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April Weather in Seymour, United States

Last updated: June 24, 2025

In Seymour, United States, the average temperature for April hovers around 12°C (55°F). This month can see temperatures ranging from a chilly -6°C (22°F) to a warm 30°C (86°F). Be prepared for rain, with an average precipitation of 174 mm (6.9 in) over 13 days. The air is quite humid too, with an average humidity level of 78%.

April Temperature in Seymour

In April in Seymour, the average temperature is 12°C (55°F), with maximums reaching up to 30°C (86°F) and minimums dropping as low as -6°C (22°F). This variation makes it essential for travelers to pack accordingly for both warm and cold weather.

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

The chart illustrates April temperature patterns in Seymour, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Seymour, April typically has an average temperature of 12°C (55°F), with highs reaching up to 30°C (86°F) and lows dropping to around -6°C (22°F).
JanFebMarAprMayJunJulAugSepOctNovDec343748546574787572584540
Data source: Temperature data for Seymour 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 Seymour

In Seymour in April, the precipitation amount is 174 mm (6.9 in), occurring over the course of 13 days.

April Precipitation Trends in Seymour

The chart displays monthly precipitation patterns in Seymour, 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 Seymour, April typically receives around 174 mm (6.9 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec809414717418310285109581377263
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Seymour

In Seymour in April humidity is 78%. With average temperature 12°C (55°F), this humidity feels like a damp chill that wraps around you, making outdoor activities less enjoyable and travel a bit uncomfortable unless you're layered appropriately.

April Average Humidity in Seymour

This chart illustrates the average monthly humidity levels in Seymour, 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 Seymour is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%78%76%78%83%83%78%68%64%70%83%87%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Seymour

In Seymour 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 Seymour.

Maximum UV Index Levels in Seymour for April

The chart shows the monthly maximum UV Index (UVI) for Seymour 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 Seymour typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710101111109753
Data source: Seymour 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 Seymour Compares to Other Months

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

This table compares monthly weather conditions in Seymour, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)80 mm (3.1 inches)81%moderate
February Weather3°C (37°F)94 mm (3.7 inches)78%high
March Weather9°C (48°F)147 mm (5.8 inches)76%high
April Weather12°C (55°F)174 mm (6.9 inches)78%very high
May Weather18°C (65°F)183 mm (7.2 inches)83%very high
June Weather23°C (75°F)102 mm (4.0 inches)83%extreme
July Weather26°C (78°F)85 mm (3.3 inches)78%extreme
August Weather24°C (76°F)109 mm (4.3 inches)68%very high
September Weather22°C (72°F)58 mm (2.3 inches)64%very high
October Weather14°C (58°F)137 mm (5.4 inches)70%high
November Weather7°C (45°F)72 mm (2.8 inches)83%moderate
December Weather5°C (41°F)63 mm (2.5 inches)87%moderate

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