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December Weather in Grandview, United States

Last updated: June 24, 2025

In December, the average temperature in Grandview, United States hovers around 5°C (42°F). You'll experience a range from a chilly -14°C (7°F) to a warm 23°C (73°F). Expect about 107 mm (4.2 in) of precipitation over 10 days, accompanied by high humidity levels averaging 88%. 🌧️

December Temperature in Grandview

In December in Grandview, the average temperature is 5°C (42°F), with maximums reaching up to 23°C (73°F) and minimums dropping as low as -14°C (7°F). This wide temperature range suggests that travelers should be prepared for both mild and cold conditions during their visit.

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

The chart illustrates December temperature patterns in Grandview, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grandview, December typically has an average temperature of 5°C (42°F), with highs reaching up to 23°C (73°F) and lows dropping to around -14°C (7°F).
JanFebMarAprMayJunJulAugSepOctNovDec364049576977807773614642
Data source: Temperature data for Grandview 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 Grandview

In Grandview in December, the precipitation amount is 107 mm (4.2 in) accumulated over a period of 10 days.

December Precipitation Trends in Grandview

The chart displays monthly precipitation patterns in Grandview, 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 Grandview, December typically receives around 107 mm (4.2 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec9312913712513512184858912194107
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Grandview

In Grandview in December humidity is 88%. With an average temperature of 5°C (42°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less appealing and leading you to seek warmth indoors instead.

December Average Humidity in Grandview

This chart illustrates the average monthly humidity levels in Grandview, 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 Grandview is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%86%82%83%83%80%74%71%78%88%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Grandview

In Grandview 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 Grandview, you can check the information here.

Maximum UV Index Levels in Grandview for December

The chart shows the monthly maximum UV Index (UVI) for Grandview 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 Grandview typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3571010111099743
Data source: Grandview 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 Grandview Compares to Other Months

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

This table compares monthly weather conditions in Grandview, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)93 mm (3.6 inches)87%moderate
February Weather4°C (40°F)129 mm (5.1 inches)86%moderate
March Weather9°C (49°F)137 mm (5.4 inches)86%high
April Weather14°C (57°F)125 mm (4.9 inches)82%very high
May Weather20°C (69°F)135 mm (5.3 inches)82%very high
June Weather25°C (77°F)121 mm (4.8 inches)83%extreme
July Weather27°C (80°F)84 mm (3.3 inches)80%very high
August Weather25°C (78°F)84 mm (3.3 inches)74%very high
September Weather23°C (73°F)89 mm (3.5 inches)71%very high
October Weather16°C (62°F)121 mm (4.8 inches)78%high
November Weather8°C (46°F)94 mm (3.7 inches)88%moderate
December Weather5°C (42°F)107 mm (4.2 inches)88%moderate

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