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April Weather in Downey, United States

Last updated: June 24, 2025

In April, the average temperature in Downey, United States hovers around 5°C (41°F). Expect extremes, with temperatures ranging from a chilly -14°C (7°F) to a warm 22°C (73°F). During this month, Downey experiences an average precipitation of 69 mm (2.7 in) spread over 12 days, accompanied by a high humidity level of 81%.

April Temperature in Downey

In April in Downey, the average temperature is 5°C (41°F), with maximums reaching up to 22°C (73°F) and minimums dropping as low as -14°C (7°F). Travelers should be prepared for a wide range of temperatures, making it essential to pack layers for both warm and cold conditions.

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

The chart illustrates April temperature patterns in Downey, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Downey, April typically has an average temperature of 5°C (41°F), with highs reaching up to 22°C (73°F) and lows dropping to around -14°C (7°F).
JanFebMarAprMayJunJulAugSepOctNovDec222433415163727060433322
Data source: Temperature data for Downey 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 Downey

In Downey in April, the precipitation amount is 69 mm (2.7 in) over the span of 12 days.

April Precipitation Trends in Downey

The chart displays monthly precipitation patterns in Downey, 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 Downey, April typically receives around 69 mm (2.7 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec597850696129142235454654
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Downey

In Downey in April, humidity is 81%. With an average temperature of 5°C (41°F), this humidity feels like a chilly dampness that clings to your skin, making outdoor exploration uncomfortable and requiring warm, waterproof clothing to stay comfortable while traveling.

April Average Humidity in Downey

This chart illustrates the average monthly humidity levels in Downey, 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 Downey is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec95%95%90%81%71%64%59%49%52%69%86%91%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Downey

In Downey 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 Downey.

Maximum UV Index Levels in Downey for April

The chart shows the monthly maximum UV Index (UVI) for Downey 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 Downey typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3589101111109643
Data source: Downey 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 Downey Compares to Other Months

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

This table compares monthly weather conditions in Downey, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)59 mm (2.3 inches)95%moderate
February Weather-4°C (25°F)78 mm (3.1 inches)95%moderate
March Weather1°C (33°F)50 mm (2.0 inches)90%very high
April Weather5°C (41°F)69 mm (2.7 inches)81%very high
May Weather11°C (51°F)60 mm (2.4 inches)71%very high
June Weather17°C (63°F)29 mm (1.1 inches)64%extreme
July Weather22°C (72°F)14 mm (0.6 inches)59%extreme
August Weather21°C (70°F)22 mm (0.9 inches)49%very high
September Weather15°C (60°F)35 mm (1.4 inches)52%very high
October Weather6°C (44°F)45 mm (1.8 inches)69%high
November Weather1°C (33°F)46 mm (1.8 inches)86%moderate
December Weather-5°C (23°F)54 mm (2.1 inches)91%moderate

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