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April Weather in Susanville, United States

Last updated: June 24, 2025

In April, the average temperature in Susanville, United States hovers around 6°C (44°F). However, don't be surprised by the temperature extremes, as it can dip to a chilly -10°C (15°F) or soar up to a balmy 25°C (78°F). During this time, expect about 48 mm (1.9 in) of precipitation spread across 8 days, contributing to an average humidity of 83%, which can make the air feel quite damp.

April Temperature in Susanville

In April in Susanville, the average temperature is 6°C (44°F). The maximum can reach 25°C (78°F), and the minimum can be as low as -10°C (15°F). Travelers should prepare for a wide range of temperatures, ensuring they pack both warm clothing and lighter layers.

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

The chart illustrates April temperature patterns in Susanville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Susanville, April typically has an average temperature of 6°C (44°F), with highs reaching up to 25°C (78°F) and lows dropping to around -10°C (15°F).
JanFebMarAprMayJunJulAugSepOctNovDec313135445364727061493930
Data source: Temperature data for Susanville 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 Susanville

In Susanville in April, the precipitation amount is 48 mm (1.9 in) over a span of 8 days.

April Precipitation Trends in Susanville

The chart displays monthly precipitation patterns in Susanville, 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 Susanville, April typically receives around 48 mm (1.9 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec10411292485314101020354979
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Susanville

In Susanville in April, humidity is 83%. With an average temperature of 6°C (44°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and potentially leading to a sense of heaviness in the air.

April Average Humidity in Susanville

This chart illustrates the average monthly humidity levels in Susanville, 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 Susanville is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%87%86%83%72%67%56%42%46%67%86%86%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Susanville

In Susanville 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 Susanville.

Maximum UV Index Levels in Susanville for April

The chart shows the monthly maximum UV Index (UVI) for Susanville 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 Susanville typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec45810111211119743
Data source: Susanville 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 Susanville Compares to Other Months

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

This table compares monthly weather conditions in Susanville, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)104 mm (4.1 inches)86%moderate
February Weather0°C (32°F)112 mm (4.4 inches)87%moderate
March Weather2°C (35°F)92 mm (3.6 inches)86%very high
April Weather6°C (44°F)48 mm (1.9 inches)83%very high
May Weather12°C (53°F)53 mm (2.1 inches)72%extreme
June Weather18°C (64°F)14 mm (0.5 inches)67%extreme
July Weather22°C (72°F)10 mm (0.4 inches)56%extreme
August Weather21°C (71°F)10 mm (0.4 inches)42%extreme
September Weather16°C (62°F)20 mm (0.8 inches)46%very high
October Weather9°C (49°F)35 mm (1.4 inches)67%high
November Weather4°C (39°F)49 mm (1.9 inches)86%moderate
December Weather-1°C (30°F)79 mm (3.1 inches)86%moderate

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