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April Weather in Monrovia, United States

Last updated: June 24, 2025

In April, the average temperature in Monrovia, United States hovers around 11°C (53°F). Expect a minimum chill of -6°C (22°F) and potential highs of 28°C (83°F), offering a diverse range for weather enthusiasts. With an average precipitation of 102 mm (4.0 in) over 11 days, and a notable humidity level of 84%, be prepared for a damp, cool atmosphere that characterizes this intriguing time of year.

April Temperature in Monrovia

In April in Monrovia, the average temperature is 11°C (53°F), with maximums reaching 28°C (83°F) and minimums dropping as low as -6°C (22°F). This wide temperature range means that travelers should be prepared for both warm and chilly moments while exploring.

April Weather in Monrovia: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Monrovia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Monrovia, April typically has an average temperature of 11°C (53°F), with highs reaching up to 28°C (83°F) and lows dropping to around -6°C (22°F).
JanFebMarAprMayJunJulAugSepOctNovDec313443526473777470584237
Data source: Temperature data for Monrovia 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 Monrovia

In Monrovia in April, the precipitation amount is 102 mm (4.0 in) over the course of 11 days.

April Precipitation Trends in Monrovia

The chart displays monthly precipitation patterns in Monrovia, 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 Monrovia, April typically receives around 102 mm (4.0 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec8696129102131121108107741009888
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Monrovia

In Monrovia in April, humidity is 84%. With an average temperature of 11°C (53°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration a bit uncomfortable and requiring extra layers to stay warm while traveling.

April Average Humidity in Monrovia

This chart illustrates the average monthly humidity levels in Monrovia, 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 Monrovia is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%86%84%79%82%79%70%69%76%88%87%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Monrovia

In Monrovia in April, 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 Monrovia.

Maximum UV Index Levels in Monrovia for April

The chart shows the monthly maximum UV Index (UVI) for Monrovia 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 Monrovia typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910111098643
Data source: Monrovia 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 Monrovia Compares to Other Months

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

This table compares monthly weather conditions in Monrovia, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)86 mm (3.4 inches)87%moderate
February Weather1°C (34°F)96 mm (3.8 inches)85%moderate
March Weather6°C (43°F)129 mm (5.1 inches)86%high
April Weather11°C (53°F)102 mm (4.0 inches)84%very high
May Weather18°C (65°F)131 mm (5.2 inches)79%very high
June Weather23°C (74°F)121 mm (4.8 inches)82%extreme
July Weather25°C (77°F)108 mm (4.3 inches)79%very high
August Weather23°C (74°F)107 mm (4.2 inches)70%very high
September Weather21°C (70°F)74 mm (2.9 inches)69%very high
October Weather14°C (58°F)100 mm (3.9 inches)76%high
November Weather5°C (42°F)98 mm (3.8 inches)88%moderate
December Weather3°C (37°F)88 mm (3.5 inches)87%moderate

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