May Weather in Firth, United States

Last updated: June 24, 2025

In May, the average temperature in Firth, United States hovers around 18°C (64°F). Expect a wide range, with minimum temperatures dipping to 1°C (35°F) and maximums soaring up to 37°C (99°F). During this period, rainfall averages 150 mm (5.9 in) over approximately 14 days, coupled with a relatively high average humidity of 78%.

May Temperature in Firth

In May in Firth, the average temperature is 18°C (64°F), with maximums reaching up to 37°C (99°F) and minimums dropping as low as 1°C (35°F). It's a great time to visit for those who enjoy mild weather, but be prepared for varying temperatures throughout the day.

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

The chart illustrates May temperature patterns in Firth, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Firth, May typically has an average temperature of 18°C (64°F), with highs reaching up to 37°C (99°F) and lows dropping to around 1°C (35°F).

Data source: Temperature data for Firth generated using information from the Copernicus Climate Change Service.

May Precipitation in Firth

In Firth in May, the total precipitation amount is 150 mm (5.9 in), occurring over a span of 14 days.

May Precipitation Trends in Firth

The chart displays monthly precipitation patterns in Firth, 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 Firth, May typically receives around 150 mm (5.9 inches) of precipitation spread over approximately 14 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

May Humidity in Firth

In Firth in May, humidity is 78%. With an average temperature of 18°C (64°F), this humidity feels like a warm, thick blanket wrapping around you, making traveling feel a bit sticky and sluggish, yet the coolness of the air tempers the intensity, inviting you to explore at a leisurely pace.

May Average Humidity in Firth

This chart illustrates the average monthly humidity levels in Firth, 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 Firth is approximately 78%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Firth

In Firth 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 Firth.

Maximum UV Index Levels in Firth for May

The chart shows the monthly maximum UV Index (UVI) for Firth 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 Firth typically reaches 10, which falls under the very high exposure category.

Data source: Firth 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 Firth Compares to Other Months

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

This table compares monthly weather conditions in Firth, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (27°F)	31 mm (1.2 inches)	76%	moderate
February Weather	-2°C (28°F)	29 mm (1.1 inches)	80%	moderate
March Weather	6°C (43°F)	93 mm (3.6 inches)	73%	high
April Weather	11°C (52°F)	53 mm (2.1 inches)	74%	very high
May Weather	18°C (64°F)	150 mm (5.9 inches)	78%	very high
June Weather	25°C (77°F)	105 mm (4.1 inches)	82%	very high
July Weather	26°C (80°F)	94 mm (3.7 inches)	83%	very high
August Weather	24°C (76°F)	97 mm (3.8 inches)	80%	very high
September Weather	21°C (71°F)	90 mm (3.6 inches)	75%	very high
October Weather	12°C (54°F)	130 mm (5.1 inches)	75%	high
November Weather	5°C (42°F)	27 mm (1.1 inches)	82%	moderate
December Weather	1°C (34°F)	33 mm (1.3 inches)	83%	moderate