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April Weather in Mullan, United States

Last updated: June 24, 2025

In April, the average temperature in Mullan, United States hovers around 4°C (40°F). Expect a wide range, with minimums plummeting to -9°C (15°F) and maximums soaring up to 26°C (79°F). During this month, 102 mm (4.0 in) of precipitation is typically spread over 16 days, contributing to an average humidity of 84%, creating a distinctly crisp atmosphere.

April Temperature in Mullan

In April in Mullan, the average temperature is 4°C (40°F). Maximum temperatures can reach 26°C (79°F), while the minimum can drop to as low as -9°C (15°F). It's advisable to pack layers to stay comfortable during your travels.

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

The chart illustrates April temperature patterns in Mullan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mullan, April typically has an average temperature of 4°C (40°F), with highs reaching up to 26°C (79°F) and lows dropping to around -9°C (15°F).
JanFebMarAprMayJunJulAugSepOctNovDec262333405158686756423427
Data source: Temperature data for Mullan 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 Mullan

In Mullan in April, the precipitation amount is 102 mm (4.0 in) spread over 16 days.

April Precipitation Trends in Mullan

The chart displays monthly precipitation patterns in Mullan, 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 Mullan, April typically receives around 102 mm (4.0 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec112151991029054122648108138136
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Mullan

In Mullan in April, humidity is 84%. With an average temperature of 4°C (40°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and requiring extra layers to stay warm and dry while traveling.

April Average Humidity in Mullan

This chart illustrates the average monthly humidity levels in Mullan, 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 Mullan is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%89%87%84%78%78%77%64%62%79%87%90%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Mullan

In Mullan in April, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Mullan.

Maximum UV Index Levels in Mullan for April

The chart shows the monthly maximum UV Index (UVI) for Mullan 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 Mullan typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2467991097532
Data source: Mullan 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 Mullan Compares to Other Months

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

This table compares monthly weather conditions in Mullan, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (26°F)112 mm (4.4 inches)89%low
February Weather-5°C (24°F)151 mm (5.9 inches)89%moderate
March Weather0°C (33°F)99 mm (3.9 inches)87%high
April Weather4°C (40°F)102 mm (4.0 inches)84%high
May Weather10°C (51°F)90 mm (3.5 inches)77%very high
June Weather15°C (59°F)54 mm (2.1 inches)78%very high
July Weather20°C (68°F)12 mm (0.5 inches)77%very high
August Weather19°C (67°F)26 mm (1.0 inches)64%very high
September Weather13°C (56°F)48 mm (1.9 inches)62%high
October Weather5°C (42°F)108 mm (4.3 inches)79%moderate
November Weather1°C (34°F)138 mm (5.4 inches)87%moderate
December Weather-3°C (28°F)136 mm (5.4 inches)90%low

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