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April Weather in Hellertown, United States

Last updated: June 24, 2025

In April, the average temperature in Hellertown, United States is a cool 11°C (52°F), with temperature extremes ranging from a chilly -3°C (27°F) to a warm 30°C (86°F). Expect about 101 mm (4.0 in) of precipitation over roughly 12 days, and prepare for an average humidity level of 83%, making for a refreshing, albeit damp atmosphere.

April Temperature in Hellertown

In April in Hellertown, the average temperature is 11°C (52°F), with maximums reaching 30°C (86°F) and minimums dropping as low as -3°C (27°F). Be prepared for a wide range of temperatures to fully enjoy your trip.

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

The chart illustrates April temperature patterns in Hellertown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hellertown, April typically has an average temperature of 11°C (52°F), with highs reaching up to 30°C (86°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec333641526271777569594437
Data source: Temperature data for Hellertown 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 Hellertown

In Hellertown in April, the precipitation amount is 101 mm (4.0 in) spread over 12 days.

April Precipitation Trends in Hellertown

The chart displays monthly precipitation patterns in Hellertown, 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 Hellertown, April typically receives around 101 mm (4.0 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec671061031011401031381529910885101
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Hellertown

In Hellertown in April humidity is 83%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that can make outdoor activities uncomfortable, often leading travelers to seek shelter indoors or to dress in layered clothing to stay warm while exploring the area.

April Average Humidity in Hellertown

This chart illustrates the average monthly humidity levels in Hellertown, 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 Hellertown is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%85%83%75%74%65%62%66%79%87%85%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Hellertown

In Hellertown 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 Hellertown.

Maximum UV Index Levels in Hellertown for April

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

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

This table compares monthly weather conditions in Hellertown, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (33°F)67 mm (2.6 inches)87%moderate
February Weather2°C (36°F)106 mm (4.2 inches)85%moderate
March Weather5°C (42°F)103 mm (4.0 inches)85%high
April Weather11°C (52°F)101 mm (4.0 inches)83%very high
May Weather17°C (62°F)140 mm (5.5 inches)75%very high
June Weather22°C (71°F)103 mm (4.1 inches)73%very high
July Weather25°C (77°F)137 mm (5.4 inches)65%very high
August Weather24°C (75°F)152 mm (6.0 inches)62%very high
September Weather20°C (69°F)99 mm (3.9 inches)66%very high
October Weather15°C (59°F)108 mm (4.3 inches)79%high
November Weather7°C (44°F)85 mm (3.4 inches)87%moderate
December Weather3°C (37°F)100 mm (4.0 inches)85%low

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