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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 6°C (44°F), with a minimum dipping as low as -10°C (15°F) and a maximum reaching up to 24°C (75°F). Expect about 60 mm (2.4 in) of precipitation over 6 days, contributing to an average humidity of 87%. Stay prepared for a mix of chilly days and occasional warmth!

December Temperature in Jay

In December in Jay, the average temperature is 6°C (44°F), with maximums reaching 24°C (75°F) and minimums plunging as low as -10°C (15°F). Be prepared for a wide range of temperatures when traveling during this month, and pack accordingly!

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 6°C (44°F), with highs reaching up to 24°C (75°F) and lows dropping to around -10°C (15°F).
JanFebMarAprMayJunJulAugSepOctNovDec384052586877817875614943
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 60 mm (2.4 in) spread over 6 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 60 mm (2.4 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec848114016717294101123741476260
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 87%. With an average temperature of 6°C (44°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration uncomfortable without proper layers and preparation.

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 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%78%76%78%83%83%78%68%64%70%83%87%
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 is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Jay, you can check the information here.

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 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710101111109753
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 Weather3°C (38°F)84 mm (3.3 inches)81%moderate
February Weather4°C (40°F)81 mm (3.2 inches)78%high
March Weather11°C (52°F)140 mm (5.5 inches)76%high
April Weather14°C (58°F)167 mm (6.6 inches)78%very high
May Weather20°C (68°F)172 mm (6.8 inches)83%very high
June Weather25°C (78°F)94 mm (3.7 inches)83%extreme
July Weather27°C (81°F)101 mm (4.0 inches)78%extreme
August Weather26°C (78°F)123 mm (4.8 inches)68%very high
September Weather24°C (75°F)74 mm (2.9 inches)64%very high
October Weather16°C (61°F)147 mm (5.8 inches)70%high
November Weather9°C (49°F)62 mm (2.4 inches)83%moderate
December Weather6°C (44°F)60 mm (2.4 inches)87%moderate

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