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December Weather in Snowflake, United States

Last updated: June 24, 2025

In December, the average temperature in Snowflake, United States hovers around 3°C (38°F), with a minimum dipping down to -13°C (9°F) and a maximum soaring up to 20°C (67°F). Expect around 20 mm (0.8 in) of precipitation spread over 4 days, contributing to an average humidity of 82%. Make sure to pack accordingly!

December Temperature in Snowflake

In December in Snowflake, the average temperature is 3°C (38°F). Maximum temperatures can reach 20°C (67°F), while minimums can dip as low as -13°C (9°F). It's advisable to pack layers to stay comfortable during your travels.

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

The chart illustrates December temperature patterns in Snowflake, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Snowflake, December typically has an average temperature of 3°C (38°F), with highs reaching up to 20°C (67°F) and lows dropping to around -13°C (9°F).
JanFebMarAprMayJunJulAugSepOctNovDec374148576577787771584838
Data source: Temperature data for Snowflake 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 Snowflake

In Snowflake in December, the total precipitation amount is 20 mm (0.8 in) spread over a period of 4 days.

December Precipitation Trends in Snowflake

The chart displays monthly precipitation patterns in Snowflake, 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 Snowflake, December typically receives around 20 mm (0.8 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec25302511115462423221220
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Snowflake

In Snowflake in December humidity is 82%. With an average temperature of 3°C (38°F), this humidity feels like a chilly blanket wrapped around you, making outdoor adventures quite uncomfortable and requiring extra layers to stay warm while exploring.

December Average Humidity in Snowflake

This chart illustrates the average monthly humidity levels in Snowflake, 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 Snowflake is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%83%72%63%46%35%33%41%59%70%79%82%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Snowflake

In Snowflake in December, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Snowflake.

Maximum UV Index Levels in Snowflake for December

The chart shows the monthly maximum UV Index (UVI) for Snowflake 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 Snowflake typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec5710111213131211865
Data source: Snowflake 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 Snowflake Compares to Other Months

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

This table compares monthly weather conditions in Snowflake, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)25 mm (1.0 inches)80%moderate
February Weather5°C (41°F)30 mm (1.2 inches)83%high
March Weather9°C (49°F)25 mm (1.0 inches)72%very high
April Weather14°C (58°F)11 mm (0.4 inches)63%extreme
May Weather18°C (65°F)11 mm (0.4 inches)46%extreme
June Weather25°C (77°F)5 mm (0.2 inches)35%extreme
July Weather25°C (78°F)46 mm (1.8 inches)33%extreme
August Weather25°C (77°F)24 mm (1.0 inches)41%extreme
September Weather21°C (71°F)23 mm (0.9 inches)59%extreme
October Weather14°C (58°F)22 mm (0.8 inches)70%very high
November Weather9°C (48°F)12 mm (0.5 inches)79%high
December Weather3°C (38°F)20 mm (0.8 inches)82%moderate

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