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December Weather in Excel, United States

Last updated: June 24, 2025

In December, the average temperature in Excel, United States hovers around 12°C (54°F). During this month, temperatures can dip as low as -3°C (26°F), while reaching a comfortable maximum of 27°C (80°F). Expect a touch of rain with 141 mm (5.6 in) of precipitation spread over approximately 11 days, contributing to an average humidity level of 86%.

December Temperature in Excel

In December in Excel, the average temperature is 12°C (54°F). The maximum can reach 27°C (80°F), while the minimum can drop as low as -3°C (26°F). Overall, this diverse range of temperatures makes Excel an exciting destination for travelers seeking both warmth and cooler experiences.

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

The chart illustrates December temperature patterns in Excel, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Excel, December typically has an average temperature of 12°C (54°F), with highs reaching up to 27°C (80°F) and lows dropping to around -3°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec515762667579818178715754
Data source: Temperature data for Excel 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 Excel

In Excel in December, the total precipitation amount is 141 mm (5.6 in) spread over 11 days.

December Precipitation Trends in Excel

The chart displays monthly precipitation patterns in Excel, 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 Excel, December typically receives around 141 mm (5.6 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec1071101101151111591371261169466141
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Excel

In Excel in December, humidity is 86%. With an average temperature of 12°C (54°F), this humidity feels like a damp blanket wrapping around you, making outdoor activities uncomfortable and travel challenging due to the heavy, muggy atmosphere.

December Average Humidity in Excel

This chart illustrates the average monthly humidity levels in Excel, 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 Excel 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 Excel

In Excel 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 Excel for better planning.

Maximum UV Index Levels in Excel for December

The chart shows the monthly maximum UV Index (UVI) for Excel 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 Excel typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec579111111111110864
Data source: Excel 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 Excel Compares to Other Months

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

This table compares monthly weather conditions in Excel, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (51°F)106 mm (4.2 inches)83%moderate
February Weather14°C (57°F)110 mm (4.3 inches)82%high
March Weather17°C (62°F)110 mm (4.3 inches)79%very high
April Weather19°C (67°F)115 mm (4.5 inches)77%extreme
May Weather24°C (75°F)111 mm (4.4 inches)74%extreme
June Weather26°C (80°F)159 mm (6.3 inches)70%extreme
July Weather27°C (81°F)137 mm (5.4 inches)78%extreme
August Weather27°C (81°F)126 mm (4.9 inches)78%extreme
September Weather26°C (79°F)116 mm (4.6 inches)79%very high
October Weather22°C (71°F)94 mm (3.7 inches)74%very high
November Weather14°C (58°F)66 mm (2.6 inches)83%high
December Weather12°C (54°F)141 mm (5.6 inches)86%moderate

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