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April Weather in Crystal Lakes, United States

Last updated: June 24, 2025

In April, the average temperature in Crystal Lakes, United States hovers around 11°C (52°F). Expect a chill as lows can dip to -6°C (21°F), while highs may reach up to 29°C (84°F). With 100 mm (4.0 in) of precipitation spread over 13 days, don't forget your umbrella! The air is quite humid too, with an average humidity level of 85%.

April Temperature in Crystal Lakes

In April in Crystal Lakes, the average temperature is 11°C (52°F). Maximums can reach 29°C (84°F), and minimums can drop as low as -6°C (21°F). Be prepared for a wide range of temperatures during your travels, making layers essential for comfort.

April Weather in Crystal Lakes: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Crystal Lakes, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Crystal Lakes, April typically has an average temperature of 11°C (52°F), with highs reaching up to 29°C (84°F) and lows dropping to around -6°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec303342526472767369574236
Data source: Temperature data for Crystal Lakes 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 Crystal Lakes

In Crystal Lakes in April, the precipitation amount is 100 mm (4.0 in) over the course of 13 days.

April Precipitation Trends in Crystal Lakes

The chart displays monthly precipitation patterns in Crystal Lakes, 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 Crystal Lakes, April typically receives around 100 mm (4.0 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec75103105100125122968786999592
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Crystal Lakes

In Crystal Lakes in April, humidity is 85%. With an average temperature of 11°C (52°F), this humidity feels like a damp blanket wrapping around you, making travel quite uncomfortable as the air feels heavy and can sap your energy.

April Average Humidity in Crystal Lakes

This chart illustrates the average monthly humidity levels in Crystal Lakes, 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 Crystal Lakes is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%87%85%81%82%81%73%73%78%89%87%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Crystal Lakes

In Crystal Lakes 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 Crystal Lakes.

Maximum UV Index Levels in Crystal Lakes for April

The chart shows the monthly maximum UV Index (UVI) for Crystal Lakes 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 Crystal Lakes typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098643
Data source: Crystal Lakes 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 Crystal Lakes Compares to Other Months

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

This table compares monthly weather conditions in Crystal Lakes, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)75 mm (3.0 inches)88%moderate
February Weather1°C (34°F)103 mm (4.1 inches)88%moderate
March Weather6°C (42°F)105 mm (4.1 inches)87%high
April Weather11°C (52°F)100 mm (4.0 inches)85%very high
May Weather18°C (64°F)125 mm (4.9 inches)81%very high
June Weather22°C (72°F)122 mm (4.8 inches)82%very high
July Weather24°C (76°F)96 mm (3.8 inches)81%very high
August Weather23°C (74°F)87 mm (3.4 inches)73%very high
September Weather21°C (69°F)86 mm (3.4 inches)73%very high
October Weather14°C (58°F)99 mm (3.9 inches)78%high
November Weather5°C (42°F)95 mm (3.7 inches)89%moderate
December Weather2°C (36°F)92 mm (3.6 inches)87%moderate

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