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May Weather in Knottsville, United States

Last updated: June 24, 2025

In Knottsville, United States, the average temperature in May hovers around 21°C (69°F). Expect a range from a chilly 3°C (37°F) to a warm 33°C (92°F). During this month, rainfall accumulates to about 134 mm (5.3 in) over 14 days, contributing to an average humidity level of 82%. Prepare for a mix of warmth and wet weather!

May Temperature in Knottsville

In May in Knottsville, the average temperature is 21°C (69°F). The maximum can reach 33°C (92°F), and the minimum can be as low as 3°C (37°F). This variation makes it an ideal time to explore outdoor activities while packing for both warm and cooler moments.

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

The chart illustrates May temperature patterns in Knottsville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Knottsville, May typically has an average temperature of 21°C (69°F), with highs reaching up to 33°C (92°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec364149576976807773614642
Data source: Temperature data for Knottsville 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 Knottsville

In Knottsville in May, the total precipitation amount is 134 mm (5.3 in) over the course of 14 days.

May Precipitation Trends in Knottsville

The chart displays monthly precipitation patterns in Knottsville, 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 Knottsville, May typically receives around 134 mm (5.3 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec9313612913513412699929612194106
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Knottsville

In Knottsville in May humidity is 82%. With an average temperature of 21°C (69°F), this humidity feels like a sweltering embrace, making outdoor activities feel more strenuous and prompting travelers to seek shade and cooling breezes.

May Average Humidity in Knottsville

This chart illustrates the average monthly humidity levels in Knottsville, 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 Knottsville is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%86%82%83%83%80%74%71%78%88%88%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Knottsville

In Knottsville 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 Knottsville.

Maximum UV Index Levels in Knottsville for May

The chart shows the monthly maximum UV Index (UVI) for Knottsville 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 Knottsville typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710101110109753
Data source: Knottsville 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 Knottsville Compares to Other Months

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

This table compares monthly weather conditions in Knottsville, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (37°F)93 mm (3.7 inches)87%moderate
February Weather5°C (41°F)136 mm (5.4 inches)86%high
March Weather10°C (50°F)129 mm (5.1 inches)86%high
April Weather14°C (58°F)135 mm (5.3 inches)82%very high
May Weather21°C (69°F)134 mm (5.3 inches)82%very high
June Weather25°C (77°F)126 mm (5.0 inches)83%extreme
July Weather26°C (80°F)99 mm (3.9 inches)80%very high
August Weather25°C (78°F)92 mm (3.6 inches)74%very high
September Weather23°C (73°F)96 mm (3.8 inches)71%very high
October Weather16°C (62°F)121 mm (4.8 inches)78%high
November Weather8°C (46°F)94 mm (3.7 inches)88%moderate
December Weather6°C (42°F)106 mm (4.2 inches)88%moderate

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