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April Weather in Saint Johnsville, United States

Last updated: June 24, 2025

In Saint Johnsville, United States, the average temperature in April hovers around 7°C (44°F). Temperatures can vary significantly, dipping to a chilly -9°C (16°F) at their lowest and reaching a pleasant 27°C (80°F) at their peak. Expect 132 mm (5.2 in) of precipitation spread over 15 days, contributing to an average humidity of 84%, making the air feel quite moist.

April Temperature in Saint Johnsville

In April in Saint Johnsville, the average temperature is 7°C (44°F). Maximum temperatures can reach 27°C (80°F), while minimums can plummet to as low as -9°C (16°F). Therefore, travelers should be prepared for a wide range of temperatures and pack accordingly.

April Weather in Saint Johnsville: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Saint Johnsville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint Johnsville, April typically has an average temperature of 7°C (44°F), with highs reaching up to 27°C (80°F) and lows dropping to around -9°C (16°F).
JanFebMarAprMayJunJulAugSepOctNovDec222532445765706861513628
Data source: Temperature data for Saint Johnsville 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 Saint Johnsville

In Saint Johnsville in April, the precipitation amount is 132 mm (5.2 in), occurring over a span of 15 days.

April Precipitation Trends in Saint Johnsville

The chart displays monthly precipitation patterns in Saint Johnsville, 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 Saint Johnsville, April typically receives around 132 mm (5.2 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec931109413213111914312996170117114
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Saint Johnsville

In Saint Johnsville in April humidity is 84%. With an average temperature of 7°C (44°F), this humidity feels like a damp chill that seeps into your bones, making it uncomfortable for traveling and requiring extra layers to stay warm and dry.

April Average Humidity in Saint Johnsville

This chart illustrates the average monthly humidity levels in Saint Johnsville, 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 Saint Johnsville is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%86%84%76%72%67%64%72%81%87%85%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Saint Johnsville

In Saint Johnsville in April, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Saint Johnsville.

Maximum UV Index Levels in Saint Johnsville for April

The chart shows the monthly maximum UV Index (UVI) for Saint Johnsville 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 Saint Johnsville typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3468910998632
Data source: Saint Johnsville 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 Saint Johnsville Compares to Other Months

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

This table compares monthly weather conditions in Saint Johnsville, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (23°F)93 mm (3.7 inches)89%moderate
February Weather-4°C (26°F)110 mm (4.3 inches)88%moderate
March Weather0°C (32°F)94 mm (3.7 inches)86%high
April Weather7°C (44°F)132 mm (5.2 inches)84%very high
May Weather14°C (57°F)131 mm (5.2 inches)76%very high
June Weather18°C (65°F)119 mm (4.7 inches)72%very high
July Weather21°C (70°F)143 mm (5.6 inches)66%very high
August Weather20°C (68°F)129 mm (5.1 inches)64%very high
September Weather16°C (62°F)96 mm (3.8 inches)72%very high
October Weather10°C (51°F)170 mm (6.7 inches)81%high
November Weather2°C (36°F)117 mm (4.6 inches)87%moderate
December Weather-2°C (28°F)114 mm (4.5 inches)84%low

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