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December Weather in La Plata, United States

Last updated: June 24, 2025

In December, the average temperature in La Plata, United States hovers around 2°C (35°F), with a minimum dip to -20°C (-4°F) and a pleasant maximum reaching 23°C (73°F). Expect about 39 mm (1.6 in) of precipitation over 6 days, contributing to a notably high average humidity of 86%.

December Temperature in La Plata

In December in La Plata, the average temperature is 2°C (35°F), with maximums reaching up to 23°C (73°F) and minimums dropping as low as -20°C (-4°F). This variation in temperature makes La Plata an ideal destination for travelers seeking diverse weather experiences during their trip.

December Weather in La Plata: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in La Plata, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In La Plata, December typically has an average temperature of 2°C (35°F), with highs reaching up to 23°C (73°F) and lows dropping to around -20°C (-4°F).
JanFebMarAprMayJunJulAugSepOctNovDec283043526575797570554135
Data source: Temperature data for La Plata 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 La Plata

In La Plata in December, the precipitation amount is 39 mm (1.6 in) over the course of 6 days.

December Precipitation Trends in La Plata

The chart displays monthly precipitation patterns in La Plata, 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 La Plata, December typically receives around 39 mm (1.6 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec5852111921751238690881185040
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in La Plata

In La Plata in December humidity is 86%. With an average temperature of 2°C (35°F), this humidity feels like a damp chill that seeps into your bones, making traveling quite uncomfortable as your clothes cling to you and the cold air cuts through any warmth you try to find.

December Average Humidity in La Plata

This chart illustrates the average monthly humidity levels in La Plata, 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 La Plata is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%78%75%77%82%83%81%78%72%72%84%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in La Plata

In La Plata 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 La Plata, you can check the information here.

Maximum UV Index Levels in La Plata for December

The chart shows the monthly maximum UV Index (UVI) for La Plata 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 La Plata typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3569101111109643
Data source: La Plata 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 La Plata Compares to Other Months

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

This table compares monthly weather conditions in La Plata, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)58 mm (2.3 inches)80%moderate
February Weather-1°C (31°F)52 mm (2.0 inches)78%moderate
March Weather6°C (44°F)111 mm (4.4 inches)75%high
April Weather11°C (52°F)92 mm (3.6 inches)77%very high
May Weather18°C (65°F)175 mm (6.9 inches)82%very high
June Weather24°C (76°F)123 mm (4.9 inches)83%extreme
July Weather26°C (79°F)86 mm (3.4 inches)81%extreme
August Weather24°C (75°F)90 mm (3.5 inches)78%very high
September Weather21°C (70°F)87 mm (3.4 inches)72%very high
October Weather13°C (56°F)118 mm (4.6 inches)72%high
November Weather5°C (42°F)50 mm (2.0 inches)84%moderate
December Weather2°C (35°F)39 mm (1.6 inches)86%moderate

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