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April Weather in Saint Clair, United States

Last updated: June 24, 2025

In Saint Clair, United States, the average temperature in April hovers around 7°C (46°F). You might experience a chilly minimum of -5°C (24°F), while highs can reach a pleasant 24°C (76°F). Expect 97 mm (3.8 in) of precipitation over approximately 14 days, and be prepared for high humidity levels at an average of 86%.

April Temperature in Saint Clair

In April in Saint Clair, the average temperature is 7°C (46°F). Maximum temperatures can reach up to 24°C (76°F), while the minimum can drop as low as -5°C (24°F). This makes Saint Clair a perfect destination for travelers looking to experience a range of weather conditions.

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

The chart illustrates April temperature patterns in Saint Clair, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint Clair, April typically has an average temperature of 7°C (46°F), with highs reaching up to 24°C (76°F) and lows dropping to around -5°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec272836455768747266544033
Data source: Temperature data for Saint Clair 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 Clair

In Saint Clair in April, the total precipitation amount is 97 mm (3.8 in) spread over 14 days.

April Precipitation Trends in Saint Clair

The chart displays monthly precipitation patterns in Saint Clair, 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 Clair, April typically receives around 97 mm (3.8 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec70737097105938280771138263
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Saint Clair

In Saint Clair in April humidity is 86%. With an average temperature of 7°C (46°F), this humidity feels like wrapping yourself in a damp blanket, making travel uncomfortable and heavy, as the cold air mixes with the muggy atmosphere, leaving you longing for a warm, dry refuge.

April Average Humidity in Saint Clair

This chart illustrates the average monthly humidity levels in Saint Clair, 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 Clair is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%85%86%80%80%80%81%80%84%90%86%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Saint Clair

In Saint Clair 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 Clair.

Maximum UV Index Levels in Saint Clair for April

The chart shows the monthly maximum UV Index (UVI) for Saint Clair 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 Clair typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2458910997542
Data source: Saint Clair 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 Clair Compares to Other Months

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

This table compares monthly weather conditions in Saint Clair, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)70 mm (2.8 inches)88%low
February Weather-2°C (29°F)73 mm (2.9 inches)87%moderate
March Weather2°C (36°F)70 mm (2.7 inches)85%moderate
April Weather7°C (46°F)97 mm (3.8 inches)86%very high
May Weather14°C (58°F)105 mm (4.1 inches)80%very high
June Weather20°C (69°F)93 mm (3.6 inches)80%very high
July Weather23°C (74°F)82 mm (3.2 inches)80%very high
August Weather22°C (73°F)80 mm (3.2 inches)80%very high
September Weather19°C (66°F)77 mm (3.0 inches)80%high
October Weather12°C (55°F)113 mm (4.5 inches)84%moderate
November Weather4°C (40°F)82 mm (3.2 inches)89%moderate
December Weather0°C (33°F)63 mm (2.5 inches)86%low

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