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May Weather in Lambertville, United States

Last updated: June 24, 2025

In May, the average temperature in Lambertville, United States hovers around 16°C (61°F), with a potential minimum of -1°C (30°F) and a maximum reaching 34°C (93°F). Expect a moderate amount of precipitation, totaling 136 mm (5.4 in) across about 15 days, and the atmosphere will feel quite humid, with an average humidity of 81%.

May Temperature in Lambertville

In May in Lambertville, the average temperature is 16°C (61°F). Maximum can reach 34°C (93°F) and minimum can be as low as -1°C (30°F). This range makes it essential for travelers to pack accordingly, preparing for both warm days and chilly nights.

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

The chart illustrates May temperature patterns in Lambertville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lambertville, May typically has an average temperature of 16°C (61°F), with highs reaching up to 34°C (93°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec282939486171767367564034
Data source: Temperature data for Lambertville 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 Lambertville

In Lambertville in May, the precipitation amount is 136 mm (5.4 in) over a period of 15 days.

May Precipitation Trends in Lambertville

The chart displays monthly precipitation patterns in Lambertville, 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 Lambertville, May typically receives around 136 mm (5.4 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec67688189136971078459938254
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Lambertville

In Lambertville in May, humidity is 81%. With an average temperature of 16°C (61°F), this humidity feels like a warm, heavy blanket wrapping around you as you explore the sights, making it essential to stay hydrated and take regular breaks in the shade.

May Average Humidity in Lambertville

This chart illustrates the average monthly humidity levels in Lambertville, 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 Lambertville is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%87%88%81%82%81%78%78%82%89%86%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Lambertville

In Lambertville 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 Lambertville.

Maximum UV Index Levels in Lambertville for May

The chart shows the monthly maximum UV Index (UVI) for Lambertville 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 Lambertville typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Lambertville 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 Lambertville Compares to Other Months

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

This table compares monthly weather conditions in Lambertville, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)67 mm (2.6 inches)88%moderate
February Weather-2°C (29°F)68 mm (2.7 inches)87%moderate
March Weather4°C (39°F)81 mm (3.2 inches)87%high
April Weather9°C (49°F)89 mm (3.5 inches)87%very high
May Weather16°C (61°F)136 mm (5.4 inches)81%very high
June Weather22°C (71°F)97 mm (3.8 inches)82%very high
July Weather24°C (76°F)107 mm (4.2 inches)81%very high
August Weather23°C (74°F)84 mm (3.3 inches)78%very high
September Weather20°C (68°F)59 mm (2.3 inches)78%very high
October Weather13°C (56°F)93 mm (3.7 inches)82%high
November Weather5°C (41°F)82 mm (3.2 inches)89%moderate
December Weather1°C (34°F)54 mm (2.1 inches)86%low

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