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April Weather in Knottsville, United States

Last updated: June 24, 2025

In April, the average temperature in Knottsville, United States is a comfortable 14°C (58°F). However, be prepared for a range of temperatures, as it can dip as low as -4°C (26°F) and soar up to 30°C (86°F). Expect 135 mm (5.3 in) of precipitation over 11 days, combined with an average humidity of 82%, making for a moist and varied climate.

April Temperature in Knottsville

In April in Knottsville, the average temperature is 14°C (58°F). Maximums can reach 30°C (86°F), while minimums can drop as low as -4°C (26°F). Be prepared for a range of temperatures when traveling, and pack accordingly!

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

The chart illustrates April 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, April typically has an average temperature of 14°C (58°F), with highs reaching up to 30°C (86°F) and lows dropping to around -4°C (26°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.

April Precipitation in Knottsville

In Knottsville in April, the precipitation amount is 135 mm (5.3 in) over the course of 11 days.

April Precipitation Trends in Knottsville

The chart displays monthly precipitation patterns in Knottsville, 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 Knottsville, April typically receives around 135 mm (5.3 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec9313612913513412699929612194106
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Knottsville

In Knottsville in April, humidity is 82%. With an average temperature of 14°C (58°F), this humidity feels like a heavy blanket wrapping around you, making travel uncomfortable and sticky.

April Average Humidity in Knottsville

This chart illustrates the average monthly humidity levels in Knottsville, 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 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 April generated using information from the Copernicus Climate Change Service.

April UV Index in Knottsville

In Knottsville in April, 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 April

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

Weather in Knottsville varies notably across the year, with each month offering distinct climate conditions. This page compares April’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 April’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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