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April Weather in Keller, United States

Last updated: June 24, 2025

In April, the average temperature in Keller, United States hovers around 18°C (65°F). Expect a temperature range that can dip to as low as 1°C (34°F) and rise to a sizzling 34°C (94°F). This month also sees 104 mm (4.1 in) of precipitation over about 8 days, creating an atmosphere of 78% humidity. Be prepared for varied conditions!

April Temperature in Keller

In April in Keller, the average temperature is 18°C (65°F), with maximums reaching up to 34°C (94°F) and minimums dipping as low as 1°C (34°F). Be prepared for a range of temperatures during your travels, bringing both lightweight clothing for the heat and warmer layers for the cooler moments.

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

The chart illustrates April temperature patterns in Keller, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Keller, April typically has an average temperature of 18°C (65°F), with highs reaching up to 34°C (94°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec464960657481858579675651
Data source: Temperature data for Keller 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 Keller

In Keller, in April, the precipitation amount is 104 mm (4.1 in) over a span of 8 days.

April Precipitation Trends in Keller

The chart displays monthly precipitation patterns in Keller, 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 Keller, April typically receives around 104 mm (4.1 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec5289100104150884087791335452
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Keller

In Keller in April, humidity is 78%. With an average temperature of 18°C (65°F), this humidity feels like a warm, enveloping blanket, making travel quite muggy and potentially uncomfortable, as it can leave you feeling sticky and fatigued more quickly than usual.

April Average Humidity in Keller

This chart illustrates the average monthly humidity levels in Keller, 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 Keller is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%79%78%78%81%78%73%66%65%72%82%87%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Keller

In Keller 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 Keller.

Maximum UV Index Levels in Keller for April

The chart shows the monthly maximum UV Index (UVI) for Keller 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 Keller typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111111110864
Data source: Keller 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 Keller Compares to Other Months

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

This table compares monthly weather conditions in Keller, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (46°F)52 mm (2.0 inches)80%moderate
February Weather9°C (49°F)89 mm (3.5 inches)79%high
March Weather16°C (60°F)100 mm (3.9 inches)78%very high
April Weather18°C (65°F)104 mm (4.1 inches)78%very high
May Weather24°C (75°F)150 mm (5.9 inches)81%extreme
June Weather27°C (82°F)88 mm (3.5 inches)78%extreme
July Weather30°C (85°F)40 mm (1.6 inches)73%extreme
August Weather29°C (85°F)87 mm (3.4 inches)66%extreme
September Weather26°C (79°F)79 mm (3.1 inches)65%very high
October Weather20°C (68°F)133 mm (5.2 inches)72%very high
November Weather13°C (56°F)54 mm (2.1 inches)82%high
December Weather11°C (51°F)52 mm (2.0 inches)87%moderate

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