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December Weather in Pocatello, United States

Last updated: June 24, 2025

In December, the average temperature in Pocatello, United States hovers around -4°C (26°F). Expect chilly nights where temperatures can plunge to a frigid -18°C (-1°F), while daytime highs may reach a mild 13°C (55°F). With 51 mm (2.0 in) of precipitation spread over 10 days, and an average humidity level of 87%, be prepared for a crisp and damp atmosphere this season!

December Temperature in Pocatello

In December in Pocatello, the average temperature is -4°C (26°F). Maximum temperatures can reach 13°C (55°F), while minimums can drop as low as -18°C (-1°F). Be prepared for a wide range of temperatures, making it essential to pack accordingly for your trip.

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

The chart illustrates December temperature patterns in Pocatello, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Pocatello, December typically has an average temperature of -4°C (26°F), with highs reaching up to 13°C (55°F) and lows dropping to around -18°C (-1°F).
JanFebMarAprMayJunJulAugSepOctNovDec242736445464747262453625
Data source: Temperature data for Pocatello 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 Pocatello

In Pocatello in December, the total precipitation amount is 51 mm (2.0 in) spread over a period of 10 days.

December Precipitation Trends in Pocatello

The chart displays monthly precipitation patterns in Pocatello, 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 Pocatello, December typically receives around 51 mm (2.0 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec516550595630152032443651
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Pocatello

In Pocatello in December humidity is 87%. With average temperature -4°C (26°F), this humidity feels like an icy blanket enveloping you, making outdoor activities challenging and rendering those brisk air moments difficult to bear, as the cold moisture seeps into your clothing and chills you to the bone.

December Average Humidity in Pocatello

This chart illustrates the average monthly humidity levels in Pocatello, 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 Pocatello is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%92%85%76%66%62%53%42%46%64%83%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Pocatello

In Pocatello 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 Pocatello, you can check the information here.

Maximum UV Index Levels in Pocatello for December

The chart shows the monthly maximum UV Index (UVI) for Pocatello 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 Pocatello typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3589101111109643
Data source: Pocatello 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 Pocatello Compares to Other Months

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

This table compares monthly weather conditions in Pocatello, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (24°F)51 mm (2.0 inches)91%moderate
February Weather-3°C (27°F)65 mm (2.5 inches)92%moderate
March Weather2°C (36°F)50 mm (2.0 inches)85%very high
April Weather7°C (44°F)59 mm (2.3 inches)76%very high
May Weather12°C (54°F)56 mm (2.2 inches)66%very high
June Weather18°C (65°F)30 mm (1.2 inches)62%extreme
July Weather23°C (74°F)15 mm (0.6 inches)53%extreme
August Weather22°C (72°F)20 mm (0.8 inches)42%very high
September Weather16°C (62°F)32 mm (1.3 inches)46%very high
October Weather7°C (46°F)44 mm (1.7 inches)64%high
November Weather2°C (36°F)36 mm (1.4 inches)83%moderate
December Weather-4°C (26°F)51 mm (2.0 inches)87%moderate

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