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December Weather in Granger, United States

Last updated: June 24, 2025

In December, the average temperature in Granger, United States hovers around 1°C (35°F). Expect chilly days with minimum temperatures dipping to -10°C (15°F) and highs reaching a comfortable 19°C (67°F). You'll likely experience around 42 mm (1.6 in) of precipitation spread over 9 days, accompanied by a notable average humidity of 88%. Prepare for a mix of weather as you navigate this cool, damp month!

December Temperature in Granger

In December in Granger, the average temperature is 1°C (35°F). Maximums can reach 19°C (67°F) and minimums can be as low as -10°C (15°F). It’s advisable to pack layers and prepare for chilly conditions, but don’t forget to enjoy the milder afternoons while exploring!

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

The chart illustrates December temperature patterns in Granger, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Granger, December typically has an average temperature of 1°C (35°F), with highs reaching up to 19°C (67°F) and lows dropping to around -10°C (15°F).
JanFebMarAprMayJunJulAugSepOctNovDec343544536371797867524135
Data source: Temperature data for Granger 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 Granger

In Granger in December, the precipitation amount is 42 mm (1.6 in) over the course of 9 days.

December Precipitation Trends in Granger

The chart displays monthly precipitation patterns in Granger, 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 Granger, December typically receives around 42 mm (1.6 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec515227241861510273442
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Granger

In Granger in December, humidity is 88%. With an average temperature of 1°C (35°F), this humidity feels like a chilly embrace, making travel quite uncomfortable as the cold moisture clings to your skin, leaving you feeling damp and frigid.

December Average Humidity in Granger

This chart illustrates the average monthly humidity levels in Granger, 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 Granger is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%87%84%81%82%79%63%62%83%89%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Granger

In Granger in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Granger, you can visit Hourly UV Index in Granger.

Maximum UV Index Levels in Granger for December

The chart shows the monthly maximum UV Index (UVI) for Granger 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 Granger typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec23579101097532
Data source: Granger 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 Granger Compares to Other Months

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

This table compares monthly weather conditions in Granger, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)51 mm (2.0 inches)86%low
February Weather2°C (36°F)51 mm (2.0 inches)86%moderate
March Weather7°C (44°F)27 mm (1.1 inches)87%moderate
April Weather11°C (53°F)24 mm (1.0 inches)84%high
May Weather17°C (63°F)18 mm (0.7 inches)81%very high
June Weather22°C (72°F)6 mm (0.2 inches)82%very high
July Weather26°C (79°F)1 mm (0.0 inches)79%very high
August Weather25°C (78°F)5 mm (0.2 inches)63%very high
September Weather19°C (67°F)10 mm (0.4 inches)62%high
October Weather11°C (52°F)27 mm (1.1 inches)83%moderate
November Weather5°C (42°F)34 mm (1.3 inches)89%moderate
December Weather1°C (35°F)42 mm (1.6 inches)88%low

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