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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 15°C (59°F). However, you can experience a range from a chilly -2°C (28°F) to a warm 29°C (85°F). Expect about 136 mm (5.3 in) of precipitation spread over 11 days, accompanied by an average humidity of 84%, creating a refreshing yet damp atmosphere.

April Temperature in Danbury

In April in Danbury, the average temperature is 15°C (59°F). Maximums can reach 29°C (85°F) and minimums can be as low as -2°C (28°F). Pack accordingly to enjoy your trip, as the weather can vary dramatically throughout the month.

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 15°C (59°F), with highs reaching up to 29°C (85°F) and lows dropping to around -2°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec394550586774787671624843
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 precipitation amount is 136 mm (5.3 in) spread over 11 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 136 mm (5.3 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec8111980136129907310513312385109
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 84%. With an average temperature of 15°C (59°F), this humidity feels like an oppressive blanket wrapping around you, making it challenging to enjoy outdoor activities and travel comfortably.

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 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%86%84%83%83%79%66%68%78%89%86%
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 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 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 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810101110109853
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 Weather4°C (40°F)81 mm (3.2 inches)87%moderate
February Weather7°C (45°F)118 mm (4.7 inches)87%high
March Weather10°C (50°F)80 mm (3.2 inches)86%very high
April Weather15°C (59°F)136 mm (5.3 inches)84%very high
May Weather19°C (67°F)129 mm (5.1 inches)83%very high
June Weather23°C (74°F)90 mm (3.5 inches)83%extreme
July Weather26°C (79°F)73 mm (2.9 inches)79%very high
August Weather25°C (76°F)105 mm (4.1 inches)66%very high
September Weather22°C (72°F)133 mm (5.2 inches)68%very high
October Weather17°C (62°F)123 mm (4.8 inches)78%very high
November Weather9°C (48°F)85 mm (3.3 inches)89%moderate
December Weather6°C (44°F)109 mm (4.3 inches)86%moderate

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