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April Weather in State Line, United States

Last updated: June 24, 2025

In April, the average temperature in State Line, United States hovers around 12°C (54°F). Expect some fluctuation, with the minimum dipping to a chilly -3°C (27°F) and the maximum reaching a pleasant 30°C (87°F). Be prepared for wet weather as well, with 101 mm (4.0 in) of precipitation spread across approximately 12 days. Additionally, the average humidity level is a moist 84%, creating a unique climate throughout the month.

April Temperature in State Line

In April in State Line, the average temperature is 12°C (54°F), with maximums reaching 30°C (87°F) and minimums dropping as low as -3°C (27°F). This diverse temperature range means travelers should pack layers to stay comfortable during their visit.

April Weather in State Line: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in State Line, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In State Line, April typically has an average temperature of 12°C (54°F), with highs reaching up to 30°C (87°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec343744546473787670594438
Data source: Temperature data for State Line 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 State Line

In State Line in April, the precipitation amount is 101 mm (4.0 in) spread over 12 days.

April Precipitation Trends in State Line

The chart displays monthly precipitation patterns in State Line, 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 State Line, April typically receives around 101 mm (4.0 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec62948810111890124871101058195
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in State Line

In State Line in April, humidity is 84%. With an average temperature of 12°C (54°F), this humidity feels like a damp blanket enveloping you, making travel uncomfortable and sticky.

April Average Humidity in State Line

This chart illustrates the average monthly humidity levels in State Line, 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 State Line is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%86%84%78%79%70%59%68%80%87%85%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in State Line

In State Line 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 State Line.

Maximum UV Index Levels in State Line for April

The chart shows the monthly maximum UV Index (UVI) for State Line 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 State Line typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098743
Data source: State Line 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 State Line Compares to Other Months

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

This table compares monthly weather conditions in State Line, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)62 mm (2.4 inches)86%moderate
February Weather3°C (38°F)94 mm (3.7 inches)86%moderate
March Weather6°C (44°F)88 mm (3.5 inches)86%high
April Weather12°C (54°F)101 mm (4.0 inches)84%very high
May Weather18°C (64°F)118 mm (4.7 inches)78%very high
June Weather23°C (73°F)90 mm (3.5 inches)79%very high
July Weather26°C (79°F)124 mm (4.9 inches)70%very high
August Weather24°C (76°F)87 mm (3.4 inches)59%very high
September Weather21°C (70°F)110 mm (4.3 inches)68%very high
October Weather15°C (60°F)104 mm (4.1 inches)80%high
November Weather7°C (45°F)81 mm (3.2 inches)86%moderate
December Weather3°C (38°F)95 mm (3.7 inches)85%moderate

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