nomadseason

December Weather in Lyman, United States

Last updated: June 24, 2025

In December, the average temperature in Lyman, United States hovers around -5°C (23°F), with a notable range that can dip to a chilly -24°C (-10°F) and peak at a mild 14°C (58°F). Expect 31 mm (1.2 in) of precipitation spread over 8 days, contributing to an average humidity level of 88%—perfect for cozy indoor activities!

December Temperature in Lyman

In December in Lyman, the average temperature is -5°C (23°F). The maximum can reach 14°C (58°F), while the minimum can drop as low as -24°C (-10°F). It's essential to pack warm clothing and be prepared for a wide range of temperatures when traveling during this month.

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

The chart illustrates December temperature patterns in Lyman, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lyman, December typically has an average temperature of -5°C (23°F), with highs reaching up to 14°C (58°F) and lows dropping to around -24°C (-10°F).
JanFebMarAprMayJunJulAugSepOctNovDec222431394962696758423323
Data source: Temperature data for Lyman generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Lyman

In Lyman in December, the precipitation amount is 31 mm (1.2 in) over the course of 8 days.

December Precipitation Trends in Lyman

The chart displays monthly precipitation patterns in Lyman, 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 Lyman, December typically receives around 31 mm (1.2 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec303467506724152429303231
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Lyman

In Lyman in December humidity is 88%. With an average temperature of -5°C (23°F), this humidity feels like an icy blanket enveloping you, making travel uncomfortable as the cold damp air seeps through layers of clothing, chilling you to the bone.

December Average Humidity in Lyman

This chart illustrates the average monthly humidity levels in Lyman, 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 Lyman is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%92%84%75%62%56%44%37%46%67%84%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Lyman

In Lyman 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 Lyman, you can check the information here.

Maximum UV Index Levels in Lyman for December

The chart shows the monthly maximum UV Index (UVI) for Lyman 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 Lyman typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101112121110753
Data source: Lyman 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 Lyman Compares to Other Months

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

This table compares monthly weather conditions in Lyman, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)30 mm (1.2 inches)91%moderate
February Weather-5°C (24°F)34 mm (1.3 inches)92%high
March Weather-1°C (31°F)67 mm (2.6 inches)84%very high
April Weather4°C (39°F)50 mm (2.0 inches)74%very high
May Weather9°C (49°F)67 mm (2.7 inches)62%extreme
June Weather17°C (62°F)24 mm (0.9 inches)56%extreme
July Weather21°C (70°F)15 mm (0.6 inches)44%extreme
August Weather19°C (67°F)24 mm (0.9 inches)37%extreme
September Weather14°C (58°F)29 mm (1.2 inches)46%very high
October Weather5°C (42°F)30 mm (1.2 inches)67%high
November Weather1°C (34°F)32 mm (1.2 inches)84%moderate
December Weather-5°C (23°F)31 mm (1.2 inches)88%moderate

Compare Lyman's Climate with Cities Worldwide