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April Weather in Lyman, United States

Last updated: June 24, 2025

In Lyman, United States, the average temperature in April hovers around 4°C (39°F), with a minimum dipping to -15°C (5°F) and peaking at 23°C (73°F). This month sees about 50 mm (2.0 in) of precipitation spread over 10 days, contributing to an average humidity level of 74%. Prepare for a mix of chilly days and moderate rainfall as you explore!

April Temperature in Lyman

In April in Lyman, the average temperature is a chilly 4°C (39°F), with maximums that can soar to 23°C (73°F) and minimums plummeting to -15°C (5°F). Be prepared for a wide range of temperatures if you plan to travel during this month.

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

The chart illustrates April temperature patterns in Lyman, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lyman, April typically has an average temperature of 4°C (39°F), with highs reaching up to 23°C (73°F) and lows dropping to around -15°C (5°F).
JanFebMarAprMayJunJulAugSepOctNovDec222431394962696758423323
Data source: Temperature data for Lyman 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 Lyman

In Lyman in April, the precipitation amount is 50 mm (2.0 in) over a span of 10 days.

April Precipitation Trends in Lyman

The chart displays monthly precipitation patterns in Lyman, 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 Lyman, April typically receives around 50 mm (2.0 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec303467506724152429303231
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Lyman

In Lyman in April humidity is 74%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable and necessitating extra layers to stay warm while navigating the potentially slippery streets.

April Average Humidity in Lyman

This chart illustrates the average monthly humidity levels in Lyman, 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 Lyman is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%92%84%75%62%56%44%37%46%67%84%88%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Lyman

In Lyman in April, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Lyman.

Maximum UV Index Levels in Lyman for April

The chart shows the monthly maximum UV Index (UVI) for Lyman 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 Lyman typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101112121110753
Data source: Lyman 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 Lyman Compares to Other Months

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

This table compares monthly weather conditions in Lyman, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)30 mm (1.2 inches)91%moderate
February Weather-5°C (24°F)34 mm (1.3 inches)92%high
March Weather-1°C (31°F)67 mm (2.6 inches)84%very high
April Weather4°C (39°F)50 mm (2.0 inches)74%very high
May Weather9°C (49°F)67 mm (2.7 inches)62%extreme
June Weather17°C (62°F)24 mm (0.9 inches)56%extreme
July Weather21°C (70°F)15 mm (0.6 inches)44%extreme
August Weather19°C (67°F)24 mm (0.9 inches)37%extreme
September Weather14°C (58°F)29 mm (1.2 inches)46%very high
October Weather5°C (42°F)30 mm (1.2 inches)67%high
November Weather1°C (34°F)32 mm (1.2 inches)84%moderate
December Weather-5°C (23°F)31 mm (1.2 inches)88%moderate

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