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December Weather in Sherman, United States

Last updated: June 24, 2025

In December, the average temperature in Sherman, United States hovers around 2°C (36°F). Expect a chilly minimum of -20°C (-3°F) and a pleasant maximum of 20°C (68°F). Be prepared for some rain, with a total precipitation of approximately 52 mm (2.1 in) spread over 7 days. The air will feel quite damp, with an average humidity of 87%.

December Temperature in Sherman

In December in Sherman, the average temperature is 2°C (36°F). Maximum can reach 20°C (68°F) and minimum can be as low as -20°C (-3°F). Be prepared for a wide range of temperatures if you're traveling during this time, and pack accordingly!

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

The chart illustrates December temperature patterns in Sherman, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sherman, December typically has an average temperature of 2°C (36°F), with highs reaching up to 20°C (68°F) and lows dropping to around -20°C (-3°F).
JanFebMarAprMayJunJulAugSepOctNovDec293143526575777471574236
Data source: Temperature data for Sherman 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 Sherman

In Sherman in December, the precipitation amount is 52 mm (2.1 in) over the course of 7 days.

December Precipitation Trends in Sherman

The chart displays monthly precipitation patterns in Sherman, 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 Sherman, December typically receives around 52 mm (2.1 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec696913012814312411687641116852
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Sherman

In Sherman in December, humidity is 87%. With an average temperature of 2°C (36°F), this humidity feels like an unwelcome chill that seeps into your bones, making outdoor exploration feel damp and heavy, and encouraging travelers to seek the warmth of indoor attractions instead.

December Average Humidity in Sherman

This chart illustrates the average monthly humidity levels in Sherman, 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 Sherman is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%84%83%80%83%82%83%79%79%88%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Sherman

In Sherman 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 Sherman, you can check the information here.

Maximum UV Index Levels in Sherman for December

The chart shows the monthly maximum UV Index (UVI) for Sherman 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 Sherman typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910111198643
Data source: Sherman 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 Sherman Compares to Other Months

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

This table compares monthly weather conditions in Sherman, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)69 mm (2.7 inches)84%moderate
February Weather0°C (32°F)69 mm (2.7 inches)82%moderate
March Weather6°C (44°F)129 mm (5.1 inches)84%high
April Weather11°C (53°F)128 mm (5.1 inches)83%very high
May Weather18°C (66°F)143 mm (5.6 inches)80%very high
June Weather24°C (75°F)124 mm (4.9 inches)83%extreme
July Weather25°C (77°F)116 mm (4.6 inches)82%extreme
August Weather23°C (74°F)87 mm (3.4 inches)82%very high
September Weather22°C (71°F)64 mm (2.5 inches)79%very high
October Weather14°C (58°F)111 mm (4.4 inches)79%high
November Weather5°C (42°F)68 mm (2.7 inches)88%moderate
December Weather2°C (36°F)52 mm (2.1 inches)87%moderate

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