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April Weather in Morristown, United States

Last updated: June 24, 2025

In April, the average temperature in Morristown, United States hovers around 11°C (53°F). Expect lows of -6°C (22°F) and highs reaching up to 29°C (84°F). Rainfall totals approximately 102 mm (4.0 in) over 11 days, contributing to an average humidity of 84%. Prepare accordingly for a mix of conditions!

April Temperature in Morristown

In April in Morristown, the average temperature is 11°C (53°F). The maximum can reach 29°C (84°F) while the minimum can drop as low as -6°C (22°F). Travelers should be prepared for a wide range of temperatures during this time.

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

The chart illustrates April temperature patterns in Morristown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Morristown, April typically has an average temperature of 11°C (53°F), with highs reaching up to 29°C (84°F) and lows dropping to around -6°C (22°F).
JanFebMarAprMayJunJulAugSepOctNovDec303443526473767470584236
Data source: Temperature data for Morristown 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 Morristown

In Morristown in April, the precipitation amount is 102 mm (4.0 in) over the course of 11 days.

April Precipitation Trends in Morristown

The chart displays monthly precipitation patterns in Morristown, 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 Morristown, April typically receives around 102 mm (4.0 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec8310013410213610511292881029887
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Morristown

In Morristown in April, humidity is 84%. With an average temperature of 11°C (53°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration a bit uncomfortable and requiring extra layers to stay warm while traveling.

April Average Humidity in Morristown

This chart illustrates the average monthly humidity levels in Morristown, 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 Morristown is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%86%84%79%82%79%70%69%76%88%87%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Morristown

In Morristown 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 Morristown.

Maximum UV Index Levels in Morristown for April

The chart shows the monthly maximum UV Index (UVI) for Morristown 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 Morristown typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910111098643
Data source: Morristown 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 Morristown Compares to Other Months

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

This table compares monthly weather conditions in Morristown, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)83 mm (3.3 inches)87%moderate
February Weather1°C (34°F)100 mm (3.9 inches)85%moderate
March Weather6°C (43°F)134 mm (5.3 inches)86%high
April Weather11°C (53°F)102 mm (4.0 inches)84%very high
May Weather18°C (65°F)136 mm (5.4 inches)79%very high
June Weather23°C (73°F)105 mm (4.1 inches)82%extreme
July Weather25°C (77°F)112 mm (4.4 inches)79%very high
August Weather23°C (74°F)92 mm (3.6 inches)70%very high
September Weather21°C (70°F)88 mm (3.5 inches)69%very high
October Weather14°C (58°F)102 mm (4.0 inches)76%high
November Weather5°C (42°F)98 mm (3.9 inches)88%moderate
December Weather2°C (36°F)86 mm (3.4 inches)87%moderate

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