May Weather in Harlowton, United States

Last updated: June 24, 2025

In May, the average temperature in Harlowton, United States hovers around 10°C (51°F), offering a cooling respite during the year. Temperatures can dip to a chilly -4°C (25°F) or soar to a pleasant 28°C (82°F). Rainfall is expected, with approximately 67 mm (2.6 in) over 14 days, contributing to a notable average humidity of 75%—perfect for those who enjoy a lush, green environment!

May Temperature in Harlowton

In May in Harlowton, the average temperature is 10°C (51°F). Maximums can reach 28°C (82°F), while minimums can drop as low as -4°C (25°F). Expect a varied climate ideal for layering your travel wardrobe.

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

The chart illustrates May temperature patterns in Harlowton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harlowton, May typically has an average temperature of 10°C (51°F), with highs reaching up to 28°C (82°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec241832395061696757423326
Data source: Temperature data for Harlowton 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 Harlowton

In Harlowton in May, the precipitation amount is 67 mm (2.6 in) spread over 14 days.

May Precipitation Trends in Harlowton

The chart displays monthly precipitation patterns in Harlowton, 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 Harlowton, May typically receives around 67 mm (2.6 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec194126636762182238332625
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Harlowton

In Harlowton in May humidity is 75%. With an average temperature of 10°C (51°F), this humidity feels like a heavy blanket wrapping around you, making every step outside feel laborious and damp, perfect for cozy indoor exploration but challenging for outdoor adventures.

May Average Humidity in Harlowton

This chart illustrates the average monthly humidity levels in Harlowton, 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 Harlowton is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%85%77%72%75%78%79%76%67%69%78%85%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Harlowton

In Harlowton 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 Harlowton.

Maximum UV Index Levels in Harlowton for May

The chart shows the monthly maximum UV Index (UVI) for Harlowton 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 Harlowton typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec246891010108532
Data source: Harlowton 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 Harlowton Compares to Other Months

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

This table compares monthly weather conditions in Harlowton, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (24°F)19 mm (0.8 inches)81%low
February Weather-8°C (19°F)41 mm (1.6 inches)85%moderate
March Weather0°C (32°F)26 mm (1.0 inches)77%high
April Weather4°C (39°F)63 mm (2.5 inches)72%very high
May Weather10°C (51°F)67 mm (2.6 inches)75%very high
June Weather16°C (61°F)62 mm (2.4 inches)78%very high
July Weather21°C (69°F)17 mm (0.7 inches)79%very high
August Weather20°C (67°F)21 mm (0.8 inches)76%very high
September Weather14°C (57°F)38 mm (1.5 inches)67%very high
October Weather5°C (42°F)33 mm (1.3 inches)69%moderate
November Weather1°C (33°F)26 mm (1.0 inches)78%moderate
December Weather-3°C (27°F)25 mm (1.0 inches)85%low

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