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April Weather in Seymour, United States

Last updated: June 24, 2025

In Seymour, United States, the weather in April is characterized by an average temperature of 18°C (65°F). However, be prepared for a temperature range that can swing from a chilly -2°C (29°F) to a sweltering 37°C (98°F). During this month, you can also expect around 72 mm (2.8 in) of precipitation over approximately 6 days, contributing to an average humidity level of 75%.

April Temperature in Seymour

In April in Seymour, the average temperature is 18°C (65°F). The maximum can reach 37°C (98°F) and the minimum can be as low as -2°C (29°F). It's best to pack layers and be prepared for a wide range of temperatures when traveling during this time.

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 18°C (65°F), with highs reaching up to 37°C (98°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec444659647582868578665448
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 total precipitation amount is 72 mm (2.8 in) over the course of 6 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 72 mm (2.8 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec34326872118491850105743033
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 75%. With an average temperature of 18°C (65°F), this humidity feels like a warm, enveloping blanket that can make outdoor exploration feel a bit stifling, potentially leading to discomfort during travel activities.

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 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%76%74%75%80%80%75%67%64%70%82%85%
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.
JanFebMarAprMayJunJulAugSepOctNovDec468101111121110864
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 Weather7°C (44°F)34 mm (1.3 inches)77%moderate
February Weather8°C (46°F)32 mm (1.3 inches)76%high
March Weather15°C (59°F)68 mm (2.7 inches)74%very high
April Weather18°C (65°F)72 mm (2.8 inches)75%very high
May Weather24°C (75°F)118 mm (4.7 inches)80%extreme
June Weather28°C (83°F)49 mm (1.9 inches)80%extreme
July Weather30°C (87°F)18 mm (0.7 inches)75%extreme
August Weather29°C (85°F)50 mm (2.0 inches)67%extreme
September Weather25°C (78°F)105 mm (4.1 inches)64%very high
October Weather19°C (66°F)74 mm (2.9 inches)70%very high
November Weather12°C (55°F)30 mm (1.2 inches)82%high
December Weather9°C (49°F)33 mm (1.3 inches)85%moderate

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