nomadseason

April Weather in Oswego, United States

Last updated: June 24, 2025

In April, the average temperature in Oswego, United States is a cool 6°C (43°F). Expect a range from a chilly -3°C (26°F) to a mild 22°C (72°F). During this month, precipitation typically totals 127 mm (5.0 in) over 15 days, accompanied by an average humidity of 88%.

April Temperature in Oswego

In April in Oswego, the average temperature is 6°C (43°F), with maximums reaching 22°C (72°F) and minimums dropping as low as -3°C (26°F). This time of year offers a mix of mild days and chilly nights, so travelers should be prepared for variable weather conditions.

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 6°C (43°F), with highs reaching up to 22°C (72°F) and lows dropping to around -3°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec282934435262727266554234
Data source: Temperature data for Oswego generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Oswego

In Oswego in April, the total precipitation amount is 127 mm (5.0 in) distributed over 15 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 127 mm (5.0 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec108104921271179017711995187137140
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

April Humidity in Oswego

In Oswego in April, humidity is 88%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable and prompting you to seek warm shelter frequently.

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 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%87%88%82%79%78%76%78%84%89%86%
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 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 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 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2468910997532
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 Weather-2°C (29°F)108 mm (4.3 inches)90%low
February Weather-2°C (29°F)104 mm (4.1 inches)90%moderate
March Weather1°C (34°F)92 mm (3.6 inches)87%high
April Weather6°C (43°F)127 mm (5.0 inches)88%very high
May Weather11°C (52°F)117 mm (4.6 inches)82%very high
June Weather17°C (62°F)90 mm (3.6 inches)79%very high
July Weather22°C (72°F)177 mm (7.0 inches)78%very high
August Weather22°C (72°F)119 mm (4.7 inches)76%very high
September Weather19°C (66°F)95 mm (3.8 inches)78%high
October Weather13°C (56°F)187 mm (7.4 inches)84%moderate
November Weather6°C (42°F)137 mm (5.4 inches)89%moderate
December Weather1°C (35°F)140 mm (5.5 inches)86%low

Compare Oswego's Climate with Cities Worldwide