December Weather in Hayes, United States

Last updated: June 24, 2025

In Hayes, United States, the average temperature in December hovers around 14°C (58°F). Be prepared for a range of temperatures, with a minimum of -1°C (31°F) and a maximum reaching 26°C (80°F). Expect 111 mm (4.4 in) of precipitation over approximately 10 days, accompanied by a high average humidity of 83%.

December Temperature in Hayes

In December in Hayes, the average temperature is 14°C (58°F). Maximums can reach 26°C (80°F), while minimums can drop as low as -1°C (31°F). This diverse temperature range makes Hayes a perfect destination for travelers who enjoy both mild and cooler weather.

December Weather in Hayes: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Hayes, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hayes, December typically has an average temperature of 14°C (58°F), with highs reaching up to 26°C (80°F) and lows dropping to around -1°C (31°F).

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

December Precipitation in Hayes

In Hayes in December, the precipitation amount is 111 mm (4.4 in) over a span of 10 days.

December Precipitation Trends in Hayes

The chart displays monthly precipitation patterns in Hayes, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Hayes, December typically receives around 111 mm (4.4 inches) of precipitation spread over approximately 10 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

December Humidity in Hayes

In Hayes in December, humidity is 83%. With an average temperature of 14°C (58°F), this humidity feels like a thick blanket enveloping you, making exploration feel heavier and sweatier, so be prepared for a slower pace while traveling.

December Average Humidity in Hayes

This chart illustrates the average monthly humidity levels in Hayes, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Hayes is approximately 83%, offering insight into how humid the weather typically is during this month.

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

December UV Index in Hayes

In Hayes in December, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Hayes.

Maximum UV Index Levels in Hayes for December

The chart shows the monthly maximum UV Index (UVI) for Hayes in December, 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 December, the maximum UV index in Hayes typically reaches 5, which falls under the moderate exposure category.

Data source: Hayes December 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 December Weather in Hayes Compares to Other Months

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

This table compares monthly weather conditions in Hayes, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (54°F)	104 mm (4.1 inches)	79%	moderate
February Weather	15°C (59°F)	102 mm (4.0 inches)	80%	very high
March Weather	18°C (66°F)	60 mm (2.4 inches)	78%	very high
April Weather	21°C (70°F)	154 mm (6.1 inches)	81%	very high
May Weather	25°C (77°F)	170 mm (6.7 inches)	79%	extreme
June Weather	27°C (82°F)	160 mm (6.3 inches)	75%	extreme
July Weather	28°C (83°F)	158 mm (6.2 inches)	74%	extreme
August Weather	28°C (83°F)	185 mm (7.3 inches)	73%	extreme
September Weather	27°C (80°F)	169 mm (6.7 inches)	75%	very high
October Weather	23°C (73°F)	122 mm (4.8 inches)	75%	very high
November Weather	16°C (61°F)	81 mm (3.2 inches)	79%	high
December Weather	14°C (58°F)	111 mm (4.4 inches)	83%	moderate