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May Weather in Fillmore, United States

Last updated: June 24, 2025

In Fillmore, United States, the average temperature in May hovers around 18°C (65°F), making it a comfortable time to visit. However, be prepared for fluctuations, as temperatures can dip to a chilly -1°C (31°F) or rise to a warm 33°C (92°F). Expect about 141 mm (5.6 in) of precipitation spread over 15 days, and a notable average humidity of 79%.

May Temperature in Fillmore

In May in Fillmore, the average temperature is 18°C (65°F). The maximum can reach 33°C (92°F) and the minimum can be as low as -1°C (31°F). This variation makes Fillmore an intriguing travel destination, offering both warm days and cooler nights.

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

The chart illustrates May temperature patterns in Fillmore, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fillmore, May typically has an average temperature of 18°C (65°F), with highs reaching up to 33°C (92°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec303343526473777470574136
Data source: Temperature data for Fillmore 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 Fillmore

In Fillmore in May, the total precipitation amount is 141 mm (5.6 in) over a period of 15 days.

May Precipitation Trends in Fillmore

The chart displays monthly precipitation patterns in Fillmore, 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 Fillmore, May typically receives around 141 mm (5.6 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec8491126101141108101104691118982
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Fillmore

In Fillmore in May, 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.

May Average Humidity in Fillmore

This chart illustrates the average monthly humidity levels in Fillmore, 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 Fillmore is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%86%84%79%82%79%70%69%76%88%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Fillmore

In Fillmore in May, 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 Fillmore.

Maximum UV Index Levels in Fillmore for May

The chart shows the monthly maximum UV Index (UVI) for Fillmore 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 Fillmore typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111098643
Data source: Fillmore 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 Fillmore Compares to Other Months

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

This table compares monthly weather conditions in Fillmore, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)84 mm (3.3 inches)87%moderate
February Weather1°C (33°F)91 mm (3.6 inches)85%moderate
March Weather6°C (43°F)126 mm (5.0 inches)86%high
April Weather11°C (52°F)101 mm (4.0 inches)84%very high
May Weather18°C (65°F)141 mm (5.6 inches)79%very high
June Weather23°C (74°F)108 mm (4.3 inches)82%extreme
July Weather25°C (77°F)101 mm (4.0 inches)79%very high
August Weather23°C (74°F)104 mm (4.1 inches)70%very high
September Weather21°C (70°F)69 mm (2.7 inches)69%very high
October Weather14°C (58°F)111 mm (4.4 inches)76%high
November Weather5°C (42°F)89 mm (3.5 inches)88%moderate
December Weather2°C (36°F)82 mm (3.2 inches)87%moderate

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