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April Weather in Jefferson, United States

Last updated: June 24, 2025

In April, the average temperature in Jefferson, United States hovers around 18°C (65°F), but be prepared for a range that spans from a chilly 2°C (35°F) to a sweltering 32°C (89°F). With an average precipitation of 170 mm (6.7 in) spread over 11 days, the month is often marked by ample rainfall. Additionally, you can expect an average humidity of 79%, adding to the overall atmosphere of this captivating locale.

April Temperature in Jefferson

In April in Jefferson, the average temperature is 18°C (65°F). The maximum can reach 32°C (89°F), and the minimum can be as low as 2°C (35°F). This diverse temperature range makes Jefferson an ideal destination for travelers seeking both warm and cool experiences.

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

The chart illustrates April temperature patterns in Jefferson, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jefferson, April typically has an average temperature of 18°C (65°F), with highs reaching up to 32°C (89°F) and lows dropping to around 2°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec485160657481848379685652
Data source: Temperature data for Jefferson 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 Jefferson

In Jefferson in April, the precipitation amount is 170 mm (6.7 in) over the course of 11 days.

April Precipitation Trends in Jefferson

The chart displays monthly precipitation patterns in Jefferson, 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 Jefferson, April typically receives around 170 mm (6.7 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec1051491231701561029080929959125
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Jefferson

In Jefferson in April, humidity is 79%. With an average temperature of 18°C (65°F), this humidity feels like walking through a warm mist, making traveling slightly uncomfortable and sticky, but offering a refreshing escape when you find moments of shade or a breeze.

April Average Humidity in Jefferson

This chart illustrates the average monthly humidity levels in Jefferson, 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 Jefferson is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%78%79%81%77%72%65%63%70%82%88%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Jefferson

In Jefferson 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 Jefferson.

Maximum UV Index Levels in Jefferson for April

The chart shows the monthly maximum UV Index (UVI) for Jefferson 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 Jefferson typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478101111111110864
Data source: Jefferson 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 Jefferson Compares to Other Months

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

This table compares monthly weather conditions in Jefferson, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (48°F)105 mm (4.1 inches)82%moderate
February Weather10°C (51°F)149 mm (5.9 inches)80%high
March Weather16°C (61°F)123 mm (4.9 inches)78%very high
April Weather18°C (65°F)170 mm (6.7 inches)79%very high
May Weather23°C (74°F)156 mm (6.1 inches)81%extreme
June Weather27°C (81°F)102 mm (4.0 inches)77%extreme
July Weather29°C (84°F)90 mm (3.5 inches)72%extreme
August Weather29°C (84°F)80 mm (3.2 inches)65%extreme
September Weather26°C (79°F)92 mm (3.6 inches)63%very high
October Weather20°C (68°F)99 mm (3.9 inches)70%very high
November Weather13°C (56°F)59 mm (2.3 inches)82%high
December Weather11°C (52°F)125 mm (4.9 inches)88%moderate

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