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April Weather in Diamond City, United States

Last updated: June 24, 2025

In Diamond City, United States, the average temperature in April is a comfortable 14°C (57°F). However, be prepared for some variability, as temperatures can dip to a chilly -4°C (26°F) or soar to a warm 32°C (90°F). During this month, you can expect 159 mm (6.3 in) of precipitation spread across approximately 12 days, contributing to an average humidity level of 78%.

April Temperature in Diamond City

In April in Diamond City, the average temperature is 14°C (57°F). Maximums can reach 32°C (90°F), while minimums can be as low as -4°C (26°F). Visitors should be prepared for a wide range of temperatures, making layering essential for comfortable travel experiences.

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

The chart illustrates April 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, April typically has an average temperature of 14°C (57°F), with highs reaching up to 32°C (90°F) and lows dropping to around -4°C (26°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.

April Precipitation in Diamond City

In Diamond City in April, the precipitation amount is 159 mm (6.3 in) spread over a period of 12 days.

April Precipitation Trends in Diamond City

The chart displays monthly precipitation patterns in Diamond City, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Diamond City, April typically receives around 159 mm (6.3 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec80991441591829377125511207278
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Diamond City

In Diamond City in April, humidity is 78%. With an average temperature of 14°C (57°F), this humidity feels like a damp blanket wrapping around you, making outdoor exploration a bit uncomfortable but still enjoyable if you stay hydrated and plan for breaks in the shade.

April Average Humidity in Diamond City

This chart illustrates the average monthly humidity levels in Diamond City, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Diamond City is approximately 78%, 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 April generated using information from the Copernicus Climate Change Service.

April UV Index in Diamond City

In Diamond City in April, 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 Diamond City.

Maximum UV Index Levels in Diamond City for April

The chart shows the monthly maximum UV Index (UVI) for Diamond City in April, 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 April, the maximum UV index in Diamond City typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36810111111109753
Data source: Diamond City April 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 April 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 April’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 April’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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