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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 9°C (49°F). Be prepared for a temperature range that can dip as low as -11°C (12°F) and climb up to a warm 31°C (88°F). During this month, expect about 64 mm (2.5 in) of precipitation spread over 10 days, and a relatively high average humidity of 77%.

April Temperature in Jefferson

In April in Jefferson, the average temperature is 9°C (49°F), with maximums reaching 31°C (88°F) and minimums dipping as low as -11°C (12°F). Be prepared for a wide range of temperatures when traveling to Jefferson this month.

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 9°C (49°F), with highs reaching up to 31°C (88°F) and lows dropping to around -11°C (12°F).
JanFebMarAprMayJunJulAugSepOctNovDec222339486274767368523830
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 64 mm (2.5 in) over a span of 10 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 64 mm (2.5 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec3139766416410476941001203637
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 77%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that seeps into your bones, making outdoor explorations feel colder and more uncomfortable than the thermometer suggests.

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 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%80%77%78%77%81%81%77%73%75%85%83%
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 is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to 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 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35589111098643
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 Weather-6°C (22°F)31 mm (1.2 inches)78%moderate
February Weather-5°C (23°F)39 mm (1.5 inches)80%moderate
March Weather4°C (39°F)76 mm (3.0 inches)77%moderate
April Weather9°C (49°F)64 mm (2.5 inches)77%very high
May Weather16°C (62°F)163 mm (6.4 inches)77%very high
June Weather23°C (74°F)104 mm (4.1 inches)81%extreme
July Weather25°C (77°F)76 mm (3.0 inches)81%very high
August Weather23°C (73°F)94 mm (3.7 inches)77%very high
September Weather20°C (68°F)100 mm (3.9 inches)73%very high
October Weather11°C (52°F)120 mm (4.7 inches)75%high
November Weather3°C (38°F)36 mm (1.4 inches)85%moderate
December Weather-1°C (30°F)37 mm (1.5 inches)83%moderate

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