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May Weather in Sterling, United States

Last updated: June 24, 2025

In May, the average temperature in Sterling, United States hovers around 18°C (65°F), providing a comfortable climate for exploration. Expect minimums to drop to 3°C (37°F), while maximums can soar to an impressive 36°C (96°F). During this month, you can anticipate approximately 160 mm (6.3 in) of precipitation spread over 13 days, contributing to an average humidity of 82%—perfect for those who enjoy a lush and vibrant atmosphere!

May Temperature in Sterling

In May in Sterling, the average temperature is 18°C (65°F). Maximum temperatures can reach as high as 36°C (96°F), while minimum temperatures can drop to 3°C (37°F). Therefore, visitors should be prepared for a wide range of temperatures during their travels.

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

The chart illustrates May temperature patterns in Sterling, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sterling, May typically has an average temperature of 18°C (65°F), with highs reaching up to 36°C (96°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec323347546578817772574537
Data source: Temperature data for Sterling 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 Sterling

In Sterling in May, the precipitation amount is 160 mm (6.3 in) over a span of 13 days.

May Precipitation Trends in Sterling

The chart displays monthly precipitation patterns in Sterling, 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 Sterling, May typically receives around 160 mm (6.3 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec2727695416072709265852629
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Sterling

In Sterling in May, humidity is 82%. With an average temperature of 18°C (65°F), this humidity feels like a warm, sticky embrace that can quickly leave travelers feeling fatigued and in need of frequent breaks to stay refreshed and hydrated.

May Average Humidity in Sterling

This chart illustrates the average monthly humidity levels in Sterling, 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 Sterling is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%78%67%70%82%81%80%80%74%71%79%83%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Sterling

In Sterling 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 Sterling.

Maximum UV Index Levels in Sterling for May

The chart shows the monthly maximum UV Index (UVI) for Sterling 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 Sterling typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111109753
Data source: Sterling 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 Sterling Compares to Other Months

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

This table compares monthly weather conditions in Sterling, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)27 mm (1.0 inches)74%moderate
February Weather1°C (33°F)27 mm (1.1 inches)78%moderate
March Weather8°C (47°F)69 mm (2.7 inches)67%high
April Weather12°C (55°F)54 mm (2.1 inches)70%very high
May Weather18°C (65°F)160 mm (6.3 inches)82%very high
June Weather25°C (78°F)72 mm (2.9 inches)81%extreme
July Weather27°C (81°F)70 mm (2.8 inches)80%extreme
August Weather25°C (78°F)92 mm (3.6 inches)80%very high
September Weather22°C (73°F)65 mm (2.6 inches)73%very high
October Weather14°C (57°F)85 mm (3.4 inches)71%high
November Weather7°C (45°F)26 mm (1.0 inches)79%moderate
December Weather3°C (37°F)29 mm (1.2 inches)83%moderate

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