May Weather in Morristown, United States

Last updated: June 24, 2025

In May, the average temperature in Morristown, United States is a pleasant 16°C (62°F). However, temperatures can sometimes vary dramatically, dipping to a chilly 1°C (33°F) or soaring to a sizzling 33°C (92°F). Expect 135 mm (5.3 in) of precipitation over 13 days, contributing to an average humidity of 69%. Whether you're exploring the local sights or enjoying outdoor activities, be prepared for some variability in the weather!

May Temperature in Morristown

In May in Morristown, the average temperature is 16°C (62°F). The maximum can reach 33°C (92°F), and the minimum can be as low as 1°C (33°F). Be prepared for a wide range of temperatures, making it essential to pack both lightweight and warmer clothing for your travels.

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

The chart illustrates May 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, May typically has an average temperature of 16°C (62°F), with highs reaching up to 33°C (92°F) and lows dropping to around 1°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec333641516171777568594437
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.

May Precipitation in Morristown

In Morristown in May, the precipitation amount is 135 mm (5.3 in) over the course of 13 days.

May Precipitation Trends in Morristown

The chart displays monthly precipitation patterns in Morristown, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Morristown, May typically receives around 135 mm (5.3 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec7010410311613510614213610114286113
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Morristown

In Morristown in May humidity is 69%. With an average temperature of 16°C (62°F), this humidity feels like a warm, slightly uncomfortable embrace, making outdoor activities a bit sticky and necessitating frequent hydration during travel.

May Average Humidity in Morristown

This chart illustrates the average monthly humidity levels in Morristown, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Morristown is approximately 69%, 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 May generated using information from the Copernicus Climate Change Service.

May UV Index in Morristown

In Morristown in May, 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 Morristown.

Maximum UV Index Levels in Morristown for May

The chart shows the monthly maximum UV Index (UVI) for Morristown in May, 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 May, the maximum UV index in Morristown typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356810101098642
Data source: Morristown May 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 May 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 May’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 May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)70 mm (2.7 inches)84%moderate
February Weather2°C (36°F)104 mm (4.1 inches)82%moderate
March Weather5°C (41°F)103 mm (4.1 inches)81%high
April Weather11°C (52°F)116 mm (4.6 inches)78%very high
May Weather16°C (62°F)135 mm (5.3 inches)69%very high
June Weather21°C (71°F)106 mm (4.2 inches)69%very high
July Weather25°C (77°F)142 mm (5.6 inches)62%very high
August Weather24°C (75°F)136 mm (5.4 inches)65%very high
September Weather20°C (69°F)101 mm (4.0 inches)68%very high
October Weather15°C (59°F)142 mm (5.6 inches)74%high
November Weather7°C (44°F)86 mm (3.4 inches)82%moderate
December Weather3°C (37°F)113 mm (4.4 inches)80%low

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