April Weather in Bangor, United States

Last updated: June 24, 2025

In April, the average temperature in Bangor, United States hovers around 8°C (47°F). Expect minimum lows dipping to -6°C (21°F) and warm highs reaching up to 27°C (81°F). With a total precipitation of 101 mm (4.0 in) spread over 14 days, it's a month where you might need your umbrella. The climate is also quite humid, with an average humidity level of 87%. Stay prepared for all that April has to offer!

April Temperature in Bangor

In April in Bangor, the average temperature is 8°C (47°F). Maximum temperatures can reach 27°C (81°F), while minimums can drop as low as -6°C (21°F). Be prepared for a wide range of temperatures when traveling to Bangor during this time.

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

The chart illustrates April temperature patterns in Bangor, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bangor, April typically has an average temperature of 8°C (47°F), with highs reaching up to 27°C (81°F) and lows dropping to around -6°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec272837466071757266544034
Data source: Temperature data for Bangor 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 Bangor

In Bangor in April, the precipitation amount is 101 mm (4.0 in) over the course of 14 days.

April Precipitation Trends in Bangor

The chart displays monthly precipitation patterns in Bangor, 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 Bangor, April typically receives around 101 mm (4.0 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec74748410116213811385821447266
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Bangor

In Bangor in April, humidity is 87%. With an average temperature of 8°C (47°F), this humidity feels like a damp chill that clings to your skin, making outdoor exploration uncomfortably muggy despite the cool air.

April Average Humidity in Bangor

This chart illustrates the average monthly humidity levels in Bangor, 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 Bangor is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%86%87%82%81%78%79%80%82%87%86%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Bangor

In Bangor 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 Bangor.

Maximum UV Index Levels in Bangor for April

The chart shows the monthly maximum UV Index (UVI) for Bangor 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 Bangor typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689101097532
Data source: Bangor 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 Bangor Compares to Other Months

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

This table compares monthly weather conditions in Bangor, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)74 mm (2.9 inches)87%moderate
February Weather-2°C (28°F)74 mm (2.9 inches)87%moderate
March Weather3°C (38°F)84 mm (3.3 inches)86%high
April Weather8°C (47°F)101 mm (4.0 inches)87%very high
May Weather15°C (60°F)162 mm (6.4 inches)82%very high
June Weather21°C (71°F)138 mm (5.4 inches)81%very high
July Weather24°C (75°F)113 mm (4.5 inches)78%very high
August Weather22°C (72°F)85 mm (3.3 inches)79%very high
September Weather19°C (67°F)82 mm (3.2 inches)79%high
October Weather12°C (54°F)144 mm (5.7 inches)82%moderate
November Weather4°C (40°F)72 mm (2.8 inches)87%moderate
December Weather1°C (34°F)66 mm (2.6 inches)86%low

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