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April Weather in Oswego, United States

Last updated: June 24, 2025

The average temperature in Oswego, United States during April is a comfortable 14°C (58°F). However, temperatures can vary widely, with a minimum of -5°C (23°F) and a maximum of 32°C (89°F). Expect about 124 mm (4.9 in) of precipitation over 11 days, contributing to an average humidity level of 73%.

April Temperature in Oswego

In April in Oswego, the average temperature is 14°C (58°F). The maximum can reach 32°C (89°F), while the minimum can drop as low as -5°C (23°F). Be prepared for a wide range of temperatures when traveling during this time.

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

The chart illustrates April temperature patterns in Oswego, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Oswego, April typically has an average temperature of 14°C (58°F), with highs reaching up to 32°C (89°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec363851576878817974604842
Data source: Temperature data for Oswego 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 Oswego

In Oswego in April, the precipitation amount is 124 mm (4.9 in) over the course of 11 days.

April Precipitation Trends in Oswego

The chart displays monthly precipitation patterns in Oswego, 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 Oswego, April typically receives around 124 mm (4.9 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec67651281242399698117941275340
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Oswego

In Oswego in April, humidity is 73%. With an average temperature of 14°C (58°F), this humidity feels like a warm, damp blanket wrapping around you, making outdoor activities a bit uncomfortable for traveling unless you stay hydrated and take frequent breaks in the shade.

April Average Humidity in Oswego

This chart illustrates the average monthly humidity levels in Oswego, 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 Oswego is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%76%71%74%83%83%81%73%67%72%82%85%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Oswego

In Oswego 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 Oswego.

Maximum UV Index Levels in Oswego for April

The chart shows the monthly maximum UV Index (UVI) for Oswego 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 Oswego typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35710101111109753
Data source: Oswego 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 Oswego Compares to Other Months

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

This table compares monthly weather conditions in Oswego, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)67 mm (2.6 inches)77%moderate
February Weather3°C (38°F)65 mm (2.6 inches)76%moderate
March Weather10°C (51°F)128 mm (5.0 inches)71%high
April Weather14°C (58°F)124 mm (4.9 inches)73%very high
May Weather20°C (68°F)239 mm (9.4 inches)83%very high
June Weather26°C (78°F)96 mm (3.8 inches)83%extreme
July Weather27°C (81°F)98 mm (3.8 inches)81%extreme
August Weather26°C (79°F)117 mm (4.6 inches)73%very high
September Weather24°C (75°F)94 mm (3.7 inches)67%very high
October Weather16°C (60°F)127 mm (5.0 inches)72%high
November Weather9°C (48°F)53 mm (2.1 inches)82%moderate
December Weather6°C (42°F)40 mm (1.6 inches)85%moderate

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