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May Weather in Diamond City, United States

Last updated: June 24, 2025

In May, the average temperature in Diamond City, United States hovers around 20°C (67°F), with a minimum dipping to 4°C (39°F) and a maximum soaring to 33°C (92°F). Expect 182 mm (7.2 in) of precipitation over 14 days, contributing to a humid atmosphere with an average humidity of 83%.

May Temperature in Diamond City

In May in Diamond City, the average temperature is 20°C (67°F). Maximums can reach 33°C (92°F), while minimums can drop as low as 4°C (39°F). This makes Diamond City a great destination for travelers seeking pleasant weather with the chance to experience both warm days and cooler evenings.

May Weather in Diamond City: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Diamond City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Diamond City, May typically has an average temperature of 20°C (67°F), with highs reaching up to 33°C (92°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec374051576776807874614843
Data source: Temperature data for Diamond City 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 Diamond City

In Diamond City in May, the precipitation amount is 182 mm (7.2 in) over a span of 14 days.

May Precipitation Trends in Diamond City

The chart displays monthly precipitation patterns in Diamond City, 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 Diamond City, May typically receives around 182 mm (7.2 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec80991441591829377125511207278
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Diamond City

In Diamond City in May, humidity is 83%. With an average temperature of 20°C (67°F), this humidity feels like a warm, enveloping blanket that can make outdoor activities uncomfortable if you're not prepared. Travelers may find themselves needing frequent breaks in the shade or air conditioning to stay refreshed and energized as they explore.

May Average Humidity in Diamond City

This chart illustrates the average monthly humidity levels in Diamond City, 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 Diamond City is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%78%76%78%83%83%78%68%64%70%83%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Diamond City

In Diamond City 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 Diamond City.

Maximum UV Index Levels in Diamond City for May

The chart shows the monthly maximum UV Index (UVI) for Diamond City 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 Diamond City typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36810111111109753
Data source: Diamond City 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 Diamond City Compares to Other Months

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

This table compares monthly weather conditions in Diamond City, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)80 mm (3.2 inches)81%moderate
February Weather5°C (40°F)99 mm (3.9 inches)78%high
March Weather10°C (51°F)144 mm (5.7 inches)76%very high
April Weather14°C (57°F)159 mm (6.3 inches)78%very high
May Weather20°C (67°F)182 mm (7.2 inches)83%extreme
June Weather24°C (76°F)93 mm (3.7 inches)83%extreme
July Weather27°C (80°F)77 mm (3.0 inches)78%extreme
August Weather25°C (78°F)125 mm (4.9 inches)68%very high
September Weather23°C (74°F)51 mm (2.0 inches)64%very high
October Weather16°C (61°F)119 mm (4.7 inches)70%high
November Weather9°C (48°F)72 mm (2.8 inches)83%moderate
December Weather6°C (43°F)78 mm (3.1 inches)87%moderate

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