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December Weather in Junior, United States

Last updated: June 24, 2025

In Junior, United States, the average temperature in December hovers around 3°C (38°F). You can expect the mercury to dip as low as -16°C (3°F) and rise to a mild 19°C (67°F). During this time, the region experiences approximately 138 mm (5.4 in) of precipitation spread over 15 days, accompanied by an average humidity of 86%.

December Temperature in Junior

In December in Junior, the average temperature is 3°C (38°F), with maximums reaching up to 19°C (67°F) and minimums dipping as low as -16°C (3°F). Be prepared for a wide range of temperatures and dress in layers if you plan to travel during this time.

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

The chart illustrates December temperature patterns in Junior, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Junior, December typically has an average temperature of 3°C (38°F), with highs reaching up to 19°C (67°F) and lows dropping to around -16°C (3°F).
JanFebMarAprMayJunJulAugSepOctNovDec323843526268727066574237
Data source: Temperature data for Junior 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 Junior

In Junior in December, the total precipitation amount is 138 mm (5.4 in) recorded over the course of 15 days.

December Precipitation Trends in Junior

The chart displays monthly precipitation patterns in Junior, 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 Junior, December typically receives around 138 mm (5.4 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec10916412816517314511212211013094138
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Junior

In Junior in December humidity is 86%. With an average temperature of 3°C (38°F), this humidity feels like a damp chill that seeps through your layers, making traveling uncomfortable as breath clouds visibly in the crisp air.

December Average Humidity in Junior

This chart illustrates the average monthly humidity levels in Junior, 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 Junior is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%88%87%82%84%82%73%74%81%89%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Junior

In Junior 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 Junior, you can check the information here.

Maximum UV Index Levels in Junior for December

The chart shows the monthly maximum UV Index (UVI) for Junior 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 Junior typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101010108753
Data source: Junior 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 Junior Compares to Other Months

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

This table compares monthly weather conditions in Junior, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)109 mm (4.3 inches)88%moderate
February Weather3°C (38°F)164 mm (6.4 inches)88%moderate
March Weather6°C (43°F)128 mm (5.1 inches)88%high
April Weather11°C (52°F)165 mm (6.5 inches)86%very high
May Weather16°C (62°F)173 mm (6.8 inches)82%very high
June Weather20°C (68°F)145 mm (5.7 inches)84%very high
July Weather22°C (72°F)112 mm (4.4 inches)82%very high
August Weather21°C (70°F)122 mm (4.8 inches)73%very high
September Weather19°C (66°F)110 mm (4.3 inches)73%very high
October Weather14°C (57°F)130 mm (5.1 inches)81%high
November Weather6°C (43°F)94 mm (3.7 inches)89%moderate
December Weather3°C (38°F)138 mm (5.4 inches)86%moderate

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