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December Weather in Saint Ignatius, United States

Last updated: June 24, 2025

In December, the average temperature in Saint Ignatius, United States hovers around -3°C (26°F), with a potential minimum plummeting to -24°C (-12°F) and a maximum reaching up to 12°C (55°F). Expect precipitation of about 84 mm (3.3 in) spread over 17 days, contributing to a notably high average humidity of 95%. Stay prepared for chilly, damp conditions!

December Temperature in Saint Ignatius

In December in Saint Ignatius, the average temperature is -3°C (26°F), with a maximum that can reach 12°C (55°F) and a minimum that can drop as low as -24°C (-12°F). It's advisable to pack warm clothing and prepare for fluctuating temperatures if you're planning to travel during this month.

December Weather in Saint Ignatius: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Saint Ignatius, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint Ignatius, December typically has an average temperature of -3°C (26°F), with highs reaching up to 12°C (55°F) and lows dropping to around -24°C (-12°F).
JanFebMarAprMayJunJulAugSepOctNovDec232031384957676555403226
Data source: Temperature data for Saint Ignatius 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 Saint Ignatius

In Saint Ignatius in December, the precipitation amount is 84 mm (3.3 in) spread over 17 days, indicating a relatively wet period.

December Precipitation Trends in Saint Ignatius

The chart displays monthly precipitation patterns in Saint Ignatius, 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 Saint Ignatius, December typically receives around 84 mm (3.3 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec6311470979784213145889484
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Saint Ignatius

In Saint Ignatius in December humidity is 95%. With an average temperature of -3°C (26°F), this humidity feels like a biting chill that seeps into your bones, making any outdoor activity uncomfortable and challenging for travelers.

December Average Humidity in Saint Ignatius

This chart illustrates the average monthly humidity levels in Saint Ignatius, 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 Saint Ignatius is approximately 95%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%92%89%85%80%78%77%66%67%77%89%95%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Saint Ignatius

In Saint Ignatius 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 Saint Ignatius, you can visit Hourly UV Index in Saint Ignatius.

Maximum UV Index Levels in Saint Ignatius for December

The chart shows the monthly maximum UV Index (UVI) for Saint Ignatius 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 Saint Ignatius typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24679101098532
Data source: Saint Ignatius 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 Saint Ignatius Compares to Other Months

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

This table compares monthly weather conditions in Saint Ignatius, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (23°F)63 mm (2.5 inches)93%low
February Weather-7°C (20°F)114 mm (4.5 inches)92%moderate
March Weather0°C (31°F)70 mm (2.8 inches)89%high
April Weather3°C (38°F)97 mm (3.8 inches)85%high
May Weather9°C (49°F)97 mm (3.8 inches)80%very high
June Weather14°C (58°F)84 mm (3.3 inches)78%very high
July Weather19°C (67°F)21 mm (0.8 inches)77%very high
August Weather18°C (65°F)31 mm (1.2 inches)66%very high
September Weather13°C (55°F)45 mm (1.8 inches)67%very high
October Weather5°C (41°F)88 mm (3.5 inches)77%moderate
November Weather0°C (32°F)94 mm (3.7 inches)89%moderate
December Weather-3°C (26°F)84 mm (3.3 inches)95%low

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