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December Weather in Jay, United States

Last updated: June 24, 2025

In December, the average temperature in Jay, United States hovers around 13°C (55°F). Be prepared for a range of temperatures, as it can dip to a chilly -5°C (24°F) and peak at a warm 27°C (81°F). Expect 142 mm (5.6 in) of precipitation over approximately 12 days, contributing to an average humidity of 86%.

December Temperature in Jay

In December in Jay, the average temperature is 13°C (55°F). Maximum temperatures can reach 27°C (81°F), while minimums can drop as low as -5°C (24°F). Be prepared for a mix of mild and chilly conditions when traveling during this time.

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

The chart illustrates December temperature patterns in Jay, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jay, December typically has an average temperature of 13°C (55°F), with highs reaching up to 27°C (81°F) and lows dropping to around -5°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec525862677579818178715855
Data source: Temperature data for Jay 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.

December Precipitation in Jay

In Jay in December, the total precipitation amount is 142 mm (5.6 in), occurring over the course of 12 days.

December Precipitation Trends in Jay

The chart displays monthly precipitation patterns in Jay, 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 Jay, December typically receives around 142 mm (5.6 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec91121921191241911491661439960142
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Jay

In Jay in December humidity is 86%. With an average temperature of 13°C (55°F), this humidity feels like a damp blanket clinging to your skin, making travel quite uncomfortable and urging you to seek cooler, dryer spots.

December Average Humidity in Jay

This chart illustrates the average monthly humidity levels in Jay, 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 Jay is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%82%79%77%74%70%78%78%79%74%83%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Jay

In Jay 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 Jay for better planning.

Maximum UV Index Levels in Jay for December

The chart shows the monthly maximum UV Index (UVI) for Jay 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 Jay typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589111111121110864
Data source: Jay 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 Jay Compares to Other Months

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

This table compares monthly weather conditions in Jay, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather11°C (52°F)91 mm (3.6 inches)83%moderate
February Weather14°C (58°F)121 mm (4.8 inches)82%very high
March Weather17°C (63°F)92 mm (3.6 inches)79%very high
April Weather19°C (67°F)119 mm (4.7 inches)77%extreme
May Weather24°C (75°F)124 mm (4.9 inches)74%extreme
June Weather26°C (80°F)191 mm (7.5 inches)70%extreme
July Weather27°C (81°F)149 mm (5.9 inches)78%extreme
August Weather27°C (81°F)166 mm (6.5 inches)78%extreme
September Weather26°C (78°F)143 mm (5.6 inches)79%very high
October Weather22°C (72°F)99 mm (3.9 inches)74%very high
November Weather15°C (58°F)60 mm (2.4 inches)83%high
December Weather13°C (55°F)142 mm (5.6 inches)86%moderate

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