nomadseason

April Weather in Napoleon, United States

Last updated: June 24, 2025

In April, the average temperature in Napoleon, United States hovers around 4°C (39°F), making it a brisk time of year. Visitors should be prepared for a range of temperatures, with minimums dipping to -19°C (-2°F) and highs reaching up to 24°C (75°F). Expect about 35 mm (1.4 in) of precipitation spread over 8 days, accompanied by an average humidity of 79%. Pack accordingly to enjoy all that this charming destination has to offer!

April Temperature in Napoleon

In April in Napoleon, the average temperature is 4°C (39°F). Maximum temperatures can reach 24°C (75°F), while minimum temperatures can drop as low as -19°C (-2°F). Travelers should be prepared for a wide range of temperatures and dress in layers to stay comfortable during their visit.

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

The chart illustrates April temperature patterns in Napoleon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Napoleon, April typically has an average temperature of 4°C (39°F), with highs reaching up to 24°C (75°F) and lows dropping to around -19°C (-2°F).
JanFebMarAprMayJunJulAugSepOctNovDec131128395468726860433020
Data source: Temperature data for Napoleon generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Napoleon

In Napoleon in April, the precipitation amount is 35 mm (1.4 in) over the course of 8 days.

April Precipitation Trends in Napoleon

The chart displays monthly precipitation patterns in Napoleon, 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 Napoleon, April typically receives around 35 mm (1.4 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec151726356185739461661729
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

April Humidity in Napoleon

In Napoleon in April, humidity is 79%. With an average temperature of 4°C (39°F), this humidity feels like a chilly blanket enveloping you, making travel outdoors brisk and invigorating but also requiring extra layers to stay comfortable amidst the dampness.

April Average Humidity in Napoleon

This chart illustrates the average monthly humidity levels in Napoleon, 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 Napoleon is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%89%82%79%74%78%76%77%72%74%85%85%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Napoleon

In Napoleon 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 Napoleon.

Maximum UV Index Levels in Napoleon for April

The chart shows the monthly maximum UV Index (UVI) for Napoleon 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 Napoleon typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3559910997532
Data source: Napoleon 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 Napoleon Compares to Other Months

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

This table compares monthly weather conditions in Napoleon, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-10°C (14°F)15 mm (0.6 inches)87%moderate
February Weather-12°C (11°F)17 mm (0.7 inches)89%moderate
March Weather-2°C (29°F)26 mm (1.0 inches)82%moderate
April Weather4°C (39°F)35 mm (1.4 inches)79%very high
May Weather12°C (55°F)61 mm (2.4 inches)74%very high
June Weather20°C (68°F)85 mm (3.3 inches)78%very high
July Weather22°C (73°F)73 mm (2.9 inches)76%very high
August Weather20°C (69°F)94 mm (3.7 inches)77%very high
September Weather15°C (60°F)61 mm (2.4 inches)72%high
October Weather6°C (43°F)66 mm (2.6 inches)74%moderate
November Weather-1°C (30°F)17 mm (0.7 inches)85%moderate
December Weather-6°C (21°F)29 mm (1.1 inches)84%low

Compare Napoleon's Climate with Cities Worldwide