nomadseason

December Weather in Hilliard, United States

Last updated: June 24, 2025

The average temperature in Hilliard, United States during December rests at a mild 14°C (57°F). Expect a temperature range that can dip as low as -4°C (25°F) and soar up to 28°C (83°F). This month brings about 104 mm (4.1 in) of precipitation spread over 7 days, accompanied by a notable average humidity of 85%.

December Temperature in Hilliard

In December in Hilliard, the average temperature is 14°C (57°F), with maximums reaching 28°C (83°F) and minimums dropping as low as -4°C (25°F). This variation makes it essential for travelers to pack accordingly, prepared for both warm afternoons and chilly evenings.

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

The chart illustrates December temperature patterns in Hilliard, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hilliard, December typically has an average temperature of 14°C (57°F), with highs reaching up to 28°C (83°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec546064697579818179736157
Data source: Temperature data for Hilliard generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Hilliard

In Hilliard in December, the precipitation amount is 104 mm (4.1 in) over a span of 7 days.

December Precipitation Trends in Hilliard

The chart displays monthly precipitation patterns in Hilliard, 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 Hilliard, December typically receives around 104 mm (4.1 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec53684368781561631631375666104
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Hilliard

In Hilliard in December, humidity is 85%. With an average temperature of 14°C (57°F), this humidity feels like a thick blanket enveloping you, making travel feel heavy and sluggish.

December Average Humidity in Hilliard

This chart illustrates the average monthly humidity levels in Hilliard, 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 Hilliard is approximately 85%, 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 December generated using information from the Copernicus Climate Change Service.

December UV Index in Hilliard

In Hilliard in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Hilliard for better planning.

Maximum UV Index Levels in Hilliard for December

The chart shows the monthly maximum UV Index (UVI) for Hilliard 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 Hilliard typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec579101111111110864
Data source: Hilliard 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 Hilliard Compares to Other Months

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

This table compares monthly weather conditions in Hilliard, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (55°F)53 mm (2.1 inches)84%moderate
February Weather16°C (61°F)68 mm (2.7 inches)79%high
March Weather18°C (64°F)43 mm (1.7 inches)78%very high
April Weather21°C (69°F)68 mm (2.7 inches)72%very high
May Weather24°C (76°F)78 mm (3.1 inches)72%extreme
June Weather26°C (79°F)156 mm (6.2 inches)74%extreme
July Weather27°C (81°F)163 mm (6.4 inches)82%extreme
August Weather27°C (81°F)163 mm (6.4 inches)82%extreme
September Weather26°C (79°F)137 mm (5.4 inches)83%very high
October Weather23°C (74°F)56 mm (2.2 inches)79%very high
November Weather16°C (62°F)66 mm (2.6 inches)82%high
December Weather14°C (57°F)104 mm (4.1 inches)85%moderate

Compare Hilliard's Climate with Cities Worldwide