather5°C (42°F)61 mm (2.4 inches)72%very high
May Weather11°C (52°F)80 mm (3.2 inches)69%very high
June Weather18°C (65°F)30 mm (1.2 inches)67%extreme
July Weather23°C (73°F)21 mm (0.8 inches)65%extreme
August Weather21°C (70°F)23 mm (0.9 inches)59%very high
September Weather16°C (61°F)27 mm (1.1 inches)59%very high
October Weather6°C (43°F)31 mm (1.2 inches)69%high
November Weather1°C (35°F)17 mm (0.7 inches)83%moderate
December Weather-4°C (24°F)16 mm (0.6 inches)89%moderate

Compare Riverton's Climate with Cities Worldwide