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April Weather in Stonybrook, United States

Last updated: June 24, 2025

In April, the average temperature in Stonybrook, United States is a mild 12°C (54°F). Expect a range that can dip to a chilly -2°C (28°F) and rise to a balmy 30°C (87°F). Be prepared for occasional rain, with total precipitation around 100 mm (3.9 in) spread over 11 days. With an average humidity of 81%, it’s a great time to enjoy the region's beauty, but don’t forget your umbrella!

April Temperature in Stonybrook

In April in Stonybrook, the average temperature is 12°C (54°F), with maximums reaching up to 30°C (87°F) and minimums dipping as low as -2°C (28°F). Be prepared for a wide range of temperatures when traveling to Stonybrook during this time.

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

The chart illustrates April temperature patterns in Stonybrook, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Stonybrook, April typically has an average temperature of 12°C (54°F), with highs reaching up to 30°C (87°F) and lows dropping to around -2°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec343843546473787670604538
Data source: Temperature data for Stonybrook 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 Stonybrook

In Stonybrook in April, the precipitation amount is 100 mm (3.9 in) over the course of 11 days.

April Precipitation Trends in Stonybrook

The chart displays monthly precipitation patterns in Stonybrook, 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 Stonybrook, April typically receives around 100 mm (3.9 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec6010096100125961291241091018590
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Stonybrook

In Stonybrook in April humidity is 81%. With an average temperature of 12°C (54°F), this humidity feels like a damp blanket enveloping you, making travel sluggish and uncomfortable as you battle the stickiness while trying to enjoy your surroundings.

April Average Humidity in Stonybrook

This chart illustrates the average monthly humidity levels in Stonybrook, 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 Stonybrook is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%83%81%78%79%74%72%75%81%85%84%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Stonybrook

In Stonybrook 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 Stonybrook.

Maximum UV Index Levels in Stonybrook for April

The chart shows the monthly maximum UV Index (UVI) for Stonybrook 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 Stonybrook typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Stonybrook 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 Stonybrook Compares to Other Months

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

This table compares monthly weather conditions in Stonybrook, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (35°F)60 mm (2.3 inches)84%moderate
February Weather3°C (38°F)100 mm (3.9 inches)83%moderate
March Weather6°C (44°F)96 mm (3.8 inches)83%high
April Weather12°C (54°F)100 mm (3.9 inches)81%very high
May Weather18°C (64°F)125 mm (4.9 inches)78%very high
June Weather23°C (73°F)96 mm (3.8 inches)79%very high
July Weather26°C (79°F)129 mm (5.1 inches)74%very high
August Weather24°C (76°F)123 mm (4.9 inches)72%very high
September Weather21°C (70°F)109 mm (4.3 inches)75%very high
October Weather16°C (60°F)101 mm (4.0 inches)81%high
November Weather7°C (45°F)85 mm (3.3 inches)85%moderate
December Weather4°C (39°F)90 mm (3.5 inches)84%low

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