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April Weather in Danbury, United States

Last updated: June 24, 2025

In Danbury, United States, the average temperature in April hovers around 9°C (49°F). Daily variations can be significant, with minimums plunging to -4°C (25°F) and maximums reaching up to 28°C (84°F). Expect a fair amount of rain, with 124 mm (4.9 in) of precipitation spread over 13 days, contributing to an average humidity of 78% that makes the air feel quite moist.

April Temperature in Danbury

In April in Danbury, the average temperature is 9°C (49°F). The maximum can reach 28°C (84°F), and the minimum can be as low as -4°C (25°F). Be prepared for a wide range of temperatures, making layered clothing essential for your travels.

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

The chart illustrates April temperature patterns in Danbury, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Danbury, April typically has an average temperature of 9°C (49°F), with highs reaching up to 28°C (84°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec303338495969747366564234
Data source: Temperature data for Danbury 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 Danbury

In Danbury in April, the total precipitation amount is 124 mm (4.9 in) over a span of 13 days.

April Precipitation Trends in Danbury

The chart displays monthly precipitation patterns in Danbury, 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 Danbury, April typically receives around 124 mm (4.9 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec71978912411510214511912214793115
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Danbury

In Danbury in April, humidity is 78%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that clings to your skin, making it essential to dress in layers while traveling, as the cool air combines with the moisture to create a brisk and invigorating atmosphere.

April Average Humidity in Danbury

This chart illustrates the average monthly humidity levels in Danbury, 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 Danbury is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%81%78%70%69%62%65%68%74%82%80%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Danbury

In Danbury in April, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Danbury.

Maximum UV Index Levels in Danbury for April

The chart shows the monthly maximum UV Index (UVI) for Danbury 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 Danbury typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356810101098642
Data source: Danbury 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 Danbury Compares to Other Months

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

This table compares monthly weather conditions in Danbury, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)71 mm (2.8 inches)84%moderate
February Weather0°C (33°F)97 mm (3.8 inches)82%moderate
March Weather3°C (38°F)89 mm (3.5 inches)81%high
April Weather9°C (49°F)124 mm (4.9 inches)78%very high
May Weather15°C (59°F)115 mm (4.5 inches)69%very high
June Weather20°C (69°F)102 mm (4.0 inches)69%very high
July Weather24°C (75°F)145 mm (5.7 inches)62%very high
August Weather23°C (73°F)119 mm (4.7 inches)65%very high
September Weather19°C (66°F)122 mm (4.8 inches)68%very high
October Weather13°C (56°F)147 mm (5.8 inches)74%high
November Weather6°C (42°F)93 mm (3.7 inches)82%moderate
December Weather1°C (34°F)115 mm (4.5 inches)80%low

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