April Weather in Windsor, United States

Last updated: June 24, 2025

In April, the average temperature in Windsor, United States hovers around 8°C (46°F). Visitors can expect a range of temperatures, with a chilly minimum dipping to -6°C (21°F) and a warm maximum reaching up to 26°C (79°F). The area sees a precipitation of 125 mm (4.9 in) spread over 15 days, and with an average humidity of 83%, it's a time when layering up and staying prepared is essential!

April Temperature in Windsor

In April in Windsor, the average temperature is 8°C (46°F). Maximums can reach 26°C (79°F), while minimums can drop as low as -6°C (21°F). This weather presents a unique opportunity for travelers to experience a wide range of outdoor activities, from enjoying mild days to embracing the chill of winter.

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

The chart illustrates April temperature patterns in Windsor, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Windsor, April typically has an average temperature of 8°C (46°F), with highs reaching up to 26°C (79°F) and lows dropping to around -6°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec262935465766716963533831
Data source: Temperature data for Windsor 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 Windsor

In Windsor in April, the precipitation amount is 125 mm (4.9 in) over a span of 15 days.

April Precipitation Trends in Windsor

The chart displays monthly precipitation patterns in Windsor, 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 Windsor, April typically receives around 125 mm (4.9 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec779392125135111129119991429993
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Windsor

In Windsor in April, humidity is 83%. With an average temperature of 8°C (46°F), this humidity feels like a damp chill that seeps into your bones, making even short outings feel quite uncomfortable and prompting travelers to bundle up and seek shelter more frequently.

April Average Humidity in Windsor

This chart illustrates the average monthly humidity levels in Windsor, 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 Windsor is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%85%83%75%74%65%62%66%79%87%85%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Windsor

In Windsor 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 Windsor.

Maximum UV Index Levels in Windsor for April

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

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

This table compares monthly weather conditions in Windsor, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (26°F)77 mm (3.0 inches)87%moderate
February Weather-2°C (29°F)93 mm (3.7 inches)85%moderate
March Weather1°C (35°F)92 mm (3.6 inches)85%high
April Weather8°C (46°F)125 mm (4.9 inches)83%very high
May Weather14°C (58°F)135 mm (5.3 inches)75%very high
June Weather19°C (66°F)111 mm (4.4 inches)73%very high
July Weather22°C (72°F)129 mm (5.1 inches)65%very high
August Weather21°C (70°F)119 mm (4.7 inches)62%very high
September Weather17°C (63°F)99 mm (3.9 inches)66%very high
October Weather12°C (53°F)142 mm (5.6 inches)79%high
November Weather3°C (38°F)99 mm (3.9 inches)87%moderate
December Weather-1°C (31°F)93 mm (3.7 inches)85%low

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