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December Weather in Cooper, United States

Last updated: June 24, 2025

In December, the average temperature in Cooper, United States hovers around 10°C (51°F). Expect a range of conditions, with minimum temperatures dipping as low as -5°C (23°F) and maximums soaring to 27°C (80°F). Additionally, precipitation is notable, averaging 92 mm (3.6 in) over approximately 7 days, while humidity remains high at around 87%. Be prepared for a mix of weather as you explore!

December Temperature in Cooper

In December in Cooper, the average temperature is 10°C (51°F). Maximums can reach 27°C (80°F) and minimums can be as low as -5°C (23°F). Travelers should pack layers to stay comfortable in the variable weather conditions.

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

The chart illustrates December temperature patterns in Cooper, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cooper, December typically has an average temperature of 10°C (51°F), with highs reaching up to 27°C (80°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec464859647380838378675551
Data source: Temperature data for Cooper 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 Cooper

In Cooper in December, the precipitation amount is 92 mm (3.6 in) over the course of 7 days.

December Precipitation Trends in Cooper

The chart displays monthly precipitation patterns in Cooper, 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 Cooper, December typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec83130127192180986688811326292
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Cooper

In Cooper in December humidity is 87%. With an average temperature of 10°C (51°F), this humidity feels like a heavy blanket enveloping you, making outdoor activities uncomfortable and sticky, and often requiring frequent breaks to stay hydrated and cool.

December Average Humidity in Cooper

This chart illustrates the average monthly humidity levels in Cooper, 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 Cooper is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%79%78%78%81%78%73%66%65%72%82%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Cooper

In Cooper 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 Cooper for better planning.

Maximum UV Index Levels in Cooper for December

The chart shows the monthly maximum UV Index (UVI) for Cooper 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 Cooper typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111111110864
Data source: Cooper 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 Cooper Compares to Other Months

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

This table compares monthly weather conditions in Cooper, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (46°F)83 mm (3.3 inches)80%moderate
February Weather9°C (49°F)130 mm (5.1 inches)79%high
March Weather15°C (59°F)127 mm (5.0 inches)78%very high
April Weather18°C (64°F)192 mm (7.6 inches)78%very high
May Weather23°C (73°F)180 mm (7.1 inches)81%extreme
June Weather27°C (80°F)98 mm (3.9 inches)78%extreme
July Weather28°C (84°F)66 mm (2.6 inches)73%extreme
August Weather28°C (83°F)88 mm (3.5 inches)66%extreme
September Weather26°C (78°F)81 mm (3.2 inches)65%very high
October Weather19°C (67°F)132 mm (5.2 inches)72%very high
November Weather13°C (56°F)61 mm (2.4 inches)82%high
December Weather10°C (51°F)92 mm (3.6 inches)87%moderate

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