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May Weather in Callahan, United States

Last updated: June 24, 2025

In Callahan, United States, the average temperature in May hovers around 24°C (76°F), with a minimum dipping to 10°C (51°F) and a maximum soaring to 38°C (100°F). Expect 86 mm (3.4 in) of precipitation over approximately 10 days, while the average humidity lingers at a comfortable 72%.

May Temperature in Callahan

In May in Callahan, the average temperature is 24°C (76°F). The maximum can reach 38°C (100°F), while the minimum can drop as low as 10°C (51°F). Be prepared for a warm climate with a chance of cooler evenings when traveling.

May Weather in Callahan: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Callahan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Callahan, May typically has an average temperature of 24°C (76°F), with highs reaching up to 38°C (100°F) and lows dropping to around 10°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec556164697579818179746358
Data source: Temperature data for Callahan 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.

May Precipitation in Callahan

In Callahan in May, the precipitation amount is 86 mm (3.4 in) over the course of 10 days.

May Precipitation Trends in Callahan

The chart displays monthly precipitation patterns in Callahan, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Callahan, May typically receives around 86 mm (3.4 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec4569416686170196190157746485
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Callahan

In Callahan in May humidity is 72%. With an average temperature of 24°C (76°F), this humidity feels like a warm, muggy embrace that can make outdoor activities a bit uncomfortable, so travelers should stay hydrated and plan for frequent breaks in the shade.

May Average Humidity in Callahan

This chart illustrates the average monthly humidity levels in Callahan, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Callahan is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%79%78%73%72%74%82%82%83%79%82%85%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Callahan

In Callahan in May, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Callahan.

Maximum UV Index Levels in Callahan for May

The chart shows the monthly maximum UV Index (UVI) for Callahan in May, 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 May, the maximum UV index in Callahan typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec579111111111110865
Data source: Callahan May 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 May Weather in Callahan Compares to Other Months

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

This table compares monthly weather conditions in Callahan, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather13°C (56°F)45 mm (1.8 inches)84%moderate
February Weather16°C (61°F)69 mm (2.7 inches)79%high
March Weather18°C (64°F)41 mm (1.6 inches)78%very high
April Weather21°C (70°F)66 mm (2.6 inches)72%extreme
May Weather24°C (76°F)86 mm (3.4 inches)72%extreme
June Weather26°C (80°F)170 mm (6.7 inches)74%extreme
July Weather27°C (81°F)196 mm (7.7 inches)82%extreme
August Weather27°C (81°F)190 mm (7.5 inches)82%extreme
September Weather26°C (80°F)157 mm (6.2 inches)83%very high
October Weather23°C (74°F)74 mm (2.9 inches)79%very high
November Weather17°C (63°F)64 mm (2.5 inches)82%high
December Weather14°C (58°F)85 mm (3.3 inches)85%moderate

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